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                                                                    Exhibit 4.20






                               REFUNDING AGREEMENT
                                [GPA 1991 AWA-E2]


                          Dated as of November 20, 1996

                                      among

                          AMERICA WEST AIRLINES, INC.,
                                    as Lessee

                            GPA LEASING USA I, INC.,
                             as Original Head Lessee

                                 GPA GROUP plc,
                               as Parent Guarantor

                            WILMINGTON TRUST COMPANY,
                         not in its individual capacity
                       except as expressly provided herein
                           but solely as Owner Trustee

                              FLEET NATIONAL BANK,
                         not in its individual capacity
                       except as expressly provided herein
              but solely as Pass Through Trustee under each of the
                          Pass Through Trust Agreements

                          ----------------------------,
                              as Owner Participant

                              FLEET NATIONAL BANK,
                             as Subordination Agent

                                       and

                              FLEET NATIONAL BANK,
                         not in its individual capacity
                       except as expressly provided herein
                         but solely as Indenture Trustee



                        Secured Equipment Notes Covering
              One IAE International Aero Engines AG V2500-A1 Engine
                         Manufacturer's Serial No. V0049
                      Leased by America West Airlines, Inc.
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                                TABLE OF CONTENTS



                                                                                            PAGE
                                                                                            ----

                                                                                       
SECTION 1.  Purchase of Equipment Notes; Refunding..........................................  5

SECTION 2.  Equipment Notes.................................................................  7

SECTION 3.  Conditions Precedent............................................................  7

SECTION 4.  Certain Conditions Precedent to the
             Obligations of the Original Head Lessee
             and the Parent Guarantor; Certain
             Conditions Precedent to the Obligations
             of the Lessee; Conditions Precedent
             with respect to the Pass Through
             Trustee........................................................................ 15

SECTION 5.  Amendment and Restatement of the
             Original Indenture............................................................. 18

SECTION 6.  Amendment and Restatement of the
             Original Lease................................................................. 19

SECTION 7.  Termination of the Participation
             Agreement; Termination of Sublease,
             etc............................................................................ 19

SECTION 8.  Representations and Warranties of the
             Lessee......................................................................... 19

SECTION 9.  Representations and Warranties.................................................. 24

SECTION 10. Transfer of Owner Participant's
             Interest....................................................................... 39

SECTION 11. [Reserved] ..................................................................... 42

SECTION 12. Quiet Enjoyment................................................................. 42

SECTION 13. Liens      ..................................................................... 43

SECTION 14. Certain Additional Provisions Relating
             to Original Head Lessee, Parent
             Guarantor, Trust Company, Owner Trustee
             and Owner Participant.......................................................... 45

SECTION 15. Certain Retained Rights and Releases............................................ 48



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                                                                                            PAGE
                                                                                            ----

                                                                                       
SECTION 16. Certain Additional Obligations of the
                       Lessee, the Owner Trustee, the Owner
                       Participant and the Indenture Trustee................................. 50

SECTION 17. Lessee Protection of Title....................................................... 50

SECTION 18. Jurisdictional and Related Matters............................................... 50

SECTION 19. Limitation on Recourse........................................................... 51

SECTION 20. Notices    ...................................................................... 52

SECTION 21. Expenses   ...................................................................... 52

SECTION 22. Reliance of Liquidity Provider................................................... 53

SECTION 23. Miscellaneous.................................................................... 53

SECTION 24. Governing Law.................................................................... 54

SECTION 25. Effectiveness.................................................................... 54



                                    Schedules

Schedule I                 Pass Through Trust Agreements
Schedule II                Equipment Notes, Pass Through Trusts and Purchase
                           Price
Schedule III               Holders of Equipment Notes - Payment Instructions



                                    Exhibits

Exhibit A                  Form of Transferee's Parent Guarantee
Exhibit B                  Form of Assignment and Assumption Agreement
Exhibit C                  List of Countries
Exhibit D                  Form of Insurance Broker's Report


                                      Annex

Annex A                    FAA Documents


                                     - ii -
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                               REFUNDING AGREEMENT
                                [GPA 1991 AWA-E2]


                  REFUNDING AGREEMENT [GPA 1991 AWA-E2] (this "Agreement"),
dated as of November 20, 1996, among (i) AMERICA WEST AIRLINES, INC., a Delaware
corporation (the "Lessee"), (ii) GPA LEASING USA I, INC., a Connecticut
corporation (the "Original Head Lessee"), (iii) GPA GROUP plc, an Irish public
limited company (the "Parent Guarantor"), (iv) ______________________________, a
Delaware corporation (the "Owner Participant"), (v) WILMINGTON TRUST COMPANY, a
Delaware banking corporation (the "Trust Company"), not in its individual
capacity except as otherwise expressly provided herein, but solely as owner
trustee (the "Owner Trustee") under the Trust Agreement (as defined below), (vi)
FLEET NATIONAL BANK, a national banking association, not in its individual
capacity except as otherwise expressly provided herein, but solely as pass
through trustee (in such capacity, the "Pass Through Trustee") under each of the
five separate Pass Through Trust Agreements (as defined below), (vii) FLEET
NATIONAL BANK, not in its individual capacity, but solely as subordination agent
and trustee (in such capacity, the "Subordination Agent") under the
Intercreditor Agreement (as defined below), and (viii) FLEET NATIONAL BANK
(formerly known as Fleet National Bank of Connecticut, Shawmut Bank Connecticut,
National Association, and The Connecticut National Bank), a national banking
association, not in its individual capacity except as otherwise expressly
provided herein, but solely as Indenture Trustee (the "Indenture Trustee") under
the Indenture (as defined below).

                  Except as otherwise defined in this Agreement, the terms used
herein in capitalized form shall have the meanings attributed thereto in the
Indenture (whether set forth therein or by reference to another document) as if
the Restatement Date had occurred.

                              W I T N E S S E T H:

                  WHEREAS, the Original Head Lessee, the Parent Guarantor, the
Owner Participant, Sanwa International PLC, as Lender (and predecessor in
interest to the Mitsubishi Trust and Banking Corporation, New York Branch, and
The Hachijuni Bank, Ltd., New York Branch, collectively, the "Lenders"), the
Owner Trustee and the Indenture Trustee entered into the Participation Agreement
[GPA 1991 AWA-E2], dated as of March 15, 1991 (as amended, supplemented or
otherwise modified from time to time, the "Participation Agreement"), providing
for the financing of one IAE International Aero Engines AG V2500-A1 Engine (the
"Engine");

                  WHEREAS, concurrently with the execution and delivery
of the Participation Agreement, the Owner Trustee and the
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Indenture Trustee entered into the Trust Indenture and Security Agreement [GPA
1991 AWA-E2], dated as of March 15, 1991, as supplemented by Trust Indenture
Supplement No. 1 dated March 27, 1991, as amended by Amendment No. 1 to Trust
Indenture and Security Agreement dated March 27, 1992, and as further amended by
Amendment No. 2 to Trust Indenture and Security Agreement dated as of July 29,
1993 (as so amended, supplemented or otherwise modified to the date hereof, the
"Original Indenture"), pursuant to which the Owner Trustee issued loan
certificates substantially in the form set forth in Section 2.02 thereof (the
"Original Certificates") to the Lenders as evidence of the indebtedness then
being made by the Owner Trustee to finance a portion of the purchase price of
the Engine;

                  WHEREAS, concurrently with the execution and delivery of the
Participation Agreement, the Owner Trustee and the Original Head Lessee entered
into the Engine Lease Agreement [GPA 1991 AWA-E2], dated as of March 15, 1991,
as supplemented by Lease Supplement [GPA 1991 AWA-E2] No. 1 dated March 27, 1991
(as so supplemented, the "Original Lease"), whereby, subject to the terms and
conditions set forth therein, the Owner Trustee agreed to lease to the Original
Head Lessee, and the Original Head Lessee agreed to lease from the Owner
Trustee, the Engine commencing on the Delivery Date (as therein defined);

                  WHEREAS, concurrently with the execution and delivery of the
Participation Agreement, the Parent Guarantor entered into the Parent Head Lease
Guaranty [GPA 1991 AWA-E2] dated as of March 15, 1991 (the "Parent Head Lease
Guaranty") for the benefit of the Owner Trustee pursuant to which the Parent
Guarantor guaranteed all of the obligations of the Original Head Lessee under
the Operative Documents (as defined in the Participation Agreement);

                  WHEREAS, concurrently with the execution and delivery of the
Participation Agreement, the Owner Participant and the Trust Company entered
into the Trust Agreement [GPA 1991 AWA-E2], dated as of March 15, 1991, as
supplemented by Trust Agreement Supplement [GPA 1991 AWA-E2] No. 1 dated March
27, 1991 (as amended, supplemented or otherwise modified to the date hereof, the
"Original Trust Agreement"), pursuant to which the Owner Trustee agreed, among
other things, to hold the Trust Estate defined in Section 1.1 thereof for the
benefit of the Owner Participant thereunder;

                  WHEREAS, concurrently with the execution and delivery of the
Participation Agreement, the Owner Participant and the Original Head Lessee
entered into the Head Lease Tax Indemnification Agreement [GPA 1991 AWA-E2],
dated as of March 15, 1991 (as amended, supplemented or otherwise modified to
the date hereof, the "Head Lease TIA");


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                  WHEREAS, prior to the execution and delivery of the
Participation Agreement, the Original Head Lessee in its capacity as sublessor
(in such capacity, the "Sublessor") and America West Airlines, Inc. in its
capacity as sublessee (in such capacity, the "Sublessee") entered into the
Engine Sublease Agreement [GPA 1990 AWA-E2] dated as of December 12, 1990, as
supplemented by Sublease Supplement No. 1 [GPA 1990 AWA-E2] dated February 8,
1991, as amended by Amendment No. 1 to Engine Sublease Agreement [GPA 1990
AWA-E2] dated as of August 26, 1991 (as amended, supplemented or otherwise
modified to the date hereof, the "Sublease"), whereby, subject to the terms and
conditions set forth therein, the Sublessor agreed to sublease to the Sublessee,
and the Sublessee agreed to sublease from the Sublessor, the Engine commencing
on the Delivery Date (as defined therein);

                  WHEREAS, concurrently with the execution and delivery of the
Sublease, the Original Head Lessee and the Sublessee entered into the Sublease
Tax Indemnification Agreement [GPA 1991 AWA-E2], dated as of March 15, 1991 (as
amended, modified or otherwise supplemented to the date hereof, the "Sublease
TIA");

                  WHEREAS, concurrently with the execution and delivery of the
Sublease, the Sublessor and the Owner Trustee entered into the Assignment of
Sublease [GPA 1991 AWA-E2] dated as of March 15, 1991 (as amended, modified or
otherwise supplemented to the date hereof, the "Assignment of Sublease");

                  WHEREAS, at the Closing (as defined below), the Owner Trustee
and the Indenture Trustee will amend and restate the Original Indenture as the
First Amended and Restated Trust Indenture and Security Agreement [GPA 1991
AWA-E2], dated as of the Restatement Date, as supplemented by Trust Indenture
Supplement No. 2 dated the Restatement Date (the "First Amended and Restated
Indenture" and, the First Amended and Restated Indenture as so amended and
restated, the "Indenture"), under which Indenture the Owner Trustee will issue
secured equipment notes substantially in the form set forth in Section 2.01
thereof (the "Equipment Notes") in five series, the proceeds from the issuance
and sale of which will be applied in part to the prepayment in full of the
Original Certificates;

                  WHEREAS, at the Closing, the Owner Trustee, the Original Head
Lessee, the Sublessee and the Indenture Trustee will enter into Assignment and
Amendment No. 1 and Sublease Termination Agreement dated as of the Restatement
Date ("Lease Amendment No. 1") containing assignments, modifications and
terminations necessary to give effect to the transactions described herein and
providing, inter alia, for the amendment and restatement in its entirety of the
Original Lease as the Amended and Restated Lease (as so amended and restated,
the "Lease");


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                  WHEREAS, at the Closing, the Owner Participant and the Owner
Trustee will enter into Trust Agreement Supplement [GPA 1991 AWA-E2] No. 2
("Trust Supplement No. 2"), amending the Original Trust Agreement (as so amended
and as further amended, supplemented or otherwise modified from time to time in
accordance with the terms thereof and hereof, the "Trust Agreement");

                  WHEREAS, at the Closing, the Owner Participant and the
Original Head Lessee will enter into the Amended and Restated Head Lease Tax
Indemnification Agreement, amending and restating the Head Lease TIA (as so
amended and restated, the "Amended and Restated Head Lease TIA") and the
Sublessor and the Sublessee will enter into the Amended and Restated Sublease
Tax Indemnification Agreement amending and restating the Sublease TIA (as so
amended and restated, the "Amended and Restated Sublease TIA");

                  WHEREAS, pursuant to the Pass Through Trust Agreement and each
of the Pass Through Trust Supplements set forth in Schedule I hereto
(collectively, the "Pass Through Trust Agreements"), on the Restatement Date,
five separate grantor trusts (collectively, the "Pass Through Trusts" and,
individually, a "Pass Through Trust") will be created to facilitate certain of
the transactions contemplated hereby, including, without limitation, the
issuance and sale by each Pass Through Trust of pass through certificates
pursuant thereto (collectively, the "Certificates");

                  WHEREAS, the proceeds from the issuance and sale of the
Certificates by each Pass Through Trust will be applied by the Pass Through
Trustee at the Closing to purchase from the Owner Trustee, on behalf of each
Pass Through Trust, all of the Equipment Notes bearing the same interest rate as
the Certificates issued by such Pass Through Trust;

                  WHEREAS, at the Closing, (i) Kredietbank N.V., New York Branch
(the "Liquidity Provider") will enter into three revolving credit agreements
(each, a "Liquidity Facility"), for the benefit of the Holders of Equipment
Notes of each of three Pass Through Trusts, with the Subordination Agent, as
agent for the Pass Through Trustee on behalf of each such Pass Through Trust;
and (ii) the Pass Through Trustee, the Liquidity Provider and the Subordination
Agent will enter into the Intercreditor Agreement, dated as of the Restatement
Date (the "Intercreditor Agreement"); and

                  WHEREAS, the Equipment Notes will be held by the Subordination
Agent pursuant to the Intercreditor Agreement on behalf of the Pass Through
Trusts;


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                  NOW, THEREFORE, in consideration of the foregoing premises and
the mutual agreements herein contained and other good and valuable
consideration, the receipt and adequacy of which are hereby acknowledged, the
parties hereto agree as follows:

                  SECTION 1. Purchase of Equipment Notes; Refunding. (a) Subject
to the satisfaction or waiver of the conditions set forth herein, on November
26, 1996 or on such other date agreed to by the parties hereto (the "Restatement
Date"), the following actions shall take place simultaneously:

                    (i) (A) the Sublessee shall pay to the Sublessor as a
         payment of Supplemental Rent under the Sublease all accrued and unpaid
         Rent under the Sublease up to the Restatement Date, if any, (less any
         amounts for which Sublessee is indemnified by Sublessor) and (B) the
         Original Head Lessee shall pay to the Owner Trustee, as a payment of
         Supplemental Rent under the Original Lease, an amount equal to the
         accrued and unpaid interest on the Original Certificates up to but not
         including the Restatement Date plus an amount (the "Prepayment Amount")
         equal to all other amounts due to the holders of the Original
         Certificates under the Original Indenture and the other Operative
         Documents (as defined in the Original Indenture) payable on the
         Restatement Date under Section 2.12 of the Original Indenture;

                   (ii) the Pass Through Trustee for each Pass Through Trust
         shall pay to the Owner Trustee the aggregate purchase price of the
         Equipment Notes being issued to such Pass Through Trustee as set forth
         in clause (xii) below;

                  (iii) the Owner Trustee (to the extent of proceeds received
         under clauses (i) and (ii)) shall pay to the Indenture Trustee for the
         benefit of the holders of the Original Certificates an amount equal to
         the aggregate principal amount of the Original Certificates outstanding
         on the Restatement Date, together with accrued and unpaid interest on
         the Original Certificates up to but not including the Restatement Date
         plus the Prepayment Amount;

                   (iv) the Indenture Trustee shall disburse to the holders of
         the Original Certificates the amounts of principal, interest, Break
         Funding Cost, if any, described in clause (iii) above, owing to them on
         the Restatement Date with respect to the Original Certificates as a
         prepayment of the Original Certificates;

                    (v)    the Indenture Trustee shall receive the Original
         Certificates for cancellation;


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                   (vi) the Owner Trustee and the Indenture Trustee shall enter
         into the Indenture (including Trust Indenture Supplement No. 2);

                  (vii) the Original Head Lessee, the Sublessee, the Owner
         Trustee and the Indenture Trustee shall enter into Lease Amendment No.
         1;

                 (viii)    the Owner Participant and the Trust Company shall
         enter into Trust Supplement No. 2;

                   (ix) the Original Head Lessee and the Owner Participant shall
         enter into the Amended and Restated Head Lease TIA and the Sublessor
         and the Sublessee shall enter into the Amended and Restated Sublease
         TIA;

                    (x) the Original Head Lessee, GPA Leasing USA Sub I, Inc.,
         the Parent Guarantor and the Lessee shall enter into an agreement in
         form and substance reasonably satisfactory to each, inter alia,
         confirming the termination of certain rights which the Parent Guarantor
         has to "put" engines to the Lessee and the obligation of the Lessee to
         accept and lease such engines (the "Put Termination Agreement");

                   (xi) the Parent Guarantor and/or one or more of its
         affiliates and the Lessee will enter into an agreement (the "Deed of
         Indemnity") pursuant to which the Parent Guarantor and/or one or more
         of its affiliates, on the one hand, and the Lessee, on the other, will
         indemnify each other with respect to certain information included in
         the Prospectus and the Registration Statement (as such terms are
         defined in the Underwriting Agreement) (the "Prospectus" and the
         "Registration Statement", respectively); and

                  (xii) the Owner Trustee shall issue, pursuant to Article II of
         the Indenture, to the Subordination Agent on behalf of the Pass Through
         Trustee for each of the Pass Through Trusts, Equipment Notes of the
         maturity and aggregate principal amount, bearing the interest rate and
         for the purchase price set forth on Schedule II hereto opposite the
         name of such Pass Through Trust.

                  (b) The Owner Participant, by its execution and delivery
hereof, requests and directs the Owner Trustee to execute and deliver this
Agreement and, subject to the terms hereof, to take the actions contemplated
herein.

                  (c) The closing (the "Closing") of the transactions described
in this Agreement shall take place at the offices of Milbank, Tweed, Hadley &
McCloy, 1 Chase Manhattan Plaza, New


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York, New York 10005, on the Restatement Date, or at such other place as the
parties hereto may agree.

                  (d) All payments pursuant to this Section 1 shall be made in
immediately available funds to such accounts and at such banks as the parties
hereto shall designate in writing not less than one Business Day prior to the
Restatement Date.

                  (e) In order to facilitate the transactions contemplated
hereby, the Original Head Lessee, GPA Leasing USA Sub I, Inc., the Parent
Guarantor and the Lessee have entered into the Underwriting Agreement, dated as
of November 20, 1996 (the "Underwriting Agreement"), among such Persons and
Morgan Stanley & Co., Citicorp Securities, Inc., Lehman Brothers, Inc. and
Salomon Brothers Inc (collectively, the "Underwriters"), and, subject to the
terms and conditions hereof, the Lessee will enter into each of the Pass Through
Trust Agreements.

                  SECTION 2. Equipment Notes. The Equipment Notes shall be
payable as to principal in accordance with the terms of the Indenture, and the
Equipment Notes shall provide for a fixed rate of interest per annum and shall
contain the terms and provisions provided for the Equipment Notes in the
Indenture. The Owner Trustee shall execute, and the Indenture Trustee shall
authenticate and deliver to the Pass Through Trustee for each Pass Through
Trust, a principal amount of Equipment Notes bearing the interest rate set forth
opposite the name of such Pass Through Trust on Schedule II hereto, which
Equipment Notes in the aggregate shall be in the principal amounts set forth on
Schedule II hereto. Subject to the terms hereof, of the Pass Through Trust
Agreements and of the other Operative Documents, all such Equipment Notes shall
be dated and authenticated as of the Restatement Date and shall bear interest
therefrom, shall be registered in such names as shall be specified by the
Subordination Agent and shall be paid in the manner and at such places as are
set forth in the Indenture.

                  SECTION 3. Conditions Precedent. The obligations of the Pass
Through Trustee to make the payments described in Section 1(a)(ii) and the
obligations of the Owner Trustee to make the payments described in Section
1(a)(iii) and the obligations of each of the Pass Through Trustee, the Owner
Trustee, the Owner Participant and the Indenture Trustee to participate in the
transactions contemplated by this Agreement on the Restatement Date are subject
to the fulfillment, prior to or on the Restatement Date, of the following
conditions precedent (except that paragraphs (a), (f) and (j) shall not be
conditions precedent to the obligations of the Owner Trustee hereunder,
paragraphs (g) and (l) shall not be conditions precedent to the obligations of
the Owner Participant hereunder and paragraphs (e) and (k) shall


                                      - 7 -
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not be conditions precedent to the obligations of the Indenture
Trustee hereunder):

                  (a) The Owner Trustee shall have tendered the Equipment Notes
         to the Indenture Trustee for authentication, and the Indenture Trustee
         shall have authenticated such Equipment Notes and shall have tendered
         the Equipment Notes to the Subordination Agent on behalf of the Pass
         Through Trustee in accordance with Section 1.

                  (b) The Pass Through Trustee, the Owner Trustee and the Owner
         Participant each shall have received executed counterparts of each of
         the following documents and the Indenture Trustee shall have received
         executed counterparts of items (1) through (7):

                           (1) this Agreement;

                           (2) Lease Amendment No. 1, the Amended and Restated
                               Lease and Lease Supplement No. 2;

                           (3) Trust Supplement No. 2;

                           (4) the First Amended and Restated Indenture and
                               Trust Indenture Supplement No. 2;

                           (5) each of the Pass Through Trust Agreements and
                               each Pass Through Trust Supplement set forth in
                               Schedule I hereto;

                           (6) the Intercreditor Agreement; and

                           (7) the Liquidity Facility for each of the Class A,
                               Class B and Class C Trusts (as defined in the
                               Intercreditor Agreement).

                  (c)  The Pass Through Trustee, the Indenture Trustee,
         the Owner Trustee and the Owner Participant each shall have
         received the following:

                           (1) an incumbency certificate of each of the Original
                  Head Lessee, the Lessee and the Parent Guarantor as to the
                  person or persons authorized to execute and deliver this
                  Agreement and each of the other documents to be executed on
                  behalf of such Person in connection with the transactions
                  contemplated hereby (including, without limitation, each of
                  the documents referred to herein) and as to the signatures of
                  such person or persons;


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                           (2) a copy of the resolutions of the board of
                  directors of each of the Original Head Lessee, the Lessee and
                  the Parent Guarantor or the applicable committee thereof,
                  certified by the Secretary or an Assistant Secretary of such
                  Person, duly authorizing the transactions contemplated hereby
                  and the execution, delivery and performance of each of the
                  documents required to be executed and delivered on behalf of
                  such Person in connection with the transactions contemplated
                  hereby;

                           (3) a copy of the certificate of incorporation of
                  each of the Original Head Lessee and the Lessee, certified by
                  the Secretary of State of its state of incorporation, a copy
                  of the by-laws of each of the Original Head Lessee and the
                  Lessee, certified by the Secretary or Assistant Secretary of
                  such Person, and a certificate or other evidence from the
                  Secretary of State of its state of incorporation, dated as of
                  a date reasonably near the Restatement Date, as to its due
                  incorporation and good standing in such state; and

                           (4) a copy of the Memorandum and Articles of
                  Association of the Parent Guarantor certified to be true and
                  correct by the Secretary or an Assistant Secretary of the
                  Parent Guarantor.

                  (d) The Pass Through Trustee, the Indenture Trustee, the Owner
         Trustee and the Owner Participant each shall have received, in the case
         of (3) below, a certificate signed by an authorized officer of the
         Lessee and, in the case of (1) and (2) below, a certificate signed by
         an authorized officer of the Original Head Lessee, dated the
         Restatement Date, certifying that:

                           (1) the Original Lease and the Original Indenture
                  have each been duly recorded with the FAA pursuant to the
                  sections of Title 49 of the United States Code relating to
                  aviation (the "Federal Aviation Act");

                           (2) Lease Amendment No. 1, the Amended and Restated
                  Lease, Lease Supplement No. 2, the First Amended and Restated
                  Indenture, Trust Indenture Supplement No. 2 and Trust
                  Supplement No. 2 covering the Engine shall have been duly
                  filed for recordation with the FAA pursuant to the Federal
                  Aviation Act; and

                           (3) the representations and warranties contained
                  herein of the Lessee are correct as of the Restatement Date,
                  except to the extent that such representations and warranties
                  relate solely to an earlier date (in


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                  which case such representations and warranties were correct on
                  and as of such earlier date).

                  (e) The Pass Through Trustee, the Owner Trustee and the Owner
         Participant each shall have received the following:

                           (1) an incumbency certificate of the Indenture
                  Trustee as to the person or persons authorized to execute and
                  deliver this Agreement and each of the other documents to be
                  executed on behalf of the Indenture Trustee in connection with
                  the transactions contemplated hereby (including, without
                  limitation, each of the documents referred to herein) and as
                  to the signatures of such person or persons;

                           (2) a copy of the resolutions of the board of
                  directors of the Indenture Trustee, certified by the
                  Secretary, an Assistant Secretary or other appropriate officer
                  of the Indenture Trustee, duly authorizing the transactions
                  contemplated hereby and the execution, delivery and
                  performance of each of the documents required to be executed
                  and delivered on behalf of the Indenture Trustee in connection
                  with the transactions contemplated hereby;

                           (3) a copy of the articles of association and by-laws
                  of the Indenture Trustee, each certified by the Secretary, an
                  Assistant Secretary or other appropriate officer of the
                  Indenture Trustee; and

                           (4) a certificate signed by an authorized officer of
                  the Indenture Trustee, dated the Restatement Date, certifying
                  that the representations and warranties contained herein of
                  the Indenture Trustee are correct as though made on and as of
                  the Restatement Date, except to the extent that such
                  representations and warranties relate solely to an earlier
                  date (in which case such representations and warranties are
                  correct on and as of such earlier date).

                  (f) The Pass Through Trustee, the Indenture Trustee and the
         Owner Participant each shall have received the following:

                           (1) an incumbency certificate of the Owner Trustee as
                  to the person or persons authorized to execute and deliver
                  this Agreement and each of the other documents to be executed
                  on behalf of the Owner Trustee in connection with the
                  transactions contemplated hereby (including, without
                  limitation, each of


                                     - 10 -
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                  the documents referred to herein) and as to the
                  signatures of such person or persons;

                           (2) a copy of the resolutions of the board of
                  directors of the Owner Trustee, certified by the Secretary or
                  an Assistant Secretary of the Owner Trustee, duly authorizing
                  the transactions contemplated hereby and the execution,
                  delivery and performance of each of the documents required to
                  be executed and delivered on behalf of the Owner Trustee in
                  connection with the transactions contemplated hereby;

                           (3) a copy of the articles of association and by-laws
                  of the Owner Trustee, each certified by the Secretary or an
                  Assistant Secretary of the Owner Trustee; and

                           (4) a certificate signed by an authorized officer of
                  the Owner Trustee, dated the Restatement Date, certifying that
                  the representations and warranties contained herein of the
                  Owner Trustee are correct as though made on and as of the
                  Restatement Date, except to the extent that such
                  representations and warranties relate solely to an earlier
                  date (in which case such representations and warranties are
                  correct on and as of such earlier date).

                  (g) The Pass Through Trustee, the Indenture Trustee and the
         Owner Trustee each shall have received the following:

                           (1) an incumbency certificate of the Owner
                  Participant as to the person or persons authorized to execute
                  and deliver this Agreement and each of the other documents to
                  be executed on behalf of the Owner Participant in connection
                  with the transactions contemplated hereby (including, without
                  limitation, each of the documents referred to herein) and as
                  to the signatures of such person or persons;

                           (2) a copy of the resolutions of the board of
                  directors of the Owner Participant or the applicable authority
                  designated by the board of directors thereof, certified by the
                  Secretary or an Assistant Secretary of the Owner Participant,
                  duly authorizing the transactions contemplated hereby and the
                  execution, delivery and performance of each of the documents
                  required to be executed and delivered on behalf of the Owner
                  Participant in connection with the transactions contemplated
                  hereby;


                                     - 11 -
   15
                           (3) a copy of the certificate of incorporation of the
                  Owner Participant, certified by the Secretary of State of its
                  state of incorporation, a copy of the by-laws of the Owner
                  Participant, certified by the Secretary or Assistant Secretary
                  of the Owner Participant, and a certificate or other evidence
                  from the Secretary of State of its state of incorporation,
                  dated as of a date reasonably near the Restatement Date, as to
                  its due incorporation and good standing in such state; and

                           (4) a certificate signed by an authorized
                  representative of the Owner Participant, dated the Restatement
                  Date, certifying that the representations and warranties
                  contained herein of the Owner Participant are correct as
                  though made on and as of the Restatement Date, except to the
                  extent that such representations and warranties relate solely
                  to an earlier date (in which case such representations and
                  warranties are correct on and as of such earlier date).

                  (h) The Pass Through Trustee, the Indenture Trustee, the Owner
         Trustee and the Owner Participant each shall have received from the
         Lessee a report from Willis Corroon in substantially the form of
         Exhibit D attached hereto.

                  (i) The Pass Through Trustee, the Indenture Trustee, the Owner
         Trustee and the Owner Participant each shall have received an opinion
         addressed to it from (i) Latham & Watkins, special counsel for the
         Lessee, (ii) Andrews & Kurth L.L.P., special counsel for the Lessee,
         (iii) the Senior Vice President-Legal Affairs of Lessee and (iv) Lewis
         & Roca, special Arizona counsel for the Lessee, in each case in form
         and substance satisfactory to each of them.

                  (j) The Pass Through Trustee, the Indenture Trustee and the
         Owner Participant each shall have received an opinion addressed to it
         from Morris, James, Hitchens & Williams, special counsel for the Owner
         Trustee, in form and substance satisfactory to each of them.

                  (k) The Pass Through Trustee, the Owner Trustee and the Owner
         Participant each shall have received an opinion addressed to it from
         Shipman & Goodwin LLP, special counsel for the Indenture Trustee, the
         Subordination Agent and the Pass Through Trustee, in each case in form
         and substance satisfactory to each of them.

                  (l) The Pass Through Trustee, the Indenture Trustee and the
         Owner Trustee each shall have received an opinion addressed to it from
         (i) Hunton & Williams, special counsel


                                     - 12 -
   16
         for the Owner Participant and (ii) in-house counsel for the Owner
         Participant, in each case in form and substance satisfactory to each of
         them.

                  (m) The Pass Through Trustee, the Owner Trustee and the Owner
         Participant shall have received an opinion from (i) White & Case,
         special counsel for the Liquidity Provider, and (ii) in-house counsel
         for the Liquidity Provider, in each case in form and substance
         satisfactory to the Pass Through Trustee, the Owner Trustee and the
         Owner Participant.

                  (n) The Pass Through Trustee, the Owner Trustee, the Owner
         Participant and the Indenture Trustee each shall have received an
         opinion addressed to it from Daugherty, Fowler & Peregrin, special
         counsel in Oklahoma City, Oklahoma, in form and substance satisfactory
         to each of them.

                  (o) The Pass Through Trustee, the Owner Trustee, the Owner
         Participant and the Indenture Trustee each shall have received an
         opinion addressed to it from Paul, Hastings, Janofsky & Walker LLP,
         special New York counsel for the Original Head Lessee and the Parent
         Guarantor, in form and substance satisfactory to each of them.

                  (p) The Pass Through Trustee, the Owner Trustee, the Owner
         Participant and the Indenture Trustee each shall have received an
         opinion addressed to it from McCann FitzGerald, special Irish counsel
         for the Parent Guarantor, in form and substance satisfactory to each of
         them.

                  (q) The Original Head Lessee, the Lessee, GPA Leasing USA Sub
         I, Inc. and the Parent Guarantor shall have entered into the
         Underwriting Agreement and the Lessee shall have entered into each of
         the Pass Through Trust Agreements, the Certificates shall have been
         issued and sold pursuant to the Underwriting Agreement and the Pass
         Through Trust Agreements, and the Underwriters shall have transferred
         to the Pass Through Trustee in immediately available funds an amount
         equal to the aggregate purchase price of the Equipment Notes to be
         purchased from the Owner Trustee.

                  (r) The Original Head Lessee and the Owner Participant shall
         each have executed and delivered to the other the Amended and Restated
         Head Lease TIA.

                  (s) The Sublessor and the Sublessee shall each have executed
         and delivered to the other the Amended and Restated Sublease TIA.


                                     - 13 -
   17
                  (t) No change shall have occurred after the date of this
         Agreement in applicable law or regulations thereunder or
         interpretations thereof by appropriate regulatory authorities or any
         court that would make it illegal for the Pass Through Trustee to make
         the payments described in Section 1(a)(ii) or for the Lessee, the
         Indenture Trustee, the Owner Trustee or the Owner Participant or any
         other party hereto to participate in the transactions contemplated by
         this Agreement on the Restatement Date.

                  (u) All approvals and consents of any trustee or holder of any
         indebtedness or obligations of the Lessee which are required in
         connection with the Pass Through Trustee's making of the payments
         described in Section 1(a)(ii) or the Owner Trustee's or the Owner
         Participant's participation in the transactions contemplated by this
         Agreement on the Restatement Date shall have been duly obtained.

                  (v) Uniform Commercial Code financing, termination, amendment
         and continuation statement or statements covering all of the security
         interests created by or pursuant to the Indenture that are not covered
         by the recording system established by the Federal Aviation Act shall
         have been executed and delivered by the Original Head Lessee, the
         Lessee, the Indenture Trustee and the Owner Trustee, as the case may
         be, and such financing, termination, amendment and continuation
         statement or statements or documents to the same purposes shall have
         been duly filed in all places necessary or advisable, and any
         additional Uniform Commercial Code financing, termination, amendment
         and continuation statements deemed advisable by the Original Head
         Lessee, the Lessee, the Owner Participant or the Indenture Trustee
         shall have been executed and delivered by the Original Head Lessee, the
         Lessee, the Indenture Trustee or the Owner Trustee, as the case may be,
         and duly filed in all places advisable.

                  (w) No change shall have occurred after the date of this
         Agreement in applicable law or regulations thereunder or
         interpretations thereof by appropriate regulatory authorities or any
         court that would adversely affect the tax consequences of the
         transactions contemplated by this Agreement to the Owner Participant,
         the Owner Trustee or any of their respective Affiliates.

                  (x) The Owner Trustee shall have received a letter of credit
         in the amount of $200,000 from the Lessee in the form of Exhibit D-2 to
         the Lease.


                                     - 14 -
   18
                  (y) The Owner Participant shall have received any other
         documents and evidence as the Owner Participant or its counsel may
         request.

                  Promptly following the recording of Lease Amendment No. 1, the
Amended and Restated Lease (including Lease Supplement No. 2) and the First
Amended and Restated Indenture (including Trust Indenture Supplement No. 2)
pursuant to the Federal Aviation Act, the Original Head Lessee will cause
Daugherty, Fowler & Peregrin, special counsel in Oklahoma City, Oklahoma, to
deliver to the Pass Through Trustee, the Lessee, the Indenture Trustee, the
Owner Participant and the Owner Trustee an opinion as to the due recording of
Lease Amendment No. 1, the Amended and Restated Lease, Lease Supplement No. 2,
the First Amended and Restated Indenture, Trust Indenture Supplement No. 2 and
Trust Supplement No. 2.

                  SECTION 4. Certain Conditions Precedent to the Obligations of
the Original Head Lessee and the Parent Guarantor; Certain Conditions Precedent
to the Obligations of the Lessee; Conditions Precedent with respect to the Pass
Through Trustee. (a) The obligations of the Original Head Lessee and the Parent
Guarantor to participate in the transactions contemplated by this Agreement on
the Restatement Date, and to execute and deliver this Agreement are subject to
the fulfillment, prior to or on the Restatement Date, of the following
conditions precedent:

                  (i) Each of the Original Head Lessee and the Parent Guarantor
         shall have received counterparts of the following documents executed by
         each of the parties thereto other than the Original Head Lessee and the
         Parent Guarantor:

                           (1)      this Agreement;

                           (2)      Lease Amendment No. 1, the Amended and
                                    Restated Lease and Lease Supplement No. 2;

                           (3)      the Amended and Restated Head Lease TIA;

                           (4)      the Amended and Restated Sublease TIA;

                           (5)      the Put Termination Agreement;

                           (6)      the Deed of Indemnity;

                           (7)      the Underwriting Agreement;

                           (8)      Uniform Commercial Code termination
                                    statements relating to the Original Head
                                    Lease executed by the Owner Trustee and/or
                                    the Indenture Trustee and such other
                                    releases


                                     - 15 -
   19
                                    and terminations as it may reasonably
                                    request; and

                           (9)      that certain letter agreement dated as of
                                    the Restatement Date relating to Stipulated
                                    Loss Values with respect to the Amended and
                                    Restated Lease (the "SLV Letter Agreement").

             (ii) Each of the Original Head Lessee and the Parent Guarantor
         shall have received originals of the following documents:

                           (1)      the incumbency certificate of the Lessee
                                    referred to in Section 3(c)(1);

                           (2)      the resolutions of the Lessee referred to in
                                    Section 3(c)(2);

                           (3)      the documents referred to in Section 3(e),
                                    Section 3(f) and Section 3(g);

                           (4)      the opinions referred to in Section 3(i),
                                    Section 3(j), Section 3(k), Section 3(l),
                                    Section 3(m) and Section 3(n), in each case
                                    addressed to each of the Original Head
                                    Lessee and the Parent Guarantor and in form
                                    and substance satisfactory to each of them;

                           (5)      the opinions of Paul, Hastings, Janofsky &
                                    Walker LLP and Milbank, Tweed, Hadley &
                                    McCloy with respect to certain matters
                                    relating to and described in the Prospectus,
                                    in each case addressed to the Original Head
                                    Lessee and the Parent Guarantor and in form
                                    and substance reasonably satisfactory to
                                    each of them; and

                           (6)      the report referred to in Section 3(h)
                                    addressed to each of the Original Head
                                    Lessee and the Parent Guarantor.

             (iii) Each of the Original Head Lessee and the Parent Guarantor
         shall have received such other documents and evidence with respect to
         each other party hereto as each of them or its counsel may reasonably
         request in order to establish the due consummation of the transactions
         contemplated by this Agreement and the "Refunding Agreements" (as
         defined in the Registration Statement), the taking of all necessary
         action in connection therewith and compliance with the conditions
         herein or therein set forth.


                                     - 16 -
   20
                  (b) The obligations of the Lessee to make the payment
described in Section 1(a)(i)(A) (if any), to participate in the transactions
contemplated by this Agreement on the Restatement Date, and to execute and
deliver each of the Pass Through Trust Agreements are subject to the
fulfillment, prior to or on the Restatement Date, of the following conditions
precedent:

                  (i) The Lessee shall have received counterparts of the
         following documents executed by each of the parties thereto other than
         Lessee:

                           (1)      this Agreement;

                           (2)      Lease Amendment No. 1, the Amended and
                                    Restated Lease and Lease Supplement No. 2;

                           (3)      the Amended and Restated Sublease TIA;

                           (4)      the Put Termination Agreement;

                           (5)      the Deed of Indemnity;

                           (6)      the Pass Through Trust Agreements;

                           (7)      the Underwriting Agreement;

                           (8)      Uniform Commercial Code termination
                                    statements relating to the Sublease executed
                                    by the Original Head Lessee; and

                           (9)      the SLV Letter Agreement.

                  (ii) The Lessee shall have received originals of the following
         documents:

                           (1)      the incumbency certificate of the Original
                                    Head Lessee and Parent Guarantor referred to
                                    in Section 3(c)(1);

                           (2)      the resolutions of the Original Head Lessee
                                    and Parent Guarantor referred to in
                                    Section 3(c)(2);

                           (3)      the documents referred to in Section 3(e),
                                    Section 3(f) and Section 3(g);

                           (4)      the opinions referred to in Section 3(j),
                                    Section 3(k), Section 3(l), Section 3(m),
                                    Section 3(n), Section 3(o) and Section 3(p),
                                    in each case addressed to Lessee and in form
                                    and substance satisfactory to Lessee; and


                                     - 17 -
   21
                           (5)      the opinions of Paul, Hastings, Janofsky &
                                    Walker LLP and Milbank, Tweed, Hadley &
                                    McCloy with respect to certain matters
                                    relating to and described in the Prospectus,
                                    in each case addressed to Lessee and in form
                                    and substance reasonably satisfactory to
                                    Lessee.

                  (iii) The Lessee shall have received such other documents and
         evidence with respect to each other party hereto as Lessee or its
         counsel may reasonably request in order to establish the due
         consummation of the transactions contemplated by this Agreement and the
         "Refunding Agreements" (as defined in the Registration Statement), the
         taking of all necessary action in connection therewith and compliance
         with the conditions herein and therein set forth.

                  (c) The respective obligations of each of the Lessee, the Pass
Through Trustee (solely as to clause (ii)), the Original Head Lessee, the Owner
Participant, the Owner Trustee and the Indenture Trustee to participate in the
transactions contemplated hereby is subject to the receipt by each of them of
(i) a certificate signed by an authorized officer of the Pass Through Trustee,
dated the Restatement Date, certifying that the representations and warranties
contained herein and in the Pass Through Trust Agreements of the Pass Through
Trustee are correct as of the Restatement Date, except to the extent that such
representations and warranties relate solely to an earlier date (in which case
such representations and warranties are correct on and as of such earlier date),
(ii) an opinion addressed to each of them of Shipman & Goodwin LLP, special
counsel for the Pass Through Trustee, in form and substance satisfactory to each
of them, and (iii) such other documents and evidence with respect to the Pass
Through Trustee as it may reasonably request in order to establish the due
consummation of the transactions contemplated by this Agreement, the taking of
all necessary action in connection therewith and compliance with the conditions
herein set forth.

                  SECTION 5. Amendment and Restatement of the Original
Indenture. Subject to the satisfaction or waiver of the conditions precedent set
forth herein, the Owner Participant, by execution and delivery hereof, requests,
authorizes and directs the Owner Trustee to execute and deliver the First
Amended and Restated Indenture, and the Owner Trustee and the Indenture Trustee,
by execution and delivery hereof, agree to execute and deliver the First Amended
and Restated Indenture. Each of the Original Head Lessee, the Parent Guarantor
and the Lessee, by execution and delivery hereof, consent to such execution and
delivery of the First Amended and Restated Indenture. The First


                                     - 18 -
   22
Amended and Restated Indenture shall be effective as of the Restatement Date.

                  SECTION 6. Amendment and Restatement of the Original Lease.
Subject to the satisfaction or waiver of the conditions precedent set forth
herein, the Indenture Trustee, the Pass Through Trustee, the Parent Guarantor
and the Owner Participant, by execution and delivery hereof, consent to the
assignments, delegations, and releases set forth in, and to the amendment and
restatement of the Original Lease effected by, and the Owner Participant
requests and instructs the Owner Trustee to execute and deliver, Lease Amendment
No. 1, and the Owner Trustee, the Original Head Lessee, the Indenture Trustee
and the Sublessee agree, by execution and delivery hereof, to execute and
deliver Lease Amendment No. 1. The Amended and Restated Lease shall be effective
as of the Restatement Date.

                  SECTION 7. Termination of the Participation Agreement;
Termination of Sublease, etc. Subject to the satisfaction or waiver of the
conditions precedent set forth herein, the Owner Participant, the Owner Trustee,
the Original Head Lessee, the Parent Guarantor and the Indenture Trustee, by
execution and delivery hereof, agree that, with effect from and including the
Restatement Date and except as otherwise provided in Section 15 hereof, the
Participation Agreement shall terminate and forever be without force and effect,
conferring no rights and imposing no obligations on the parties thereto. Upon
the execution and delivery of Lease Amendment No. 1 by each of the parties
thereto, the Sublease and the Assignment of Sublease shall be terminated as and
to the extent set forth herein and therein. Lease Amendment No. 1 shall be
effective as of the Restatement Date.

                  SECTION 8. Representations and Warranties of the Lessee. The
Lessee represents and warrants, as of the Restatement Date, to the Original Head
Lessee (except as to the representation and warranty contained in Section 8(i)),
the Parent Guarantor (except as to the representation and warranty contained in
Section 8(i)), the Pass Through Trustee, the Owner Participant, the Owner
Trustee, the Liquidity Provider and the Indenture Trustee that:

                  (a) the Lessee is a corporation duly organized, validly
         existing and in good standing under the laws of the State of Delaware,
         has the corporate power and authority to own or hold under lease its
         properties, has, or had on the respective dates of execution thereof,
         the corporate power and authority to enter into and perform its
         obligations under this Agreement, Lease Amendment No. 1, the Lease, the
         Pass Through Trust Agreements, the Amended and Restated Sublease TIA,
         the SLV Letter Agreement and any certificate delivered by the Lessee
         pursuant to the foregoing (the


                                     - 19 -
   23
         "Lessee Documents") and is duly qualified to do business as a foreign
         corporation in each jurisdiction where the failure to so qualify would
         have a material adverse effect on its business, operations or condition
         (financial or otherwise), or on its ability to perform its obligations
         under the Lessee Documents;

                  (b) the Lessee is a Certificated Air Carrier, and its chief
         executive office (as such term is used in Article 9 of the Uniform
         Commercial Code in effect in the State of Arizona) is located at 4000
         East Sky Harbor Boulevard, Phoenix, Arizona 85034;

                  (c) the execution and delivery by the Lessee of the Lessee
         Documents and the performance of the obligations of the Lessee under
         the Lessee Documents have been duly authorized by all necessary
         corporate action on the part of the Lessee, do not require any
         stockholder approval, or approval or consent of any trustee or holder
         of any material indebtedness or material obligations of the Lessee,
         except such as have been duly obtained and are in full force and
         effect, and do not contravene any law, governmental rule, regulation,
         judgment or order binding on the Lessee or the certificate of
         incorporation or by-laws of the Lessee, or contravene the provisions
         of, or constitute a default under, or result in the creation of any
         Lien (other than Permitted Liens) upon the property of the Lessee
         under, any indenture, mortgage, contract, lease or other agreement in
         each case having payment obligations in excess of $500,000 to which the
         Lessee is a party or by which it may be bound or affected;

                  (d) neither the execution and delivery by the Lessee of the
         Lessee Documents nor the performance of the obligations of the Lessee
         under the Lessee Documents nor the consummation by the Lessee of any of
         the transactions contemplated by the Lessee Documents, requires the
         consent or approval of, the giving of notice to, the registration with,
         or the taking of any other action in respect of, the Department of
         Transportation, the FAA, or any other federal, state, local or foreign
         governmental authority having jurisdiction, other than those which have
         already been received and which the Lessee is in compliance with and
         (i) the registration of the Certificates under the Securities Act of
         1933, as amended (the "Securities Act") and the securities laws of any
         state in which the Certificates may be offered for sale if the laws of
         such state require such action, (ii) the qualification of the Pass
         Through Trust Agreements under the Trust Indenture Act of 1939, as
         amended, (iii) (A) the orders, permits, waivers, exemptions,
         authorizations and approvals of the regulatory authorities


                                     - 20 -
   24
         having jurisdiction with respect to the Engine required to be obtained
         on or prior to the Restatement Date, which orders, permits, waivers,
         exemptions, authorizations and approvals have been duly obtained and
         are, or will on the Restatement Date be in full force and effect and
         (B) such consents, approvals, notices, registrations and other actions
         required by the terms of the Lessee Documents to the extent required to
         be given or obtained only after the Restatement Date and (iv) the
         registrations and filings referred to in Section 8(i);

                  (e) each Lessee Document has been duly executed and delivered
         by the Lessee and, assuming the due authorization, execution and
         delivery thereof by the other parties thereto, each Lessee Document
         constitutes, or when executed will constitute, the legal, valid and
         binding obligations of the Lessee enforceable against the Lessee in
         accordance with their respective terms, except as the same may be
         limited by applicable bankruptcy, insolvency, reorganization,
         moratorium or similar laws affecting the rights of creditors or lessors
         generally and by general principles of equity, whether considered in a
         proceeding at law or in equity, and except, in the case of the Lease,
         as may be limited by applicable laws which may affect the remedies
         provided in the Lease, which laws, however, do not make the remedies
         provided in the Lease inadequate for the practical realization of the
         benefits intended to be afforded thereby;

                  (f) except as disclosed in the Prospectus, there are no
         pending or, to its knowledge, threatened actions or proceedings before
         any court or administrative agency or regulatory commission or other
         governmental agency against or affecting the Lessee that are reasonably
         expected to materially adversely affect the ability of Lessee to enter
         into or perform its obligations under the Lessee Documents;

                  (g) the Lessee is not an "investment company" or a company
         controlled by an "investment company" within the meaning of the
         Investment Company Act of 1940, as amended;

                  (h) on the Restatement Date, the Trust Estate shall be free
         and clear of any and all Liens (other than Permitted Liens) created by
         or through the Lessee;

                  (i) except for the filing for recordation pursuant to the
         Federal Aviation Act (with confidential financial terms redacted) of
         Lease Amendment No. 1, the Amended and Restated Lease, Lease Supplement
         No. 2, Trust Supplement No. 2, the First Amended and Restated Indenture
         and Indenture Supplement No. 2, and each of the other documents
         referred to in Annex A hereto, all with the FAA, the filing of a


                                     - 21 -
   25
         Uniform Commercial Code ("UCC") amended financing statement with the
         Secretary of State of the State of Delaware with regard to the Original
         Lease, the filing of UCC termination statements with regard to the
         Original Head Lessee with the Secretary of State of the States of New
         York, Connecticut and Arizona, the filing of a protective UCC financing
         statement with the Secretary of State of the State of Arizona with
         respect to the Lease, the filing of a UCC termination statement with
         the Secretary of State of the State of Arizona with respect to the
         Sublease, and the filing of a UCC termination statement with the
         Secretary of State of the State of Delaware with respect to the Initial
         Sublease Assignment (as defined in the Original Lease) all of which
         financing and termination statements shall have been duly effected as
         of the Restatement Date (and assignments thereof and continuation
         statements at periodic intervals), and other than the taking of
         possession by the Indenture Trustee of the original counterparts of the
         Original Lease, Lease Amendment No. 1, the Amended and Restated Lease,
         and all Lease Supplements thereto (to the extent the Lease constitutes
         chattel paper), and the placing of the Lease identification required by
         Section 6(e) of the Lease, no further filing or recording of the Lease
         or of any other document (including any financing statement under
         Article 9 of the UCC of the State of Delaware, New York or Arizona) and
         no further action is necessary, under the laws of the United States of
         America or the States of Delaware, New York and Arizona in order to
         perfect the Owner Trustee's interest in the Engine as against the
         Lessee and any third parties, or to perfect the security interest in
         favor of the Indenture Trustee in the Owner Trustee's interest in the
         Engine and in the Lease;

                  (j) all obligations of the Lessee owing to the Lessor in
         connection with the Lease are at least pari passu with all unsecured
         and unsubordinated debt obligations of the Lessee;

                  (k) no event has occurred and is continuing which constitutes
         a Lease Event of Default or would constitute a Lease Event of Default
         but for the requirement that notice be given or time lapse or both;

                  (l) no event has occurred and is continuing which constitutes
         an Event of Loss (as defined in the Lease) or would constitute an Event
         of Loss with the lapse of time;

                  (m) the Lessee has filed or will file, or has caused or will
         cause to be filed, all federal and state tax returns which are required
         to be filed and has paid or will pay or has caused or will cause to be
         paid all taxes shown to be


                                     - 22 -
   26
         due or payable on said returns and on any assessment received by the
         Lessee, to the extent such taxes have become due and payable, except
         for taxes and returns with respect thereto the nonpayment or nonfiling
         of which, either in any case or in the aggregate, could have no
         material adverse effect on the Lessee, its condition (financial or
         otherwise), business, operations or prospects, or on its ability to
         perform its obligations under the Lease or which are being diligently
         contested by the Lessee in good faith by appropriate proceedings and
         with appropriate reserves;

                  (n) the financial statements together with the notes related
         thereto contained in the Registration Statement are complete in all
         material respects and fairly present the Lessee's financial condition
         as of September 30, 1996 and the results of its operations for the
         period covered in conformance with GAAP (except as otherwise noted
         therein and with which any such change the independent auditors of the
         Lessee have agreed), since September 30, 1996, there has been no
         material adverse change in the Lessee's business, operations, condition
         (financial or otherwise) or prospects which has not been disclosed in
         writing to the Owner Participant and the Indenture Trustee and does not
         contain any untrue statement of a material fact or omit to state a
         material fact necessary to make the statements therein not misleading;

                  (o) on the Restatement Date, all sales, use, documentary,
         duties or other similar Taxes then due and for which the Lessee is
         responsible pursuant to the Lessee Documents, shall have been paid,
         other than such Taxes which are being contested by the Lessee in good
         faith and by appropriate proceedings (and for which the Lessee shall
         have established such reserves as are required under GAAP) so long as
         such proceedings or the non-payment of such Taxes do not involve any
         material danger to the sale, forfeiture or loss of the Engine;

                  (p) the Lessee is not a "national" of any designated foreign
         country within the meaning of the Foreign Assets Control Regulations or
         the Cuban Assets Control Regulations of the United States Treasury
         Department, 31 Code of Federal Regulations, Subtitle B, Chapter V, as
         amended, or of any regulations, interpretations or rulings issued
         thereunder, and the Lessee is not, and is not acting on behalf of or
         for the benefit of, an "Iranian Entity" within the meaning of the
         Iranian Assets Control Regulations of the United States Treasury
         Department, 31 Code of Federal Regulations, Subtitle B, Chapter V, as
         amended, and the transactions contemplated by this Agreement are not
         prohibited by Executive Order 12170, the above-mentioned Iranian Assets


                                     - 23 -
   27
         Control Regulations or any regulations, interpretations or
         rulings issued under any thereof;

                  (q) no part of the Rent or other payments made by the Lessee
         under the Lease or under the other Operative Documents will be made out
         of the assets of any "employee benefit plan" as defined in Section 3(3)
         of ERISA;

                  (r) no representation or warranty of the Lessee contained in
         any Lessee Document or other information in writing furnished to the
         Owner Participant or the Indenture Trustee by the Lessee in connection
         herewith contains any untrue statement of a material fact or omits to
         state a material fact necessary in order to make the statements
         contained herein or therein not misleading. There is no fact known to
         the Lessee (other than matters of a general economic nature) which the
         Lessee has not disclosed in writing to the Owner Participant or the
         Indenture Trustee which could impair its ability to perform its
         obligations under the Lessee Documents; and

                  (s) if the Lessee were to become a debtor under the Bankruptcy
         Code, the Lessor as lessor of the Engine under the Lease, and the
         Indenture Trustee, as assignee of the Owner Trustee's rights under the
         Lease pursuant to the Indenture, would be entitled to the benefits of
         Section 1110 of the Bankruptcy Code with respect to the Engine.

                  SECTION 9. Representations and Warranties. Each of the parties
below represents and warrants, as of the Restatement Date, to each of the other
parties to this Agreement and to the Liquidity Provider (except that the
representation and warranty set forth in Section 9(f)(8) shall be a
representation and warranty of the Original Head Lessee to the Lessee only) as
follows:

                  (a) The Indenture Trustee in its individual capacity (and as
         Indenture Trustee to the extent provided in clause (6) below)
         represents and warrants that:

                           (1) the Indenture Trustee is a banking association
                  duly organized, validly existing and in good standing under
                  the federal laws of the United States of America, and has the
                  full corporate power, authority and legal right under the laws
                  of the State of Connecticut and the federal laws of the United
                  States pertaining to its banking, trust and fiduciary powers
                  to execute and deliver each of this Agreement, the Indenture
                  and each other Operative Document to which it is a party and
                  to carry out its obligations under this


                                     - 24 -
   28
                  Agreement, the Indenture and each other Operative
                  Document to which it is a party;

                           (2) neither the execution and delivery by the
                  Indenture Trustee of this Agreement, the Indenture, Lease
                  Amendment No. 1 and each other Operative Document to which it
                  is a party, nor the consummation by it of any of the
                  transactions contemplated hereby or thereby, nor the
                  compliance by it with any of the terms and provisions hereof
                  and thereof, (A) requires or will require any approval of its
                  stockholders, or approval or consent of any trustees or
                  holders of any indebtedness or obligations of it, or (B)
                  violates or will violate its articles of association or
                  by-laws, or contravenes or will contravene any provision of,
                  or constitutes or will constitute a default under, or results
                  or will result in any breach of, or results or will result in
                  the creation of any Lien (other than as permitted under the
                  Operative Documents) upon its property under, any indenture,
                  mortgage, chattel mortgage, deed of trust, conditional sale
                  contract, bank loan or credit agreement, license or other
                  agreement or instrument to which it is a party or by which it
                  is bound, or contravenes or will contravene any law,
                  governmental rule or regulation or any judgment or order
                  applicable to or binding on it of any United States
                  governmental authority or agency governing the trust powers of
                  the Indenture Trustee;

                           (3) this Agreement constitutes, and the Indenture,
                  when executed and delivered by the Indenture Trustee, will
                  constitute, the legal, valid and binding obligations of the
                  Indenture Trustee enforceable against it in accordance with
                  their respective terms, except as the same may be limited by
                  applicable bankruptcy, insolvency, reorganization, moratorium
                  or similar laws affecting the rights of creditors generally
                  and by general principles of equity, whether considered in a
                  proceeding at law or in equity;

                           (4) there are no pending or, to its knowledge,
                  threatened actions or proceedings against the Indenture
                  Trustee, either in its individual capacity or as Indenture
                  Trustee, before any court or administrative agency which, if
                  determined adversely to it, would materially adversely affect
                  the ability of the Indenture Trustee, in its individual
                  capacity or as Indenture Trustee, as the case may be, to
                  perform its obligations under the Operative Documents to which
                  it is a party;


                                     - 25 -
   29
                           (5) no consent, approval, order or authorization of,
                  giving of notice to, or registration with, or taking of any
                  other action in respect of, any State of Connecticut or any
                  United States of America governmental authority or agency
                  regulating the trust powers of the Indenture Trustee is
                  required for the execution and delivery of, or the carrying
                  out by, the Indenture Trustee of any of the transactions
                  contemplated hereby or by the Indenture, Lease Amendment No. 1
                  or any other Operative Document to which it is a party or by
                  which it is bound, other than any such consent, approval,
                  order, authorization, registration, notice or action as has
                  been duly obtained, given or taken;

                           (6) there are no Lenders' Liens (as defined in the
                  Lease) on the Engine or any portion of the Trust Estate
                  created by or through the Indenture Trustee in its individual
                  capacity; and

                           (7) it has possession of the chattel paper original
                  counterpart of the Original Lease, Lease Amendment No. 1 and
                  the Lease.

                  (b) Each of the Trust Company (except with respect to clauses
         (2)(ii), (3), (6) and (8) below, which representations and warranties
         are made solely by the Owner Trustee) and the Owner Trustee represents
         and warrants that:

                           (1) the Trust Company is a banking corporation duly
                  organized, validly existing and in good standing under the
                  laws of the State of Delaware, has full corporate power and
                  authority to carry on its business as now conducted, has, or
                  had on the respective dates of execution thereof, the
                  corporate power and authority to execute and deliver Trust
                  Supplement No. 2, has the corporate power and authority to
                  carry out the terms of the Trust Agreement, and each of the
                  Trust Company and the Owner Trustee has, or had on the
                  respective dates of execution thereof (assuming the
                  authorization, execution and delivery of Trust Supplement No.
                  2 by the Owner Participant), the corporate power and authority
                  to execute and deliver and to carry out the terms of this
                  Agreement, the Indenture, the Equipment Notes, Lease Amendment
                  No. 1, the Lease and each other Operative Document (other than
                  the Trust Agreement) to which it is a party;

                           (2) (i) each of the Trust Company and the Owner
                  Trustee has duly authorized, executed and delivered the Trust
                  Agreement and this Agreement and (assuming the


                                     - 26 -
   30
                  due authorization, execution and delivery of Trust Supplement
                  No. 2 by the Owner Participant) the Trust Agreement
                  constitutes a legal, valid and binding obligation of the Owner
                  Trustee, in its individual capacity or as Owner Trustee and
                  the Trust Company, as the case may be, enforceable against it
                  in accordance with its terms, except as the same may be
                  limited by applicable bankruptcy, insolvency, reorganization,
                  moratorium or similar laws affecting the rights of creditors
                  generally and by general principles of equity, whether
                  considered in a proceeding at law or in equity, (ii) the Owner
                  Trustee has duly authorized, executed and delivered this
                  Agreement and (assuming the due authorization, execution and
                  delivery of Trust Supplement No. 2 by the Owner Participant)
                  this Agreement and the Trust Agreement constitute, and the
                  Indenture and the Lease, when entered into, will constitute, a
                  legal, valid and binding obligation of the Owner Trustee, in
                  its individual capacity or as Owner Trustee and the Trust
                  Company, as the case may be, enforceable against it in
                  accordance with its terms, except as the same may be limited
                  by applicable bankruptcy, insolvency, reorganization,
                  moratorium or similar laws affecting the rights of creditors
                  generally and by general principles of equity, whether
                  considered in a proceeding at law or in equity;

                           (3) assuming the due authorization, execution and
                  delivery of Trust Supplement No. 2 by the Owner Participant,
                  the Owner Trustee has duly authorized, and on the Restatement
                  Date shall have duly issued, executed and delivered to the
                  Indenture Trustee for authentication, the Equipment Notes
                  pursuant to the terms and provisions hereof and of the
                  Indenture, and each Equipment Note on the Restatement Date
                  will constitute the valid and binding obligation of the Owner
                  Trustee and will be entitled to the benefits and security
                  afforded by the Indenture in accordance with the terms of such
                  Equipment Note and the Indenture;

                           (4) neither the execution and delivery by the Owner
                  Trustee or the Trust Company, as the case may be, of this
                  Agreement, the Original Trust Agreement, Trust Supplement No.
                  2, the Original Indenture, the Indenture, the Original Lease,
                  Lease Amendment No. 1, the Lease, the Equipment Notes, or any
                  other Operative Document to which it is a party, nor the
                  consummation by it of any of the transactions contemplated
                  hereby or thereby, nor the compliance by it with any of the
                  terms and provisions hereof and thereof, (A) requires or will
                  require any approval of its stockholders, or approval


                                     - 27 -
   31
                  or consent of any trustees or holders of any indebtedness or
                  obligations of it, or (B) violates or will violate its
                  articles of association or by-laws, or contravenes or will
                  contravene any provision of, or constitutes or will constitute
                  a default under, or results or will result in any breach of,
                  or results or will result in the creation of any Lien (other
                  than as permitted under the Operative Documents) upon its
                  property under, any indenture, mortgage, chattel mortgage,
                  deed of trust, conditional sale contract, bank loan or credit
                  agreement, license or other agreement or instrument to which
                  it is a party or by which it is bound, or contravenes or will
                  contravene any law, governmental rule or regulation of the
                  State of Delaware or any United States governmental authority
                  or agency governing the trust powers of the Owner Trustee, or
                  any judgment or order applicable to or binding on it;

                           (5) no consent, approval, order or authorization of,
                  giving of notice to, or registration with, or taking of any
                  other action in respect of, any state or local governmental
                  authority or agency or any State of Delaware or any United
                  States of America governmental authority or agency regulating
                  the trust powers of the Trust Company is required for the
                  execution and delivery of, or the carrying out by, the Trust
                  Company or the Owner Trustee, as the case may be, of any of
                  the transactions contemplated hereby or by the Trust
                  Agreement, the Indenture, the Lease, Lease Amendment No. 1,
                  the Equipment Notes or any other Operative Document to which
                  it is a party or by which it is bound, other than any such
                  consent, approval, order, authorization, registration, notice
                  or action as has been duly obtained, given or taken or which
                  is described in Section 8(d);

                           (6) there exists no Lessor's Lien or Head Lessor's
                  Lien (each as defined in the Lease) (including for this
                  purpose Liens that would be Lessor's Liens but for the first
                  proviso in the definition of Lessor's Liens) attributable to
                  the Owner Trustee;

                           (7) there exists no Lessor's Lien or Head Lessor's
                  Lien (including for this purpose Liens that would be Lessor's
                  Liens but for the first proviso in the definition of Lessor's
                  Liens) attributable to the Trust Company;

                           (8)  there are no Taxes payable by the Owner
                  Trustee or the Trust Company imposed by the State of


                                     - 28 -
   32
                  Delaware or any political subdivision thereof in connection
                  with the prepayment of the Original Certificates or the
                  issuance of the Equipment Notes, or the execution and delivery
                  by it of any of the instruments referred to in clauses (1),
                  (2), (3) and (4) above, that, in each case, would not have
                  been imposed if the Trust Estate were not located in the State
                  of Delaware and the Trust Company had not (a) had its
                  principal place of business in, (b) performed (in its
                  individual capacity or as Owner Trustee) any or all of its
                  duties under the Operative Documents in, and (c) engaged in
                  any activities unrelated to the transactions contemplated by
                  the Operative Documents in, the State of Delaware;

                           (9) there are no pending or, to its knowledge,
                  threatened actions or proceedings against the Owner Trustee,
                  either in its individual capacity or as Owner Trustee, before
                  any court or administrative agency which, if determined
                  adversely to it, would materially adversely affect the ability
                  of the Owner Trustee, in its individual capacity or as Owner
                  Trustee, as the case may be, to perform its obligations under
                  any of the instruments referred to in clauses (1), (2), (3)
                  and (4) above; and

                      (10) both its chief executive office, and the place where
                  its records concerning the Engine and all its interests in, to
                  and under all documents relating to the Trust Estate (other
                  than such as may be maintained and held by the Indenture
                  Trustee pursuant to the Indenture), are located in Wilmington,
                  Delaware. Owner Trustee, in its individual capacity or as
                  Owner Trustee, agrees that it will not change the location of
                  such office to a location outside of Delaware, without prior
                  written notice to all parties hereto.

                  (c)  The Owner Participant represents and warrants
         that:

                           (1) it is duly incorporated, validly existing and in
                  good standing under the laws of the jurisdiction of its
                  incorporation, has the corporate power and authority to carry
                  on its present business and operations and to own or lease its
                  properties, has, or had on the respective dates of execution
                  thereof, as the case may be, the corporate power and authority
                  to enter into and to perform its obligations under this
                  Agreement, the Trust Agreement, the SLV Letter Agreement and
                  the Amended and Restated Head Lease TIA; this Agreement, the
                  SLV Letter Agreement and Trust


                                     - 29 -
   33
                  Supplement No. 2 have been duly authorized, executed and
                  delivered by it; and, assuming the due authorization,
                  execution and delivery hereof and thereof by the other parties
                  hereto and thereto, this Agreement, the Trust Agreement, the
                  SLV Letter Agreement and the Amended and Restated Head Lease
                  TIA constitute the legal, valid and binding obligations of the
                  Owner Participant enforceable against it in accordance with
                  their respective terms, except as such enforceability may be
                  limited by bankruptcy, insolvency, reorganization, moratorium
                  or other similar laws affecting the rights of creditors
                  generally and by general principles of equity, whether
                  considered in a proceeding at law or in equity;

                           (2) neither (A) the execution and delivery by the
                  Owner Participant of this Agreement, the Trust Agreement, the
                  SLV Letter Agreement, the Amended and Restated Head Lease TIA
                  or any other Operative Document to which it is a party nor (B)
                  compliance by it with all of the provisions hereof or thereof,
                  (x) will contravene any law or order of any court or
                  governmental authority or agency applicable to or binding on
                  the Owner Participant (it being understood that no
                  representation or warranty is made with respect to laws, rules
                  or regulations relating to aviation or to the nature of the
                  equipment owned by the Owner Trustee), or (y) will contravene
                  the provisions of, or constitutes or has constituted or will
                  constitute a default under, its certificate of incorporation
                  or by-laws or any indenture, mortgage, contract or other
                  agreement or instrument to which the Owner Participant is a
                  party or by which it or any of its property may be bound or
                  affected, except where such contravention or default would not
                  result in any liability to any other party hereto or have a
                  material adverse effect on the rights or on the remedies of
                  the other parties hereto or on its ability to perform its
                  obligations hereunder or thereunder;

                           (3) no authorization or approval or other action by,
                  and no notice to or filing with, any governmental authority or
                  regulatory body (other than as required by the Federal
                  Aviation Act or the regulations promulgated thereunder) is or
                  was required, as the case may be, for the due execution,
                  delivery or performance by it of this Agreement, the Trust
                  Agreement and the Amended and Restated Head Lease TIA (it
                  being understood that no representation or warranty is made
                  with respect to laws, rules or regulations relating to
                  aviation or to the nature of the equipment owned by the Owner
                  Trustee


                                     - 30 -
   34
                  other than the laws, rules or regulations relating to
                  engine lease transactions generally);

                           (4) there are no pending or, to its knowledge,
                  threatened actions or proceedings against the Owner
                  Participant before any court or administrative agency or
                  arbitrator which, if determined adversely to the Owner
                  Participant, would materially adversely affect the Owner
                  Participant's ability to perform its obligations under this
                  Agreement, the Trust Agreement, the SLV Letter Agreement or
                  the Amended and Restated Head Lease TIA; and

                           (5) on the Restatement Date, the Trust Estate shall
                  be free of Lessor's Liens and Head Lessor's Liens attributable
                  to the Owner Participant (including for this purpose Liens
                  that would be Lessor's Liens but for the first proviso in the
                  definition of Lessor's Liens).

                  (d)  The Pass Through Trustee represents, warrants and
         covenants that:

                           (1) the Pass Through Trustee is duly organized,
                  validly existing and in good standing under the federal laws
                  of the United States of America, and has the full corporate
                  power, authority and legal right under the federal laws of the
                  United States of America pertaining to its banking, trust and
                  fiduciary powers to execute and deliver each of the Pass
                  Through Trust Agreements, the Intercreditor Agreement, and
                  this Agreement and to perform its obligations under this
                  Agreement, the Pass Through Trust Agreements and the
                  Intercreditor Agreement;

                           (2) this Agreement has been, and when executed and
                  delivered by the Pass Through Trustee, each of the Pass
                  Through Trust Agreements and the Intercreditor Agreement will
                  have been, duly authorized, executed and delivered by the Pass
                  Through Trustee; this Agreement constitutes, and when executed
                  and delivered by the Pass Through Trustee, each of the Pass
                  Through Trust Agreements and the Intercreditor Agreement, will
                  constitute, the legal, valid and binding obligations of the
                  Pass Through Trustee enforceable against it in accordance with
                  their respective terms, except as the same may be limited by
                  applicable bankruptcy, insolvency, reorganization, moratorium
                  or similar laws affecting the rights of creditors generally
                  and by general principles of equity, whether considered in a
                  proceeding at law or in equity;


                                     - 31 -
   35
                           (3) none of the execution, delivery and performance
                  by the Pass Through Trustee of any of the Pass Through Trust
                  Agreements, the Intercreditor Agreement or this Agreement, the
                  purchase by the Pass Through Trustee of the Equipment Notes
                  pursuant to this Agreement, or the issuance of the
                  Certificates pursuant to the Pass Through Trust Agreements,
                  contravenes any law, rule or regulation of the State of
                  Connecticut or any United States governmental authority or
                  agency regulating the Pass Through Trustee's banking, trust or
                  fiduciary powers or any judgment or order applicable to or
                  binding on the Pass Through Trustee and does not contravene or
                  result in any breach of, or constitute a default under, the
                  Pass Through Trustee's articles of association or by-laws or
                  any agreement or instrument to which the Pass Through Trustee
                  is a party or by which it or any of its properties may be
                  bound;

                           (4) neither the execution and delivery by the Pass
                  Through Trustee of any of the Pass Through Trust Agreements,
                  the Intercreditor Agreement or this Agreement, nor the
                  consummation by the Pass Through Trustee of any of the
                  transactions contemplated hereby or thereby, requires the
                  consent or approval of, the giving of notice to, the
                  registration with, or the taking of any other action with
                  respect to, any State of Connecticut governmental authority or
                  agency or any federal governmental authority or agency
                  regulating the Pass Through Trustee's banking, trust or
                  fiduciary powers;

                           (5) assuming that the trusts created by the Pass
                  Through Trust Agreements will not be taxable as corporations,
                  but, rather, each will be characterized as a grantor trust
                  under subpart E, Part I of Subchapter J of the Code for
                  federal income tax purposes, there are no Taxes payable by the
                  Pass Through Trustee imposed by the State of Connecticut or
                  any political subdivision or taxing authority thereof in
                  connection with the acquisition, possession or ownership by
                  the Pass Through Trustee of any of the Equipment Notes (other
                  than franchise or other taxes based on or measured by any fees
                  or compensation received by the Pass Through Trustee for
                  services rendered in connection with the transactions
                  contemplated by any of the Pass Through Trust Agreements), and
                  prior to the exercise of remedies upon the occurrence of an
                  Indenture Event of Default, there are no Taxes payable by the
                  Pass Through Trustee imposed by the State of Connecticut or
                  any political subdivision or taxing authority thereof in
                  connection


                                     - 32 -
   36
                  with the execution, delivery and performance by the Pass
                  Through Trustee of this Agreement, any of the Pass Through
                  Trust Agreements or the Intercreditor Agreement (other than
                  franchise or other Taxes based on or measured by any fees or
                  compensation received by the Pass Through Trustee for services
                  rendered in connection with the transactions contemplated by
                  any of the Pass Through Trust Agreements), and such trusts
                  will not be subject to any Taxes imposed by the State of
                  Connecticut or any political subdivision or taxing authority
                  thereof; upon the exercise of remedies following the
                  occurrence of an Indenture Event of Default, there will be no
                  Taxes payable by the Pass Through Trustee imposed by the State
                  of Connecticut or any political subdivision or taxing
                  authority thereof in connection with the execution, delivery
                  and performance by the Pass Through Trustee of this Agreement,
                  any of the Pass Through Trust Agreements or the Intercreditor
                  Agreement (other than franchise or other Taxes based on or
                  measured by any fees or compensation received by the Pass
                  Through Trustee for services rendered in connection with the
                  transactions contemplated by any of the Pass Through Trust
                  Agreements), and the trusts created by the Pass Through Trust
                  Agreements will not be subject to any Taxes imposed by the
                  State of Connecticut or any political subdivision thereof,
                  solely because the Pass Through Trustee maintains an office
                  in, and administers the trusts created by the Pass Through
                  Trust Agreements in, the State of Connecticut;

                           (6) there are no pending or threatened actions or
                  proceedings against the Pass Through Trustee before any court
                  or administrative agency which individually or in the
                  aggregate, if determined adversely to it, would materially
                  adversely affect the ability of the Pass Through Trustee to
                  perform its obligations under this Agreement, the
                  Intercreditor Agreement or any Pass Through Trust Agreement;

                           (7) except for the issue and sale of the Certificates
                  contemplated hereby, the Pass Through Trustee has not directly
                  or indirectly offered any Equipment Notes for sale to any
                  Person or solicited any offer to acquire any Equipment Notes
                  from any Person, nor has the Pass Through Trustee authorized
                  anyone to act on its behalf to offer directly or indirectly
                  any Equipment Notes for sale to any Person, or to solicit any
                  offer to acquire any Equipment Notes from any Person; and the
                  Pass Through Trustee is not in default under any Pass Through
                  Trust Agreement; and


                                     - 33 -
   37
                           (8) the Pass Through Trustee is not directly or
                  indirectly controlling, controlled by or under common control
                  with the Owner Participant, the Owner Trustee, the
                  Underwriters or the Lessee.

                  (e)  The Subordination Agent represents and warrants
         that:

                           (1) the Subordination Agent is a duly organized
                  national banking association, validly existing and in good
                  standing with the Comptroller of the Currency under the laws
                  of the United States of America and has the full corporate
                  power, authority and legal right under the laws of the United
                  States of America pertaining to its banking, trust and
                  fiduciary powers to execute and deliver each of the Liquidity
                  Facilities, the Intercreditor Agreement and this Agreement and
                  to perform its obligations under this Agreement, the Liquidity
                  Facilities and the Intercreditor Agreement;

                           (2) this Agreement has been, and when executed and
                  delivered by the Subordination Agent, each of the Liquidity
                  Facilities and the Intercreditor Agreement will have been,
                  duly authorized, executed and delivered by the Subordination
                  Agent; this Agreement constitutes, and when executed and
                  delivered by the Subordination Agent, each of the Liquidity
                  Facilities and the Intercreditor Agreement, will constitute,
                  the legal, valid and binding obligations of the Subordination
                  Agent enforceable against it in accordance with their
                  respective terms, except as the same may be limited by
                  applicable bankruptcy, insolvency, reorganization, moratorium
                  or similar laws affecting the rights of creditors generally
                  and by general principles of equity, whether considered in a
                  proceeding at law or in equity;

                           (3) none of the execution, delivery and performance
                  by the Subordination Agent of each of the Liquidity
                  Facilities, the Intercreditor Agreement and this Agreement or
                  the performance by the Subordination Agent of this Agreement,
                  contravenes any law, rule or regulation of the State of
                  Connecticut or any United States governmental authority or
                  agency regulating the Subordination Agent's banking, trust or
                  fiduciary powers or any judgment or order applicable to or
                  binding on the Subordination Agent and do not contravene or
                  result in any breach of, or constitute a default under, the
                  Subordination Agent's articles of association or by-laws or
                  any agreement or instrument


                                     - 34 -
   38
                  to which the Subordination Agent is a party or by which
                  it or any of its properties may be bound;

                           (4) neither the execution and delivery by the
                  Subordination Agent of any of the Liquidity Facilities, the
                  Intercreditor Agreement or this Agreement nor the consummation
                  by the Subordination Agent of any of the transactions
                  contemplated hereby or thereby requires the consent or
                  approval of, the giving of notice to, the registration with,
                  or the taking of any other action with respect to, any State
                  of Connecticut governmental authority or agency or any federal
                  governmental authority or agency regulating the Subordination
                  Agent's banking, trust or fiduciary powers;

                           (5) there are no Taxes payable by the Subordination
                  Agent imposed by the State of Connecticut or any political
                  subdivision or taxing authority thereof in connection with the
                  execution, delivery and performance by the Subordination Agent
                  of this Agreement, any of the Liquidity Facilities or the
                  Intercreditor Agreement (other than franchise or other taxes
                  based on or measured by any fees or compensation received by
                  the Subordination Agent for services rendered in connection
                  with the transactions contemplated by the Intercreditor
                  Agreement or any of the Liquidity Facilities) solely because
                  the Subordination Agent maintains an office and administers
                  its trust business in the State of Connecticut, and there are
                  no Taxes payable by the Subordination Agent imposed by the
                  State of Connecticut or any political subdivision thereof in
                  connection with the acquisition, possession or ownership by
                  the Subordination Agent of any of the Equipment Notes solely
                  because the Subordination Agent maintains an office and
                  administers its trust business in the State of Connecticut
                  (other than franchise or other taxes based on or measured by
                  any fees or compensation received by the Subordination Agent
                  for services rendered in connection with the transactions
                  contemplated by the Intercreditor Agreement or any of the
                  Liquidity Facilities);

                           (6) there are no pending or threatened actions or
                  proceedings against the Subordination Agent before any court
                  or administrative agency which individually or in the
                  aggregate, if determined adversely to it, would materially
                  adversely affect the ability of the Subordination Agent to
                  perform its obligations under this Agreement, the
                  Intercreditor Agreement or any Liquidity Facility;


                                     - 35 -
   39
                           (7) the Subordination Agent has not directly or
                  indirectly offered any Equipment Note for sale to any Person
                  or solicited any offer to acquire any Equipment Note from any
                  Person, nor has the Subordination Agent authorized anyone to
                  act on its behalf to offer directly or indirectly any
                  Equipment Note for sale to any Person, or to solicit any offer
                  to acquire any Equipment Note from any Person; and the
                  Subordination Agent is not in default under any Liquidity
                  Facility; and

                           (8) the Subordination Agent is not directly or
                  indirectly controlling, controlled by or under common control
                  with the Owner Participant, the Owner Trustee, the
                  Underwriters or the Lessee.

                  (f)  The Original Head Lessee represents and warrants
         that:

                           (1) it is duly incorporated, validly existing and in
                  good standing under the laws of the State of Connecticut and
                  has the corporate power and authority to carry on its present
                  business and operations and to own or lease its properties,
                  has the corporate power and authority to enter into and to
                  perform its obligations under this Agreement, Lease Amendment
                  No. 1, the Amended and Restated Head Lease TIA, the Amended
                  and Restated Sublease TIA and the SLV Letter Agreement
                  (collectively, the "Original Head Lessee Transaction
                  Documents"); each Original Head Lessee Transaction Document
                  has been duly authorized, and upon the execution and delivery
                  thereof will constitute, the legal, valid and binding
                  obligations of the Original Head Lessee enforceable against it
                  in accordance with their respective terms, except as such
                  enforceability may be limited by bankruptcy, insolvency,
                  reorganization, moratorium or other similar laws affecting the
                  rights of creditors generally and by general principles of
                  equity, whether considered in a proceeding at law or in
                  equity;

                           (2) neither (A) the execution and delivery by the
                  Original Head Lessee of this Agreement and each of the other
                  Original Head Lessee Transaction Documents nor (B) compliance
                  by it with all of the provisions hereof or thereof, (x) will
                  contravene any law or order of any court or governmental
                  authority or agency applicable to or binding on the Original
                  Head Lessee, or (y) will contravene the provisions of, or
                  constitutes or has constituted or will constitute a default
                  under, its certificate of incorporation or by-laws or any


                                     - 36 -
   40
                  indenture, mortgage, contract or other agreement or instrument
                  to which the Original Head Lessee is a party or by which it or
                  any of its property may be bound or affected, except where
                  such contravention or default would not result in any
                  liability to any other party hereto or have a material adverse
                  effect on the rights or on the remedies of the other parties
                  hereto or on its ability to perform its obligations hereunder
                  or thereunder;

                           (3) no authorization or approval or other action by,
                  and no notice to or filing with, any governmental authority or
                  regulatory body (other than as required by the Federal
                  Aviation Act or the regulations promulgated thereunder) is or
                  was required, as the case may be, for the due execution,
                  delivery or performance by the Original Head Lessee of this
                  Agreement and each of the other Original Head Lessee
                  Transaction Documents;

                           (4) except as set forth in the Parent Guarantor's
                  most recent Form 20-F filed with the Commission, there are no
                  pending or, to its knowledge, threatened actions or
                  proceedings against the Original Head Lessee before any court
                  or administrative agency or arbitrator which, if determined
                  adversely to the Original Head Lessee, would materially
                  adversely affect the Original Head Lessee's ability to perform
                  its obligations under this Agreement or any other Original
                  Head Lessee Transaction Documents;

                           (5) on the Restatement Date, the Trust Estate, the
                  Engine and each Part shall be free and clear of any and all
                  Sublessor's Liens (as defined in the Sublease);

                           (6) on the Delivery Date, the Owner Trustee received
                  good title to the Engine free and clear of all Liens, except
                  the rights of the Original Head Lessee under the Original
                  Lease, the rights of the Sublessee under the Sublease, the
                  Lien of the Original Indenture, the beneficial interest of the
                  Owner Participant in the Engine, and Permitted Liens under the
                  Original Lease;

                           (7) [Intentionally Omitted]; and

                           (8) except for the filing for recordation pursuant to
                  the Federal Aviation Act (with confidential financial terms
                  redacted) of Lease Amendment No. 1, the Amended and Restated
                  Lease, Lease Supplement No. 2, Trust Supplement No. 2, the
                  First Amended and Restated Indenture and Indenture Supplement
                  No. 2, and each of the other documents referred to in Annex A
                  hereto, all


                                     - 37 -
   41
                  with the FAA, the filing of a Uniform Commercial Code ("UCC")
                  amended financing statement with the Secretary of State of the
                  State of Delaware with regard to the Original Lease, the
                  filing of UCC termination statements with regard to the
                  Original Head Lessee with the Secretary of State of the States
                  of New York, Connecticut and Arizona, the filing of a
                  protective UCC financing statement with the Secretary of State
                  of the State of Arizona with respect to the Lease, the filing
                  of a UCC termination statement with the Secretary of State of
                  the State of Arizona with respect to the Sublease, and the
                  filing of a UCC termination statement with the Secretary of
                  State of the State of Delaware with respect to the Initial
                  Sublease Assignment (as defined in the Original Lease) all of
                  which financing and termination statements shall have been
                  duly effected as of the Restatement Date (and assignments
                  thereof and continuation statements at periodic intervals),
                  and other than the taking of possession by the Indenture
                  Trustee of the original counterparts of the Original Lease,
                  Lease Amendment No. 1, the Amended and Restated Lease, and all
                  Lease Supplements thereto (to the extent the Lease constitutes
                  chattel paper), and the placing of the Lease identification
                  required by Section 6(e) of the Lease, no further filing or
                  recording of the Lease or of any other document (including any
                  financing statement under Article 9 of the UCC of the State of
                  Delaware, New York or Arizona) and no further action is
                  necessary, under the laws of the United States of America or
                  the States of Delaware, New York and Arizona in order to
                  perfect the Owner Trustee's interest in the Engine as against
                  the Lessee and any third parties, or to perfect the security
                  interest in favor of the Indenture Trustee in the Owner
                  Trustee's interest in the Engine and in the Lease.

                  (g)  The Parent Guarantor represents and warrants that:

                           (1) it is duly organized and validly existing under
                  the laws of Ireland and has the corporate power and authority
                  to enter into and to perform its obligations under this
                  Agreement; this Agreement has been duly authorized and
                  constitutes the legal, valid and binding obligations of the
                  Parent Guarantor enforceable against it in accordance with its
                  terms, except as such enforceability may be limited by
                  bankruptcy, insolvency, reorganization, moratorium or other
                  similar laws affecting the rights of creditors generally and
                  by general principles of equity, whether considered in a
                  proceeding at law or in equity;


                                     - 38 -
   42
                           (2) neither (A) the execution and delivery by the
                  Parent Guarantor of this Agreement nor (B) compliance by it
                  with all of the provisions hereof (x) will contravene any law
                  or order of any court or governmental authority or agency
                  applicable to or binding on the Parent Guarantor, or (y) will
                  contravene the provisions of, or constitutes or has
                  constituted or will constitute a default under, its Memorandum
                  and Articles of Association or any indenture, mortgage,
                  contract or other agreement or instrument to which the Parent
                  Guarantor is a party or by which it or any of its property may
                  be bound or affected, except where such contravention or
                  default would not result in any liability to any other party
                  hereto or have a material adverse effect on the rights or on
                  the remedies of the other parties hereto or on its ability to
                  perform its obligations hereunder or thereunder;

                           (3) no authorization or approval or other action by,
                  and no notice to or filing with, any governmental authority or
                  regulatory body (other than as required by the Federal
                  Aviation Act or the regulations promulgated thereunder) is or
                  was required, as the case may be, for the due execution,
                  delivery or performance by the Parent Guarantor of this
                  Agreement;

                           (4) except as set forth in the Parent Guarantor's
                  most recent Form 20-F filed with the Commission, there are no
                  pending or, to its knowledge, threatened actions or
                  proceedings against the Parent Guarantor before any court or
                  administrative agency or arbitrator which, if determined
                  adversely to the Parent Guarantor, would materially adversely
                  affect the Parent Guarantor's ability to perform its
                  obligations under this Agreement;

                           (5) on the Restatement Date, the Trust Estate, the
                  Engine and each Part shall be free and clear of any and all
                  Sublessor's Liens (as defined in the Sublease); and

                           (6) The representations and warranties of the
                  Original Head Lessee contained in this Agreement are true and
                  correct in all respects on the date made (provided that the
                  representation and warranty with respect to Section 9(f)(8)
                  shall be only for the benefit of the Lessee).

                  SECTION 10.  Transfer of Owner Participant's Interest.
Owner Participant shall not directly or indirectly sell, assign,
convey or otherwise transfer (whether by operation of law, con-


                                     - 39 -
   43
solidation, merger, sale of assets or otherwise) any of its right, title or
interest in and to the Trust Estate, the Engine, the Lease, this Agreement, the
Trust Agreement, the Amended and Restated Head Lease TIA or any other Operative
Document or any proceeds therefrom or permit the transfer of any of its stock in
any transaction which has the practical effect of any of the foregoing; provided
that, and subject to the conditions set forth below, Owner Participant may
transfer to a Transferee (as defined below) all (but not less than all) of its
right (except for such rights accruing prior to transfer), title and interest as
an entirety in and to the Trust Estate, the Engine, this Agreement, the Trust
Agreement, the Amended and Restated Head Lease TIA and each other Operative
Document to which Owner Participant is a party or by which Owner Participant is
bound. Each such transfer shall be subject to the following conditions, and
Owner Participant agrees for the express benefit of each party hereto that any
such transfer will comply with such conditions:

                    (i) the Person to whom such transfer is to be made (a
         "Transferee") is either (A) a bank, trust company or other like
         regulated financial institution with a combined capital, surplus and
         undivided profits of, or a corporation with a tangible net worth of, in
         either case at least $60,000,000, (B) any wholly-owned subsidiary of
         such bank, trust company, financial institution or corporation if such
         bank, trust company, financial institution or corporation furnishes to
         Owner Trustee, Indenture Trustee, Original Head Lessee and Lessee an
         agreement or agreements of such bank, financial institution or
         corporation guaranteeing such subsidiary's obligations as Owner
         Participant contained in this Agreement, the Trust Agreement, the
         Amended and Restated Head Lease TIA and each other Operative Document
         to which Owner Participant is a party or by which it is bound, which
         guarantee shall be substantially in the form attached as Exhibit A
         hereto or (C) a subsidiary of Owner Participant if Owner Participant
         furnishes to Owner Trustee, Indenture Trustee, Original Head Lessee and
         Lessee an agreement whereby Owner Participant will guarantee such
         subsidiary's obligations as Owner Participant contained in this
         Agreement, the Trust Agreement, the Amended and Restated Head Lease TIA
         and each other Operative Document to which Owner Participant is a party
         or by which it is bound, which guarantee shall be substantially in the
         form attached as Exhibit A hereto;

                   (ii) Owner Trustee, Indenture Trustee, Original Head Lessee
         and Lessee shall have received at least 15 days' prior written notice
         of such transfer specifying the name and address of any proposed
         transferee and specifying the facts necessary to determine whether such
         proposed transferee qualifies as a "Transferee" under clause (i)
         above and


                                     - 40 -
   44
         does not violate clause (viii) below; provided that if such Transferee
         is a subsidiary of Owner Participant, such notice may be given promptly
         following rather than prior to such transfer if such Transferee meets
         the net worth requirement set forth above on its own account without a
         guaranty and otherwise meets the requirements of this Section 10;

                  (iii) [Intentionally Omitted];

                   (iv) such Transferee has the requisite power and authority
         and legal right to enter into and carry out the transactions
         contemplated hereby;

                    (v) such Transferee enters into an agreement in
         substantially the form attached as Exhibit B hereto whereby such
         Transferee confirms that it shall be deemed a party to this Agreement,
         the Trust Agreement, the Amended and Restated Head Lease TIA and each
         other Operative Document to which Owner Participant is a party or by
         which Owner Participant is bound, and in which the transferee shall
         agree to be bound by and undertake the obligations of Owner Participant
         in the Operative Documents and shall make representations and
         warranties comparable to those of Owner Participant contained herein;

                   (vi) such transfer does not violate any provision of the
         Federal Aviation Act or any rules or regulations promulgated
         thereunder, or create a relationship that would be in violation
         thereof, or violate any provisions of the Securities Act or any other
         applicable Federal, state or other law, rule or regulation;

                  (vii) such transfer does not violate any provision of
         ERISA or any rules or regulations thereunder;

                 (viii) such Transferee is not an airline, a commercial air
         carrier, an air freight forwarder, any Person engaged in the business
         of parcel transport by air or a subsidiary or an Affiliate of such an
         airline, a commercial air carrier, an air freight forwarder, Person
         engaged in the business of parcel transport by air or other similar
         Person;

                   (ix) an opinion of counsel of the Transferee confirming the
         matters referred to in clauses (iv) and (vi) above (with appropriate
         reliance on certificates of corporate officers or public officials as
         to matters of fact) and confirming that the agreement referred to in
         clause (v) above is the legal, valid, binding and enforceable
         obligation of the Transferee and that the guarantee referred to in
         clause (i)(B) or (C) above, if any, is the legal, valid, binding and
         enforceable obligation of the Transferee's


                                     - 41 -
   45
         guarantor shall be provided, at least 3 days prior to such transfer, to
         Lessee, Owner Trustee, Original Head Lessee and Indenture Trustee,
         which shall be in form and substance reasonably satisfactory to each of
         them; and

                    (x) the terms of the Operative Documents and the Amended and
         Restated Head Lease TIA shall not be altered.

Upon any such transfer, except as the context otherwise requires, such
Transferee shall be deemed "Owner Participant" for all purposes hereof and of
the Trust Agreement, the Amended and Restated Head Lease TIA and each other
Operative Document to which Owner Participant is a party or by which Owner
Participant is bound, and shall be deemed to have made the original
participation in the Engine previously made by Owner Participant; and except as
the context otherwise requires, each reference in this Agreement, the Trust
Agreement, the Amended and Restated Head Lease TIA and each other Operative
Document to "Owner Participant" shall thereafter be deemed to include such
Transferee as provided in this Section 10. No transfer shall release Owner
Participant from its obligations hereunder, under the Amended and Restated Head
Lease TIA and under the other Operative Documents, except to the extent
expressly assumed by the Transferee in accordance with this Section 10,
provided, that notwithstanding such an assumption, in no event shall Owner
Participant be released from its obligations hereunder or under any of the other
Operative Documents with respect to claims under this Agreement or under the
Amended and Restated Head Lease TIA by or against Owner Participant which have
accrued or been made prior to the date of such transfer. The transferor Owner
Participant shall pay the reasonable expenses of each party hereto related to
any such transfer.

                  Each party hereto agrees, upon the request of Owner
Participant, to use reasonable efforts to cooperate at no cost or expense to it
with Owner Participant in complying with its obligations under the provisions of
clause (A) of paragraph (6) of Section 9(c), provided that such cooperation
shall not be subject to the indemnity in Section 13 of the Lease.

                  SECTION 11.  [Reserved].

                  SECTION 12. Quiet Enjoyment. Each of the Trust Company, Owner
Trustee, Owner Participant (as to itself and as to Owner Trustee), Indenture
Trustee in its individual capacity and as Indenture Trustee and on behalf of the
Note Holders, the Pass Through Trustee and the Subordination Agent severally
covenants and agrees that during the Term, so long as no Lease Event of Default
shall have occurred and be continuing and the Lease shall not have been declared
or deemed in default, no action shall be taken or caused to be taken by it or a
Person lawfully claiming


                                     - 42 -
   46
by, through or on behalf of it to interfere with the right of Lessee or any
Permitted Sublessee to the possession, use, operation and quiet enjoyment of and
other rights with respect to the Engine under the Lease, and all rents,
revenues, profits and income therefrom, in accordance with the terms of the
Lease; provided that the Trust Company, Owner Trustee and Owner Participant
shall not be liable for any such interference by Indenture Trustee, Pass Through
Trustee, holders of any Equipment Notes, or any other Person lawfully claiming
by, through or on behalf of them.

                  SECTION 13. Liens. Each of the Trust Company, Owner Trustee
and Owner Participant severally covenants and agrees with each other party
hereto that it shall not cause or permit to exist a Lessor's Lien or Head
Lessor's Lien attributable to it with respect to the Engine or any other portion
of the Trust Estate or the Indenture Estate. Each of Trust Company, Owner
Trustee and Owner Participant severally agrees that it will promptly, at its own
expense (and without any right of indemnification or reimbursement from Lessee),
take such action as may be necessary duly to discharge any such Lessor's Lien or
Head Lessor's Lien attributable to it and to make restitution to the Trust
Estate and the Indenture Estate for any diminution of the assets thereof
resulting therefrom and will indemnify and hold harmless Lessee and each
Indemnitee against any claims incurred or suffered by any such Person and any
reduction in amounts payable out of, or diminution in the assets of, the Trust
Estate or the Indenture Estate resulting from any such Lessor's Lien or Head
Lessor's Lien attributable to it. For all purposes of this Agreement and the
other Operative Documents, any Lessor's Lien or Head Lessor's Lien arising as a
result of the nonpayment of any Tax imposed on or measured by the net income of
the Trust Estate or the trust created by the Trust Agreement that is not
indemnifiable by Lessee or Original Head Lessee shall be deemed to be
attributable to Owner Participant, and Owner Participant shall be responsible
for all Lessor's Liens attributable to Owner Participant and Owner Trustee.

                  Each of the Indenture Trustee, Pass Through Trustee and
Subordination Agent severally covenants and agrees with each other party hereto
that it shall not cause or permit to exist a Trustee's Lien (as defined below)
attributable to it with respect to the Engine or any other portion of the Trust
Estate or the Indenture Estate. Each of Indenture Trustee, Pass Through Trustee
and Subordination Agent severally agrees that it will promptly, at its own
expense (and without any right of indemnification or reimbursement from Lessee),
take such action as may be necessary duly to discharge any such Trustee's Lien
attributable to it and to make restitution to the Trust Estate and the Indenture
Estate for any diminution of the assets thereof resulting therefrom and will
indemnify and hold harmless Lessee


                                     - 43 -
   47
and each Indemnitee against any claims incurred or suffered by any such Person
and any reduction in amounts payable out of, or diminution in the assets of, the
Trust Estate or the Indenture Estate resulting from any such Trustee's Lien
attributable to it. For purposes of this paragraph, "Trustee's Lien" means any
Lien or disposition of title attributable to Indenture Trustee in its individual
capacity (and not as Indenture Trustee), Pass Through Trustee in its individual
capacity (and not as Pass Through Trustee) or Subordination Agent in its
individual capacity (and not as Subordination Agent) on or in respect of (as the
case may be) the Engine or any other portion of the Trust Estate or the Trust
Indenture Estate arising as a result of (i) Claims against such Person not
related to its interest in the Engine or the administration of the Trust Estate
or the Trust Indenture Estate pursuant to the Indenture, whether under Section
9-207(2)(e) of the Uniform Commercial Code or otherwise, (ii) acts or omissions
of such Person not contemplated hereunder or under the other Operative
Documents, or acts or omissions of such Person which are in violation of any of
the Operative Documents, or (iii) Taxes imposed on or Claims against such Person
which are excluded from indemnification by Lessee, or (iv) Claims against such
Person arising out of the voluntary or involuntary transfer by such Person of
all or any portion of its interest in the Engine, the Trust Estate, the Trust
Indenture Estate or the Operative Documents (except a Claim resulting from the
exercise of remedies under and in accordance with the Indenture or for a
transfer provided for in the Operative Documents).

                  Each of the Original Head Lessee and Parent Guarantor jointly
and severally covenants and agrees with each other party hereto that it shall
not cause or permit to exist a Sublessor's Lien (as defined in the Sublease)
attributable to it or other Lien or disposition of title created by or through
Original Head Lessee, Parent Guarantor or any Affiliate of either thereof which
would have constituted a Sublessor's Lien had the Sublease remained in effect
with respect to the Engine or any other portion of the Trust Estate or the
Indenture Estate. Each of the Original Head Lessee and Parent Guarantor
severally agrees that it will promptly, at its own expense (and without any
right of indemnification or reimbursement from Lessee), take such action as may
be necessary duly to discharge any such Sublessor's Lien attributable to it or
other Lien or disposition of title created by or through Original Head Lessee,
Parent Guarantor or any Affiliate of either thereof which would have constituted
a Sublessor's Lien had the Sublease remained in effect and to make restitution
to the Trust Estate and the Indenture Estate for any diminution of the assets
thereof resulting therefrom and will indemnify and hold harmless Lessee and each
Indemnitee against any claims incurred or suffered by any such Person and any
reduction in amounts payable out of, or diminution in the assets of, the Trust
Estate or the Indenture Estate resulting from any


                                     - 44 -
   48
such Sublessor's Lien attributable to it or other Lien or disposition of title
created by or through Original Head Lessee, Parent Guarantor or any Affiliate of
either thereof which would have constituted a Sublessor's Lien had the Sublease
remained in effect.

                  In no event will Lessee be liable for any Claims resulting
from, pertaining to, arising from, or related to the granting, creation or
existence of a Lessor's Lien, a Head Lessor's Lien, a Lenders' Lien, or a
Sublessor's Lien or other Lien or disposition of title created by or through
Original Head Lessee, Parent Guarantor or any Affiliate of either thereof which
would have constituted a Sublessor's Lien had the Sublease remained in effect.

                  The Parent Guarantor covenants and agrees that it shall cause
the Original Head Lessee to perform its obligations under this Section 13.

                  SECTION 14. Certain Additional Provisions Relating to Original
Head Lessee, Parent Guarantor, Trust Company, Owner Trustee and Owner
Participant. (a) Each of Owner Participant and Trust Company hereby agrees with
Lessee and Indenture Trustee (i) to comply with the terms of the Trust
Agreement, (ii) not to amend, supplement, or otherwise modify the Trust
Agreement except in accordance with the terms thereof, provided that any such
amendment, supplement or modification shall not adversely affect the Lessee, and
(iii) not to terminate or revoke the Trust Agreement except in accordance with
the terms thereof, provided that any such termination or revocation shall not
adversely affect the Lessee.

                  (b) Notwithstanding anything to the contrary in the Trust
Agreement or Section 14(a) hereof, but subject always to the provisions of
Section 14(c) hereof, Owner Participant shall not consent to or direct a change
in the situs of the Trust Estate so long as a successor Owner Trustee meeting
the requirements of the Trust Agreement is reasonably available at the present
situs of the Trust Estate (A) unless the Indenture Trustee, the Original Head
Lessee and Lessee shall have been given 30 days' prior notice thereof and (B)
if, within 15 days after notice of such a proposed change is given to Lessee and
the Original Head Lessee, either (1) Lessee or Original Head Lessee delivers to
Owner Participant and Owner Trustee (at the expense of Owner Participant) an
opinion of counsel, which counsel shall be reasonably satisfactory to Owner
Participant and Owner Trustee, to the effect that such proposed change in the
situs of the Trust Estate would have an adverse effect on the rights or
obligations of Lessee or Original Head Lessee or (2) Lessee or Original Head
Lessee delivers to Owner Participant and Owner Trustee (at the expense of Owner
Participant) an opinion of


                                     - 45 -
   49
counsel, which counsel shall be reasonably satisfactory to Owner Participant and
Owner Trustee, to the effect that such proposed change in the situs of the Trust
Estate would cause an increase in the amount for which Lessee may be required to
indemnify any Person pursuant to the provisions of Section 10 of the Lease or
for which Original Head Lessee is required to indemnify any Person pursuant to
the provisions of the Amended and Restated Head Lease TIA, unless any and all
Persons entitled to indemnification pursuant to Section 10 of the Lease or
applicable provision of the Amended and Restated Head Lease TIA shall waive
indemnification under Section 10 of the Lease or applicable provision of the
Amended and Restated Head Lease TIA for any adverse tax or other consequences to
it of such a change in the situs of the Trust Estate, and (C) unless Indenture
Trustee receives from Owner Participant an opinion of counsel, which counsel
shall be reasonably satisfactory to Indenture Trustee, to the effect that such
proposed change in the situs of the Trust Estate would not have an adverse
effect on the validity or priority of the Lien of the Indenture and that such
Uniform Commercial Code and FAA filings as are required to maintain the validity
and priority of the Lien of Indenture have been made.

                  (c) Owner Participant agrees that if, at any time, the Trust
Estate has become, or in Lessee's good faith opinion will become, subject to any
Taxes for which it is indemnified pursuant to Section 10 of the Lease and if, as
a consequence thereof, Lessee should request that the situs of the trust be
moved to another state in the United States of America from the state in which
it is then located, the situs of the trust shall be moved and Owner Participant
will take whatever action may be requested by Lessee that is reasonably
necessary to accomplish such removal; provided that (A) Lessee shall provide
such additional tax indemnification with respect to such change of situs and
request of Lessee as Original Head Lessee, Owner Participant or the Indenture
Trustee (subject to the exclusions set forth in Section 10(b) of the Lease and
the exclusions in the Amended and Restated Head Lease TIA) may reasonably
request, (B) promptly after notice thereof Owner Participant has not notified
Lessee and provided reasonable evidence of an adverse effect on Owner
Participant's rights or obligations under the Trust Agreement, (C) Indenture
Trustee shall have received an opinion of counsel selected by Lessee, which
counsel shall be reasonably satisfactory to Indenture Trustee, to the effect
that the validity and priority of the Lien of the Indenture Estate will not be
adversely affected by such action, and that such Uniform Commercial Code and FAA
filings as are required to maintain the validity and the priority of the Lien of
the Indenture have been made, (D) Owner Participant and Indenture Trustee shall
have received an opinion or opinions of counsel selected by Owner Participant to
the effect that, with customary exceptions, (I) the trust, as thus removed,
shall remain a validly established


                                     - 46 -
   50
trust, (II) any amendments to the Trust Agreement or the Indenture necessitated
by such removal shall have been duly authorized, executed and delivered by the
parties thereto and shall constitute the legal, valid and binding obligations of
such parties, enforceable in accordance with their terms, (III) if such removal
involves the replacement of Owner Trustee, an opinion of counsel to such
successor Owner Trustee in form and substance reasonably satisfactory to
Indenture Trustee and to Owner Participant covering the matters described in the
opinion described in Section 3(j) hereof, and (IV) covering such other matters
as Owner Participant or the Indenture Trustee may reasonably request, and (E)
Lessee shall indemnify and hold harmless on an after tax basis Owner Trustee,
Owner Participant and their respective Affiliates and Indenture Trustee against
any and all reasonable and actual costs and expenses including reasonable
attorneys' fees and disbursements, registration, recording or filing fees and
other Taxes incurred by Owner Trustee, Owner Participant and their respective
Affiliates, or Indenture Trustee in connection with such change of situs and
shall indemnify and hold harmless Owner Participant, Owner Trustee and their
respective Affiliates, and Indenture Trustee on an after tax basis (subject to
the exclusions set forth in Section 10(b) of the Lease and the Amended and
Restated Sublease TIA) from and against any increase in Taxes borne by such
Person that results from such change in situs. In no event shall any change in
situs of the trust affect Original Head Lessee's rights or obligations under the
Amended and Restated Head Lease TIA.

                  (d) Owner Trustee or any successor may resign or be removed by
Owner Participant, a successor Owner Trustee may be appointed, and a corporation
may become Owner Trustee under the Trust Agreement, only in accordance with the
provisions of Article X of the Trust Agreement. Owner Participant agrees
promptly to appoint a successor Owner Trustee in the event that Owner
Participant has actual knowledge that Owner Trustee is not in compliance with
its covenants contained herein. No successor Owner Trustee shall be appointed
unless Lessee and Indenture Trustee shall have given written consent thereto,
which consent shall not be unreasonably withheld. Owner Participant will not
instruct Owner Trustee to terminate any Operative Document or take any action
thereunder in violation of the terms thereof. Owner Participant shall not
transfer any interest in the Trust Estate except in compliance with Section 10
hereof and the Trust Company shall not permit Owner Trustee to engage in any
business other than owning and leasing the Engine as contemplated hereby. Lessee
shall pay expenses on an after tax basis relating to the resignation or, if
requested by Lessee, the removal of Owner Trustee, provided that the Owner
Participant shall pay expenses relating to the removal of the Owner Trustee, if
such removal was solely at the request of the Owner Participant.


                                     - 47 -
   51
                  SECTION 15. Certain Retained Rights and Releases. (a) Each of
Owner Trustee, Indenture Trustee, Lessee and Owner Participant hereby agrees to
and confirms that they are bound by the terminations, assignments, delegations,
releases and amendments set forth in or contemplated by Lease Amendment No. 1
and the Amended and Restated Lease.

                  (b) Each of Parent Guarantor, Original Head Lessee and Lessee
agree as among themselves that the following rights, benefits, obligations and
liabilities (such rights, benefits, obligations and liabilities are,
collectively, the "Retained Sublease Rights and Obligations"), shall survive the
termination of the Sublease: (i) Lessee, Original Head Lessee and Parent
Guarantor shall retain all rights, benefits, obligations and liabilities under
the Sublease, including that Sublessee shall remain liable for all of its
obligations under Sections 10 and 13 of the Sublease, with respect to the period
up to (but excluding) the Restatement Date and each of Parent Guarantor,
Original Head Lessee and Lessee shall retain all rights and liabilities under
any provision of the Sublease which by the express terms thereof survives the
termination or expiration thereof (including, without limitation, any such
liability arising from and including the Restatement Date under the Sublease in
respect of the period up to (but excluding), or acts or omissions or
circumstances arising prior to (but excluding), the Restatement Date), (ii) all
rights, benefits, obligations and liabilities under the Sublease TIA (which
rights, benefits, obligations and liabilities are amended and restated as of the
Restatement Date) and (iii) Original Head Lessee and Parent Guarantor shall
remain liable to Sublessee under the Sublease for Sublessor's Liens (as therein
defined); all of which rights, benefits, obligations and liabilities shall
expressly survive the termination of the Sublease. In furtherance of the
foregoing, it is agreed that Original Head Lessee shall continue to be liable to
the Sublessee as and to the extent provided hereunder for removal of Sublessor's
Liens.

                  (c) Each of the Lessee, Owner Trustee and Owner Participant
agree as among themselves that the following rights, benefits, obligations and
liabilities shall survive the termination of the Sublease: Lessee, and Owner
Trustee, Owner Participant and the other "Indemnitees" (as such term is defined
in the Sublease) other than Original Head Lessee and Parent Guarantor, shall
retain all rights, benefits, obligations and liabilities under the Sublease,
including that Sublessee shall remain liable for all of its obligations under
Sections 10 and 13 of the Sublease, with respect to the period up to (but
excluding) the Restatement Date and each of Lessee, Owner Trustee and Owner
Participant shall retain all rights and liabilities under any provision of the
Sublease which by the express terms thereof survives the termination thereof
(including, without limitation,


                                     - 48 -
   52
any such liability arising on or after the Restatement Date under the Sublease
in respect of the period up to (but excluding), or acts or omissions or
circumstances arising prior to (but excluding), the Restatement Date), all of
which rights, benefits, obligations and liabilities shall expressly survive the
termination of the Sublease. In furtherance of the foregoing, it is agreed by
Sublessee that the indemnities contained in Sections 10 and 13 of the Sublease
are expressly made for the benefit of and shall be enforceable by each
Indemnitee (as such term is defined in the Sublease).

                  (d) Except with respect to the Sublease and the Sublease TIA
to the extent provided in Section 15(b) and (c) hereof, it is expressly
understood and agreed by each of the parties hereto that the Original Head
Lessee and the Parent Guarantor shall, as of the Restatement Date, have no
liabilities or obligations under the "Operative Documents" (as defined in the
Original Head Lease as in effect immediately prior to (but excluding) the
Restatement Date and excluding the Head Lease TIA (which rights, benefits,
obligations and liabilities are amended and restated as of the Restatement
Date)) and are released from all such obligations and liabilities, except the
Original Head Lessee and the Parent Guarantor pursuant to the Parent Head Lease
Guaranty (i) shall continue to be liable to the parties hereto for the removal
of any Sublessor's Liens and (ii) (without releasing Sublessor as provided in
the Sublease) each of the Original Head Lessee, the Parent Guarantor, the Owner
Trustee, the Indenture Trustee and the Owner Participant agree as among
themselves and for the benefit of the other "Indemnitees" (as such term is
defined in the Original Head Lease) that all rights, benefits, obligations and
liabilities under Sections 7(c) and 7(d) of the Participation Agreement with
respect to the period up to (but excluding) the Restatement Date and under any
other provision of the Participation Agreement which by the express terms
thereof survives the termination thereof (including, without limitation, any
such liability arising from and including the Restatement Date under the
Participation Agreement in respect of the period up to (but excluding), or acts
or omissions or circumstances arising prior to (but excluding), the Restatement
Date) shall survive the termination of the Participation Agreement, the Original
Head Lease and the Parent Head Lease Guaranty (the foregoing surviving rights,
benefits, obligations and liabilities of Parent Guarantor and Original Head
Lessee, are, collectively, the "Retained Head Lease Rights and Obligations"). In
furtherance of the foregoing, the parties hereto consent and agree that the
Parent Guarantor is hereby released from any and all "Obligations" under and as
defined in the Parent Head Lease Guaranty, except in respect of the Retained
Head Lease Rights and Obligations and except in respect of the Amended and
Restated Head Lease TIA, the "Obligations" in respect of which shall continue in
full force and effect in accordance


                                     - 49 -
   53
with the Parent Head Lease Guaranty and are hereby ratified and confirmed by the
Parent Guarantor.

                  SECTION 16. Certain Additional Obligations of the Lessee, the
Owner Trustee, the Owner Participant and the Indenture Trustee. Each of Lessee,
Owner Trustee, Owner Participant and Indenture Trustee hereby covenants and
agrees for the benefit of each other that it will be bound by the terms of the
other Operative Documents to which it or its applicable trustee is a party, and
comply with and perform its agreements, covenants and indemnities set forth in
the other Operative Documents to which it or its applicable trustee is a party,
as amended, supplemented or otherwise modified from time to time as permitted
hereby.

                  SECTION 17. Lessee Protection of Title. Each of the Owner
Trustee and the Indenture Trustee agrees to execute and deliver such documents
or other instruments as the Lessee may reasonably request to enable the Lessee
to perform its obligations under Section 15 of the Lease for the benefit of such
Person.

                  SECTION 18.  Jurisdictional and Related Matters.

                  (a) Jurisdiction. Each of Owner Participant, Owner Trustee,
Trust Company, Indenture Trustee, Original Head Lessee, Parent Guarantor and
Lessee (i) hereby irrevocably submits for itself and its property to the
nonexclusive jurisdiction of the courts of the State of New York in New York
County, and to the nonexclusive jurisdiction of the United States District Court
for the Southern District of New York, for the purposes of any suit, action or
other proceeding arising out of this Agreement, the Lease or any other Operative
Document or any of the transactions contemplated hereby or thereby, and (ii)
hereby waives, and agrees not to assert, by way of motion, as a defense, or
otherwise, in any such suit, action or proceeding, to the extent permitted by
applicable law, any immunity (including, without limitation, sovereign
immunity), that the suit, action or proceeding is brought in an inconvenient
forum, that the venue of the suit, action or proceeding is improper, or that
this Agreement, the Lease or any other Operative Document or any of the
transactions contemplated hereby or thereby may not be enforced in or by such
courts.

                  (b) Service of Process. Lessee generally consents to service
of process by registered mail, return receipt requested, addressed to it at 4000
East Sky Harbor Blvd., Phoenix, Arizona 85034 or such other office of Lessee as
from time to time may be designated by Lessee in writing to Owner Trustee,
Original Head Lessee, Owner Participant and Indenture Trustee. Parent Guarantor
hereby appoints Paul, Hastings, Janofsky & Walker LLP,


                                     - 50 -
   54
Attention: John Howitt/Leigh Ryan, located at 399 Park Avenue, New York, New
York 10022, as its agent for service of process, and covenants and agrees that
service of process in any suit, action or proceeding may be made upon it at the
office of such agent or such other office of Parent Guarantor or such other
agent, as from time to time may be designated by Parent Guarantor in writing to
Owner Trustee, Owner Participant and Indenture Trustee. Original Head Lessee
hereby generally consents to service of process by registered mail, return
receipt requested, addressed to it at c/o GPA Corporation, 83 Wooster Heights
Road, Danbury, Connecticut 06810 or such other office of Original Head Lessee as
from time to time may be designated by Original Head Lessee in writing to Owner
Trustee, Owner Participant and Indenture Trustee. Owner Participant generally
consents to service of process by registered mail, return receipt requested,
addressed to it at _____________________________________ or such other office of
Owner Participant as from time to time may be designated by Owner Participant in
writing to Owner Trustee, Original Head Lessee, Lessee and Indenture Trustee.
Owner Trustee generally consents to service of process by registered mail,
return receipt requested, addressed to it at Rodney Square North, 1100 North
Market Street, Wilmington, Delaware 19890-0001 or such other office of Owner
Trustee as from time to time may be designated by Owner Trustee in writing to
Owner Participant, Original Head Lessee, Lessee and Indenture Trustee. Indenture
Trustee generally consents to service of process by registered mail, return
receipt requested, addressed to it at 777 Main Street CTMO 0238, Hartford,
Connecticut 06115 or such other office of Indenture Trustee as from time to time
may be designated in writing to Owner Participant, Original Head Lessee, Owner
Trustee and Lessee.

                  (c) Judgments. A final judgment (the enforcement of which has
not been stayed) against Owner Participant, Owner Trustee, Lessee, Original Head
Lessee, Parent Guarantor and Indenture Trustee obtained in any suit in the court
of the State of New York in New York County or in the United States District
Court for the Southern District of New York shall be conclusive, and, to the
extent permitted by applicable law, may be enforced in other jurisdictions by
suit on the judgment, a certified or true copy of which shall be conclusive
evidence of the fact and of the amount of any indebtedness or liability of
Lessee therein described; provided that the plaintiff at its option may bring
suit, or institute other judicial proceedings against, Lessee or any of its
assets in the courts of any country or place where Lessee or such assets may be
found.

                  SECTION 19. Limitation on Recourse. The provisions of Section
2.03(a) of the Indenture are hereby incorporated herein by reference mutatis
mutandis as fully and with the same force and effect as if set forth in full.


                                     - 51 -
   55
                  SECTION 20. Notices. Unless otherwise specifically provided
herein, all notices required or permitted by the terms of this Agreement shall
be in English and in writing, and shall be sent to the Original Head Lessee, the
Parent Guarantor, Lessee, the Owner Participant, the Owner Trustee, the Pass
Through Trustee, the Subordination Agent or the Indenture Trustee, at their
respective addresses or facsimile numbers set forth below the signatures of such
parties at the foot of this Agreement and any such notice shall become effective
when received.

                  SECTION 21. Expenses. (a) Subject to receipt by the Original
Head Lessee of invoices therefor in reasonable detail prior to the Restatement
Date, all of the reasonable out-of-pocket costs, fees and expenses incurred by
the Lessee, the Owner Trustee, the Owner Participant, the Pass Through Trustee,
the Subordination Agent, the Liquidity Provider, the Indenture Trustee and the
Original Certificate Holders in connection with the transactions contemplated by
this Agreement, the other Operative Documents, the Lease, the Pass Through Trust
Agreements, the Intercreditor Agreement, the Liquidity Facilities and the
Underwriting Agreement (except, in each case, as otherwise provided therein)
shall be paid on or prior to the Closing by the Original Head Lessee, including,
without limitation:

                  (1) the reasonable fees, expenses and disbursements allocable
         to the Equipment Notes issued under the Indenture of (A) Shipman &
         Goodwin LLP, special counsel for the Pass Through Trustee, the
         Subordination Agent and the Indenture Trustee, (B) Morris, James,
         Hitchens & Williams, special counsel for the Owner Trustee, (C)
         Daugherty, Fowler & Peregrin, special counsel in Oklahoma City,
         Oklahoma and (D) Milbank, Tweed, Hadley & McCloy, special counsel for
         the Underwriters;

                  (2)  the reasonable fees, expenses and disbursements of
         Hunton & Williams, special counsel for the Owner
         Participant;

                  (3)  the fees, expenses and disbursements of Andrews &
         Kurth L.L.P. and Latham & Watkins, special counsel for the
         Lessee;

                  (4)  underwriting fees and commissions;

                  (5) the initial fees and expenses of the Liquidity Provider,
         the Pass Through Trustee, the Indenture Trustee, the Owner Trustee and
         the Subordination Agent;


                                     - 52 -
   56
                  (6) the costs of filing and recording documents with the FAA
         and filing Uniform Commercial Code financing statements in the United
         States of America; and

                  (7) the reasonable fees, expenses and disbursements of White &
         Case, special counsel for the Liquidity Provider.

                  (b) In the event that the transactions contemplated by this
Section 21 and the agreements referred to herein are not consummated, the
Original Head Lessee shall bear and pay all costs, expenses and fees referred to
in this Section 21.

                  (c)  The Lessee agrees to pay the amounts it is
obligated to pay under Section 21(j) of the Lease.

                  SECTION 22. Reliance of Liquidity Provider. Each of the
parties hereto agrees and acknowledges that the Liquidity Provider shall be a
third party beneficiary of each of the representations and warranties made
herein by such party, and that the Liquidity Provider may rely on such
representations and warranties to the same extent as if such representations and
warranties were made to the Liquidity Provider directly. The terms of this
Agreement shall inure to the benefit of the Liquidity Provider, its successors
and permitted assigns.

                  SECTION 23. Miscellaneous. (a) Provided that the transactions
contemplated hereby have been consummated, and except as otherwise provided for
herein, the representations and warranties herein of the Original Head Lessee,
the Parent Guarantor, the Lessee, the Owner Trustee, the Indenture Trustee, the
Owner Participant, the Subordination Agent and the Pass Through Trustee shall
survive the execution and delivery of this Agreement. This Agreement may be
executed in any number of counterparts (and each of the parties hereto shall not
be required to execute the same counterpart). Each counterpart of this
Agreement, including a signature page executed by each of the parties hereto,
shall be an original counterpart of this Agreement, but all of such counterparts
together shall constitute one instrument. Neither this Agreement nor any of the
terms hereof may be terminated, amended, supplemented, waived or modified
orally, but only by an instrument in writing signed by each party hereto; and no
such termination, amendment, supplement, waiver or modification shall be
effective unless a signed copy thereof shall have been delivered to each party
hereto. The index preceding this Agreement and the headings of the various
Sections of this Agreement are for convenience of reference only and shall not
modify, define, expand or limit any of the terms or provisions hereof. The terms
of this Agreement shall be binding upon, and shall inure to the benefit of, the
Original Head Lessee and its successors and permitted assigns, the Parent
Guarantor and its successors and permitted assigns,


                                     - 53 -
   57
the Lessee and its successors and permitted assigns, the Pass Through Trustee
and its successors as Pass Through Trustee (and any additional trustee
appointed) under any of the Pass Through Trust Agreements, the Indenture Trustee
and its successors as Indenture Trustee (and any additional Indenture Trustee
appointed) under the Indenture, the Subordination Agent and its successors as
Subordination Agent under the Intercreditor Agreement, the Owner Trustee and its
successors as Owner Trustee under the Trust Agreement, and the Owner Participant
and its successors and permitted assigns. No purchaser or holder of any
Equipment Notes shall be deemed to be a successor or assign of any holder of the
Original Certificates.

                  (b) Upon the release of the Engine from the lien of the
Indenture and the termination of the Indenture pursuant to and in accordance
with Section 10.01 thereof, each requirement in the Operative Documents that the
consent of Indenture Trustee be obtained or that the Indenture Trustee be given
notice shall be of no further force and effect.

                  (c) The Lessee agrees for the express benefit of the Indenture
Trustee to perform its obligations under Section 8(k) of the Lease.

                  (d) The parties hereto agree for the benefit of the Lessee
that the Lessee can rely on the options, elections, determinations, consents,
approvals, waivers and notices given, exercised or made by the Owner Trustee
under the Lease to the extent reserved to the Owner Trustee pursuant to Section
5.10(d) of the Indenture.

                  (e) Notwithstanding anything to the contrary in any Operative
Document, the parties hereto hereby agree that the Put Termination Agreement and
the Deed of Indemnity (as such terms are defined herein) shall not constitute
Operative Documents or Financing Documents.

                  SECTION 24. Governing Law. THIS AGREEMENT SHALL BE GOVERNED
BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK WITHOUT
REGARD TO PRINCIPLES OF CONFLICTS OF LAW. THIS AGREEMENT IS BEING DELIVERED IN
THE STATE OF NEW YORK.

                  SECTION 25. Effectiveness. The parties hereto agree that this
Agreement shall be effective among all such parties on and as of the Restatement
Date.


                                     - 54 -
   58
                  IN WITNESS WHEREOF, the parties hereto have caused this
Agreement to be duly executed by their respective officers there unto duly
authorized as of the day and year first above written.

                        AMERICA WEST AIRLINES, INC.


                        By:_______________________________________
                              Name:
                              Title:

                        Address:     4000 East Sky Harbor Blvd.
                                     Phoenix, Arizona  85034

                        Telex:       755089 (Answerback: AMERWEST)
                        Telephone:   (602) 693-5785
                        Telecopier:  (602) 693-5904
                        Attention:   Senior Vice President - Legal Affairs


                        GPA LEASING USA I, INC.


                        By:_______________________________________
                              Name:
                              Title:

                        Address:     c/o GPA Corporation
                                     83 Wooster Heights Road
                                     Danbury, Connecticut 06810

                        Telephone:   (203) 830-4760
                        Telecopier:  (203) 830-4764
                        Attention:   Company Secretary


                        GPA GROUP plc


                        By:_______________________________________
                              Name:
                              Title:

                        Address:    GPA House
                                    Shannon, County Clare, Ireland
                        Telephone:  011-353-61360-051
                        Telecopier: 011-353-61360-000
                        Attention:  Company Secretary


                                     - 55 -
   59
                                WILMINGTON TRUST COMPANY, not in its
                                individual capacity, except as expressly
                                provided herein, but solely as Owner
                                Trustee

                                By:_______________________________________
                                      Name:
                                      Title:

                                Address:     Rodney Square North
                                             1100 North Market Street
                                             Wilmington, Delaware 19890-0001
                                Telephone:   (302) 651-1000
                                Telecopier:  (302) 651-8882
                                Attention:   Corporate Trust Administration


                                [___________________________________]


                                By:_______________________________________
                                      Name:
                                      Title:

                                Address:


                                Telephone:
                                Telecopier:
                                Attention:



                                FLEET NATIONAL BANK, not in its
                                individual capacity, except as otherwise
                                provided herein, but solely as Indenture
                                Trustee


                                By:_______________________________________
                                      Name:
                                      Title:

                                Address:    777 Main Street
                                            CTMO 0238
                                            Hartford, Connecticut 06115
                                Telephone:  (860) 986-4545
                                Telecopier: (860) 986-7920
                                Attention:  Corporate Trust Administration


                                     - 56 -
   60
                               FLEET NATIONAL BANK, not in its
                               individual capacity, except as otherwise
                               provided herein, but solely as
                               Subordination Agent

                               By:_______________________________________
                                     Name:
                                     Title:

                               Address:     777 Main Street
                                            CTMO 0238
                                            Hartford, Connecticut 06115
                               Telephone:   (860) 986-4545
                               Telecopier:  (860) 986-7920
                               Attention:   Corporate Trust Administration



                               FLEET NATIONAL BANK, not in its
                               individual capacity, except as otherwise
                               provided herein, but solely as Pass
                               Through Trustee


                               By:_______________________________________
                                     Name:
                                     Title:

                               Address:     777 Main Street
                                            CTMO 0238
                                            Hartford, Connecticut 06115
                               Telephone:   (860) 986-4545
                               Telecopier:  (860) 986-7920
                               Attention:   Corporate Trust Administration


                                     - 57 -
   61
                                                                   SCHEDULE I to
                                                             Refunding Agreement


                          PASS THROUGH TRUST AGREEMENTS

1.       Pass Through Trust Agreement, dated as of November 26, 1996,
         between America West Airlines, Inc. and Fleet National Bank,
         as supplemented by Trust Supplement No. 1996-1A, dated
         November 26, 1996.

2.       Pass Through Trust Agreement, dated as of November 26, 1996,
         between America West Airlines, Inc. and Fleet National Bank,
         as supplemented by Trust Supplement No. 1996-1B, dated
         November 26, 1996.

3.       Pass Through Trust Agreement, dated as of November 26, 1996,
         between America West Airlines, Inc. and Fleet National Bank,
         as supplemented by Trust Supplement No. 1996-1C, dated
         November 26, 1996.

4.       Pass Through Trust Agreement, dated as of November 26, 1996,
         between America West Airlines, Inc. and Fleet National Bank,
         as supplemented by Trust Supplement No. 1996-1D, dated
         November 26, 1996.

5.       Pass Through Trust Agreement, dated as of November 26, 1996,
         between America West Airlines, Inc. and Fleet National Bank,
         as supplemented by Trust Supplement No. 1996-1E, dated
         November 26, 1996.
   62
                                                                  SCHEDULE II to
                                                             Refunding Agreement


             EQUIPMENT NOTES, PASS THROUGH TRUSTS AND PURCHASE PRICE




Pass Through              Principal                       Maturity                  Interest                   Purchase
   Trusts                   Amount                          Date                      Rate                       Price
- ------------              ---------                       --------                  --------                   ---------

                                                                                                  
 Class A                 $ 1,343,995                     02-Jul-2009                  6.85%                   $ 1,343,995
 Class B                 $   503,996                     02-Jan-2006                  6.93%                   $   503,996
 Class C                 $   524,996                     02-Jan-2004                  6.86%                   $   524,996
 Class D                 $   489,995                     02-Jul-2002                  8.16%                   $   489,995
 Class E                 $ 1,458,204                     02-Jan-2004                 10.50%                   $ 1,458,204


   63
                                                                 SCHEDULE III to
                                                             Refunding Agreement


                           HOLDERS OF EQUIPMENT NOTES

                              Payment Instructions


         Fleet National Bank, 777 Main Street, Hartford, Connecticut
06115, Attn: Philip Kane, Corporate Trust Administration, Ref.
AWA, for the account of Fleet National Bank Account No. ABA
#011900445, ACCT. # 0067548290.
   64
                                                                    EXHIBIT A to
                                                             REFUNDING AGREEMENT


                          TRANSFEREE'S PARENT GUARANTEE
                                [GPA 1991 AWA-E2]

                  TRANSFEREE'S PARENT GUARANTEE [GPA 1991 AWA-E2], dated as of
____________ by _________________, a ________________________ corporation
("Guarantor") to and for the benefit of Indenture Trustee (individually and as
trustee), the Original Head Lessee, Owner Trustee and Lessee referred to in the
Refunding Agreement described below (collectively, together with their permitted
successors and assigns, "Beneficiaries" and, individually, a "Beneficiary").

                                   WITNESSETH:

                  WHEREAS, _____________________________, a Delaware corporation
("Transferor"), is the Owner Participant under that certain Refunding Agreement
[GPA 1991 AWA-E2], dated as of November 20, 1996 among Lessee, Original Head
Lessee, Parent Guarantor, Owner Trustee, Transferor, Pass Through Trustee,
Subordination Agent and Indenture Trustee, as amended, modified or supplemented
from time to time (the "Refunding Agreement");

                  WHEREAS, Transferor wishes to transfer, except to the extent
expressly reserved to Transferor, all of its right, title and interest in and to
the Refunding Agreement, the Trust Estate, the other Operative Documents to
which Transferor is a party, certain other agreements, instruments and documents
in its capacity as Owner Participant under the Refunding Agreement and all
proceeds therefrom as set forth in the Assignment and Assumption Agreement dated
the date hereof between Transferor and _____________________, a
________________________ corporation ("Transferee"); and

                  WHEREAS, the terms of the Refunding Agreement provide that the
aforementioned transfer is conditioned upon the execution and delivery of this
Guarantee by Guarantor;

                  NOW, THEREFORE, Guarantor hereby agrees with and for the
benefit of Beneficiaries as follows:

                  1.       Definitions.  As used in this Guarantee, terms
defined in the Refunding Agreement are used herein as therein
defined, unless otherwise defined herein.

                  2.       Guarantee.

                  (a) Guarantor hereby unconditionally and irrevocably
guarantees to Beneficiaries and their respective successors, endorsees,
transferees and assigns, the prompt and complete payment by Transferee when due
(whether at the stated maturity,
   65
by acceleration or otherwise) of, and the faithful performance of, and
compliance with, all payment obligations of Transferee under the Refunding
Agreement, the Amended and Restated Head Lease TIA and each other Operative
Document to which Owner Participant is a party and each other Operative Document
to which Transferee is a party or by which either is bound (collectively, the
"Relevant Documents"), strictly in accordance with the terms thereof and the
timely performance of all other obligations of Transferee thereunder (such
payment and other obligations, the "Obligations"), and Guarantor further agrees
to pay any and all expenses (including, without limitation, all fees and
disbursements of counsel) that may be paid or incurred by Beneficiaries in
enforcing, or obtaining advice of counsel in respect of, any rights with respect
to, or collecting, any or all of the Obligations and/or enforcing any rights
with respect to, or collecting against, Guarantor under this Guarantee.

                  (b) No payment or payments made by Transferee, Guarantor, any
other guarantor or any other Person or received or collected by any Beneficiary
from Transferee, Guarantor, any other guarantor or any other person by virtue of
any action or proceeding or any set-off or appropriation or application at any
time or from time to time in reduction of or in payment of the Obligations shall
be deemed to modify, reduce, release or otherwise affect the liability of
Guarantor hereunder until the Obligations are paid and performed in full.

                  (c) If for any reason any Obligation to be performed or
observed by Transferee (whether affirmative or negative in character) shall not
be observed or performed, or if any amount payable by Transferee referred to in
Section 1(a) hereof shall not be paid promptly when due and payable, Guarantor
shall promptly perform or observe or cause to be performed or observed each such
Obligation or undertaking and shall forthwith pay such amount at the place and
to the person or entity entitled thereto pursuant to the Relevant Documents
regardless of whether or not Lessee, Original Head Lessee, Owner Trustee, Pass
Through Trustee, Subordination Agent, Indenture Trustee, or anyone on behalf of
any of them shall have instituted any suit, action or proceeding or exhausted
its remedies or taken any steps to enforce any rights against Transferee or any
other person or entity to compel any such performance or to collect all or any
part of such amount pursuant to the provisions of the Relevant Documents or at
law or in equity, or otherwise, and regardless of any other condition or
contingency.

                  3. No Subrogation. Notwithstanding any payment or payments
made by Guarantor hereunder or any setoff or application of funds of Guarantor
by any Beneficiary, Guarantor shall not be entitled to be subrogated to any of
the rights of any Beneficiary against Transferee or any collateral, security or
guarantee or


                                      - 2 -
   66
right of set-off held by any Beneficiary for the payment of the Obligations, nor
shall Guarantor seek or be entitled to seek any reimbursement from Transferee in
respect of payments made by Guarantor hereunder, until all amounts and
performance owing to Beneficiaries by Transferee on account of the Obligations
are paid and performed in full.

                  4. Amendments, etc., with respect to the Obligations; Waiver
of Rights. The Guarantor shall remain fully obligated hereunder notwithstanding
that, without any reservation of rights against the Guarantor and without notice
to or further assent by the Guarantor, any demand for payment or performance of
any of the Obligations made by any Beneficiary may be rescinded by such party
and any of the Obligations continued, and the Obligations, or the liability of
any other party upon or for any part thereof, or any collateral security or
guarantee therefor or right of offset with respect thereto, may, from time to
time, in whole or in part, be renewed, extended, amended, modified, accelerated,
compromised, waived, surrendered or released by any Beneficiary and any Relevant
Document and/or any collateral security document or other guarantee or document
in connection therewith, may be amended, modified, supplemented or terminated,
in whole or in part, as the parties thereto may deem advisable from time to
time, and any collateral security, guarantee or right of offset at any time held
by any beneficiary for the payment or performance of the Obligations may be
sold, exchanged, waived, surrendered or released. No beneficiary shall have any
obligation to protect, secure, perfect or insure any lien at any time held by it
as security for the Obligations or for this Guarantee or any property subject
thereto. When making any demand hereunder against the Guarantor, a Beneficiary
may, but shall be under no obligation to, make a similar demand on the
Transferee or any other guarantor, and any failure by a Beneficiary to make any
such demand or to collect any payments from the Transferee or any such other
guarantor or any release of the Transferee or such other guarantor shall not
relieve the Guarantor of its obligations or liabilities hereunder, and shall not
impair or affect the rights and remedies, express or implied, or as a matter of
law, of any Beneficiary against the Guarantor. For purposes hereof, "demand"
shall include the commencement and continuance of any legal proceedings. The
Guarantor represents and warrants that it owns, directly or indirectly, at least
the portion of the capital stock of the Transferee required by the Refunding
Agreement and that, except as otherwise provided in Section 5 hereof, its
obligations hereunder shall continue unimpaired, even if the Guarantor no longer
owns, directly or indirectly, such portion of the capital stock of the
Transferee.

                  5. Transfer of Interest in Transferee. Guarantor shall not
assign, convey or otherwise transfer to any person (a) any of its interest in
Transferee unless in connection therewith,


                                      - 3 -
   67
Guarantor assigns its rights and obligations hereunder to a guarantor which
meets the requirements of Section 10 of the Refunding Agreement; provided that
nothing contained in this Section 5 shall be construed to prohibit any merger,
consolidation or other corporate restructuring of Transferee or Guarantor so
long as the resulting corporation meets the requirements of Section 10 of the
Refunding Agreement and assumes the obligations of the corporation merged or
consolidated into.

                  6. Guarantee Absolute and Unconditional. The Guarantor waives
any and all notice of the creation, renewal, extension or accrual of any of the
Obligations and notice of or proof of reliance by any Beneficiary upon this
Guarantee or acceptance of this Guarantee; the Obligations, and any of them,
shall conclusively be deemed to have been created, contracted or incurred, or
renewed, extended, amended or waived, in reliance upon this Guarantee; and all
dealings between the Transferee or the Guarantor and any Beneficiary shall
likewise be conclusively presumed to have been had or consummated in reliance
upon this Guarantee. The Guarantor waives diligence, presentment, protest,
demand for payment and notice of default or nonpayment to or upon the Transferee
or the Guarantor with respect to the Obligations. The Guarantor understands and
agrees that this Guarantee shall be construed as a continuing, absolute and
unconditional guarantee of payment and performance (and not merely of
collectibility) without regard to (a) the validity, regularity or enforceability
of any Relevant Document, any of the Obligations or any collateral security
therefor or guarantee or right of offset with respect thereto at any time or
from time to time held by any Beneficiary, (b) any defense, set-off or
counterclaim (other than a defense of payment or performance) that may at any
time be available to or be asserted by the Transferee against any Beneficiary,
or (c) any other circumstance whatsoever (with or without notice to or knowledge
of the Transferee or the Guarantor) that constitutes, or might be construed to
constitute, an equitable or legal discharge of the Transferee for the
Obligations, or of the Guarantor under this Guarantee, in bankruptcy or in any
other instance. When pursuing its rights and remedies hereunder against the
Guarantor, any Beneficiary may, but shall be under no obligation to, pursue such
rights and remedies as it may have against the Transferee or any other person or
entity or against any collateral security or guarantee for the Obligations or
any right of offset with respect thereto, and any failure by any Beneficiary to
pursue such other rights or remedies or to collect any payments from the
Transferee or any such other person or entity or to realize upon any such
collateral security or guarantee or to exercise any such right of offset, or any
release of the Transferee or any such other person or entity or any such
collateral security, guarantee or right of offset, shall not relieve the
Guarantor of any liability hereunder, and shall not impair or affect the rights
and


                                      - 4 -
   68
remedies, whether express, implied or available as a matter of law, of any
Beneficiary against the Guarantor. This Guarantee shall remain in full force and
effect and be binding in accordance with and to the extent of its terms upon the
Guarantor and the successors and assigns thereof, and shall inure to the benefit
of the Beneficiaries, and their respective successors, endorsees, transferees
and assigns, until all of the Obligations and the Obligations of the Guarantor
under this Agreement shall have been satisfied by payment and performance in
full. The Guarantor further agrees that, without limiting the generality of this
Guarantee, if any Beneficiary (or any assignee thereof) shall be prevented by
applicable law from exercising its remedies (or any of them) against the
Transferee under any Operative Document, such Beneficiary (or any assignee
thereof) shall be entitled to receive hereunder from the Guarantor, upon demand
therefor, the sums that would have otherwise been due from the Transferee had
such remedies been able to be exercised.

                  7. Reinstatement. This Guarantee shall continue to be
effective, or be reinstated, as the case may be, if at any time payment, or any
part thereof, of any of the Obligations is rescinded or must otherwise be
restored or returned by any beneficiary upon the insolvency, bankruptcy,
dissolution, liquidation or reorganization of the Transferee or the Guarantor,
or upon or as a result of the appointment of a receiver, intervenor or
conservator of, or trustee or similar officer for, the Transferee or the
Guarantor or any substantial part of its property, or otherwise, all as though
such payments had not been made. The Guarantor shall not commence any "case" (as
defined in Title 11 of the United States Code) against the Transferee.

                  8. Payments. The Guarantor hereby guarantees that payments
hereunder shall be paid without set-off, counterclaim, deduction or withholding,
and shall be made in U.S. Dollars. If any payment hereunder is subject to
deduction or withholding, Guarantor shall pay an additional amount such that,
after deduction of all amounts required to be deducted or withheld, the net
amount actually received will equal the amount that would have been received had
such deduction or withholding not been required.

                  9. Representations and Warranties. The Guarantor hereby
represents and warrants that:

                  (a) the Guarantor is a corporation duly organized, validly
         existing and in good standing under the laws of the jurisdiction of its
         incorporation and has the corporate power and authority and the legal
         right to own and operate its property, to lease the property it
         operates and to conduct the business in which it is currently engaged;



                                      - 5 -
   69
                  (b) the Guarantor has the corporate power and authority and
         the legal right to execute and deliver, and to perform its obligations
         under, this Guarantee, and has taken all necessary corporate action to
         authorize its execution, delivery and performance of this Guarantee;

                  (c) this Guarantee constitutes a legal, valid and binding
         obligation of the Guarantor enforceable in accordance with its terms,
         except as enforceability may be limited by bankruptcy, insolvency,
         reorganization, moratorium or similar laws affecting the enforcement of
         creditors' rights generally;

                  (d) the execution, delivery and performance of this Guarantee
         will not violate any provision of any requirement of law or contractual
         obligation of the Guarantor and will not result in or require the
         creation or imposition of any lien on any of the properties or revenues
         of the Guarantor pursuant to any requirement of law or contractual
         obligation of the Guarantor;

                  (e) no consent or authorization of, filing with, or other act
         by or in respect of, any arbitrator or governmental authority and no
         consent of any other person (including, without limitation, any
         stockholder or creditor of the Guarantor) is required in connection
         with the execution, delivery, performance, validity or enforceability
         of this Guarantee;

                  (f) no litigation, investigation or proceeding of or before
         any arbitrator or governmental authority is pending or, to the
         knowledge of the Guarantor, threatened by or against the Guarantor or
         against any of its properties or revenues (i) with respect to this
         Guarantee or any of the transactions contemplated hereby or (ii) that
         could have a material adverse effect on the business, operations,
         property or financial or other condition of the Guarantor;

                 [(g) the balance sheet of the Guarantor as at _________________
         and the related statement of income and retained earnings for the
         fiscal year then ended (copies of which have heretofore been furnished
         to each Beneficiary) have been prepared in accordance with generally
         accepted accounting principles applied consistently throughout the
         period involved, are complete and correct and present fairly the
         financial condition of the Guarantor as at such date and the results of
         its operations for such fiscal year; since such date there has been no
         material adverse change in the business, operations, property or
         financial or other condition of the Guarantor; the Guarantor has no
         material contingent obligation, contingent liability or liability for


                                      - 6 -
   70
         taxes, long-term lease or unusual forward or long-term commitment that
         is not reflected in the foregoing statements or in the notes thereto;
         and](1)

                  (h) the Guarantor is [type of legal personality] with a
         [combined capital, surplus and undivided profits] [tangible net worth]
         of at least $60,000,000.

                  10. Severability. Any provision of this Guarantee that is
prohibited or unenforceable in any jurisdiction shall, as to such jurisdiction,
be ineffective to the extent of such prohibition or unenforceability without
invalidating the remaining provisions hereof, and any such prohibition or
unenforceability in any jurisdiction shall not invalidate or render
unenforceable such provision in any other jurisdiction.

                  11. No Waiver; Cumulative Remedies. No Beneficiary shall by
any act (except by a written instrument pursuant to Section 13 hereof), delay,
indulgence, omission or otherwise be deemed to have waived any right or remedy
hereunder or to have acquiesced in any breach of any of the terms and conditions
hereof. No failure to exercise, nor any delay in exercising, on the part of any
Beneficiary, any right, power or privilege hereunder shall operate as a waiver
thereof. No single or partial exercise of any right, power or privilege
hereunder shall preclude any other or further exercise thereof or the exercise
of any other right, power or privilege. A waiver by a Beneficiary of any right
or remedy hereunder on any one occasion shall not be construed as a bar to any
right or remedy that such Beneficiary would otherwise have on any future
occasion. The rights and remedies herein provided are cumulative, may be
exercised singly or concurrently and are not exclusive of any rights or remedies
provided by law.

                  12. Integration. This Guarantee represents the entire
agreement of Guarantor with respect to the subject matter hereof and there are
no promises or representations by any Beneficiary relative to the subject matter
hereof not reflected herein.

                  13. Amendments and Waivers. None of the terms or provisions of
this Guarantee may be waived, amended or supplemented or otherwise modified
except by a written instrument executed by Guarantor and each Beneficiary.

                  14. Section Headings. The Section headings used in this
Guarantee are for convenience of reference only and not to 

- -------- 
1 This representation is not applicable if Transferee is a wholly-owned
  subsidiary of the Owner Participant.


                                      - 7 -
   71
affect the construction hereof or be taken into consideration in
the interpretation hereof.

                  15. Successors and Assigns. This Guarantee shall be binding
upon the successors and assigns of Guarantor and shall inure to the benefit of
Beneficiaries and their respective successors and assigns.

                  16. GOVERNING LAW. THIS GUARANTEE SHALL BE GOVERNED BY AND
CONSTRUED AND INTERPRETED IN ACCORDANCE WITH THE LAW OF THE STATE OF NEW YORK.

                  17. Notices. All notices, requests and demands to or upon the
Guarantor or any Beneficiary to be effective shall be in writing or by
telegraph, telex or telecopy and, unless otherwise expressly provided herein,
shall be deemed to have been duly given or made when delivered by hand, or, in
the case of mail, two days after deposit in the postal system, first class
postage pre-paid, or, in the case of telegraphic notice, when sent, answerback
received, addressed to (a) in the case of the Guarantor, the address provided on
the signature page hereof, and (b) in the case of any Beneficiary, the address
provided for such party in the Refunding Agreement.


                                      - 8 -
   72
                  IN WITNESS WHEREOF, the undersigned has caused this Guarantee
to be duly executed and delivered by its duly authorized officer as of the day
and the year first above written.

                                              [NAME OF GUARANTOR]


                                               By: __________________________
                                                           Title:


                                      - 9 -
   73
                                                                    EXHIBIT B to
                                                             REFUNDING AGREEMENT


                       ASSIGNMENT AND ASSUMPTION AGREEMENT
                                [GPA 1991 AWA-E2]

                  ASSIGNMENT AND ASSUMPTION AGREEMENT [GPA 1991 AWA-E2]
("Assignment") dated as of _____________, between ______________, a ___________
corporation ("Assignor") and ________________, a __________ corporation
("Assignee") entered into for the benefit of Indenture Trustee, Owner Trustee,
Original Head Lessee and Lessee referred to in the Refunding Agreement mentioned
below.

                                   WITNESSETH:

                  WHEREAS, the parties hereto desire to effect (a) the transfer
by Assignor to Assignee of all of the right, title and interest of the Assignor
(except as reserved below) in, under and with respect to, among other things,
(i) the Refunding Agreement, dated as of November 20, 1996, among American West
Airlines, Inc., Assignor, GPA Leasing USA I, Inc., GPA Group plc, Wilmington
Trust Company, as Owner Trustee, Fleet National Bank, as Pass Through Trustee,
_______________________________, Fleet National Bank, as Subordination Agent,
and Fleet National Bank, as Indenture Trustee, as amended, modified or
supplemented from time to time (the "Refunding Agreement"), (ii) the Trust
Agreement identified in the Refunding Agreement, (iii) the Trust Estate (as
defined in the Trust Agreement), (iv) the Amended and Restated Head Lease TIA
identified in the Refunding Agreement, (v) the proceeds therefrom and (vi) the
Indenture (as defined in the Refunding Agreement) and (b) the assumption by
Assignee of the obligations of Assignor accruing thereunder;

                  NOW, THEREFORE, it is hereby agreed as follows:

                  1. Definitions. Capitalized terms used herein without
definition shall have the meaning ascribed thereto in the Refunding Agreement.
For purposes of this Assignment, the defined term "Operative Document" shall
have the meaning ascribed thereto in the Refunding Agreement and shall be deemed
to include the Amended and Restated Head Lease TIA.

                  2. Assignment. Assignor has sold, conveyed, assigned,
transferred and set over, and does hereby sell, convey, assign, transfer and set
over, unto Assignee, as of the date hereof, all of its right, title and interest
in, under and with respect to the Refunding Agreement, the Trust Agreement, the
Trust Estate, the Amended and Restated Head Lease TIA, the Indenture, all of the
other Operative Documents to which Assignor is a party or any other contract,
agreement, document or instrument relating to the Trust Estate by which Assignor
is bound, and any proceeds therefrom, together with all other documents and
instruments evidencing any of such right, title and interest, except such
   74
rights of Assignor as have accrued to Assignor prior to the date hereof
(including specifically, but without limitation, the right to receive any
amounts due or accrued to Assignor under the Trust Agreement as of a date prior
to such date and the right to receive any indemnity payment pursuant to the
Refunding Agreement or the Lease with respect to events occurring prior to such
date).

                  3. Assumption. Assignee hereby undertakes all of the duties
and obligations of Assignor whenever accrued (other than duties and obligations
of Assignor required to be performed by it on or prior to the date hereof under
the Operative Documents to which Owner Participant is a party and any of the
other Operative Documents by which Assignor is bound or any other contract,
agreement, document or other instrument relating to the Trust Estate to which
Assignor is a party or by which it is bound), pursuant to the Trust Agreement
and any of the other Operative Documents by which Assignor is bound or any other
contract, agreement, document or other instrument relating to the Trust Estate
to which Assignor is a party or by which it is bound, and hereby confirms that
it shall be deemed a party to the Trust Agreement and shall be bound by each of
the other Operative Documents and each other contract, agreement, document or
other instrument relating to the Trust Estate to which Assignor is a party or by
which it is bound as if therein named as Trustor.

                  4. Release of Assignor. Except for liabilities not assumed as
provided in Section 3 hereof, upon the execution of this Assignment and
Assumption Agreement, Assignor shall have no further duty or obligation under
the Operative Documents to which Owner Participant is a party or under any of
the other Operative Documents by which Assignor is bound or under any other
contract, agreement, document or other instrument relating to the Trust Estate
to which Assignor is a party or by which it is bound; provided, however, that
Assignor shall in no event be released from any obligation under the Operative
Documents with respect to Claims or other claims thereunder by or against
Assignor which have accrued or been made prior to the date of transfer.

                  5. Appointment as Attorney-in-Fact. In furtherance of the
within assignment, Assignor hereby constitutes and appoints Assignee, and its
successors and assign, the true and lawful attorneys of Assignor, with full
power of substitution, in the name of Assignee or in the name of Assignor but on
behalf of and for the benefit of and at the expense of Assignee, to collect for
the account of Assignee all items sold, transferred or assigned to Assignee
pursuant hereto; to institute and prosecute, in the name of Assignor or
otherwise, but at the expense of Assignee, all proceedings that Assignee may
deem proper in order to collect, assert or enforce any claim, right or title of
any kind in or to the items sold, transferred or assigned; to defend and


                                      - 2 -
   75
compromise at the expense of Assignee any and all actions, suits or proceedings
as to title to or interest in any of the property acquired by Assignee; and to
do all such acts and things in relation thereto at the expense of Assignee as
Assignee shall reasonably deem advisable. Assignor hereby acknowledges that this
appointment is coupled with an interest and is irrevocable by Assignor in any
manner or for any reason.

                  6. Payments. Assignor hereby covenants and agrees to pay over
to Assignee, if and when received following the date hereof, any amounts
(including any sums payable as interest in respect thereof) paid to or for the
benefit of Assignor that, under Section 2 hereof, belong to Assignee, and
Assignee hereby covenants and agrees to pay over to Assignor, if and when
received following the date hereof, any amounts (including any sums payable as
interest in respect thereof) paid to or for the benefit of Assignee that, under
Section 2 hereof, belong to Assignor.

                  7. Investment Purpose. Assignee hereby represents that it is
acquiring the Trust Estate interests and other interests hereby assigned to it
without a view to the distribution or resale of either thereof.

                  8. Representations and Warranties. Assignee represents and
warrants that:

                  (a) it has all requisite power and authority and legal right
         to enter into and carry out the transactions contemplated hereby and to
         carry out and perform the transactions of Owner Participant as
         contemplated by the Operative Documents;

                  (b)  [Intentionally Omitted];

                  (c) on and as of the date hereof, the representations and
         warranties of Owner Participant set forth in Section 9 of the Refunding
         Agreement and as set forth in any other Agreement to which Owner
         Participant is a party are true and correct as to Assignee;

                  (d)  it is a permitted Transferee under Section 10 of
         the Refunding Agreement;

                  (e) Assignee or its guarantor has a [combined capital, surplus
         and undivided profits] [tangible net worth] of not less than
         $60,000,000.

                  9. Governing Law. This Assignment and Assumption Agreement
shall be governed by and construed in accordance with the laws of the State of
New York.


                                      - 3 -
   76
                  IN WITNESS WHEREOF, the parties hereto have executed this
Assignment and Assumption Agreement as of the day and year first above written.

                                      [ASSIGNOR]



                                      By:___________________________________
                                          Title:

                                      [ASSIGNEE]


                                      By:___________________________________
                                          Title:


                                      - 4 -
   77
                                                                    EXHIBIT C to
                                                             REFUNDING AGREEMENT



                             [INTENTIONALLY OMITTED]
   78
                                                                    EXHIBIT D to
                                                             REFUNDING AGREEMENT



                        FORM OF INSURANCE BROKER'S REPORT

                                 [see attached]
   79
                                                                      ANNEX A to
                                                             REFUNDING AGREEMENT


                                  FAA DOCUMENTS

                     Documents Filed on the Restatement Date

         (a)      First Amended and Restated Trust Indenture and Security
                  Agreement [GPA 1991 AWA-E2] dated as of November 26,
                  1996 (the "Amended and Restated Indenture") between the
                  Owner Trustee and the Indenture Trustee, amending and
                  restating the Original Indenture with attached thereto
                  Trust Agreement and Indenture Supplement No. 2 [GPA
                  1991 AWA-E2] dated November 26, 1996 (the "Indenture
                  Supplement"), with respect to the Engine, which Amended
                  and Restated Indenture with the Indenture Supplement
                  attached was filed with the FAA at 12:21 p.m., C.S.T.
                  on November 26, 1996;

         (b)      Assignment and Amendment No. 1 and Sublease Termination
                  Agreement dated as of November 26, 1996 (the "Lease
                  Amendment") among the Original Head Lessee, as
                  assignor, the Owner Trustee, as lessor, the Lessee, as
                  assignee, and the Indenture Trustee, which (i) assigns
                  all right, title and interest of the Original Head
                  Lessee in and to the Original Head Lease to the Lessee,
                  (ii) terminates the Sublease and (iii) releases the
                  Sublease Collateral Assignment, which Lease Amendment
                  was filed with the FAA at 12:22 p.m., C.S.T. on
                  November 26, 1996; and

         (c)      Amended and Restated Engine Lease Agreement [GPA 1991
                  AWA-E2] dated as of March 15, 1991 and amended and
                  restated as of November 26, 1996 (the "Amended and
                  Restated Lease") between the Owner Trustee, as lessor,
                  and the Lessee, as successor lessee, amending and
                  restating the Original Head Lease, with Lease
                  Supplement [GPA 1991 AWA-E2] No. 2 dated November 26,
                  1996 (the "Lease Supplement") between the Owner
                  Trustee, as lessor, and the Lessee, as successor
                  lessee, with respect to the Engine, attached thereto,
                  which Amended and Restated Lease with the Lease
                  Supplement attached was filed with the FAA at 12:23
                  p.m., C.S.T. on November 26, 1996.

                                 Trust Agreement

                  Trust Agreement [GPA 1991 AWA-E2] dated as of March 15, 1991
between Wilmington Trust Company, as owner trustee, and
__________________________, as owner participant, as supplemented by Trust
Agreement Supplement [GPA 1991 AWA-E2] No. 1 dated March 27, 1991, which were
not filed with the FAA.

                               Original Indenture
   80
                  Trust Indenture and Security Agreement [GPA 1991 AWA- E2]
dated as of March 15, 1991 between Wilmington Trust Company, as owner trustee
under Trust Agreement [GPA 1991 AWA-E2] dated as of March 15, 1991, and Fleet
National Bank (formerly known as Fleet National Bank of Connecticut, Shawmut
Bank Connecticut, National Association, and The Connecticut National Bank), as
indenture trustee, which was recorded by the Federal Aviation Administration on
March 28, 1991 and assigned Conveyance No. L62815, as supplemented and amended
by the following described instruments:



                                             Date of                    FAA                            FAA
Instrument                                  Instrument              Recording Date                Conveyance No.
- ----------                                  ----------              --------------                --------------

                                                                                          
Trust Indenture
Supplement No. 1                            03/27/91                   03/28/91                     L62815

Amendment No. 1 to
Trust Indenture and
Security Agreement                          03/27/92                   04/29/92                     DD002563

Amendment No. 2 to
Trust Indenture and                           as of
Security Agreement                          07/29/93                   08/06/93                     F59679



                               Original Head Lease

                  Engine Lease Agreement [GPA 1991 AWA-E2] dated as of March 15,
1991 between Wilmington Trust Company, as owner trustee under Trust Agreement
[GPA 1991 AWA-E2] dated as of March 15, 1991, as lessor, and GPA Leasing USA I,
Inc., as lessee, which was recorded by the Federal Aviation Administration on
March 28, 1991 and assigned Conveyance No. L62816, as supplemented by the
following described instrument:



                         Date of           FAA             FAA
Instrument              Instrument    Recording Date  Conveyance No.
- ----------              ----------    --------------  --------------

                                              
Lease Supplement
[GPA 1991 AWA-E2]
No. 1                   03/27/91       03/28/91          L62816



                                    Sublease

                  Engine Sublease Agreement [GPA 1990 AWA-E2] dated as of
December 12, 1990 between GPA Leasing USA I, Inc., as sublessor, and America
West Airlines, Inc., as sublessee, which was recorded by the Federal Aviation
Administration on February 19, 1991 and assigned Conveyance No. AA46490, as
supplemented and amended by the following described instruments:


                                      - 2 -
   81


                                             Date of                     FAA                           FAA
Instrument                                 Instrument               Recording Date                Conveyance No.
- ----------                                 ----------               --------------                --------------
                                                                                          
Sublease Supplement
No. 1                                       02/08/91                   02/19/91                     AA46490

Amendment No. 1 to
Engine Sublease
Agreement [GPA 1990                           as of
AWA-E2]                                     08/26/91                   09/11/91                     J68136


                         Sublease Collateral Assignment

                  Assignment of Sublease [GPA 1991 AWA-E2] dated as of March 15,
1991 between GPA Leasing USA I, Inc., as assignor, and Wilmington Trust Company,
as owner trustee under Trust Agreement [GPA 1991 AWA-E2] dated as of March 15,
1991, as supplemented, as assignee, which was recorded by the Federal Aviation
Administration on March 28, 1991 and assigned Conveyance No. L62818.


                                      - 3 -