Exhibit 10.1
 Extension Letter
 To:

    the Addressees listed in Schedule 2
   Facility Agreement dated 18 May 2004 relating to the financing of certain Airbus aircraft
 1.
    
    We refer to an aircraft facility agreement dated 18 May 2004 (as amended from time to time)
between the banks and financial institutions named therein (as lenders), Bank of Scotland plc,
London Branch (as lead manager, security trustee and agent), Bank of Scotland plc, Frankfurt
Branch (as lead manager), Bank of Scotland plc, Paris Branch (as lead manager), Whitney
Leasing Limited (as borrower), Aircraft SPC-12, Inc. (as borrower parent) and International
Lease Finance Corporation (as guarantor and subordinated lender) (the Facility Agreement).2.
    
    Save as otherwise provided herein, words and expressions used in this extension letter shall
have the same meaning ascribed to them in the Facility Agreement.3.
    
    The Borrower, the Borrower Parent and the Guarantor have requested that the Availability
Period be extended and that certain further amendments (as more particularly described below)
are made to the terms of the Facility Agreement. The Agent (for and on behalf of itself and
the Lenders), the Security Trustee, the Lead Managers and the Original Lender will consent to
this request upon and subject to the terms of this extension letter.4.
    
    Each of the parties hereto hereby agrees that with effect from the date hereof:
 (a)
    
    the Availability Period is extended to cover the period up to and including 30
June 2010; and(b)
    
    Clause 2.1 (as previously amended) shall be further amended by deleting the
existing sub-paragraph (z) contained therein (which reads (z) three billion six
hundred and forty three million, six hundred and sixty thousand Dollars
(US$3,643,660,000.00)) and replacing the same with a new sub-paragraph (z) reading as
follows:..(z) four billion, six hundred and forty three million, six hundred and sixty
thousand Dollars (US$4,643,660,000.00); and..(c)
    
    the list of Eligible Aircraft set out in Schedule 5 Part A of the Facility
Agreement shall be replaced by the list of aircraft set out in Schedule 1 hereto. All
references to Eligible Aircraft in the Facility Agreement shall henceforth be treated
as a reference to Schedule 1 hereto and the Facility Agreement shall be read and
construed accordingly;
 5.
    
    Each of the Borrower, the Borrower Parent and the Guarantor hereby repeats the
representations and warranties set out in Clause 6.1 and Clause 6.2 of the Facility Agreement,
to the extent relevant to each party.




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6.
    
    Save as specified herein, the terms and conditions of the Facility Agreement shall continue
in full force and effect.7.
    
    A person who is not a party to this extension letter shall have no rights under the Contracts
(Rights of Third Parties) Act 1999.8.
    
    This extension letter shall be governed by and construed in accordance with English law.9.
    
    The provisions of Clause 23.2 to Clause 23.6 inclusive of the Facility Agreement are hereby
incorporated into this extension letter mutatis mutandis,with all references therein to this
Agreement being treated as a reference to this extension letter.
  /s/ Pamela S. HendryWHITNEY LEASING LIMITED/s/ Pamela S. HendryAIRCRAFT SPC-12, INC./s/ Pamela S. HendryINTERNATIONAL LEASE FINANCE CORPORATION -2-




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The Agent
 /s/ Mike GearBANK OF SCOTLAND PLCThe Security Trustee/s/ Mike GearBANK OF SCOTLAND PLCThe British Lead Manager/s/ Mike GearBANK OF SCOTLAND PLC, LONDON BRANCHThe French Lead Manager/s/ Mike GearBANK OF SCOTLAND PLC, PARIS BRANCHThe German Lead Manager/s/ Mike GearBANK OF SCOTLAND PLC, FRANKFURT BRANCH The Original Lender
 -3-




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/s/ Mike GearBANK OF SCOTLAND PLC -4-




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SCHEDULE 1
 Details of Proposed Aircraft and Proposed Aircraft Delivery Schedule
 DELIVERY
    
    ENGINENO.
    
    MODEL
    
    DATE
    
    MODEL
    
    OPERATOR1
    
    A320-214
    
    7-May-09
    
    CFM56-5B4/3
    
    *2
    
    A319-100
    
    11-May-09
    
    V2527M-A5
    
    *3
    
    A320-214
    
    14-May-09
    
    CFM56-5B4/3
    
    *4
    
    A320-200
    
    19-May-09
    
    CFM56-5B4/3
    
    *5
    
    A319-132
    
    20-May-09
    
    V2524-A5
    
    *6
    
    A330-243
    
    26-May-09
    
    TRENT 772B-60
    
    *7
    
    A321-211
    
    29-May-09
    
    CFM56-5B3/3
    
    *8
    
    A321-231
    
    30-Jun-09
    
    V2533-A5
    
    *9
    
    A321-231
    
    1-Jul-09
    
    V2533-A5
    
    *10
    
    A330-243
    
    1-Jul-09
    
    TRENT 772C-60
    
    *11
    
    A320-200
    
    1-Nov-09
    
    CFM56-5B4/3
    
    *12
    
    A321-231
    
    1-Nov-09
    
    V2533-A5
    
    *13.
    
    A321-200
    
    1-Dec-09
    
    V2533-A5
    
    *14
    
    A319-100
    
    1-Apr-10
    
    CFM56-5B6/3
    
    *15.
    
    A320-200
    
    1-May-10
    
    CFM56-5B4/3
    
    *16.
    
    A321-200
    
    1-May-10
    
    V2533-A5
    
    *17
    
    A321-200
    
    1-May-10
    
    CFM56-5B4/3
    
    *18
    
    A321-200
    
    1-Jun-10
    
    CFM56-5B4/3
    
    *
 
 *
    
    Indicates that certain information contained herein has been omitted and filed separately with the Securities and
Exchange Commission. Confidential treatment has been requested with respect to the omitted portions. -5-




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SCHEDULE 2
 Addressees
 1
    
    Bank of Scotland plc (acting in its capacity as Agent for and on behalf of the Lenders (each
as defined in the Facility Agreement),2
    
    Bank of Scotland plc (acting in its capacity as Security Trustee for and on behalf of itself,
the Lead Managers and the Lenders (each as defined in the Facility Agreement),3
    
    Bank of Scotland plc, London Branch (acting in its capacity as British Lead Manager (as
defined in the Facility Agreement),4
    
    Bank of Scotland plc, Paris Branch (acting in its capacity as French Lead Manager (as defined
in the Facility Agreement),5
    
    Bank of Scotland plc, Frankfurt Branch (acting in its capacity as German Lead Manager (as
defined in the Facility Agreement), and6
    
    Bank of Scotland plc (acting in its capacity as Original Lender (as defined in the Facility
Agreement)
 -6-