1
                                                                     EXHIBIT 4.3

         This Trust Supplement No. 1996-1B, dated as of November 26, 1996
(herein called the "Trust Supplement"), between America West Airlines, Inc., a
Delaware corporation (the "Company"), and Fleet National Bank (the "Trustee"),
to the Pass Through Trust Agreement, dated as of November 26, 1996, between the
Company and the Trustee (the "Basic Agreement").

                              W I T N E S S E T H:

         WHEREAS, the Basic Agreement, unlimited as to the aggregate principal
amount of Certificates (unless otherwise specified herein, capitalized terms
used herein without definition having the respective meanings specified
heretofore in the Basic Agreement) which may be issued thereunder, has
heretofore been executed and delivered:

         WHEREAS, each Owner Trustee, acting on behalf of its respective Owner
Participant, will issue, on a non-recourse basis, Equipment Notes, among other
things, to refinance the outstanding debt portion of the purchase price of the
aircraft and spare engines purchased by such Owner Trustee and leased to the
Company pursuant to the related Lease;

         WHEREAS, pursuant to the terms and conditions of the Basic Agreement as
supplemented by this Trust Supplement (the "Agreement"), the Trustee shall
purchase such Equipment Notes issued by each Owner Trustee having the same
interest rate as, and final maturity dates not later than the final Regular
Distribution Date of, the Certificates issued hereunder and shall hold such
Equipment Notes in trust for the benefit of the Certificateholders;

         WHEREAS, the Trustee hereby declares the creation of the America West
Airlines Pass Through Trust 1996-1B (the "1996-1B Trust") for the benefit of the
Certificateholders, and the initial Certificateholders as the grantors of the
1996-1B Trust, by their respective acceptances of the Certificates, join in the
creation of this 1996-1B Trust with the Trustee;

         WHEREAS, all of the conditions and requirements necessary to make this
Trust Supplement, when duly executed and delivered, a valid, binding and legal
instrument in accordance with its terms and for the purposes herein expressed,
have been done, performed and fulfilled, and the execution and delivery of this
Trust Supplement in the form and with the terms hereof have been in all respects
duly authorized;

         WHEREAS, this Trust Supplement is subject to the provisions of the
Trust Indenture Act of 1939, as amended, and shall, to the extent applicable, be
governed by such provisions;

         NOW THEREFORE, in consideration of the premises herein, it is agreed
between the Company and the Trustee as follows:

                         Series 1996-1B Trust Supplement
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                                    ARTICLE I
                                THE CERTIFICATES

         Section 1.01. The Certificates. There is hereby created a series of
Certificates to be issued under the Agreement to be distinguished and known as
"America West Airlines Pass Through Certificates, Series 1996-1B" (hereinafter
defined as the "Series 1996-1B Certificates"). Each Series 1996-1B Certificate
represents a Fractional Undivided Interest in the 1996-1B Trust created hereby.

         The terms and conditions applicable to the Series 1996-1B Certificates
are as follows:

                  (a) The aggregate principal amount of the Series 1996-1B
         Certificates that shall be authenticated under the Agreement (which
         limit shall not pertain to Series 1996-1B Certificates authenticated
         and delivered upon registration of transfer of, or in exchange for, or
         in lieu of other Series 1996-1B Certificates pursuant to Sections 3.03,
         3.04 and 3.05 of the Basic Agreement) upon their initial issuance is
         $37,129,000. The parties hereto acknowledge that the provisions of
         Section 2.02(b) of the Basic Agreement are of no force or effect with
         respect to the Series 1996-1B Certificates.

                  (b) The Regular Distribution Dates with respect to any payment
         of Scheduled Payments means each January 2 and July 2 commencing
         January 2, 1997, until payment of all of the Scheduled Payments to be
         made under the Equipment Notes has been made.

                  (c)  The Final Legal Distribution Date is July 2, 2009.

                  (d) The Special Distribution Date with respect to a Special
         Payment shall be the date specified as such in the notice the Trustee
         must give with respect to such Special Payment pursuant to Section 
         4.02(c) of the Basic Agreement, which date shall be the date specified
         as the Special Distribution Date (as defined in the Intercreditor
         Agreement) with respect to the related Special Payment (as defined in
         the Intercreditor Agreement) in the applicable written notice given to
         the Trustee pursuant to Section 2.4(a) of the Intercreditor Agreement.

                  (e) (i) The Series 1996-1B Certificates shall be substantially
         in the form attached hereto as Exhibit A. Each purchaser of Series
         1996-1B Certificates will be deemed to represent that either (A) the
         assets of an employee benefit plan subject to Title I of the Employee
         Retirement Income Security Act of 1974, as amended ("ERISA"), or of a

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         plan subject to Section 4975 of the Internal Revenue Code of 1986, as
         amended (the "Code"), have not been used to purchase Series 1996-1B
         Certificates or (B) the purchase and holding of Series 1996-1B
         Certificates is exempt from the prohibited transaction restrictions of
         ERISA and the Code pursuant to Prohibited Transaction Class Exemption
         95-60 (promulgated under ERISA and the Code).

                        (ii)  The Series 1996-1B Certificates shall be Book-
         Entry Certificates.

                  (f)  The Scheduled Payments of principal shall be as
         set forth in Exhibit B.

                  (g) The proceeds of the Series 1996-1B Certificates shall be
         used to purchase the Series B Equipment Notes in the principal amount
         specified below:



         Equipment Note          Principal Amount               Maturity
         --------------          ----------------               --------
                                                        
            N624AW-B                 4,476,247                January 2, 2002
            N626AW-B                 4,476,246                July 2, 2002
            N631AW-B                 4,476,246                July 2, 2002
            N633AW-B                 4,533,177                January 2, 2008
            N634AW-B                 4,413,774                July 2, 2005
            N635AW-B                 4,413,774                July 2, 2005
            N636AW-B                 4,413,774                July 2, 2005
            N637AW-B                 4,413,774                July 2, 2005
             V0025-B                   503,996                January 2, 2006
             V0049-B                   503,996                January 2, 2006
             V0019-B                   503,996                January 2, 2006



                  (h) Each Owner Trustee, acting on behalf of its respective
         Owner Participant, will issue on a non-recourse basis, the Equipment
         Notes, the proceeds of which shall be used,among other things, to
         refinance the outstanding debt portion of the purchase price to such
         Owner Trustee of the following Equipment:    


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                                                  U.S. Registration
                                                Number/Manufacturer's
            Equipment                               Serial Number
            ---------                           ---------------------
                                             
         Airbus A320-231                              N624AW/55
         Airbus A320-231                              N626AW/65
         Airbus A320-231                              N631AW/77
         Airbus A320-231                              N633AW/82
         Airbus A320-231                             N634AW/091
         Airbus A320-231                             N635AW/092
         Airbus A320-231                             N636AW/098
         Airbus A320-231                             N637AW/099
            IAE V2500                                 NA/V0025
            IAE V2500                                 NA/V0049
            IAE V2500                                 NA/V0019



                  (i)  The related Note Documents are listed on
         Exhibit C.

                  (j) (i) The Trustee and the Other Trustees are parties to the
         Intercreditor Agreement which sets forth certain terms of subordination
         and other matters. The Series 1996-1B are junior in right of payment to
         the America West Airlines Pass Through Certificates, Series 1996-1A and
         senior in right of payment to the America West Airlines Pass Through
         Certificates, Series 1996-1C, the America West Airlines Pass Through
         Certificates, Series 1996-1D and the America West Airlines Pass Through
         Certificates, Series 1996-1E.

                           (ii) The holders of Series 1996-1B Certificates may
         purchase America West Airlines Pass Through Certificates, Series
         1996-1A and the Series 1996-1B Certificates may be purchased by the
         holders of certain series of Certificates with a lower seniority as
         provided in Article III hereof and as further set forth in Section 
         6.01(b) of the Basic Agreement.

                  (k) Notice of the termination of the Series 1996-1B Trust
         shall be mailed promptly by the Trustee to Certificateholders not
         earlier than the 60th day and not later than the 20th day next
         preceding such final distribution.


                         Series 1996-1B Trust Supplement
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                                   ARTICLE II

                                   DEFINITIONS

         Section 2.01. Definitions. For all purposes of the Basic Agreement as
supplemented by this Trust Supplement, the following capitalized term has the
following meaning:

         Intercreditor Agreement: Means the Intercreditor Agreement dated as of
the date hereof among the Trustee, the Other Trustees, the Liquidity Providers
named therein and Fleet National Bank, as Subordination Agent, as amended,
supplemented or otherwise modified from time to time in accordance with its
terms.

         Liquidity Facility: Means, initially, the Irrevocable Revolving Credit
Agreement dated as of November 26, 1996, between Fleet National Bank, as
Subordination Agent, as agent and trustee for the 1996-1B Trust, and Kredietbank
N.V., acting through its New York branch, and, from and after the replacement of
such Agreement pursuant hereto, the Replacement Liquidity Facility therefor, if
any, in each case as amended, supplemented or otherwise modified from time to
time in accordance with its terms.

         Other Agreements: Means (i) the Basic Agreement as supplemented by
Trust Supplement No. 1996-1A dated the date hereof relating to America West
Airlines 1996-1A Pass Through Trust, (ii) the Basic Agreement as supplemented by
Trust Supplement No. 1996-1C dated the date hereof relating to America West
Airlines 1996-1C Pass Through Trust, (iii) the Basic Agreement as supplemented
by Trust Supplement No.1996-1D dated the date hereof relating to America West
Airlines 1996-1D Pass Through Trust and (iv) the Basic Agreement as supplemented
by Trust Supplement No. 1996-1E dated the date hereof relating to America West
Airlines 1996-1E Pass Through Trust.

         Other Trustees: Means the trustee under the Other Agreements, and any
successor or other trustee appointed as provided therein.

         Plan Transferee: Means any Plan or other entity that is using the
assets of any Plan to purchase or hold its interest in a Series 1996-1B
Certificate. For purposes of this definition, a "Plan" means any employee
benefit plan subject to ERISA as well as any plan that is not subject to ERISA
but which is subject to Section 4975 of the Internal Revenue Code of 1986, as
amended.

         PTC Event of Default: Means the failure to pay within 10 Business Days
of the due date thereof: (i) the outstanding Pool Balance of the Series 1996-1B
Certificates on the Final Legal

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Distribution Date for such Certificates or (ii) interest due on such
Certificates on any Distribution Date (unless the Subordination Agent shall have
made an Interest Drawing (as defined in the Intercreditor Agreement) with
respect thereto in an amount sufficient to pay such interest and shall have
distributed such amount to the holders of the Certificates entitled thereto).

         Special Payment: Means any payment (other than a Scheduled Payment) in
respect of, or any proceeds of, any Equipment Note or Trust Indenture Estate (as
defined in each Indenture), including Overdue Scheduled Payments (as defined in
the Intercreditor Agreement), payments in respect of the redemption or
repurchase of any Equipment Note and payments in respect of the sale, of any
Equipment Note to the related Owner Trustee, Owner Participant or any other
Person.

         Trust Property: Means (i) the Equipment Notes held as the property of
the Trust and all monies at any time paid thereon and all monies due and to
become due thereunder, (ii) funds from time to time deposited in the Certificate
Account and the Special Payments Account, and (iii) all rights of the Trust and
the Trustee, on behalf of the Trust, under the Intercreditor Agreement and the
Liquidity Facility, including, without limitation, all rights to receive certain
payments thereunder, and all monies paid to the Trustee on behalf of the Trust
pursuant to the Intercreditor Agreement or the Liquidity Facility.

         Underwriter:  Means Morgan Stanley & Co. Incorporated,
Citicorp Securities, Inc., Lehman Brothers Inc. and Salomon
Brothers Inc.

                                   ARTICLE III

                      PURCHASE RIGHTS OF CERTIFICATEHOLDERS

         Section 3.01. (i) At any time after the occurrence and during the
continuation of a Triggering Event, each Certificateholder shall have the right
to purchase all, but not less than all, of the Class A Certificates upon ten
days' written notice to the Class A Trustee and each other Certificateholder,
provided that (A) if prior to the end of such ten day period any other
Certificateholder notifies such purchasing Certificateholder that such other
Certificateholder wants to participate in such purchase, then such other
Certificateholder may join with the purchasing Certificateholder to purchase
all, but not less than all, of the Class A Certificates pro rata based on the
outstanding principal amount of the Certificates held by each such
Certificateholder and (B) if prior to the end of such ten-day period any other
Certificateholder fails to notify the

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purchasing Certificateholder of such other Certificateholder's desire to
participate in such a purchase, then such other Certificateholder shall lose its
right to purchase the Class A Certificates pursuant to this Section and Section 
6.01(b) of the Basic Agreement.

    (ii) By acceptance of its Certificate, each Certificateholder agrees that at
any time after the occurrence and during the continuation of a Triggering Event,

                  (1) each Class C Certificateholder shall have the right (which
         shall not expire upon any purchase of the Class A Certificates pursuant
         to paragraph (i) above) to purchase all, but not less than all, of the
         Class A Certificates and the Series 1996-1B Certificates upon ten days'
         written notice to the Class A Trustee, the Trustee and each other Class
         C Certificateholder, provided that (A) if prior to the end of such
         ten-day period any other Class C Certificateholder notifies such
         purchasing Class C Certificateholder that such other Class C
         Certificateholder wants to participate in such purchase, then such
         other Class C Certificateholder may join with the purchasing Class C
         Certificateholder to purchase all, but not less than all, of the Class
         A Certificates and the Series 1996-1B Certificates pro rata based on
         the Fractional Undivided Interest in the Class C Trust held by each
         such Class C Certificateholder and (B) if prior to the end of such ten
         day period any other Class C Certificateholder fails to notify the
         purchasing Class C Certificateholder of such other Class C
         Certificateholder's desire to participate in such a purchase, then such
         other Class C Certificateholder shall lose its right to purchase the
         Class A Certificates and Series 1996-1B Certificates pursuant to this
         Section and Section 6.01(b) of the Basic Agreement; and

                  (2) each Class D Certificateholder shall have the right (which
         shall not expire upon any purchase of the Class A Certificates pursuant
         to paragraph (i) above or the purchase of the Class A Certificates and
         the Series 1996-1B Certificates pursuant to clause (ii)(1) above) to
         purchase all, but not less than all, of the Class A Certificates, the
         Series 1996-1B Certificates and the Class C Certificates upon ten days'
         written notice to the Class A Trustee, the Trustee, the Class C Trustee
         and each other Class D Certificateholder, provided that (A) if prior to
         the end of such ten-day period any other Class D Certificateholder
         notifies such purchasing Class D Certificateholder that such other
         Class D Certificateholder wants to participate in such purchase, then
         such other Class D Certificateholder may join with the purchasing
         Certificateholder to purchase all, but not less than all, of the Class
         A Certificates, the Series

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         1996-1B Certificates and the Class C Certificates pro rata based on the
         Fractional Undivided Interest in the Class D Trust held by each such
         Class D Certificateholder and (B) if prior to the end of such ten day
         period any other Class D Certificateholder fails to notify the
         purchasing Class D Certificateholder of such other Class D
         Certificateholder's desire to participate in such a purchase, then such
         other Class D Certificateholder shall lose its right to purchase the
         Class A Certificates, the Series 1996-1B Certificates, and the Class C
         Certificates pursuant to this Section and Section 6.01(b) of the Basic
         Agreement; and

                  (3) each Class E Certificateholder shall have the right (which
         shall not expire upon any purchase of the Class A Certificates pursuant
         to paragraph (i) above, the purchase of the Class A Certificates and
         the Series 1996-1B Certificates pursuant to clause (ii)(1) above or the
         purchase of the Class A Certificates, the Series 1996-1B Certificates
         and the Class C Certificates pursuant to clause (ii)(2) above) to
         purchase all, but not less than all, of the Class A Certificates, the
         Series 1996-1B Certificates, the Class C Certificates and the Class D
         Certificates upon ten days' written notice to the Class A Trustee, the
         Trustee, the Class C Trustee, the Class D Trustee and each other Class
         E Certificateholder, provided that (A) if prior to the end of such
         ten-day period any other Class E Certificateholder notifies such
         purchasing Class E Certificateholder that such other Class E
         Certificateholder wants to participate in such purchase, then such
         other Class E Certificateholder may join with the purchasing
         Certificateholder to purchase all, but not less than all, of the Class
         A Certificates, the Series 1996-1B Certificates, the Class C
         Certificates and the Class D Certificates pro rata based on the
         Fractional Undivided Interest in the Class E Trust held by each such
         Class E Certificateholder and (B) if prior to the end of such ten day
         period any other Class E Certificateholder fails to notify the
         purchasing Class E Certificateholder of such other Class E
         Certificateholder's desire to participate in such a purchase, then such
         other Class E Certificateholder shall lose its right to purchase the
         Class A Certificates, the Series 1996-1B Certificates, the Class C
         Certificates and the Class D Certificates pursuant to this Section and
         Section 6.01(b) of the Basic Agreement.

         As used in this Article III, the terms "Class A Certificate", "Class A
Trustee", "Class C Certificate", "Class C Certificateholder", "Class C Trust",
"Class C Trustee", "Class D Certificate", "Class D Certificateholder", "Class D
Trust", "Class D Trustee", "Class E Certificateholder" and "Class E

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Trust" shall have the respective meanings assigned to such terms in the
Intercreditor Agreement.

                                   ARTICLE IV

                                   THE TRUSTEE

                  Section 4.01. The Trustee. The Trustee is hereby directed to
execute and deliver the Intercreditor Agreement on or prior to the Issuance Date
in the form delivered to the Trustee by the Company. The Trustee shall not be
responsible in any manner whatsoever for or in respect of the validity or
sufficiency of this Trust Supplement or the due execution hereof by the Company,
or for or in respect of the recitals and statements contained herein, all of
which recitals and statements are made solely by the Company.

                  Except as herein otherwise provided, no duties,
responsibilities or liabilities are assumed, or shall be construed to be assumed
by the Trustee by reason of this Trust Supplement other than as set forth in the
Basic Agreement, and this Trust Supplement is executed and accepted on behalf of
the Trustee, subject to all the terms and conditions set forth in the Basic
Agreement, upon the effectiveness thereof, as fully to all intents as if the
same were herein set forth at length.

                  The Trustee represents and warrants that the Intercreditor
Agreement will be duly executed and delivered by one of its officers who is duly
authorized to execute and deliver such document on its behalf.

                                    ARTICLE V

                            MISCELLANEOUS PROVISIONS

         Section 5.01. Basic Agreement Ratified. Except and so far as herein
expressly provided, all of the provisions, terms and conditions of the Basic
Agreement are in all respects ratified and confirmed; and the Basic Agreement
and this Trust Supplement shall be taken, read and construed as one and the same
instrument.

         Section 5.02.  GOVERNING LAW.  THIS TRUST SUPPLEMENT AND THE SERIES 
1996-1B CERTIFICATES SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE 
LAWS OF THE STATE OF NEW YORK.

         Section 5.03. Execution in Counterparts. This Trust Supplement may be
executed in any number of counterparts, each of which shall be an original, but
such counterparts shall together constitute but one and the same instrument.


                         Series 1996-1B Trust Supplement
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         IN WITNESS WHEREOF, the Company and the Trustee have caused this Trust
Supplement to be duly executed by their respective officers thereto duly
authorized, as of the day and year first written above.

                                             AMERICA WEST AIRLINES, INC.

                                             By:__________________________

                                             Name:________________________

                                             Title:_______________________


                                             FLEET NATIONAL BANK,
                                               as Trustee

                                             By:__________________________

                                             Name:________________________

                                             Title:_______________________




                         Series 1996-1B Trust Supplement
   11
                                    EXHIBIT A
                               FORM OF CERTIFICATE

         [Include on each Certificate that is a Global Certificate: UNLESS THIS
CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST
COMPANY, A NEW YORK CORPORATION ("DTC"), TO THE ISSUER OR ITS AGENT FOR
REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS
REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN
AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR TO
SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY
TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON
IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST
HEREIN.](1)

BY ITS ACQUISITION HEREOF, THE HOLDER REPRESENTS THAT (A) IT IS NOT A PLAN
TRANSFEREE (AS DEFINED IN THE TRUST AGREEMENT) OR (B) IT IS AN INSURANCE COMPANY
USING THE ASSETS OF ITS GENERAL ACCOUNT TO ACQUIRE THIS CERTIFICATE, AND THE
CONDITIONS OF PROHIBITED TRANSACTION CLASS EXEMPTION 95-60 ISSUED BY THE U.S.
DEPARTMENT OF LABOR HAVE BEEN AND WILL CONTINUE TO BE SATISFIED IN CONNECTION
WITH ITS PURCHASE AND HOLDING OF THIS CERTIFICATE. THE TRUST AGREEMENT CONTAINS
A PROVISION REQUIRING THE TRUSTEE TO REFUSE TO REGISTER ANY TRANSFER OF THIS
CERTIFICATE IN VIOLATION OF THE FOREGOING RESTRICTIONS.

                AMERICA WEST AIRLINES PASS THROUGH TRUST 1996-1B
                            Pass Through Certificate,
                                 Series 1996-1B

                        Issuance Date: November 26, 1996

                   Final Legal Distribution Date: July 2, 2009

         Evidencing A Fractional Undivided Interest In the 1996-1B Trust, The
         Property Of Which Includes Certain Equipment Notes Each Secured By An
         Aircraft or Spare Engine Leased To America West Airlines, Inc.

Certificate No.___         $_____________ Fractional Undivided Interest
                           representing 0._ % of the Trust per $1,000 of
                           Reference Principal Amount

CUSIP No. 023654-AB2

                  THIS CERTIFIES THAT _________________________, for value
received, is the registered owner of a Fractional Undivided Interest in the
amount of $ ____________________(the "Reference Principal Amount") in the
America West Airlines Pass Through Trust 1996-1B (the "Trust") created by Fleet
National Bank, as trustee (the "Trustee"), pursuant to a Pass Through Trust
Agreement, dated as of November 26, 1996 (the "Basic Agreement"),
- --------
(1)      Not necessarily applicable in respect of one Certificate in
         definitive form.
   12
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between the Trustee and America West Airlines, Inc., a Delaware corporation (the
"Company"), as supplemented by Trust Supplement No. 1996-1B thereto, dated as of
November 26, 1996 (collectively, the "Agreement"), between the Trustee and the
Company, a summary of certain of the pertinent provisions of which is set forth
below. To the extent not otherwise defined herein, the capitalized terms used
herein have the meanings assigned to them in the Agreement. This Certificate is
one of the duly authorized Certificates designated as "America West Airlines
Pass Through Certificates, Series 1996-1B" (herein called the "Certificates").
This Certificate is issued under and is subject to the terms, provisions and
conditions of the Agreement and the Intercreditor Agreement, to which agreements
the Certificateholder of this Certificate by virtue of the acceptance hereof
assents and by which such Certificateholder is bound. The property of the Trust
includes certain Equipment Notes and all rights of the Trust to receive payments
under the Intercreditor Agreement and the Liquidity Facility (the "Trust
Property"). Each issue of the Equipment Notes is secured by a security interest
in the Equipment leased to the Company.

         Each of the Certificates represents a Fractional Undivided Interest in
the Trust and the Trust Property and has no rights, benefits or interest in
respect of any other separate trust established pursuant to the terms of the
Basic Agreement for any other series of certificates issued pursuant thereto.
The undivided percentage interest in the Trust represented by each of this
Certificate (as specified above) and the other America West Airlines Pass
Through Certificates, Series 1996-1B, was determined on the basis of (x) the
aggregate of the Reference Principal Amount of this Certificate (as specified
above) and of the other America West Airlines Pass Through Certificates, Series
1996-1B and (y) the aggregate original principal amounts of the Equipment Notes
constituting the Trust Property.

         Subject to and in accordance with the terms of the Agreement and the
Intercreditor Agreement, from funds then available to the Trustee, there will be
distributed on each January 2 and July 2 (a "Regular Distribution Date")
commencing January 2, 1997 to the Person in whose name this Certificate is
registered at the close of business on the 15th day preceding the Regular
Distribution Date, an amount in respect of the Scheduled Payments on the
Equipment Notes due on such Regular Distribution Date, the receipt of which has
been confirmed by the Trustee, equal to the product of the percentage interest
in the Trust evidenced by this Certificate and an amount equal to the sum of
such Scheduled Payments. Subject to and in accordance with the terms of the
Agreement, in the event that Special Payments on the Equipment Notes are
received by the Trustee, from funds then available to the Trustee, there shall
be distributed on the applicable Special Distribution Date, to the Person in
whose name this Certificate

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is registered at the close of business on the 15th day preceding the Special
Distribution Date, an amount in respect of such Special Payments on the
Equipment Notes, the receipt of which has been confirmed by the Trustee, equal
to the product of the percentage interest in the Trust evidenced by this
Certificate and an amount equal to the sum of such Special Payments so received.
If a Regular Distribution Date or Special Distribution Date is not a Business
Day, distribution shall be made on the immediately following Business Day with
the same force and effect as if made on such Regular Distribution Date or
Special Distribution Date and no interest shall accrue during the intervening
period. The Trustee shall mail notice of each Special Payment and the Special
Distribution Date therefor to the Certificateholder of this Certificate.

         Distributions on this Certificate will be made by the Trustee by check
mailed to the Person entitled thereto, without the presentation or surrender of
this Certificate or the making of any notation hereon. Except as otherwise
provided in the Agreement and notwithstanding the above, the final distribution
on this Certificate will be made after notice mailed by the Trustee of the
pendency of such distribution and only upon presentation and surrender of this
Certificate at the office or agency of the Trustee specified in such notice.

         The Certificates do not represent an obligation of, or an obligation
guaranteed by, or an interest in, the Company or the Trustee or any affiliate
thereof. The Certificates are limited in right of payment, all as more
specifically set forth herein and in the Agreement. All payments or
distributions made to Certificateholders under the Agreement shall be made only
from the Trust Property and only to the extent that the Trustee shall have
sufficient income or proceeds from the Trust Property to make such payments in
accordance with the terms of the Agreement. Each Certificateholder of this
Certificate, by its acceptance hereof, agrees that it will look solely to the
income and proceeds from the Trust Property to the extent available for
distribution to such Certificateholder as provided in the Agreement. This
Certificate does not purport to summarize the entire Agreement and reference is
made to the Agreement for information with respect to the interests, rights,
benefits, obligations, proceeds, and duties evidenced hereby. A copy of the
Agreement may be examined during normal business hours at the principal office
of the Trustee, and at such other places, if any, designated by the Trustee, by
any Certificateholder upon request.

         The Agreement permits, with certain exceptions therein provided, the
amendment thereof and the modification of the rights and obligations of the
Company and the rights of the Certificateholders under the Agreement at any time
by the Company

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and the Trustee with the consent of the Certificateholders holding Certificates
evidencing Fractional Undivided Interests aggregating not less than a majority
in interest in the Trust. Any such consent by the Certificateholder of this
Certificate shall be conclusive and binding on such Certificateholder and upon
all future Certificateholders of this Certificate and of any Certificate issued
upon the transfer hereof or in exchange hereof or in lieu hereof whether or not
notation of such consent is made upon this Certificate. The Agreement also
permits the amendment thereof, in certain limited circumstances, without the
consent of the Certificateholders of any of the Certificates.

         As provided in the Agreement and subject to certain limitations set
forth therein, the transfer of this Certificate is registrable in the Register
upon surrender of this Certificate for registration of transfer at the offices
or agencies maintained by the Trustee in its capacity as Registrar, or by any
successor Registrar, duly endorsed or accompanied by a written instrument of
transfer in form satisfactory to the Trustee and the Registrar, duly executed by
the Certificateholder hereof or such Certificateholder's attorney duly
authorized in writing, and thereupon one or more new Certificates of authorized
denominations evidencing the same aggregate Fractional Undivided Interest in the
Trust will be issued to the designated transferee or transferees.

         The Certificates are issuable only as registered Certificates without
coupons in denominations of $1,000 Fractional Undivided Interests and integral
multiples thereof, provided, that one Certificate may be in a different
denomination. As provided in the Agreement and subject to certain limitations
therein set forth, the Certificates are exchangeable for new Certificates of
authorized denominations evidencing the same aggregate Fractional Undivided
Interest in the Trust, as requested by the Certificateholder surrendering the
same.

         No service charge will be made for any such registration of transfer or
exchange, but the Trustee shall require payment of a sum sufficient to cover any
tax or governmental charge payable in connection therewith.

         The Trustee, the Registrar, and any agent of the Trustee or the
Registrar may treat the person in whose name this Certificate is registered as
the owner hereof for all purposes, and neither the Trustee, the Registrar, nor
any such agent shall be affected by any notice to the contrary.

         The obligations and responsibilities created by the Agreement and the
Trust created thereby shall terminate upon the distribution to
Certificateholders of all amounts required to be

                         Series 1996-1B Trust Supplement
   15
                                                                               5



distributed to them pursuant to the Agreement and the disposition of all
property held as part of the Trust Property.

         THE AGREEMENT AND THIS CERTIFICATE SHALL BE GOVERNED BY AND CONSTRUED
IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK WITHOUT GIVING EFFECT TO
THE CONFLICT OF LAWS PROVISIONS OF THE STATE OF NEW YORK.

         Unless the certificate of authentication hereon has been executed by
the Trustee, by manual signature, this Certificate shall not be entitled to any
benefit under the Agreement or be valid for any purpose.

                  IN WITNESS WHEREOF, the Trustee has caused this Certificate to
be duly executed.

                                            AMERICA WEST AIRLINES
                                                PASS THROUGH TRUST 1996-1B

                                            By:  FLEET NATIONAL BANK,
                                                       as Trustee

                                            By:___________________________

                                            Name:_________________________

                                            Title:________________________


Dated:  ______________


                         Series 1996-1B Trust Supplement
   16
              [FORM OF THE TRUSTEE'S CERTIFICATE OF AUTHENTICATION]

This is one of the Certificates referred to in the within-mentioned Agreement.

                                             FLEET NATIONAL BANK,
                                               as Trustee

                                             By:___________________________

                                             Name:_________________________

                                             Title:________________________



                         Series 1996-1B Trust Supplement

   17
                                    EXHIBIT B
                           REGULAR DISTRIBUTION DATES
                                       AND
                               SCHEDULED PAYMENTS



Regular Distribution Date    Scheduled Payment
- -------------------------    -----------------
                                  
January 2, 1997                  $         0
July 2, 1997                         359,249
January 2, 1998                      909,397
July 2, 1998                       1,980,551
January 2, 1999                    3,692,711
July 2, 1999                       2,735,705
January 2, 2000                    2,208,190
July 2, 2000                         395,705
January 2, 2001                            0
July 2, 2001                         395,708
January 2, 2002                    1,341,070
July 2, 2002                       6,310,591
January 2, 2003                            0
July 2, 2003                          31,497
January 2, 2004                            0
July 2, 2004                       3,446,800
January 2, 2005                    8,090,478
July 2, 2005                       3,190,972
January 2, 2006                      568,506
July 2, 2006                               0
January 2, 2007                            0
July 2, 2007                               0
January 2, 2008                    1,471,870



                         Series 1996-1B Trust Supplement
   18
                                    EXHIBIT C

                             Related Note Documents


                         Series 1996-1B Trust Supplement