Document:

TRANS WORLD AIRLINES, INC.
One City Centre
515 North 6th Street
St. Louis, Missouri  63101
Facsimile:  (314) 589-3461
Phone:  (314) 589-3000

                                                                   April 9, 2001

TO THE PERSONS LISTED ON SCHEDULE A ATTACHED HERETO:

                 ASSIGNMENT, ASSUMPTION AND AMENDMENT AGREEMENT

Ladies and Gentlemen:

         American Airlines, Inc., a Delaware corporation ("AMERICAN"), and Trans
World Airlines, Inc., a Delaware corporation (together with any predecessors or
affiliates, "TWA"), have entered into an Asset Purchase Agreement (as amended
from time to time, the "ASSET PURCHASE AGREEMENT"), dated as of January 9, 2001,
pursuant to which American has agreed with TWA, subject to certain terms and
conditions, to enter into a leasing transaction at the Commencement Time (as
defined below) with respect to the aircraft (the "AIRCRAFT") specified in
Schedule A attached hereto. One such condition is that this Agreement shall have
been entered into. All capitalized terms used but not defined herein shall have
the respective meanings given them in Appendix A hereto. This Assignment,
Assumption and Amendment Agreement, together with all annexes, schedules and
other attachments hereto, is referred to collectively as this "AGREEMENT".

         The person listed on Schedule A hereto as lessor (the "LESSOR") has
agreed to lease the Aircraft to TWA Airlines LLC, a wholly-owned subsidiary of
American (the "LESSEE") (such leasing transaction, the "Transaction"). The
Transaction has the terms (the "TRANSACTION TERMS") separately agreed by
American and each other person who is a party to, or who has consented to, an
Assumption and Lease Agreement (as may be amended, modified or assigned from
time to time, the "ASSUMPTION AND LEASE AGREEMENT") relating to the Aircraft
and, if entered into, more extensive leasing documents incorporating all of the
Transaction Terms (such leasing documents, the "SUBSTITUTE TRANSACTION
DOCUMENTS").

         TWA and the other parties hereto (such other parties other than
American and the Lessee, the "EXISTING TWA PARTIES") hereby agree as follows:

SECTION 1.   AMENDMENT, ASSIGNMENT AND ASSUMPTION.

         (a) Effective immediately prior to the Commencement Time, subject to
the occurrence of the Commencement Time, the Existing TWA Parties hereby amend
and restate and, to the extent necessary, terminate, effective at the
Commencement Time, each TWA Lease Document, such that the terms and conditions
of the TWA Lease Documents are replaced, deleted and superseded in their
entirety by the Assumption and Lease Agreement; PROVIDED, HOWEVER, that the TWA
Trust Agreement, if any, and the

<PAGE>

TWA Purchase Agreement Assignment, if any, listed in Schedule B shall not be so
amended and restated or terminated, but shall only be amended to the extent
necessary to make their respective terms consistent with the Transaction Terms.

         (b) Effective at the Commencement Time, subject to the occurrence of
the Commencement Time, TWA hereby assigns to the Lessee all of the rights of the
"Lessee" under the TWA Lease Documents, as amended, restated and/or terminated
as provided herein and the Lessee hereby assumes all of the obligations of TWA
under the TWA Lease Documents, as so amended, restated and/or terminated;
PROVIDED that (A) neither American nor the Lessee will have any responsibility
or liability for any act or omission of TWA at any time or for any act, claim,
event, circumstance or condition existing, accruing, arising or occurring at any
time at or prior to the Commencement Time (any of the foregoing, a "PRIOR
CLAIM"); (B) neither American nor the Lessee assumes or agrees to pay, satisfy,
discharge or perform, and will not be deemed for any reason whatsoever to have
assumed, or agreed to pay, satisfy, discharge or perform, any liability,
obligation or indebtedness of TWA with respect to the Aircraft, Airframe or
Engines, or otherwise, whether primary or secondary, direct or indirect,
including without limitation any and all liabilities and obligations of TWA
resulting from, caused by or arising out of, directly or indirectly, any act or
omission of TWA, the conduct of its business or ownership or lease of any of its
properties or assets (including the Aircraft) or any properties or assets used
by TWA at any time, including without limitation such of the foregoing as
constitute, may constitute or are alleged to constitute a tort, breach of
contract or violation of requirements of any law; (C) neither American nor the
Lessee will be responsible for any rental or other payments arising or accruing
at any time at or prior to, or in respect of any period at or prior to, the
Commencement Time, even if the payment date therefor under the TWA Lease
Documents would have occurred after the Commencement Time; and (D) neither
American nor the Lessee shall have any liability for any Prior Claim that
results or arises from the execution or performance of this Agreement, the
Assumption and Lease Agreement or any Substitute Transaction Document.

         (c) Each of the Lessor and the Owner Participant, if any, hereby
consents to the assignment and assumption contained in paragraph (b) of this
Section 1.

         (d) Each Lessor Party agrees that, effective at (and subject to the
occurrence of) the Commencement Time, such Lessor Party waives any right and
relinquishes any claim it may have against TWA or against any collateral
securing any such claim with respect to any difference between its rights,
including the amounts to be received, hereunder and its rights, including the
amounts that would be received, under the TWA Lease Documents prior to their
amendment or that arises out of the amendment effected hereby. It is understood
that the Lessor Parties do not, under this Agreement, waive (i) the right they
may have to receive payment from TWA of amounts owed by TWA under the TWA Lease
Documents at any time prior to the Commencement Time or

                                       2

<PAGE>

(ii) any rights or remedies they may have against TWA with respect to events or
circumstances arising or occurring before the Commencement Time (including
rights or remedies arising under Section 1110 of the Bankruptcy Code (11 U.S.C.
ss. 1110) or with respect to Retained Liabilities (as defined in the Asset
Purchase Agreement)). Each Lessor Party acknowledges that it has no right or
claim against American, the Lessee or any of American's other affiliates with
respect to any of the foregoing.

         (e) At or prior to the Commencement Time, the parties will execute and
deliver such additional documents as may be necessary or appropriate to be filed
for recordation with the FAA to consummate the transaction contemplated hereby.

SECTION 2.   LIMITATION ON TWA LIABILITY OTHER THAN RETAINED LIABILITIES.

         Notwithstanding any provision to the contrary in the Transaction Terms,
the Assumption and Lease Agreement, or this Agreement, TWA shall not have any
liability after the Commencement Time other than Retained Liabilities (as
defined in the Asset Purchase Agreement).

SECTION 3.   INSTRUCTION.

         If Schedule A lists an owner participant (the "OWNER PARTICIPANT"), the
Owner Participant hereby authorizes and directs the Lessor to execute and
deliver this Agreement.

         Unless otherwise expressly specified or permitted by the terms hereof,
all notices required or permitted under the terms and provisions hereof shall be
in English and in writing, and any such notice may be given by U.S. mail,
courier service, telegram, cable or facsimile (confirmed by telephone or in
writing in the case of notice by telegram, cable or facsimile) or any other
customary means of communication, and any such notice shall be effective when
delivered to the recipient thereof in accordance with the provisions of this
Section, (i) if to TWA, American or the Lessee, to its respective address
(including facsimile number) set forth below its signature at the foot of this
Agreement, or (ii) if to any other party hereto, to its respective address set
forth on Schedule A to this Agreement.

SECTION 4.   SEPARATE COUNTERPARTS.

         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).
Any counterpart may be executed by facsimile signature and such facsimile
signature shall be deemed an original. 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.

                                       3

<PAGE>

SECTION 5.   ENTIRE AGREEMENT.

         This Agreement, including all the schedules, exhibits and annexes
hereto, the Assignment, Assumption and Amendment Agreement (when executed and
delivered) and the Substitute Transaction Documents (when executed and
delivered) constitute the entire agreement and supersede all prior agreements
and understandings, both written and oral, between the parties with respect to
the subject matter hereof.

SECTION 6.   HEADINGS.

         The headings of the various sections herein are for convenience of
reference only and shall not define or limit any of the terms or provisions
hereof.

SECTION 7.   BINDING EFFECT.

         This Agreement shall be binding upon and inure to the benefit of the
parties hereto and their respective heirs, successors and permitted assigns and
no other person.

SECTION 8.   AMENDMENTS.

         The provisions of this Agreement may be modified or amended only by an
instrument or instruments in writing signed by each party hereto and consented
to by American.

SECTION 9.   GOVERNING LAW.

         THIS AGREEMENT IS BEING DELIVERED IN THE STATE OF NEW YORK AND SHALL IN
ALL RESPECTS, INCLUDING ALL MATTERS OF CONSTRUCTION, VALIDITY AND PERFORMANCE,
BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAW OF THE STATE OF NEW
YORK AS APPLIED TO CONTRACTS MADE AND PERFORMED WITHIN THE STATE OF NEW YORK.

                                       4

<PAGE>

                  The parties hereto have signed this Agreement as of the date
first written above.

                                       Sincerely yours,

                                       TRANS WORLD AIRLINES, INC.

                                       By:________________________
                                          Name:
                                          Title:
                                          Address:

                                       5

<PAGE>

ACKNOWLEDGED AND AGREED

AMERICAN AIRLINES, INC.

By:___________________________________
   Name:
   Title:
   Address: 4333 Amon Carter Boulevard
            Mail Drop 5662
            Ft. Worth, Texas 76155
            Attn:  Treasurer
            Fax: (817) 967-4318
            Tel:  (817) 963-1234

                                       6

<PAGE>

TWA AIRLINES, LLC

By:___________________________________
   Name:
   Title:
   Address: One City Center
            515 North Sixth Street
            St. Louis, Missouri 63101
            Attn:  R. Stan Anderson
            Chief Operating Officer and
              Senior Vice President of
              Operations
            Fax:  (314) 589-3193
            Tel:   (314) 589-3265

                                       7

<PAGE>

LESSOR/OWNER TRUSTEE

FIRST SECURITY BANK, NATIONAL ASSOCIATION,
not in its individual capacity except as otherwise stated herein,
BUT solely as Owner Trustee

By:___________________________________
   Name:
   Title:

                                       8

<PAGE>

OWNER PARTICIPANT

AIRLEASE, LTD., a California limited partnership
By:      AIRLEASE MANAGEMENT SERVICES, INC.,
         its general partner

By:___________________________________
   Name:
   Title:

                                       9

<PAGE>

                                                                      SCHEDULE A

                           AIRCRAFT AND LESSOR PARTIES

AIRCRAFT

U.S. Registration Number:              N913TW

Manufacturer Serial Number:            49184

Engine Numbers:                        Nos. P709733D and P709734D

LESSOR PARTIES

Lessor/Owner Trustee:                  First Security Bank, National Association

Address:                               Corporate Trust Services
                                       MAC: U1254-031
                                       79 South Main Street, 3rd Floor
                                       Salt Lake City, Utah 84111
                                       Attn: Nancy Dahl

Facsimile:                             (801) 246-5053

Phone:                                 (801) 246-5208

Owner Participant:                     Airlease, Ltd.

Address:                               c/o Bank of America Leasing and Capital
                                       Group CA57050403
                                       555 California Street, 4th Floor
                                       San Francisco, CA 94104
                                       Attn: David Gebler

Facsimile:                             (415) 765-1817

Phone:                                 (415) 765-1824

<PAGE>

 TWA LEASE DOCUMENTS PARTIES

 Mortgagee/Indenture Trustee:          N/A

 Address:

 Facsimile:

 Phone:

 Owner Participant Guarantor:          N/A

 Address:

 Facsimile:

 Phone:

 Loan Participant/Lender:              The Provident Bank

 Address:                              One East Fourth Street
                                       Cincinnati, Ohio 45202
                                       Attn: Forest C. Frank

 Facsimile:                            (513) 579-2868

 Phone:                                (513) 579-2862

 Lessee:                               Trans World Airlines, Inc.

 Address:                              515 North 6th Street, 18th Floor
                                       St. Louis, MO 63101

 Facsimile:                            (314) 589-3267

 Phone:                                (314) 589-3227

                                       2

<PAGE>

Other:                                 Bank of America Leasing and Capital Group

Address:                               CA57050403
                                       555 California St., 4th Floor
                                       San Francisco, CA 94104
                                       Attn: David Gebler

 Facsimile:                            (415) 765-1817

 Phone:                                (415) 765-1824

                                       3

<PAGE>

                                                                      SCHEDULE B
                               TWA LEASE DOCUMENTS

Lease dated March 15, 1984 between Trans World Airlines, Inc. and DC-9T-III,
Inc.

Lease Supplement No. 1 dated March 22, 1984 between Trans World Airlines, Inc.
and DC-9T-III, Inc.

Amendment Agreement dated December 15, 1986 between Trans World Airlines, Inc.
and DC-9T-III, Inc.

Participation Agreement dated March 15, 1984 between Trans World Airlines, Inc.
and DC-9T-III, Inc.

Assignment and Assumption Agreement dated August 16, 1988 between DC-9T-III,
Inc. and Trust Company for USL, Inc.

Agreement of Assignment and Assumption dated March 31, 1988 between DC-9T-III,
Inc. and Merdian Trust Company

Assignment and Assumption Agreement dated July 19, 1988 between Meridian Trust
Company and DC-9T-III, Inc.

Resignation of Trustee; Appointment of Successor Trustee; Assignment and
Assumption Agreement; and Amendment to Note Purchase Agreement and Security
Agreement (N913TW) dated May 15, 1997 between the Taurus Trust Company, Inc.
formerly known as Trust Company for USL, Inc., First Security Bank, National
Association, Airlease Ltd and The Provident Bank

Note Purchase and Security Agreement dated January 29, 1997 between The
Provident Bank and First Security Bank, National Association, formerly known as
Trust Company for USL, Inc. and the Taurus Trust Company.

Letter Agreement dated April 1, 1991 between United States Airlease, Inc. and
Trans World Airlines, Inc.

Letter Agreement dated March 23, 1995 between Trans World Airlines, Inc. and
Trust Company for USL, Inc.

Letter Agreement dated March 23, 1995 between Trans World Airlines, Inc. and USL
Capital Corporation

<PAGE>

Estoppel Certificate dated January 1997 by Trans Word Airlines Inc. for benefit
of Airlease Ltd., Taurus Trust Company (formerly Trust Company for USL, Inc.)
and The Provident Bank

Agreement to Manufacture and Lease dated October 29, 1982 between Trans World
Airlines and McDonnell Douglas Corporation

Letter Agreement dated March 15, 1984

Guaranty dated March 15, 1984 by UT Credit Corporation in favor of Trans World
Airlines, Inc.

                                       2

<PAGE>

                                                                      APPENDIX A

                                  DEFINITIONS

         "COMMENCEMENT TIME" means the time on the Closing Date when (i) TWA,
American and the Lessor Parties shall have executed and delivered the
Assignment, Assumption and Amendment Agreement and (ii) the closing under the
Asset Purchase Agreement shall have occurred.

         "FAA" means the Federal Aviation Administration of the U.S. and any
successor governmental authority.

         "TWA LEASE DOCUMENTS" means all leases, mortgages, loan agreements,
notes, indentures, trust agreements, participation agreements, purchase
agreement assignments, security agreements, letter agreements and all other
agreements with respect to the Aircraft, in each case, to which TWA is a party
or by which TWA is bound or by which TWA's rights are affected, including,
without limitation, the documents listed in Schedule B hereto but excluding any
purchase agreement with a manufacturer of the Aircraft, the Engines (as defined
in the Assumption and Lease Agreement) or any Parts (as defined in the
Assumption and Lease Agreement).

<PAGE>

                          AMENDMENT TO LEASE AGREEMENT

         AMENDMENT TO LEASE AGREEMENT, dated as of April 9, 2001 (this
"AMENDMENT"), between AIRLEASE, LTD., a California limited partnership (the
"LESSOR"), and TRANS WORLD AIRLINES, INC., a Delaware corporation (the
"Lessee").

                                     RECITAL

         Lessor and Lessee have entered into the Lease Agreement described in
Appendix A attached hereto, as amended, supplemented or assigned by the
amendments, supplements and assignments, if any, thereto described in Appendix A
attached hereto (such Lease Agreement, as so amended, supplemented or assigned,
the "LEASE"), covering the airframe and engines described in Appendix A attached
hereto (the "AIRFRAME" and the "ENGINES", respectively; the Airframe and
Engines, together, the "AIRCRAFT").

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

         1. Effective immediately prior to the time and day specified in
Appendix A attached hereto, the Lease is hereby amended and restated in its
entirety, the terms and conditions of the Lease being replaced and superseded in
their entirety by this Amendment and Appendix B attached hereto.

         2. Lessor hereby leases to Lessee, and Lessee hereby leases from
Lessor, the Aircraft on the terms and conditions specified in this Amendment and
Appendix B attached hereto.

         3. THIS AMENDMENT IS BEING DELIVERED IN THE STATE OF NEW YORK AND SHALL
IN ALL RESPECTS, INCLUDING ALL MATTERS OF CONSTRUCTION, VALIDITY, AND
PERFORMANCE, BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAW OF THE
STATE OF NEW YORK AS APPLIED TO CONTRACTS MADE AND PERFORMED WITHIN THE STATE OF
NEW YORK.

<PAGE>

         IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be
duly executed by the respective officers thereunto duly authorized as of the
date first above written.

                                        FIRST SECURITY BANK, NATIONAL
                                        ASSOCIATION,
                                        not in its individual capacity except as
                                        otherwise stated herein,
                                        BUT solely as Owner Trustee, as Lessor

                                        By _____________________________________
                                          Name:
                                          Title:

                                       2

<PAGE>

                                        TRANS WORLD AIRLINES, INC., as
                                        Lessee

                                        By _____________________________________
                                           Name:
                                           Title:

                                       3

<PAGE>

                                                                      APPENDIX A

                        DESCRIPTION OF AIRFRAME, ENGINES,
                            EFFECTIVE TIME AND LEASE

                       [to be supplied by Crowe & Dunlevy]

[NOTE: APPENDIX A SHOULD ALSO INCLUDE A SPACE FOR THE DATE AND TIME OF
EFFECTIVENESS. THIS WILL BE THE SAME AS THE COMMENCEMENT TIME UNDER THE ALA.]

<PAGE>

                                                                      APPENDIX B

                               AMENDMENTS TO LEASE

[Attach Schedule of Terms and Summary of Economic Terms from ALA or Amended and
Restated Lease, in each case revised so that Basic Rent, Stipulated Loss Value,
and Termination Value are set out in schedules that can be deleted from the FAA
filing.]

<PAGE>

                   FAA INSTRUMENT OF ASSIGNMENT AND ASSUMPTION

         FAA INSTRUMENT OF ASSIGNMENT AND ASSUMPTION, dated as of April 9, 2001
(this "INSTRUMENT"), between TRANS WORLD AIRLINES, INC., a Delaware corporation
(the "ASSIGNOR"), and TWA AIRLINES LLC, a Delaware limited liability company
(the "ASSIGNEE").

                                     RECITAL

         The Assignor and the party named as "Lessor" in Appendix A attached
hereto have entered into the Lease Agreement described in Appendix A attached
hereto, as amended, supplemented and assigned by the amendments, supplements and
assignments, if any, thereto described in Appendix A attached hereto (the
"LEASE"), covering the airframe and engines described in Appendix A attached
hereto (the "AIRFRAME" and the "ENGINES", respectively; the Airframe and
Engines, together, the "AIRCRAFT").

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

         1. Effective as of the time and day specified in Appendix A attached
hereto, the Assignor hereby assigns to the Assignee all of the rights of the
"Lessee" under the Lease and the Assignee hereby assumes all of the obligations
of the Assignor under the Lease; PROVIDED that (A) the Assignee will have no
responsibility or liability for any act or omission of the Assignor at any time
or for any act, claim, event, circumstance or condition existing, accruing,
arising or occurring at any time at or prior to the Commencement Time (as
defined in the Assignment, Assumption and Amendment Agreement, dated the date
hereof, among the Assignor, the Assignee, the Lessor named therein, and the
Owner Participant, if any, named therein) (any of the foregoing, a "PRIOR
Claim"); (B) the Assignee does not assume or agree to pay, satisfy, discharge or
perform, and will not be deemed for any reason whatsoever to have assumed, or
agreed to pay, satisfy, discharge or perform, any liability, obligation or
indebtedness of the Assignor with respect to the Aircraft, Airframe or Engines,
or otherwise, whether primary or secondary, direct or indirect, including
without limitation any and all liabilities and obligations of the Assignor
resulting from, caused by or arising out of, directly or indirectly, any act or
omission of the Assignor, the conduct of its business or ownership or lease of
any of its properties or assets (including the Aircraft) or any properties or
assets used by the Assignor at any time, including without limitation such of
the foregoing as constitute, may constitute or are alleged to constitute a tort,
breach of contract or violation of requirements of any law; (C) the Assignee
will not be responsible for any rental or other payments arising or accruing at
any time at or prior to, or in respect of any period at or prior to, the
Commencement Time, even if the payment date therefor under the Lease would have
occurred after the Commencement Time; and (D)

                                       1

<PAGE>

the Assignee shall have no liability for any Prior Claim that results or arises
from the execution or performance of this Instrument.

         2. Effective as of the time and day specified in Appendix A attached
hereto, the Assignor hereby releases all of its right, title and interest in, to
and under the Aircraft and the Lease.

         3. THIS INSTRUMENT IS BEING DELIVERED IN THE STATE OF NEW YORK AND
SHALL IN ALL RESPECTS, INCLUDING ALL MATTERS OF CONSTRUCTION, VALIDITY AND
PERFORMANCE, BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAW OF THE
STATE OF NEW YORK AS APPLIED TO CONTRACTS MADE AND PERFORMED WITHIN THE STATE OF
NEW YORK.

         IN WITNESS WHEREOF, the parties hereto have caused this Instrument to
be duly executed by the respective officers thereunto duly authorized, as of the
date first above written.

                                   TRANS WORLD AIRLINES, INC.

                                   By __________________________________________
                                      Name:
                                      Title:

                                       2

<PAGE>

                                   TWA AIRLINES, LLC

                                   By _____________________________
                                        Name:
                                        Title:
                                        Address:     One City Center
                                                     515 North Sixth Street
                                                     St. Louis, Missouri 63101
                                                     Attn:  R. Stan Anderson
                                                     Chief Operating Officer and
                                                       Senior Vice President of
                                                       Operations
                                                     Fax:  (314) 589-3193
                                                     Tel:   (314) 589-3265

                                       3

<PAGE>

                                                                      APPENDIX A

                        DESCRIPTION OF AIRFRAME, ENGINES,
                            EFFECTIVE TIME AND LEASE

                       [to be supplied by Crowe & Dunlevy]

[NOTE: APPENDIX A SHOULD ALSO INCLUDE A SPACE FOR THE DATE AND TIME OF
EFFECTIVENESS. THIS WILL BE THE SAME AS THE COMMENCEMENT TIME UNDER THE ALA.]

                                       4

<PAGE>

To:      TWA Airlines LLC

Re:      Assumption and Lease Agreement, dated February 27, 2001, regarding the
         Aircraft bearing U.S. registration number N913TW

Ladies and Gentlemen:

         We refer to the Assumption and Lease Agreement specified above (as
amended hereby and from time to time, the "ASSUMPTION AND LEASE AGREEMENT"). All
capitalized terms used but not defined herein shall have the respective meanings
given them in the Assumption and Lease Agreement.

         American Airlines, Inc., a Delaware corporation, ("AMERICAN") hereby
assigns to you all of its rights under the Assumption and Lease Agreement, and
you hereby assume all of the obligations of American under the Assumption and
Lease Agreement. For the express benefit of the Lessor Parties, you and American
each agrees that the execution, delivery and performance of this Lessee
Assignment and Assumption Agreement does not release American from any of its
obligations under the Assumption and Lease Agreement; PROVIDED that performance
of any such obligation by you shall constitute performance by American (and, to
the extent of such performance, discharge such obligation by American).

         For the express benefit of the Lessor Parties, today and at the
Commencement Time:

         (1) you make the representations set forth in paragraphs 1(b) - (d) of
Appendix F of the Assumption and Lease Agreement as if (a) such representations
were applicable to you, (b) such representations were fully set forth herein,
and (c) such representation and warranties explicitly related to this Agreement
and the Assumption and Lease Agreement, and

         (2) you also represent that you are an entity duly formed or
incorporated and validly existing in good standing under the laws of the State
of Delaware, are a Certificated Air Carrier, are a Citizen of the United States,
have the corporate or company power and authority to own or hold under lease
your properties and to enter into and perform those obligations undertaken by
American under the Assumption and Lease Agreement and assumed by you hereby and
are duly qualified to do business as a foreign corporation in good standing in
each state in which you have intrastate routes or have a principal office or a
major overhaul facility (other than failures to so qualify that would not have a
material adverse effect on the consolidated financial condition of you and your

<PAGE>

subsidiaries, considered as a whole), and your chief executive office (as such
term is used in the Uniform Commercial Code as in effect in your state of
formation or incorporation) is located in Texas.

                                       2

<PAGE>

         THIS AGREEMENT IS BEING DELIVERED IN THE STATE OF NEW YORK AND SHALL IN
ALL RESPECTS, INCLUDING ALL MATTERS OF CONSTRUCTION, VALIDITY AND PERFORMANCE,
BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAW OF THE STATE OF NEW
YORK AS APPLIED TO CONTRACTS MADE AND PERFORMED WITHIN THE STATE OF NEW YORK.

         The parties hereto have signed this Lessee Assignment and Assumption
Agreement as of the date written below.

                                                 Sincerely yours,

                                                 American Airlines, Inc.

                                                 By:____________________________
                                                      Name:
                                                      Title:

                                       3

<PAGE>

ACKNOWLEDGED AND
AGREED

TWA AIRLINES LLC

By:____________________________
   Name:
   Title:

Dated as of: _______________, ______

                                       4

<PAGE>

To:      The Lessor Parties named in the Assumption and Lease Agreement referred
         to below.

Re:      Lessee Assignment and Assumption Agreement between American Airlines,
         Inc. a Delaware Corporation ("AMERICAN") and TWA Airlines LLC
         (the "ASSIGNEE")

         relating to

         Assumption and Lease Agreement, dated February 27, 2001, regarding the
         Aircraft bearing U.S. registration number N951TW

Ladies and Gentleman:

         We refer to the Lessee Assignment and Assumption Agreement referred to
above (the "LESSEE ASSIGNMENT"), which relates to the Assumption and Lease
Agreement specified above, as amended by the Lessee Assignment (and as further
amended from time to time, the "ASSUMPTION AND LEASE AGREEMENT"). All
capitalized terms used but not defined herein shall have the respective meanings
given them in the Assumption and Lease Agreement.

         American agrees and confirms for the benefit of the Lessor Parties that
its execution, delivery and performance of the Lessee Assignment and Assumption
Agreement does not release American from any of its obligations under the
Assumption and Lease Agreement; PROVIDED that performance of any such obligation
by the Assignee shall constitute performance by American (and, to the extent of
such performance, discharge such obligation by American).

         In furtherance of the agreement and confirmation by American made in
the previous paragraph, American hereby unconditionally and irrevocably
guarantees to each Lessor Party the performance of and compliance with all
obligations, representations, covenants and undertakings of the Assignee in the
Assumption and Lease Agreement and the Substitute Transaction Documents, if any,
in accordance with each of their respective terms, and agrees that its
obligations hereunder are absolute, unconditional and irrevocable, are not
subject to any defense based on suretyship, and will not be discharged by any
change in the structure or ownership of the Assignee or any of its affiliates or
any insolvency, bankruptcy, reorganization, arrangement, composition,
liquidation, dissolution, or similar proceedings with respect to the Assignee or
any of its affiliates or any other occurrence whatsoever (including any
occurrence which might otherwise constitute a legal or equitable defense or
discharge of the liabilities of a guarantor or surety or which might otherwise
limit recourse against the undersigned), except to the extent of performance of
all obligations of the Assignee in accordance with

<PAGE>

the terms of the Assumption and Lease Agreement and the Substitute Transaction
Documents, if any. This guaranty is a guaranty of payment and not of
collectibility.

         For the express benefit of the Lessor Parties, today and at the
Commencement Time: American makes and confirms the representations set forth in
paragraphs 1(a) - (d) of Appendix F of the Assumption and Lease Agreement as if
(a) such representations were fully set forth herein and (b) such
representations and warranties explicitly related to this Agreement.

THIS GUARANTY IS BEING DELIVERED IN THE STATE OF NEW YORK AND SHALL IN ALL
RESPECTS, INCLUDING ALL MATTERS OF CONSTRUCTION, VALIDITY AND PERFORMANCE, BE
GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAW OF THE STATE OF NEW YORK
AS APPLIED TO CONTRACTS MADE AND PERFORMED WITHIN THE STATE OF NEW YORK.

<PAGE>

         American has signed this American Guaranty as of the date written
below, and American waives any requirement of acceptance or notice thereof. This
American Guaranty may be executed by facsimile or mechanical signature, and such
facsimile or mechanical signature shall be deemed an original.

                                                     Sincerely yours,
                                                     American Airlines, Inc.

                                                     By:________________________
                                                        Name:
                                                        Title:

Dated as of: _______________, ______.

<PAGE>

To:      The Lessor Parties named in the Assumption and Lease Agreement
         referred to below.

Re:      Lessee Assignment and Assumption Agreement between American Airlines,
         Inc. a Delaware Corporation ("AMERICAN") and TWA Airlines LLC
         (the "ASSIGNEE")

         relating to

         Assumption and Lease Agreement, dated February 27, 2001, regarding the
         Aircraft bearing U.S. registration number N951TW

Ladies and Gentleman:

         We refer to the Lessee Assignment and Assumption Agreement referred to
above (the "LESSEE ASSIGNMENT"), which relates to the Assumption and Lease
Agreement specified above, as amended by the Lessee Assignment (and as further
amended from time to time, the "ASSUMPTION AND LEASE AGREEMENT"). All
capitalized terms used but not defined herein shall have the respective meanings
given them in the Assumption and Lease Agreement.

         American agrees and confirms for the benefit of the Lessor Parties that
its execution, delivery and performance of the Lessee Assignment and Assumption
Agreement does not release American from any of its obligations under the
Assumption and Lease Agreement; PROVIDED that performance of any such obligation
by the Assignee shall constitute performance by American (and, to the extent of
such performance, discharge such obligation by American).

         In furtherance of the agreement and confirmation by American made in
the previous paragraph, American hereby unconditionally and irrevocably
guarantees to each Lessor Party the performance of and compliance with all
obligations, representations, covenants and undertakings of the Assignee in the
Assumption and Lease Agreement and the Substitute Transaction Documents, if any,
in accordance with each of their respective terms, and agrees that its
obligations hereunder are absolute, unconditional and irrevocable, are not
subject to any defense based on suretyship, and will not be discharged by any
change in the structure or ownership of the Assignee or any of its affiliates or
any insolvency, bankruptcy, reorganization, arrangement, composition,
liquidation, dissolution, or similar proceedings with respect to the Assignee or
any of its affiliates or any other occurrence whatsoever (including any
occurrence which might otherwise constitute a legal or equitable defense or
discharge of the liabilities of a guarantor or surety or which might otherwise
limit recourse against the undersigned), except to the extent of performance of
all obligations of the Assignee in accordance with

<PAGE>

To:      The Lessor Parties named in the Assumption and Lease Agreement referred
         to below.

Re:      Lessee Assignment and Assumption Agreement between American Airlines,
         Inc. a Delaware Corporation ("AMERICAN") and TWA Airlines LLC (the
         "ASSIGNEE")

         relating to

         Assumption and Lease Agreement, dated February 27, 2001, regarding the
         Aircraft bearing U.S. registration number N716TW

Ladies and Gentleman:

         We refer to the Lessee Assignment and Assumption Agreement referred to
above (the "LESSEE ASSIGNMENT"), which relates to the Assumption and Lease
Agreement specified above, as amended by the Lessee Assignment (and as further
amended from time to time, the "ASSUMPTION AND LEASE AGREEMENT"). All
capitalized terms used but not defined herein shall have the respective meanings
given them in the Assumption and Lease Agreement.

         American agrees and confirms for the benefit of the Lessor Parties that
its execution, delivery and performance of the Lessee Assignment and Assumption
Agreement does not release American from any of its obligations under the
Assumption and Lease Agreement; PROVIDED that performance of any such obligation
by the Assignee shall constitute performance by American (and, to the extent of
such performance, discharge such obligation by American).

         In furtherance of the agreement and confirmation by American made in
the previous paragraph, American hereby unconditionally and irrevocably
guarantees to each Lessor Party the performance of and compliance with all
obligations, representations, covenants and undertakings of the Assignee in the
Assumption and Lease Agreement and the Substitute Transaction Documents, if any,
in accordance with each of their respective terms, and agrees that its
obligations hereunder are absolute, unconditional and irrevocable, are not
subject to any defense based on suretyship, and will not be discharged by any
change in the structure or ownership of the Assignee or any of its affiliates or
any insolvency, bankruptcy, reorganization, arrangement, composition,
liquidation, dissolution, or similar proceedings with respect to the Assignee or
any of its affiliates or any other occurrence whatsoever (including any
occurrence which might otherwise constitute a legal or equitable defense or
discharge of the liabilities of a guarantor or surety or which might otherwise
limit recourse against the undersigned), except to the extent of performance of
all obligations of the Assignee in accordance with

<PAGE>

To:      The Lessor Parties named in the Assumption and Lease Agreement referred
         to below.

Re:      Lessee Assignment and Assumption Agreement between American Airlines,
         Inc. a Delaware Corporation ("AMERICAN") and TWA Airlines LLC (the
         "ASSIGNEE")

         relating to

         Assumption and Lease Agreement, dated February 27, 2001, regarding the
         Aircraft bearing U.S. registration number N902TW

Ladies and Gentleman:

         We refer to the Lessee Assignment and Assumption Agreement referred to
above (the "LESSEE ASSIGNMENT"), which relates to the Assumption and Lease
Agreement specified above, as amended by the Lessee Assignment (and as further
amended from time to time, the "ASSUMPTION AND LEASE AGREEMENT"). All
capitalized terms used but not defined herein shall have the respective meanings
given them in the Assumption and Lease Agreement.

         American agrees and confirms for the benefit of the Lessor Parties that
its execution, delivery and performance of the Lessee Assignment and Assumption
Agreement does not release American from any of its obligations under the
Assumption and Lease Agreement; PROVIDED that performance of any such obligation
by the Assignee shall constitute performance by American (and, to the extent of
such performance, discharge such obligation by American).

         In furtherance of the agreement and confirmation by American made in
the previous paragraph, American hereby unconditionally and irrevocably
guarantees to each Lessor Party the performance of and compliance with all
obligations, representations, covenants and undertakings of the Assignee in the
Assumption and Lease Agreement and the Substitute Transaction Documents, if any,
in accordance with each of their respective terms, and agrees that its
obligations hereunder are absolute, unconditional and irrevocable, are not
subject to any defense based on suretyship, and will not be discharged by any
change in the structure or ownership of the Assignee or any of its affiliates or
any insolvency, bankruptcy, reorganization, arrangement, composition,
liquidation, dissolution, or similar proceedings with respect to the Assignee or
any of its affiliates or any other occurrence whatsoever (including any
occurrence which might otherwise constitute a legal or equitable defense or
discharge of the liabilities of a guarantor or surety or which might otherwise
limit recourse against the undersigned), except to the extent of performance of
all obligations of the Assignee in accordance with

<PAGE>

To:      The Lessor Parties named in the Assumption and Lease Agreement referred
         to below.

Re:      Lessee Assignment and Assumption Agreement between American Airlines,
         Inc. a Delaware Corporation ("AMERICAN") and TWA Airlines LLC (the
         "ASSIGNEE")

         relating to

         Assumption and Lease Agreement, dated February 27, 2001, regarding the
         Aircraft bearing U.S. registration number N905TW

Ladies and Gentleman:

         We refer to the Lessee Assignment and Assumption Agreement referred to
above (the "LESSEE ASSIGNMENT"), which relates to the Assumption and Lease
Agreement specified above, as amended by the Lessee Assignment (and as further
amended from time to time, the "ASSUMPTION AND LEASE AGREEMENT"). All
capitalized terms used but not defined herein shall have the respective meanings
given them in the Assumption and Lease Agreement.

         American agrees and confirms for the benefit of the Lessor Parties that
its execution, delivery and performance of the Lessee Assignment and Assumption
Agreement does not release American from any of its obligations under the
Assumption and Lease Agreement; PROVIDED that performance of any such obligation
by the Assignee shall constitute performance by American (and, to the extent of
such performance, discharge such obligation by American).

         In furtherance of the agreement and confirmation by American made in
the previous paragraph, American hereby unconditionally and irrevocably
guarantees to each Lessor Party the performance of and compliance with all
obligations, representations, covenants and undertakings of the Assignee in the
Assumption and Lease Agreement and the Substitute Transaction Documents, if any,
in accordance with each of their respective terms, and agrees that its
obligations hereunder are absolute, unconditional and irrevocable, are not
subject to any defense based on suretyship, and will not be discharged by any
change in the structure or ownership of the Assignee or any of its affiliates or
any insolvency, bankruptcy, reorganization, arrangement, composition,
liquidation, dissolution, or similar proceedings with respect to the Assignee or
any of its affiliates or any other occurrence whatsoever (including any
occurrence which might otherwise constitute a legal or equitable defense or
discharge of the liabilities of a guarantor or surety or which might otherwise
limit recourse against the undersigned), except to the extent of performance of
all obligations of the Assignee in accordance with

<PAGE>

To:      The Lessor Parties named in the Assumption and Lease Agreement referred
         to below.

Re:      Lessee Assignment and Assumption Agreement between American Airlines,
         Inc. a Delaware Corporation ("AMERICAN") and TWA Airlines LLC (the
         "ASSIGNEE")

         relating to

         Assumption and Lease Agreement, dated February 27, 2001, regarding the
         Aircraft bearing U.S. registration number N906TW

Ladies and Gentleman:

         We refer to the Lessee Assignment and Assumption Agreement referred to
above (the "LESSEE ASSIGNMENT"), which relates to the Assumption and Lease
Agreement specified above, as amended by the Lessee Assignment (and as further
amended from time to time, the "ASSUMPTION AND LEASE AGREEMENT"). All
capitalized terms used but not defined herein shall have the respective meanings
given them in the Assumption and Lease Agreement.

         American agrees and confirms for the benefit of the Lessor Parties that
its execution, delivery and performance of the Lessee Assignment and Assumption
Agreement does not release American from any of its obligations under the
Assumption and Lease Agreement; PROVIDED that performance of any such obligation
by the Assignee shall constitute performance by American (and, to the extent of
such performance, discharge such obligation by American).

         In furtherance of the agreement and confirmation by American made in
the previous paragraph, American hereby unconditionally and irrevocably
guarantees to each Lessor Party the performance of and compliance with all
obligations, representations, covenants and undertakings of the Assignee in the
Assumption and Lease Agreement and the Substitute Transaction Documents, if any,
in accordance with each of their respective terms, and agrees that its
obligations hereunder are absolute, unconditional and irrevocable, are not
subject to any defense based on suretyship, and will not be discharged by any
change in the structure or ownership of the Assignee or any of its affiliates or
any insolvency, bankruptcy, reorganization, arrangement, composition,
liquidation, dissolution, or similar proceedings with respect to the Assignee or
any of its affiliates or any other occurrence whatsoever (including any
occurrence which might otherwise constitute a legal or equitable defense or
discharge of the liabilities of a guarantor or surety or which might otherwise
limit recourse against the undersigned), except to the extent of performance of
all obligations of the Assignee in accordance with

<PAGE>

To:      The Lessor Parties named in the Assumption and Lease Agreement referred
         to below.

Re:      Lessee Assignment and Assumption Agreement between American Airlines,
         Inc. a Delaware Corporation ("AMERICAN") and TWA Airlines LLC (the
         "ASSIGNEE")

         relating to

         Assumption and Lease Agreement, dated February 27, 2001, regarding the
         Aircraft bearing U.S. registration number N919TW

Ladies and Gentleman:

         We refer to the Lessee Assignment and Assumption Agreement referred to
above (the "LESSEE ASSIGNMENT"), which relates to the Assumption and Lease
Agreement specified above, as amended by the Lessee Assignment (and as further
amended from time to time, the "ASSUMPTION AND LEASE AGREEMENT"). All
capitalized terms used but not defined herein shall have the respective meanings
given them in the Assumption and Lease Agreement.

         American agrees and confirms for the benefit of the Lessor Parties that
its execution, delivery and performance of the Lessee Assignment and Assumption
Agreement does not release American from any of its obligations under the
Assumption and Lease Agreement; PROVIDED that performance of any such obligation
by the Assignee shall constitute performance by American (and, to the extent of
such performance, discharge such obligation by American).

         In furtherance of the agreement and confirmation by American made in
the previous paragraph, American hereby unconditionally and irrevocably
guarantees to each Lessor Party the performance of and compliance with all
obligations, representations, covenants and undertakings of the Assignee in the
Assumption and Lease Agreement and the Substitute Transaction Documents, if any,
in accordance with each of their respective terms, and agrees that its
obligations hereunder are absolute, unconditional and irrevocable, are not
subject to any defense based on suretyship, and will not be discharged by any
change in the structure or ownership of the Assignee or any of its affiliates or
any insolvency, bankruptcy, reorganization, arrangement, composition,
liquidation, dissolution, or similar proceedings with respect to the Assignee or
any of its affiliates or any other occurrence whatsoever (including any
occurrence which might otherwise constitute a legal or equitable defense or
discharge of the liabilities of a guarantor or surety or which might otherwise
limit recourse against the undersigned), except to the extent of performance of
all obligations of the Assignee in accordance with

<PAGE>

To:      The Lessor Parties named in the Assumption and Lease Agreement referred
         to below.

Re:      Lessee Assignment and Assumption Agreement between American Airlines,
         Inc. a Delaware Corporation ("AMERICAN") and TWA Airlines LLC (the
         "ASSIGNEE")

         relating to

         Assumption and Lease Agreement, dated February 27, 2001, regarding the
         Aircraft bearing U.S. registration number N931TW

Ladies and Gentleman:

         We refer to the Lessee Assignment and Assumption Agreement referred to
above (the "LESSEE ASSIGNMENT"), which relates to the Assumption and Lease
Agreement specified above, as amended by the Lessee Assignment (and as further
amended from time to time, the "ASSUMPTION AND LEASE AGREEMENT"). All
capitalized terms used but not defined herein shall have the respective meanings
given them in the Assumption and Lease Agreement.

         American agrees and confirms for the benefit of the Lessor Parties that
its execution, delivery and performance of the Lessee Assignment and Assumption
Agreement does not release American from any of its obligations under the
Assumption and Lease Agreement; PROVIDED that performance of any such obligation
by the Assignee shall constitute performance by American (and, to the extent of
such performance, discharge such obligation by American).

         In furtherance of the agreement and confirmation by American made in
the previous paragraph, American hereby unconditionally and irrevocably
guarantees to each Lessor Party the performance of and compliance with all
obligations, representations, covenants and undertakings of the Assignee in the
Assumption and Lease Agreement and the Substitute Transaction Documents, if any,
in accordance with each of their respective terms, and agrees that its
obligations hereunder are absolute, unconditional and irrevocable, are not
subject to any defense based on suretyship, and will not be discharged by any
change in the structure or ownership of the Assignee or any of its affiliates or
any insolvency, bankruptcy, reorganization, arrangement, composition,
liquidation, dissolution, or similar proceedings with respect to the Assignee or
any of its affiliates or any other occurrence whatsoever (including any
occurrence which might otherwise constitute a legal or equitable defense or
discharge of the liabilities of a guarantor or surety or which might otherwise
limit recourse against the undersigned), except to the extent of performance of
all obligations of the Assignee in accordance with

<PAGE>

To:      The Lessor Parties named in the Assumption and Lease Agreement referred
         to below.

Re:      Lessee Assignment and Assumption Agreement between American Airlines,
         Inc. a Delaware Corporation ("AMERICAN") and TWA Airlines LLC (the
         "ASSIGNEE")

         relating to

         Assumption and Lease Agreement, dated February 27, 2001, regarding the
         Aircraft bearing U.S. registration number N9302B

Ladies and Gentleman:

         We refer to the Lessee Assignment and Assumption Agreement referred to
above (the "LESSEE ASSIGNMENT"), which relates to the Assumption and Lease
Agreement specified above, as amended by the Lessee Assignment (and as further
amended from time to time, the "ASSUMPTION AND LEASE AGREEMENT"). All
capitalized terms used but not defined herein shall have the respective meanings
given them in the Assumption and Lease Agreement.

         American agrees and confirms for the benefit of the Lessor Parties that
its execution, delivery and performance of the Lessee Assignment and Assumption
Agreement does not release American from any of its obligations under the
Assumption and Lease Agreement; PROVIDED that performance of any such obligation
by the Assignee shall constitute performance by American (and, to the extent of
such performance, discharge such obligation by American).

         In furtherance of the agreement and confirmation by American made in
the previous paragraph, American hereby unconditionally and irrevocably
guarantees to each Lessor Party the performance of and compliance with all
obligations, representations, covenants and undertakings of the Assignee in the
Assumption and Lease Agreement and the Substitute Transaction Documents, if any,
in accordance with each of their respective terms, and agrees that its
obligations hereunder are absolute, unconditional and irrevocable, are not
subject to any defense based on suretyship, and will not be discharged by any
change in the structure or ownership of the Assignee or any of its affiliates or
any insolvency, bankruptcy, reorganization, arrangement, composition,
liquidation, dissolution, or similar proceedings with respect to the Assignee or
any of its affiliates or any other occurrence whatsoever (including any
occurrence which might otherwise constitute a legal or equitable defense or
discharge of the liabilities of a guarantor or surety or which might otherwise
limit recourse against the undersigned), except to the extent of performance of
all obligations of the Assignee in accordance with

<PAGE>

To:      The Lessor Parties named in the Assumption and Lease Agreement referred
         to below.

Re:      Lessee Assignment and Assumption Agreement between American Airlines,
         Inc. a Delaware Corporation ("AMERICAN") and TWA Airlines LLC (the
         "ASSIGNEE")

         relating to

         Assumption and Lease Agreement, dated February 27, 2001, regarding the
         Aircraft bearing U.S. registration number N9303K

Ladies and Gentleman:

         We refer to the Lessee Assignment and Assumption Agreement referred to
above (the "LESSEE ASSIGNMENT"), which relates to the Assumption and Lease
Agreement specified above, as amended by the Lessee Assignment (and as further
amended from time to time, the "ASSUMPTION AND LEASE AGREEMENT"). All
capitalized terms used but not defined herein shall have the respective meanings
given them in the Assumption and Lease Agreement.

         American agrees and confirms for the benefit of the Lessor Parties that
its execution, delivery and performance of the Lessee Assignment and Assumption
Agreement does not release American from any of its obligations under the
Assumption and Lease Agreement; PROVIDED that performance of any such obligation
by the Assignee shall constitute performance by American (and, to the extent of
such performance, discharge such obligation by American).

         In furtherance of the agreement and confirmation by American made in
the previous paragraph, American hereby unconditionally and irrevocably
guarantees to each Lessor Party the performance of and compliance with all
obligations, representations, covenants and undertakings of the Assignee in the
Assumption and Lease Agreement and the Substitute Transaction Documents, if any,
in accordance with each of their respective terms, and agrees that its
obligations hereunder are absolute, unconditional and irrevocable, are not
subject to any defense based on suretyship, and will not be discharged by any
change in the structure or ownership of the Assignee or any of its affiliates or
any insolvency, bankruptcy, reorganization, arrangement, composition,
liquidation, dissolution, or similar proceedings with respect to the Assignee or
any of its affiliates or any other occurrence whatsoever (including any
occurrence which might otherwise constitute a legal or equitable defense or
discharge of the liabilities of a guarantor or surety or which might otherwise
limit recourse against the undersigned), except to the extent of performance of
all obligations of the Assignee in accordance with

<PAGE>

To:      The Lessor Parties named in the Assumption and Lease Agreement referred
         to below.

Re:      Lessee Assignment and Assumption Agreement between American Airlines,
         Inc. a Delaware Corporation ("AMERICAN") and TWA Airlines LLC (the
         "ASSIGNEE")

         relating to

         Assumption and Lease Agreement, dated February 27, 2001, regarding the
         Aircraft bearing U.S. registration number N9304C

Ladies and Gentleman:

         We refer to the Lessee Assignment and Assumption Agreement referred to
above (the "LESSEE ASSIGNMENT"), which relates to the Assumption and Lease
Agreement specified above, as amended by the Lessee Assignment (and as further
amended from time to time, the "ASSUMPTION AND LEASE AGREEMENT"). All
capitalized terms used but not defined herein shall have the respective meanings
given them in the Assumption and Lease Agreement.

         American agrees and confirms for the benefit of the Lessor Parties that
its execution, delivery and performance of the Lessee Assignment and Assumption
Agreement does not release American from any of its obligations under the
Assumption and Lease Agreement; PROVIDED that performance of any such obligation
by the Assignee shall constitute performance by American (and, to the extent of
such performance, discharge such obligation by American).

         In furtherance of the agreement and confirmation by American made in
the previous paragraph, American hereby unconditionally and irrevocably
guarantees to each Lessor Party the performance of and compliance with all
obligations, representations, covenants and undertakings of the Assignee in the
Assumption and Lease Agreement and the Substitute Transaction Documents, if any,
in accordance with each of their respective terms, and agrees that its
obligations hereunder are absolute, unconditional and irrevocable, are not
subject to any defense based on suretyship, and will not be discharged by any
change in the structure or ownership of the Assignee or any of its affiliates or
any insolvency, bankruptcy, reorganization, arrangement, composition,
liquidation, dissolution, or similar proceedings with respect to the Assignee or
any of its affiliates or any other occurrence whatsoever (including any
occurrence which might otherwise constitute a legal or equitable defense or
discharge of the liabilities of a guarantor or surety or which might otherwise
limit recourse against the undersigned), except to the extent of performance of
all obligations of the Assignee in accordance with

<PAGE>

To:      The Lessor Parties named in the Assumption and Lease Agreement referred
         to below.

Re:      Lessee Assignment and Assumption Agreement between American Airlines,
         Inc. a Delaware Corporation ("AMERICAN") and TWA Airlines LLC (the
         "ASSIGNEE")

         relating to

         Assumption and Lease Agreement, dated February 27, 2001, regarding the
         Aircraft bearing U.S. registration number N9412W

Ladies and Gentleman:

         We refer to the Lessee Assignment and Assumption Agreement referred to
above (the "LESSEE ASSIGNMENT"), which relates to the Assumption and Lease
Agreement specified above, as amended by the Lessee Assignment (and as further
amended from time to time, the "ASSUMPTION AND LEASE AGREEMENT"). All
capitalized terms used but not defined herein shall have the respective meanings
given them in the Assumption and Lease Agreement.

         American agrees and confirms for the benefit of the Lessor Parties that
its execution, delivery and performance of the Lessee Assignment and Assumption
Agreement does not release American from any of its obligations under the
Assumption and Lease Agreement; PROVIDED that performance of any such obligation
by the Assignee shall constitute performance by American (and, to the extent of
such performance, discharge such obligation by American).

         In furtherance of the agreement and confirmation by American made in
the previous paragraph, American hereby unconditionally and irrevocably
guarantees to each Lessor Party the performance of and compliance with all
obligations, representations, covenants and undertakings of the Assignee in the
Assumption and Lease Agreement and the Substitute Transaction Documents, if any,
in accordance with each of their respective terms, and agrees that its
obligations hereunder are absolute, unconditional and irrevocable, are not
subject to any defense based on suretyship, and will not be discharged by any
change in the structure or ownership of the Assignee or any of its affiliates or
any insolvency, bankruptcy, reorganization, arrangement, composition,
liquidation, dissolution, or similar proceedings with respect to the Assignee or
any of its affiliates or any other occurrence whatsoever (including any
occurrence which might otherwise constitute a legal or equitable defense or
discharge of the liabilities of a guarantor or surety or which might otherwise
limit recourse against the undersigned), except to the extent of performance of
all obligations of the Assignee in accordance with

<PAGE>

To:      The Lessor Parties named in the Assumption and Lease Agreement referred
         to below.

Re:      Lessee Assignment and Assumption Agreement between American Airlines,
         Inc. a Delaware Corporation ("AMERICAN") and TWA Airlines LLC (the
         "ASSIGNEE")

         relating to

         Assumption and Lease Agreement, dated February 27, 2001, regarding the
         Aircraft bearing U.S. registration number N9413T

Ladies and Gentleman:

         We refer to the Lessee Assignment and Assumption Agreement referred to
above (the "LESSEE ASSIGNMENT"), which relates to the Assumption and Lease
Agreement specified above, as amended by the Lessee Assignment (and as further
amended from time to time, the "ASSUMPTION AND LEASE AGREEMENT"). All
capitalized terms used but not defined herein shall have the respective meanings
given them in the Assumption and Lease Agreement.

         American agrees and confirms for the benefit of the Lessor Parties that
its execution, delivery and performance of the Lessee Assignment and Assumption
Agreement does not release American from any of its obligations under the
Assumption and Lease Agreement; PROVIDED that performance of any such obligation
by the Assignee shall constitute performance by American (and, to the extent of
such performance, discharge such obligation by American).

         In furtherance of the agreement and confirmation by American made in
the previous paragraph, American hereby unconditionally and irrevocably
guarantees to each Lessor Party the performance of and compliance with all
obligations, representations, covenants and undertakings of the Assignee in the
Assumption and Lease Agreement and the Substitute Transaction Documents, if any,
in accordance with each of their respective terms, and agrees that its
obligations hereunder are absolute, unconditional and irrevocable, are not
subject to any defense based on suretyship, and will not be discharged by any
change in the structure or ownership of the Assignee or any of its affiliates or
any insolvency, bankruptcy, reorganization, arrangement, composition,
liquidation, dissolution, or similar proceedings with respect to the Assignee or
any of its affiliates or any other occurrence whatsoever (including any
occurrence which might otherwise constitute a legal or equitable defense or
discharge of the liabilities of a guarantor or surety or which might otherwise
limit recourse against the undersigned), except to the extent of performance of
all obligations of the Assignee in accordance with

<PAGE>

To:      The Lessor Parties named in the Assumption and Lease Agreement referred
         to below.

Re:      Lessee Assignment and Assumption Agreement between American Airlines,
         Inc. a Delaware Corporation ("AMERICAN") and TWA Airlines LLC (the
         "ASSIGNEE")

         relating to

         Assumption and Lease Agreement, dated February 27, 2001, regarding the
         Aircraft bearing U.S. registration number N9414W

Ladies and Gentleman:

         We refer to the Lessee Assignment and Assumption Agreement referred to
above (the "LESSEE ASSIGNMENT"), which relates to the Assumption and Lease
Agreement specified above, as amended by the Lessee Assignment (and as further
amended from time to time, the "ASSUMPTION AND LEASE AGREEMENT"). All
capitalized terms used but not defined herein shall have the respective meanings
given them in the Assumption and Lease Agreement.

         American agrees and confirms for the benefit of the Lessor Parties that
its execution, delivery and performance of the Lessee Assignment and Assumption
Agreement does not release American from any of its obligations under the
Assumption and Lease Agreement; PROVIDED that performance of any such obligation
by the Assignee shall constitute performance by American (and, to the extent of
such performance, discharge such obligation by American).

         In furtherance of the agreement and confirmation by American made in
the previous paragraph, American hereby unconditionally and irrevocably
guarantees to each Lessor Party the performance of and compliance with all
obligations, representations, covenants and undertakings of the Assignee in the
Assumption and Lease Agreement and the Substitute Transaction Documents, if any,
in accordance with each of their respective terms, and agrees that its
obligations hereunder are absolute, unconditional and irrevocable, are not
subject to any defense based on suretyship, and will not be discharged by any
change in the structure or ownership of the Assignee or any of its affiliates or
any insolvency, bankruptcy, reorganization, arrangement, composition,
liquidation, dissolution, or similar proceedings with respect to the Assignee or
any of its affiliates or any other occurrence whatsoever (including any
occurrence which might otherwise constitute a legal or equitable defense or
discharge of the liabilities of a guarantor or surety or which might otherwise
limit recourse against the undersigned), except to the extent of performance of
all obligations of the Assignee in accordance with

<PAGE>

To:      The Lessor Parties named in the Assumption and Lease Agreement referred
         to below.

Re:      Lessee Assignment and Assumption Agreement between American Airlines,
         Inc. a Delaware Corporation ("AMERICAN") and TWA Airlines LLC (the
         "ASSIGNEE")

         relating to

         Assumption and Lease Agreement, dated February 27, 2001, regarding the
         Aircraft bearing U.S. registration number N907TW

Ladies and Gentleman:

         We refer to the Lessee Assignment and Assumption Agreement referred to
above (the "LESSEE ASSIGNMENT"), which relates to the Assumption and Lease
Agreement specified above, as amended by the Lessee Assignment (and as further
amended from time to time, the "ASSUMPTION AND LEASE AGREEMENT"). All
capitalized terms used but not defined herein shall have the respective meanings
given them in the Assumption and Lease Agreement.

         American agrees and confirms for the benefit of the Lessor Parties that
its execution, delivery and performance of the Lessee Assignment and Assumption
Agreement does not release American from any of its obligations under the
Assumption and Lease Agreement; PROVIDED that performance of any such obligation
by the Assignee shall constitute performance by American (and, to the extent of
such performance, discharge such obligation by American).

         In furtherance of the agreement and confirmation by American made in
the previous paragraph, American hereby unconditionally and irrevocably
guarantees to each Lessor Party the performance of and compliance with all
obligations, representations, covenants and undertakings of the Assignee in the
Assumption and Lease Agreement and the Substitute Transaction Documents, if any,
in accordance with each of their respective terms, and agrees that its
obligations hereunder are absolute, unconditional and irrevocable, are not
subject to any defense based on suretyship, and will not be discharged by any
change in the structure or ownership of the Assignee or any of its affiliates or
any insolvency, bankruptcy, reorganization, arrangement, composition,
liquidation, dissolution, or similar proceedings with respect to the Assignee or
any of its affiliates or any other occurrence whatsoever (including any
occurrence which might otherwise constitute a legal or equitable defense or
discharge of the liabilities of a guarantor or surety or which might otherwise
limit recourse against the undersigned), except to the extent of performance of
all obligations of the Assignee in accordance with

<PAGE>

To:      The Lessor Parties named in the Assumption and Lease Agreement referred
         to below.

Re:      Lessee Assignment and Assumption Agreement between American Airlines,
         Inc. a Delaware Corporation ("AMERICAN") and TWA Airlines LLC (the
         "ASSIGNEE")

         relating to

         Assumption and Lease Agreement, dated February 27, 2001, regarding the
         Aircraft bearing U.S. registration number N911TW

Ladies and Gentleman:

         We refer to the Lessee Assignment and Assumption Agreement referred to
above (the "LESSEE ASSIGNMENT"), which relates to the Assumption and Lease
Agreement specified above, as amended by the Lessee Assignment (and as further
amended from time to time, the "ASSUMPTION AND LEASE AGREEMENT"). All
capitalized terms used but not defined herein shall have the respective meanings
given them in the Assumption and Lease Agreement.

         American agrees and confirms for the benefit of the Lessor Parties that
its execution, delivery and performance of the Lessee Assignment and Assumption
Agreement does not release American from any of its obligations under the
Assumption and Lease Agreement; PROVIDED that performance of any such obligation
by the Assignee shall constitute performance by American (and, to the extent of
such performance, discharge such obligation by American).

         In furtherance of the agreement and confirmation by American made in
the previous paragraph, American hereby unconditionally and irrevocably
guarantees to each Lessor Party the performance of and compliance with all
obligations, representations, covenants and undertakings of the Assignee in the
Assumption and Lease Agreement and the Substitute Transaction Documents, if any,
in accordance with each of their respective terms, and agrees that its
obligations hereunder are absolute, unconditional and irrevocable, are not
subject to any defense based on suretyship, and will not be discharged by any
change in the structure or ownership of the Assignee or any of its affiliates or
any insolvency, bankruptcy, reorganization, arrangement, composition,
liquidation, dissolution, or similar proceedings with respect to the Assignee or
any of its affiliates or any other occurrence whatsoever (including any
occurrence which might otherwise constitute a legal or equitable defense or
discharge of the liabilities of a guarantor or surety or which might otherwise
limit recourse against the undersigned), except to the extent of performance of
all obligations of the Assignee in accordance with

<PAGE>

To:      The Lessor Parties named in the Assumption and Lease Agreement referred
         to below.

Re:      Lessee Assignment and Assumption Agreement between American Airlines,
         Inc. a Delaware Corporation ("AMERICAN") and TWA Airlines LLC (the
         "ASSIGNEE")

         relating to

         Assumption and Lease Agreement, dated February 27, 2001, regarding the
         Aircraft bearing U.S. registration number N912TW

Ladies and Gentleman:

         We refer to the Lessee Assignment and Assumption Agreement referred to
above (the "LESSEE ASSIGNMENT"), which relates to the Assumption and Lease
Agreement specified above, as amended by the Lessee Assignment (and as further
amended from time to time, the "ASSUMPTION AND LEASE AGREEMENT"). All
capitalized terms used but not defined herein shall have the respective meanings
given them in the Assumption and Lease Agreement.

         American agrees and confirms for the benefit of the Lessor Parties that
its execution, delivery and performance of the Lessee Assignment and Assumption
Agreement does not release American from any of its obligations under the
Assumption and Lease Agreement; PROVIDED that performance of any such obligation
by the Assignee shall constitute performance by American (and, to the extent of
such performance, discharge such obligation by American).

         In furtherance of the agreement and confirmation by American made in
the previous paragraph, American hereby unconditionally and irrevocably
guarantees to each Lessor Party the performance of and compliance with all
obligations, representations, covenants and undertakings of the Assignee in the
Assumption and Lease Agreement and the Substitute Transaction Documents, if any,
in accordance with each of their respective terms, and agrees that its
obligations hereunder are absolute, unconditional and irrevocable, are not
subject to any defense based on suretyship, and will not be discharged by any
change in the structure or ownership of the Assignee or any of its affiliates or
any insolvency, bankruptcy, reorganization, arrangement, composition,
liquidation, dissolution, or similar proceedings with respect to the Assignee or
any of its affiliates or any other occurrence whatsoever (including any
occurrence which might otherwise constitute a legal or equitable defense or
discharge of the liabilities of a guarantor or surety or which might otherwise
limit recourse against the undersigned), except to the extent of performance of
all obligations of the Assignee in accordance with

<PAGE>

To:      The Lessor Parties named in the Assumption and Lease Agreement referred
         to below.

Re:      Lessee Assignment and Assumption Agreement between American Airlines,
         Inc. a Delaware Corporation ("AMERICAN") and TWA Airlines LLC (the
         "ASSIGNEE")

         relating to

         Assumption and Lease Agreement, dated February 27, 2001, regarding the
         Aircraft bearing U.S. registration number N923TW

Ladies and Gentleman:

         We refer to the Lessee Assignment and Assumption Agreement referred to
above (the "LESSEE ASSIGNMENT"), which relates to the Assumption and Lease
Agreement specified above, as amended by the Lessee Assignment (and as further
amended from time to time, the "ASSUMPTION AND LEASE AGREEMENT"). All
capitalized terms used but not defined herein shall have the respective meanings
given them in the Assumption and Lease Agreement.

         American agrees and confirms for the benefit of the Lessor Parties that
its execution, delivery and performance of the Lessee Assignment and Assumption
Agreement does not release American from any of its obligations under the
Assumption and Lease Agreement; PROVIDED that performance of any such obligation
by the Assignee shall constitute performance by American (and, to the extent of
such performance, discharge such obligation by American).

         In furtherance of the agreement and confirmation by American made in
the previous paragraph, American hereby unconditionally and irrevocably
guarantees to each Lessor Party the performance of and compliance with all
obligations, representations, covenants and undertakings of the Assignee in the
Assumption and Lease Agreement and the Substitute Transaction Documents, if any,
in accordance with each of their respective terms, and agrees that its
obligations hereunder are absolute, unconditional and irrevocable, are not
subject to any defense based on suretyship, and will not be discharged by any
change in the structure or ownership of the Assignee or any of its affiliates or
any insolvency, bankruptcy, reorganization, arrangement, composition,
liquidation, dissolution, or similar proceedings with respect to the Assignee or
any of its affiliates or any other occurrence whatsoever (including any
occurrence which might otherwise constitute a legal or equitable defense or
discharge of the liabilities of a guarantor or surety or which might otherwise
limit recourse against the undersigned), except to the extent of performance of
all obligations of the Assignee in accordance with

<PAGE>

To:      The Lessor Parties named in the Assumption and Lease Agreement referred
         to below.

Re:      Lessee Assignment and Assumption Agreement between American Airlines,
         Inc. a Delaware Corporation ("AMERICAN") and TWA Airlines LLC (the
         "ASSIGNEE")

         relating to

         Assumption and Lease Agreement, dated February 27, 2001, regarding the
         Aircraft bearing U.S. registration number N960TW

Ladies and Gentleman:

         We refer to the Lessee Assignment and Assumption Agreement referred to
above (the "LESSEE ASSIGNMENT"), which relates to the Assumption and Lease
Agreement specified above, as amended by the Lessee Assignment (and as further
amended from time to time, the "ASSUMPTION AND LEASE AGREEMENT"). All
capitalized terms used but not defined herein shall have the respective meanings
given them in the Assumption and Lease Agreement.

         American agrees and confirms for the benefit of the Lessor Parties that
its execution, delivery and performance of the Lessee Assignment and Assumption
Agreement does not release American from any of its obligations under the
Assumption and Lease Agreement; PROVIDED that performance of any such obligation
by the Assignee shall constitute performance by American (and, to the extent of
such performance, discharge such obligation by American).

         In furtherance of the agreement and confirmation by American made in
the previous paragraph, American hereby unconditionally and irrevocably
guarantees to each Lessor Party the performance of and compliance with all
obligations, representations, covenants and undertakings of the Assignee in the
Assumption and Lease Agreement and the Substitute Transaction Documents, if any,
in accordance with each of their respective terms, and agrees that its
obligations hereunder are absolute, unconditional and irrevocable, are not
subject to any defense based on suretyship, and will not be discharged by any
change in the structure or ownership of the Assignee or any of its affiliates or
any insolvency, bankruptcy, reorganization, arrangement, composition,
liquidation, dissolution, or similar proceedings with respect to the Assignee or
any of its affiliates or any other occurrence whatsoever (including any
occurrence which might otherwise constitute a legal or equitable defense or
discharge of the liabilities of a guarantor or surety or which might otherwise
limit recourse against the undersigned), except to the extent of performance of
all obligations of the Assignee in accordance with

<PAGE>

To:      The Lessor Parties named in the Assumption and Lease Agreement referred
         to below.

Re:      Lessee Assignment and Assumption Agreement between American Airlines,
         Inc. a Delaware Corporation ("AMERICAN") and TWA Airlines LLC (the
         "ASSIGNEE")

         relating to

         Assumption and Lease Agreement, dated February 27, 2001, regarding the
         Aircraft bearing U.S. registration number N9307R

Ladies and Gentleman:

         We refer to the Lessee Assignment and Assumption Agreement referred to
above (the "LESSEE ASSIGNMENT"), which relates to the Assumption and Lease
Agreement specified above, as amended by the Lessee Assignment (and as further
amended from time to time, the "ASSUMPTION AND LEASE AGREEMENT"). All
capitalized terms used but not defined herein shall have the respective meanings
given them in the Assumption and Lease Agreement.

         American agrees and confirms for the benefit of the Lessor Parties that
its execution, delivery and performance of the Lessee Assignment and Assumption
Agreement does not release American from any of its obligations under the
Assumption and Lease Agreement; PROVIDED that performance of any such obligation
by the Assignee shall constitute performance by American (and, to the extent of
such performance, discharge such obligation by American).

         In furtherance of the agreement and confirmation by American made in
the previous paragraph, American hereby unconditionally and irrevocably
guarantees to each Lessor Party the performance of and compliance with all
obligations, representations, covenants and undertakings of the Assignee in the
Assumption and Lease Agreement and the Substitute Transaction Documents, if any,
in accordance with each of their respective terms, and agrees that its
obligations hereunder are absolute, unconditional and irrevocable, are not
subject to any defense based on suretyship, and will not be discharged by any
change in the structure or ownership of the Assignee or any of its affiliates or
any insolvency, bankruptcy, reorganization, arrangement, composition,
liquidation, dissolution, or similar proceedings with respect to the Assignee or
any of its affiliates or any other occurrence whatsoever (including any
occurrence which might otherwise constitute a legal or equitable defense or
discharge of the liabilities of a guarantor or surety or which might otherwise
limit recourse against the undersigned), except to the extent of performance of
all obligations of the Assignee in accordance with

<PAGE>

To:      The Lessor Parties named in the Assumption and Lease Agreement referred
         to below.

Re:      Lessee Assignment and Assumption Agreement between American Airlines,
         Inc. a Delaware Corporation ("AMERICAN") and TWA Airlines LLC (the
         "ASSIGNEE")

         relating to

         Assumption and Lease Agreement, dated February 27, 2001, regarding the
         Aircraft bearing U.S. registration number N913TW

Ladies and Gentleman:

         We refer to the Lessee Assignment and Assumption Agreement referred to
above (the "LESSEE ASSIGNMENT"), which relates to the Assumption and Lease
Agreement specified above, as amended by the Lessee Assignment (and as further
amended from time to time, the "ASSUMPTION AND LEASE AGREEMENT"). All
capitalized terms used but not defined herein shall have the respective meanings
given them in the Assumption and Lease Agreement.

         American agrees and confirms for the benefit of the Lessor Parties that
its execution, delivery and performance of the Lessee Assignment and Assumption
Agreement does not release American from any of its obligations under the
Assumption and Lease Agreement; PROVIDED that performance of any such obligation
by the Assignee shall constitute performance by American (and, to the extent of
such performance, discharge such obligation by American).

         In furtherance of the agreement and confirmation by American made in
the previous paragraph, American hereby unconditionally and irrevocably
guarantees to each Lessor Party the performance of and compliance with all
obligations, representations, covenants and undertakings of the Assignee in the
Assumption and Lease Agreement and the Substitute Transaction Documents, if any,
in accordance with each of their respective terms, and agrees that its
obligations hereunder are absolute, unconditional and irrevocable, are not
subject to any defense based on suretyship, and will not be discharged by any
change in the structure or ownership of the Assignee or any of its affiliates or
any insolvency, bankruptcy, reorganization, arrangement, composition,
liquidation, dissolution, or similar proceedings with respect to the Assignee or
any of its affiliates or any other occurrence whatsoever (including any
occurrence which might otherwise constitute a legal or equitable defense or
discharge of the liabilities of a guarantor or surety or which might otherwise
limit recourse against the undersigned), except to the extent of performance of
all obligations of the Assignee in accordance with

<PAGE>

To:      The Lessor Parties named in the Assumption and Lease Agreement referred
         to below.

Re:      Lessee Assignment and Assumption Agreement between American Airlines,
         Inc. a Delaware Corporation ("AMERICAN") and TWA Airlines LLC (the
         "ASSIGNEE")

         relating to

         Assumption and Lease Agreement, dated February 27, 2001, regarding the
         Aircraft bearing U.S. registration number N950U

Ladies and Gentleman:

         We refer to the Lessee Assignment and Assumption Agreement referred to
above (the "LESSEE ASSIGNMENT"), which relates to the Assumption and Lease
Agreement specified above, as amended by the Lessee Assignment (and as further
amended from time to time, the "ASSUMPTION AND LEASE AGREEMENT"). All
capitalized terms used but not defined herein shall have the respective meanings
given them in the Assumption and Lease Agreement.

         American agrees and confirms for the benefit of the Lessor Parties that
its execution, delivery and performance of the Lessee Assignment and Assumption
Agreement does not release American from any of its obligations under the
Assumption and Lease Agreement; PROVIDED that performance of any such obligation
by the Assignee shall constitute performance by American (and, to the extent of
such performance, discharge such obligation by American).

         In furtherance of the agreement and confirmation by American made in
the previous paragraph, American hereby unconditionally and irrevocably
guarantees to each Lessor Party the performance of and compliance with all
obligations, representations, covenants and undertakings of the Assignee in the
Assumption and Lease Agreement and the Substitute Transaction Documents, if any,
in accordance with each of their respective terms, and agrees that its
obligations hereunder are absolute, unconditional and irrevocable, are not
subject to any defense based on suretyship, and will not be discharged by any
change in the structure or ownership of the Assignee or any of its affiliates or
any insolvency, bankruptcy, reorganization, arrangement, composition,
liquidation, dissolution, or similar proceedings with respect to the Assignee or
any of its affiliates or any other occurrence whatsoever (including any
occurrence which might otherwise constitute a legal or equitable defense or
discharge of the liabilities of a guarantor or surety or which might otherwise
limit recourse against the undersigned), except to the extent of performance of
all obligations of the Assignee in accordance with

<PAGE>

To:      The Lessor Parties named in the Assumption and Lease Agreement referred
         to below.

Re:      Lessee Assignment and Assumption Agreement between American Airlines,
         Inc. a Delaware Corporation ("AMERICAN") and TWA Airlines LLC (the
         "ASSIGNEE")

         relating to

         Assumption and Lease Agreement, dated February 27, 2001, regarding the
         Aircraft bearing U.S. registration number N953U

Ladies and Gentleman:

         We refer to the Lessee Assignment and Assumption Agreement referred to
above (the "LESSEE ASSIGNMENT"), which relates to the Assumption and Lease
Agreement specified above, as amended by the Lessee Assignment (and as further
amended from time to time, the "ASSUMPTION AND LEASE AGREEMENT"). All
capitalized terms used but not defined herein shall have the respective meanings
given them in the Assumption and Lease Agreement.

         American agrees and confirms for the benefit of the Lessor Parties that
its execution, delivery and performance of the Lessee Assignment and Assumption
Agreement does not release American from any of its obligations under the
Assumption and Lease Agreement; PROVIDED that performance of any such obligation
by the Assignee shall constitute performance by American (and, to the extent of
such performance, discharge such obligation by American).

         In furtherance of the agreement and confirmation by American made in
the previous paragraph, American hereby unconditionally and irrevocably
guarantees to each Lessor Party the performance of and compliance with all
obligations, representations, covenants and undertakings of the Assignee in the
Assumption and Lease Agreement and the Substitute Transaction Documents, if any,
in accordance with each of their respective terms, and agrees that its
obligations hereunder are absolute, unconditional and irrevocable, are not
subject to any defense based on suretyship, and will not be discharged by any
change in the structure or ownership of the Assignee or any of its affiliates or
any insolvency, bankruptcy, reorganization, arrangement, composition,
liquidation, dissolution, or similar proceedings with respect to the Assignee or
any of its affiliates or any other occurrence whatsoever (including any
occurrence which might otherwise constitute a legal or equitable defense or
discharge of the liabilities of a guarantor or surety or which might otherwise
limit recourse against the undersigned), except to the extent of performance of
all obligations of the Assignee in accordance with

<PAGE>

To:      The Lessor Parties named in the Assumption and Lease Agreement referred
         to below.

Re:      Lessee Assignment and Assumption Agreement between American Airlines,
         Inc. a Delaware Corporation ("AMERICAN") and TWA Airlines LLC (the
         "ASSIGNEE")

         relating to

         Assumption and Lease Agreement, dated February 27, 2001, regarding the
         Aircraft bearing U.S. registration number N919TW

Ladies and Gentleman:

         We refer to the Lessee Assignment and Assumption Agreement referred to
above (the "LESSEE ASSIGNMENT"), which relates to the Assumption and Lease
Agreement specified above, as amended by the Lessee Assignment (and as further
amended from time to time, the "ASSUMPTION AND LEASE AGREEMENT"). All
capitalized terms used but not defined herein shall have the respective meanings
given them in the Assumption and Lease Agreement.

         American agrees and confirms for the benefit of the Lessor Parties that
its execution, delivery and performance of the Lessee Assignment and Assumption
Agreement does not release American from any of its obligations under the
Assumption and Lease Agreement; PROVIDED that performance of any such obligation
by the Assignee shall constitute performance by American (and, to the extent of
such performance, discharge such obligation by American).

         In furtherance of the agreement and confirmation by American made in
the previous paragraph, American hereby unconditionally and irrevocably
guarantees to each Lessor Party the performance of and compliance with all
obligations, representations, covenants and undertakings of the Assignee in the
Assumption and Lease Agreement and the Substitute Transaction Documents, if any,
in accordance with each of their respective terms, and agrees that its
obligations hereunder are absolute, unconditional and irrevocable, are not
subject to any defense based on suretyship, and will not be discharged by any
change in the structure or ownership of the Assignee or any of its affiliates or
any insolvency, bankruptcy, reorganization, arrangement, composition,
liquidation, dissolution, or similar proceedings with respect to the Assignee or
any of its affiliates or any other occurrence whatsoever (including any
occurrence which might otherwise constitute a legal or equitable defense or
discharge of the liabilities of a guarantor or surety or which might otherwise
limit recourse against the undersigned), except to the extent of performance of
all obligations of the Assignee in accordance with

<PAGE>

To:      The Lessor Parties named in the Assumption and Lease Agreement referred
         to below.

Re:      Lessee Assignment and Assumption Agreement between American Airlines,
         Inc. a Delaware Corporation ("AMERICAN") and TWA Airlines LLC (the
         "ASSIGNEE")

         relating to

         Assumption and Lease Agreement, dated February 27, 2001, regarding the
         Aircraft bearing U.S. registration number N973TW

Ladies and Gentleman:

         We refer to the Lessee Assignment and Assumption Agreement referred to
above (the "LESSEE ASSIGNMENT"), which relates to the Assumption and Lease
Agreement specified above, as amended by the Lessee Assignment (and as further
amended from time to time, the "ASSUMPTION AND LEASE AGREEMENT"). All
capitalized terms used but not defined herein shall have the respective meanings
given them in the Assumption and Lease Agreement.

         American agrees and confirms for the benefit of the Lessor Parties that
its execution, delivery and performance of the Lessee Assignment and Assumption
Agreement does not release American from any of its obligations under the
Assumption and Lease Agreement; PROVIDED that performance of any such obligation
by the Assignee shall constitute performance by American (and, to the extent of
such performance, discharge such obligation by American).

         In furtherance of the agreement and confirmation by American made in
the previous paragraph, American hereby unconditionally and irrevocably
guarantees to each Lessor Party the performance of and compliance with all
obligations, representations, covenants and undertakings of the Assignee in the
Assumption and Lease Agreement and the Substitute Transaction Documents, if any,
in accordance with each of their respective terms, and agrees that its
obligations hereunder are absolute, unconditional and irrevocable, are not
subject to any defense based on suretyship, and will not be discharged by any
change in the structure or ownership of the Assignee or any of its affiliates or
any insolvency, bankruptcy, reorganization, arrangement, composition,
liquidation, dissolution, or similar proceedings with respect to the Assignee or
any of its affiliates or any other occurrence whatsoever (including any
occurrence which might otherwise constitute a legal or equitable defense or
discharge of the liabilities of a guarantor or surety or which might otherwise
limit recourse against the undersigned), except to the extent of performance of
all obligations of the Assignee in accordance with

<PAGE>

To:      The Lessor Parties named in the Assumption and Lease Agreement referred
         to below.

Re:      Lessee Assignment and Assumption Agreement between American Airlines,
         Inc. a Delaware Corporation ("AMERICAN") and TWA Airlines LLC (the
         "ASSIGNEE")

         relating to

         Assumption and Lease Agreement, dated February 27, 2001, regarding the
         Aircraft bearing U.S. registration number N974TW

Ladies and Gentleman:

         We refer to the Lessee Assignment and Assumption Agreement referred to
above (the "LESSEE ASSIGNMENT"), which relates to the Assumption and Lease
Agreement specified above, as amended by the Lessee Assignment (and as further
amended from time to time, the "ASSUMPTION AND LEASE AGREEMENT"). All
capitalized terms used but not defined herein shall have the respective meanings
given them in the Assumption and Lease Agreement.

         American agrees and confirms for the benefit of the Lessor Parties that
its execution, delivery and performance of the Lessee Assignment and Assumption
Agreement does not release American from any of its obligations under the
Assumption and Lease Agreement; PROVIDED that performance of any such obligation
by the Assignee shall constitute performance by American (and, to the extent of
such performance, discharge such obligation by American).

         In furtherance of the agreement and confirmation by American made in
the previous paragraph, American hereby unconditionally and irrevocably
guarantees to each Lessor Party the performance of and compliance with all
obligations, representations, covenants and undertakings of the Assignee in the
Assumption and Lease Agreement and the Substitute Transaction Documents, if any,
in accordance with each of their respective terms, and agrees that its
obligations hereunder are absolute, unconditional and irrevocable, are not
subject to any defense based on suretyship, and will not be discharged by any
change in the structure or ownership of the Assignee or any of its affiliates or
any insolvency, bankruptcy, reorganization, arrangement, composition,
liquidation, dissolution, or similar proceedings with respect to the Assignee or
any of its affiliates or any other occurrence whatsoever (including any
occurrence which might otherwise constitute a legal or equitable defense or
discharge of the liabilities of a guarantor or surety or which might otherwise
limit recourse against the undersigned), except to the extent of performance of
all obligations of the Assignee in accordance with<PAGE>   1

                       OFFICERS' CERTIFICATE - EXHIBIT 4.1

                                 CERTIFICATE OF
                            EXECUTIVE VICE PRESIDENT,
                         CO-CHIEF OPERATING OFFICER AND
                           CHIEF FINANCIAL OFFICER AND
                            VICE PRESIDENT, TREASURER
                             AND ASSISTANT SECRETARY
                      PURSUANT TO SECTIONS 201, 301 AND 303
                                OF THE INDENTURE

                                                           Dated:  July 20, 2001

                The undersigned, ALAN H. LUND and PAMELA S. HENDRY, do hereby
certify that they are the duly appointed and acting Executive Vice President,
Co-Chief Operating Officer and Chief Financial Officer and Vice President,
Treasurer and Assistant Secretary, respectively, of INTERNATIONAL LEASE FINANCE
CORPORATION, a California corporation (the "Company"). Each of the undersigned
also hereby certifies, pursuant to Sections 201, 301 and 303 of the Indenture,
dated as of November 1, 2000 (the "Indenture"), between the Company and The Bank
of New York, as Trustee, that:

                A. There has been established pursuant to resolutions duly
adopted by the Board of Directors of the Company (a copy of such resolutions
being attached hereto as Exhibit B) and by a Special Committee of the Board of
Directors (a copy of such resolutions being attached hereto as Exhibit C) a
series of Securities (as that term is defined in the Indenture) to be issued
under the Indenture, with the following terms:

                1. The title of the Securities of the series is "5.125% Notes
        due August 1, 2004" (the "Notes").

                2. The limit upon the aggregate principal amount of the Notes
        which may be authenticated and delivered under the Indenture (except for
        Notes authenticated and delivered upon registration of, transfer of, or
        in exchange for, or in lieu of other Notes pursuant to Sections 304,
        305, 306, 906 or 1107 of the Indenture) is $300,000,000.

                3. Interest on the Notes shall be payable to the persons in
        whose name the Notes are registered at the close of business on the
        Regular Record Date (as defined in the Indenture) for such interest
        payment, except that interest payable on August 1, 2004 shall be payable
        to the persons to whom principal is payable on such date.

                4. The date on which the principal of the Notes is payable,
        unless accelerated pursuant to the Indenture, shall be August 1, 2004.

                5. The rate at which each of the Notes shall bear interest shall
        be 5.125% per annum. The date from which interest shall accrue for the
        Notes shall be July 20, 2001. The interest payment dates on which
        interest on the Notes shall be payable are each February 1 and August 1,
        commencing February 1, 2004, and at maturity. The regular record dates
        for the interest payable on the Notes on any interest payment date shall
        be the date 15 calendar days prior to such interest payment date.

<PAGE>   2

                6. The place or places where the principal of and interest on
        the Notes shall be payable is at the office of the Trustee, 101 Barclay
        Street, Floor 7E, New York, New York 10286, provided that payment of
        interest, other than at Stated Maturity (as defined in the Indenture),
        may be made at the option of the Company by check mailed to the address
        of the person entitled thereto as such address shall appear in the
        Security Register (as defined in the Indenture).

                7. The Notes are not redeemable prior to August 1, 2004.

                8. There is no obligation of the Company to redeem or purchase
        the Notes pursuant to any sinking fund or analogous provisions, or to
        repay any of the Notes prior to Stated Maturity at the option of a
        holder thereof.

                9. The Notes shall be issued as Global Securities (as defined in
        the Indenture) under the Indenture and The Depository Trust Company is
        hereby designated as the Depositary for the Notes under the Indenture.

                10. The principal amount of the Notes shall be payable upon
        declaration of acceleration of the maturity thereof pursuant to Section
        502 of the Indenture.

                11. Interest on the Notes shall be computed on the basis of a
        360-day year of twelve 30-day months.

                B. The form of the Note is attached hereto as Exhibit A.

                C. The Trustee is appointed as Paying Agent (as defined in the
Indenture).

                D. The foregoing form and terms of the Notes have been
established in conformity with the provisions of the Indenture.

                E. Each of the undersigned has read the provisions of Sections
301 and 303 of the Indenture and the definitions relating thereto and the
resolutions adopted by the Board of Directors of the Company and delivered
herewith. In the opinion of each of the undersigned, he or she has made such
examination or investigation as is necessary to enable him or her to express an
informed opinion as to whether or not all conditions precedent provided in the
Indenture relating to the establishment, authentication and delivery of a series
of Securities under the Indenture, designated as the Notes in this Certificate,
have been complied with. In the opinion of each of the undersigned, all such
conditions precedent have been complied with.

                F. The undersigned Assistant Secretary, by execution of this
Certificate, thereby certifies the actions taken by the Special Committee of the
Board of Directors of the Company in determining and setting the specific terms
of the Notes, and hereby further certifies that attached hereto as Exhibits A, B
and C, respectively, are the form of certificate representing the Notes as duly
approved by the Special Committee of the Board of Directors of the Company, a
copy of resolutions duly adopted by the Board of Directors of the Company on May
4, 2001 and a copy of resolutions duly adopted by the Special Committee of the
Board of Directors as of July 17, 2001, pursuant to which the terms of the Notes
set forth above have been established.

<PAGE>   3

                IN WITNESS WHEREOF, the undersigned have hereunto executed this
Certificate as of the date first above written.

                                     /s/ Alan H. Lund
                                    --------------------------------------------
                                    Alan H. Lund
                                    Executive Vice President, Co-Chief Operating
                                    Officer and Chief Financial Officer

                                     /s/ Pamela S. Hendry
                                    --------------------------------------------
                                    Pamela S. Hendry
                                    Vice President, Treasurer and
                                    Assistant Secretary

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