Exhibit 2.2






                                                      Execution Version



                          DATED AS OF NOVEMBER 30, 2006



                                     BETWEEN

                           GATX FINANCIAL CORPORATION
                                    as Seller

                                       and

                       MACQUARIE AIRCRAFT LEASING LIMITED
                                    as Buyer

                        RELATING TO THE SALE AND PURCHASE

                                       of

                              THE GATX AIR BUSINESS

                   -------------------------------------------

                             SUPPLEMENTAL AGREEMENT

                   -------------------------------------------









SUPPLEMENTAL AGREEMENT dated as of November 30, 2006 between GATX Financial
Corporation, a Delaware corporation ("SELLER"), and Macquarie Aircraft Leasing
Limited, a company incorporated under the laws of the Republic of Ireland
("BUYER").

WITNESSETH:

WHEREAS, Seller and Buyer entered into that certain Sale and Purchase Agreement
dated as of September 28, 2006 (the "SALE AND PURCHASE AGREEMENT") relating to
the Business.

WHEREAS, Seller and Buyer wish to make certain amendments to the Sale and
Purchase Agreement and supplement certain of the agreements set forth in the
Sale and Purchase Agreement.

Accordingly, for good and valuable consideration, the receipt and sufficiency of
which is hereby acknowledged, Seller and Buyer agree as follows:


1.        DEFINITIONS

1.1       Definitions

          As used in this Supplemental Agreement (including the recitals hereto)
          and save as otherwise defined herein, terms defined in the Sale and
          Purchase Agreement shall bear the same respective meanings ascribed to
          them in the Sale and Purchase Agreement when used in this Supplemental
          Agreement.

1.2       Other Definitional and Interpretative Provisions

          Clause 1.2 of the Sale and Purchase Agreement is hereby deemed to be
          incorporated herein as if all references therein to "this Agreement"
          were references to this Supplemental Agreement.


2.        AMENDMENTS

          The Sale and Purchase Agreement is amended as follows:

2.1       The expression ", Jim Robinson" which appears in lines 4 and 5 of the
          definition ascribed to the term "Knowledge" in Clause 1.1 is deleted;

2.2       The following definitions are inserted in alphabetical order in Clause
          1.1:

          ""AERCAP" means AerCap B.V. or any of its Affiliates.

          ""EAST CONSENT" means the consent identified in paragraph 8 of
          Schedule 3."

          ""EXCEPTED WHOLLY OWNED ASSET OWNING ENTITIES" means together
          GATX/Caljet Corp., Huntsmen Corporation and GATX Air Leasing, Inc.,
          the respective details of which are set forth in Part 1 of Schedule 2
          (each an "EXCEPTED WHOLLY OWNED ASSET OWNING ENTITY")."

          ""OVERSEAS OFFICE LEASES" means together the lease agreement, business
          centre services agreement and deed of lease identified in paragraphs
          30, 31 and 32, respectively, of Part 2 of Schedule 5 (each an "
          OVERSEAS OFFICE LEASE")."

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2.3       The following expression is inserted in line 2 of Clause 2.1.2
          immediately following the term "except":

          "(a) as in the case of each Excepted Wholly Owned Asset Owning Entity
          as specified in Clause 2.1.3, and (b)".

2.4       The following provision is inserted as a new sub-clause numbered
          2.1.3:

          "Notwithstanding any other provision of this Agreement, the completion
          and sale of the Specified Ownership Interest in each Excepted Wholly
          Owned Asset Owning Entity shall take place only on the Deferred Date
          on which the Specified Ownership Interest in the Partnership Asset
          Owing Entity held by such Excepted Wholly Owned Asset Owning Entity is
          to take place in accordance with the terms of this Agreement."

2.5       The following expression is inserted in line 6 of Clause 2.10.2
          immediately following the expression ", as the case may be":

          ", provided that, in the case of the completion of the sale and
          purchase of any Remaining Ownership Interests on any Deferred Date
          which occurs on or prior to January 31, 2007 (or, in the event of the
          relevant sale and purchase not having occurred on or prior to such
          date as a direct result of the failure of Seller to use all reasonable
          expedition in having such sale and purchase completed on or prior to
          such date, any later date), Buyer's obligation hereunder to pay the
          relevant Deferred Date Allocated Amount shall be satisfied by Buyer
          paying to Seller such relevant Deferred Date Allocated Amount less the
          sum of all cash distributions made in the ordinary course of business
          by the relevant Partnership Aircraft Owning Entity to the JV members
          thereof after the Closing Date and prior to the earlier of (a) the
          relevant Deferred Date and (b) January 31, 2007 (or such later date as
          aforesaid) and received by Seller."

2.6       The following expression is inserted in line 4 of Clause 3 immediately
          following the term "document 23.01.02":

          "or Virtual Data Room document 23.01.03".

2.7       The first sentence of Clause 6.3 is deleted entirely and replaced with
          the following:

          "Buyer acknowledges and agrees that neither Buyer nor any Affiliate of
          Buyer shall as part of the transactions contemplated by this Agreement
          or as a consequence hereof acquire any rights to use the term "GATX"
          and agrees to cause the Transferred Employees, other than the Deferred
          Employees, to cease using the GATX name or any derivative thereof;
          provided, that, the Transferred Employees shall be permitted to use
          the GATX name or any derivate thereof for a period of sixty (60) days
          following the Closing Date in connection with ordinary course business
          meetings and correspondence (such as distributing business cards) so
          long as in doing so such Transferred Employees (i) clearly state that
          they are employees of Buyer and that they have no authority to act on
          behalf of Seller or any of its Affiliates and (ii) in no way take any
          actions that legally bind, or purport to legally bind, Seller or any
          of its Affiliates; and provided, further that, notwithstanding the
          foregoing provision, after the Closing Date, Buyer shall, and shall
          cause the Transferred Employees to, only use forms of leases, letters
          of intent,


                                      -2-




          agreements and similar legal documents that do not contain the GATX
          name or any derivative thereof, and which do not impose any liability
          on or otherwise obligate Seller or any of its Affiliates in any way."

2.8       The existing Clause 6.5 is deleted entirely and replaced with the
          following:

          "6.5 Moneys Received by Buyer Group with respect to Focused Air
          Aircraft after Closing

          If closing of the Focused Air Arrangements is delayed beyond the
          Closing Date (in whole or in part), Buyer will hold all:

          6.5.1     sale and/or rental proceeds received and retained by members
                    of Buyer Group with respect to Focused Air Aircraft on trust
                    for Seller and will pay such proceeds to Seller promptly
                    after receipt; and

          6.5.2     fees received and retained under the GATX/CL Air JV
                    Management Agreement by members of Buyer Group with respect
                    to the sale of a Focused Air Aircraft to AerCap on trust for
                    Seller and will pay such fees to Seller promptly after
                    receipt.

          For the avoidance of doubt, it is hereby agreed that all assets and
          amounts set forth in Clauses 6.5.1 and 6.5.2 (but no other moneys
          received by Buyer Group with respect to the Focused Air Aircraft) are
          not being purchased by Buyer are and shall remain the property of
          Seller (including for United States federal income tax purposes).

          If and to the extent Buyer or any of its Affiliates is obligated to
          make a payment to GATX/CL Air in respect of any Focused Air Aircraft
          as a result of Buyer or any such Affiliate being a JV Member (each
          such payment being a "CAPITAL CONTRIBUTION"), Seller shall reimburse
          the amount of such Capital Contribution to Buyer promptly after
          Buyer's first written demand."

2.9       The expression "date hereof" which appears in the final line of Clause
          6.6 is deleted and replaced by the expression "Closing Date".

2.10      The existing Clause 7.10 is deleted entirely and replaced with the
          following:

"7.10     Arrangements in relation to the ATA Aircraft

7.10.1    If the ATA Aircraft Financier consent referred to in #1 of Schedule 3
          is not obtained by the Closing Date, as soon as reasonably practicable
          following the Closing Date, (i) Seller will, subject to the same not
          constituting a Default (as such term is defined in the Leases to which
          the ATA is subject), transfer its Specified Ownership Interest in
          relation to the ATA Aircraft to an owner trust, and (ii) subject to
          Clause 10, Seller will sell and Buyer will buy Seller's Specified
          Ownership Interest in such owner trust at no additional consideration.

7.10.2    If pursuant to Clause 7.10.1 Buyer buys Seller's Specified Ownership
          Interest in the owner trust referred to in Clause 7.10.1 and Seller
          remains a guarantor under the guarantee given by Seller to the ATA
          Aircraft Financiers, Buyer shall promptly, but in any event within
          three (3) Business Days of receipt of notice from Seller that Buyer is


                                      -3-



          obligated to reimburse Seller pursuant to this Clause 7.10.2,
          reimburse to Seller any and all amounts Seller is required to pay
          under such guarantee, together with any expenses (including reasonable
          expenses of investigation and reasonable attorney's fees and expenses)
          incurred by Seller in connection therewith (it being understood and
          agreed that any disputes with respect to any such reimbursement shall
          be governed in accordance with the provisions of Clause 11.3).

2.11      The following provision is inserted as Clause 7.17:

          "7.17     Arrangements in relation to the Ex-Im 2001 Financings

          7.17.1    In the event of all consents of JV Members of any
                    Partnership Asset Owning Entity which is a participant in
                    any Ex-Im 2001 Financing required for the sale and purchase
                    of the Specified Ownership Interest in such Partnership
                    Asset Owning Entity pursuant to this Agreement being
                    obtained prior to all the consents of the Ex-Im 2001
                    Financiers and the accomplishment of the actions identified
                    in paragraph 2 of Schedule 3 in relation to the relevant
                    Ex-Im 2001 Financing being obtained or taken, as the case
                    may be, subject to Clause 10, the sale and purchase of such
                    Specified Ownership Interest will be effected on the third
                    (3rd.) Business Day (or such later date as may be agreed
                    between Seller and Buyer) following the date on which all
                    such consents have been obtained.

          7.17.2    So long as Seller remains a guarantor under any of the
                    guarantees given by Seller in connection with any of the
                    Ex-Im 2001 Financing Documents, Buyer shall promptly, but in
                    any event within three (3) Business Days of receipt of
                    notice from Seller that Buyer is obligated to reimburse
                    Seller pursuant to this Clause 7.17.3, reimburse to Seller
                    any and all amounts Seller is following the Closing Date
                    required to pay under such guarantees (or any of them),
                    together with any expenses (including reasonable expenses of
                    investigation and reasonable attorney's fees and expenses)
                    incurred by Seller in connection therewith (it being
                    understood and agreed that any disputes with respect to any
                    such reimbursement shall be governed in accordance with the
                    provisions of Clause 11.3). In the event that Seller remains
                    as such a guarantor as of the expiration of the second
                    anniversary of the Closing Date, Buyer shall within the
                    thirty (30) day period commencing on the such anniversary
                    procure that (a) all GATX Retained Entity Obligations under
                    all the Ex-Im 2001 Financing Documents are released, or (b)
                    letters of credit are issued by Macquarie Bank Limited, or
                    another bank with a credit rating not less than the credit
                    rating then held by Macquarie Bank Limited and otherwise
                    reasonably acceptable to Seller, in the respective
                    percentages of the principal amount from time to time of
                    each loan guaranteed by Ex-Im Bank under any of the Ex-Im
                    2001 Financing Documents to the extent that the same is a
                    "full recourse" obligation of Seller under its guarantee
                    issued in relation to such loan each of which letter of
                    credit is by its terms to remain in effect so long as Seller
                    continues to have liability under the relevant such
                    guarantee and to be able to be drawn at any time by Seller
                    in the event of Buyer failing to make any related payment
                    mentioned in this Clause 7.17.2 in the amount which Buyer
                    has so failed to pay.


                                      -4-



          7.10.3    Buyer shall not purchase or procure the purchase of all of
                    the Ownership Interests in any of the 737 Partners, unless
                    prior thereto, or concurrently therewith, all GATX Retained
                    Entity Obligations under all the related Ex-Im 2001
                    Financing Documents have been released.

2.12      The following provision is inserted as Clause 7.18:

          7.18      Arrangements in relation to the Office Leases

          7.18.1    Buyer acknowledges that all of the Liabilities of the
                    relevant GATX Retained Entity under each of the Overseas
                    Office Leases are Assumed Liabilities and that Buyer shall
                    promptly, but in any event within three (3) Business Days of
                    receipt of notice from Seller that the relevant GATX
                    Retained Entity has had to make any payment in respect of
                    any such Liability with details of such payment, Buyer is
                    obligated to reimburse Seller (either on its own behalf or
                    on behalf of the relevant other GATX Retained Entity), such
                    amount so paid by the relevant GATX Retained Entity,
                    together with any expenses (including reasonable expenses of
                    investigation and reasonable attorney's fees and expenses)
                    incurred by Seller or the relevant other GATX Retained
                    Entity in connection therewith (it being understood and
                    agreed that any disputes with respect to any such
                    reimbursement shall be governed in accordance with the
                    provisions of Clause 11.3).

          7.18.2    Buyer shall, no later than December 31, 2006, give notice to
                    Seller as to whether it desires that Seller gives, or
                    procures that there is given, notice terminating the
                    Overseas Office Leases in relation to the offices in
                    Toulouse and Tokyo. In the event of Buyer notifying Seller
                    that either or both such Overseas Office Leases should be
                    terminated or failing to give any such notice by January 1,
                    2007, Seller shall promptly (but in any event within ten
                    (10) Business Days of the relevant notice being given to
                    Seller), give, or procure that there is given, notice of
                    such termination to be effective at the earliest date
                    possible pursuant to the terms of the relevant Overseas
                    Office Lease.

2.13      The following expression is inserted in line 1 of Clause 10.5.3
          immediately following the expression "Schedule 3":

          "(other than the EAST Consent")",

          it being agreed for the avoidance of doubt that such amendment is made
          without any consequential effect on the obligations of the parties
          under Clause 7.1.1 of the Sale and Purchase Agreement.

2.14      The existing Clause 11.2.2 is deleted entirely and replaced with the
          following:

          "Buyer hereby indemnifies Seller and its Affiliates against and agrees
          to hold each of them harmless from any and all Damages actually
          suffered by Seller or any of its Affiliates and their respective
          officers, directors, employees, successors and permitted assigns in
          connection with, arising out of or resulting from (i) any breach of
          the representations and warranties of Buyer, (ii) any breach of or
          failure to comply with any


                                      -5-

          covenant or agreement made or to be performed by Buyer pursuant to
          this Agreement, (iii) any Assumed Liability, (iv) the ownership by
          Seller or its Affiliates of the Transferred Specified Ownership
          Interests, or (v) Buyer's offer of employment (including the content
          of such offer of employment) or failure to offer employment to any
          U.S. Employee or group of U.S. Employees; provided, that (a) Buyer
          shall not indemnify Seller or its Affiliates for any Damages pursuant
          to this item (v) to the extent arising out of actions taken or not
          taken by Seller or any of its Affiliates not related to any decision
          by Buyer to make and/or to not make an offer of employment to any such
          U.S. Employee and (b) in no event shall Buyer or any of its Affiliates
          be responsible in connection with, or be required to provide any
          indemnity hereunder in connection with, any Retained Liabilities.".

2.15      The term "of" which appears in the first line of Clause 11.8 is
          deleted and replaced by the following expression:

          "commencing on the earlier of (a) the date on which the insurances
          hereinafter described in this Clause 11.8 are effected and (b)
          April 1, 2007 and ending on the date occurring".

2.16      The following expression is inserted as an additional sentence at the
          send of Clause 12.2:

          "It is hereby confirmed for the avoidance of doubt that each of
          Seller's rights of termination under Clause 12.1 is available for
          exercise only prior to the Closing."


3. MISCELLANEOUS

3.1       The provisions of Clauses 13.1, 13.2, 13.3, 13.4, 13.5, 13.6, 13.8 and
          13.10 are hereby deemed to be incorporated herein as if all references
          therein to "this Agreement" were references to this Supplemental
          Agreement.

3.2       References to "this Agreement" in the Sale and Purchase Agreement are
          deemed to be references to the Sale and Purchase Agreement as amended
          by this Supplemental Agreement.



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



Seller

GATX FINANCIAL CORPORATION

By:              /s/ Robert C. Lyons
    --------------------------------------------
    Name:    Robert C. Lyons
             Vice President and Chief
    Title:   Financial Officer



Buyer

MACQUARIE AIRCRAFT LEASING
LIMITED

By:             /s/ Stephen Cook
    --------------------------------------------
    Name:     Stephen Cook
    Title:    Attorney in Fact

    --------------------------------------------