Document:

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                                                                    Exhibit 10.1

                              HYPERCOM CORPORATION
                      2000 BROAD-BASED STOCK INCENTIVE PLAN

                                    ARTICLE 1
                                     PURPOSE

         1.1 GENERAL. The purpose of the Hypercom Corporation 2000 Broad-Based
Stock Incentive Plan (the "Plan") is to promote the success and enhance the
value of Hypercom Corporation (the "Company") by linking the personal interests
of its members of the Board, employees, officers, and executives of the Company
to those of Company stockholders and by providing such individuals with an
incentive for outstanding performance in order to generate superior returns to
shareholders of the Company. The Plan is intended to provide flexibility to the
Company in its ability to motivate, attract, and retain the services of members
of the Board, employees, officers, and executives of the Company upon whose
judgment, interest, and special effort the successful conduct of the Company's
operation is largely dependent. This Plan is further intended to qualify as a
"broadly-based" plan under the New York Stock Exchange, Inc.'s Listed Company
Manual for purposes of the exception to shareholder approval requirements.

                                   ARTICLE 2
                             EFFECTIVE DATE AND TERM

         2.1 EFFECTIVE DATE. The Plan is effective as of July 18, 2000 (the
"Effective Date").

         2.2 TERM. The Plan shall expire on, and no additional Awards may be
issued after, the tenth anniversary of the Effective Date. Any Awards that are
outstanding on the tenth anniversary of the Effective Date shall remain in force
according to the terms of the Award Agreement.

                                   ARTICLE 3
                          DEFINITIONS AND CONSTRUCTION

         3.1 DEFINITIONS. When a word or phrase appears in this Plan with the
initial letter capitalized, and the word or phrase does not commence a sentence,
the word or phrase shall generally be given the meaning ascribed to it in this
Section or in Sections 1.1 or 2.1 unless a clearly different meaning is required
by the context. The following words and phrases shall have the following
meanings:

                  (a) "Award" means any Option or Restricted Stock Award granted
to a Participant under the Plan.

                  (b) "Award Agreement" means any written agreement, contract,
or other instrument or document evidencing an Award.

                  (c) "Board" means the Board of Directors of the Company.

                  (d) "Cause" means (except as otherwise provided in on Option
Agreement) if the Board, in its reasonable and good faith discretion, determines
that the employee, consultant
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or advisor (i) has developed or pursued interests substantially adverse to the
Company, (ii) materially breached any employment, engagement or confidentiality
agreement or otherwise failed to satisfactorily discharge his or her duties,
(iii) has not devoted all or substantially all of his or her business time,
effort and attention to the affairs of the Company (or such lesser amount as has
been agreed to in writing by the Company), (iv) is convicted of a felony
involving moral turpitude, or (v) has engaged in activities or omissions that
are detrimental to the well-being of the Company. If, subsequent to a
Participant's termination of employment or services, it is discovered that such
Participant's employment or services could have been terminated for Cause, the
Participant's employment or services shall, at the election of the Board, in its
sole discretion, be deemed to have been terminated for Cause retroactively to
the date the events giving rise to Cause occurred.

                  (e) "Change of Control" means and includes each of the
following (except as otherwise provided in an Option Agreement):

                           (1) there shall be consummated any consolidation or
merger of the Company in which the Company is not the continuing or surviving
entity, or pursuant to which Stock would be converted into cash, securities or
other property, other than a merger of the Company in which the holders of the
Company's Stock immediately prior to the merger have the same proportionate
ownership of beneficial interest of common stock or other voting securities of
the surviving entity immediately after the merger;

                           (2) there shall be consummated any sale, lease,
exchange or other transfer (in one transaction or a series of related
transactions) of assets or earning power aggregating more than 40% of the assets
or earning power of the Company and its subsidiaries (taken as a whole), other
than pursuant to a sale-leaseback, structured finance or other form of financing
transaction;

                           (3) the shareholders of the Company shall approve any
plan or proposal for liquidation or dissolution of the Company;

                           (4) any person (as such term is used in Section 13(d)
and 14(d)(2) of the Exchange Act), other than any current shareholder of the
Company or affiliate thereof or any employee benefit plan of the Company or any
subsidiary of the Company or any entity holding shares of capital stock of the
Company for or pursuant to the terms of any such employee benefit plan in its
role as an agent or trustee for such plan, shall become the beneficial owner
(within the meaning of Rule 13d-3 under the Exchange Act) of 20% or more of the
Company's outstanding Stock; or

                           (5) during any period of two consecutive years,
individuals who at the beginning of such period constituted a majority of the
Board shall fail to constitute a majority thereof, unless the election, or the
nomination for election by the Company's shareholders, of each new director was
approved by a vote of at least two-thirds of the directors then still in office
who were directors at the beginning of the period.

                  (f) "Code" means the Internal Revenue Code of 1986, as
amended.

                  (g) "Committee" means the committee of the Board described in
Article 4.

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                  (h) "Disability" shall mean (unless otherwise defined in an
employment agreement between the Company or any of its Subsidiaries and the
Participant or in the Participant's Award Agreement) any illness or other
physical or mental condition of a Participant which renders the Participant
incapable of performing his customary and usual duties for the Company, or any
medically determinable illness or other physical or mental condition resulting
from a bodily injury, disease or mental disorder which in the judgment of the
Committee is permanent and continuous in nature. The Committee may require such
medical or other evidence as it deems necessary to judge the nature and
permanency of the Participant's condition.

                  (i) "Director" means a member of the Board.

                  (j) "Exchange Act" means the Securities Exchange Act of 1934,
as amended.

                  (k) "Fair Market Value" means with respect to Stock or any
other property, the fair market value of such Stock or other property as
determined by the Board in its discretion, under one of the following methods:
(i) the average of the closing bid and asked prices for the Stock as reported on
the New York Stock Exchange (or any national securities exchange on which the
Stock is then listed, which may include the Nasdaq National Market) for that
date or, if no prices are so reported for that date, such prices on the next
preceding date for which closing bid and asked prices were reported; or (ii) the
price as determined by such methods or procedures as may be established from
time to time by the Board.

                  (l) "Non-Employee Director" means a member of the Board who
qualifies as a "Non-Employee Director" as defined in Rule 16b-3(b)(3) of the
Exchange Act, or any successor definition adopted by the Board.

                  (m) "Non-Qualified Stock Option" means an Option that is not
intended to be an incentive stock option as defined in Section 422 of the Code
or any successor provision thereto.

                  (n) "Officer" means an employee of the Company or any
Subsidiary who is an "officer" as defined in Rule 16a-1(f) promulgated under the
Exchange Act or any successor provision thereto.

                  (o) "Option" means a right granted to a Participant under
Article 7 to purchase Stock at a specified price during specified time periods.
All Options granted under this Plan are Non-Qualified Stock Options.

                  (p) "Participant" means a person who, as a member of the
Board, employee, officer, or executive of, or consultant or advisor providing
services to, the Company or any Subsidiary, has been granted an Award under the
Plan.

                  (q) "Plan" means the Hypercom Corporation 2000 Broad-Based
Stock Incentive Plan.

                  (r) "Restricted Stock Award" means Stock granted to a
Participant under Article 8 that is subject to certain restrictions and to risk
of forfeiture.

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                  (s) "Stock" means the common stock of the Company and such
other securities of the Company that may be substituted for Stock pursuant to
Article 10.

                  (t) "Subsidiary" means any corporation or other entity of
which a majority of the outstanding voting stock or voting power is beneficially
owned directly or indirectly by the Company.

                                    ARTICLE 4
                                 ADMINISTRATION

         4.1 COMMITTEE. The Plan shall be administered by the Board of Directors
or, to the extent required to comply with Rule 16b-3 promulgated under the
Exchange Act, a Committee that is appointed by, and serves at the discretion of,
the Board. Any Committee shall consist of at least two individuals who are
members of the Board and are "disinterested persons," as such term is defined in
Rule 16b-3 promulgated under Section 16 of the Exchange Act or any successor
provision, except as may be otherwise permitted under Section 16 of the Exchange
Act and the regulations and rules promulgated thereunder. For purposes of this
Plan, reference to the Board shall refer to the Board or the Committee, as the
case may be. Reference to the Committee shall refer to the Board if the Board
does not appoint a Committee.

         4.2 ACTION BY THE COMMITTEE. A majority of the Committee shall
constitute a quorum. The acts of a majority of the members present at any
meeting at which a quorum is present, and acts approved in writing by a majority
of the Committee in lieu of a meeting, shall be deemed the acts of the
Committee. Each member of the Committee is entitled to, in good faith, rely or
act upon any report or other information furnished to that member by any officer
or other employee of the Company or any Subsidiary, the Company's independent
certified public accountants, or any executive compensation consultant or other
professional retained by the Company to assist in the administration of the
Plan.

         4.3 AUTHORITY OF COMMITTEE. Subject to any specific designation in the
Plan, the Committee has the exclusive power, authority and discretion to:

                  (a) Designate Participants to receive Awards;

                  (b) Determine the type or types of Awards to be granted to
each Participant;

                  (c) Determine the number of Awards to be granted and the
number of shares of Stock to which an Award will relate;

                  (d) Determine the terms and conditions of any Award granted
under the Plan including but not limited to, the exercise price, grant price, or
purchase price, any restrictions or limitations on the Award, any provisions
related to non-competition and recapture of gain on an Award, any schedule for
lapse of forfeiture restrictions or restrictions on the exercisability of an
Award, and accelerations or waivers thereof, based in each case on such
considerations as the Committee in its sole discretion determines;

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                  (e) Amend, modify, or terminate any outstanding Award, with
the Participant's consent unless the Committee has the authority to amend,
modify, or terminate an Award without the Participant's consent under any other
provision of the Plan.

                  (f) Determine whether, to what extent, and under what
circumstances an Award may be settled in, or the exercise price of an Award may
be paid in, cash, Stock, other Awards, or other property, or an Award may be
canceled, forfeited, or surrendered;

                  (g) Prescribe the form of each Award Agreement, which need not
be identical for each Participant;

                  (h) Decide all other matters that must be determined in
connection with an Award;

                  (i) Establish, adopt, or revise any rules and regulations as
it may deem necessary or advisable to administer the Plan; and

                  (j) Interpret the terms of, and any matter arising under, the
Plan or any Award Agreement;

                  (k) Make all other decisions and determinations that may be
required under the Plan or as the Committee deems necessary or advisable to
administer the Plan.

         4.4 CEO GRANTS. The Company's Chief Executive Officer has the same
power, authority and discretion as the Committee under Section 4.3 to grant
Awards pursuant to which a maximum of 560,000 shares of Stock may be awarded;
provided that the recipients of such Awards are not Officers or Directors. When
the Chief Executive Officer is acting as the Committee under this Plan,
references in the Plan to the Committee will be deemed to refer to the Chief
Executive Officer.

         4.5 DECISIONS BINDING. The Committee's interpretation of the Plan, any
Awards granted under the Plan, any Award Agreement and all decisions and
determinations by the Committee with respect to the Plan are final, binding, and
conclusive on all parties.

                                   ARTICLE 5
                           SHARES SUBJECT TO THE PLAN

         5.1 NUMBER OF SHARES. Subject to adjustment provided in Section 10.1,
the aggregate number of shares of Stock reserved and available for grant under
the Plan shall be 5,000,000.

         5.2 LAPSED AWARDS. To the extent that an Award terminates, expires, or
lapses for any reason, any shares of Stock subject to the Award will again be
available for the grant of an Award under the Plan.

         5.3 STOCK DISTRIBUTED. Any Stock distributed pursuant to an Award may
consist, in whole or in part, of authorized and unissued Stock, treasury Stock
or Stock purchased on the open market.

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         5.4 BROADLY-BASED PLAN REQUIREMENTS. At least a majority of the shares
of Stock awarded under this Plan (or shares of Stock underlying Options awarded
under this Plan) during the shorter of (i) the three-year period commencing on
the date the Plan is adopted by the Company, or (ii) the term of the Plan, shall
be made to employees of the Company who are not Officers or Directors.

                                   ARTICLE 6
                          ELIGIBILITY AND PARTICIPATION

         6.1 ELIGIBILITY.

                  (a) GENERAL. Persons eligible to participate in this Plan
include all Directors, employees, Officers, and executives of the Company or a
Subsidiary, as determined by the Committee.

                  (b) FOREIGN PARTICIPANTS. In order to assure the viability of
Awards granted to Participants employed in foreign countries, the Committee may
provide for such special terms as it may consider necessary or appropriate to
accommodate differences in local law, tax policy, or custom. Moreover, the
Committee may approve such supplements to, or amendments, restatements, or
alternative versions of the Plan as it may consider necessary or appropriate for
such purposes without thereby affecting the terms of the Plan as in effect for
any other purpose; provided, however, that no such supplements, amendments,
restatements, or alternative versions shall increase the share limitations
contained in Section 5.1 of the Plan.

         6.2 ACTUAL PARTICIPATION. Subject to the provisions of the Plan, the
Committee may, from time to time, select from among all eligible individuals,
those to whom Awards shall be granted and shall determine the nature and amount
of each Award; provided, however, that the Plan is intended to be a
broadly-based plan and, therefore, participation in the Plan must satisfy the
requirements of Section 5.4 such that less than 50% of the shares of Stock
awarded or underlying Options awarded under this Plan shall be made to Officers
and Directors (whether or not employees). No individual shall have any right to
be granted an Award under this Plan.

                                   ARTICLE 7
                                  STOCK OPTIONS

         7.1 GENERAL. The Committee is authorized to grant Options to
Participants on the following terms and conditions:

                  (a) EXERCISE PRICE. The exercise price per share of Stock
under an Option shall be determined by the Committee and set forth in the Award
Agreement. It is the intention under the Plan that the exercise price for any
Option shall not be less than the Fair Market Value as of the date of grant;
provided, however that the Committee may, in its discretion, grant Options with
an exercise price of less than Fair Market Value on the date of grant.

                  (b) TIME AND CONDITIONS OF EXERCISE. The Committee shall
determine the time or times at which an Option may be exercised in whole or in
part. The

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Committee shall also determine the performance or other conditions, if
any, that must be satisfied before all or part of an Option may be exercised.
Unless otherwise provided in an Award Agreement, an Option will lapse
immediately if a Participant's employment or services are terminated for Cause.

                  (c) PAYMENT. The Committee shall determine the methods by
which the exercise price of an Option may be paid, the form of payment,
including, without limitation, cash, promissory note, shares of Stock (through
actual tender or by attestation), or other property (including broker-assisted
"cashless exercise" arrangements), and the methods by which shares of Stock
shall be delivered or deemed to be delivered to Participants.

                  (d) EVIDENCE OF GRANT. All Options shall be evidenced by a
written Award Agreement between the Company and the Participant. The Award
Agreement shall include such additional provisions as may be specified by the
Committee.

                                   ARTICLE 8
                             RESTRICTED STOCK AWARDS

         8.1 GRANT OF RESTRICTED STOCK. The Committee is authorized to make
Awards of Restricted Stock to Participants in such amounts and subject to such
terms and conditions as determined by the Committee. All Awards of Restricted
Stock shall be evidenced by a Restricted Stock Award Agreement.

         8.2 ISSUANCE AND RESTRICTIONS. Restricted Stock shall be subject to
such restrictions on transferability and other restrictions as the Committee may
impose (including, without limitation, limitations on the right to vote
Restricted Stock or the right to receive dividends on the Restricted Stock).
These restrictions may lapse separately or in combination at such times, under
such circumstances, in such installments, or otherwise, as the Committee
determines at the time of the grant of the Award or thereafter.

         8.3 FORFEITURE. Except as otherwise determined by the Committee at the
time of the grant of the Award or thereafter, upon termination of employment
during the applicable restriction period, Restricted Stock that is at that time
subject to restrictions shall be forfeited, provided, however, that the
Committee may provide in any Restricted Stock Award Agreement that restrictions
or forfeiture conditions relating to Restricted Stock will be waived in whole or
in part in the event of terminations resulting from specified causes, and the
Committee may in other cases waive in whole or in part restrictions or
forfeiture conditions relating to Restricted Stock.

         8.4 CERTIFICATES FOR RESTRICTED STOCK. Restricted Stock granted under
the Plan may be evidenced in such manner as the Committee shall determine. If
certificates representing shares of Restricted Stock are registered in the name
of the Participant, certificates must bear an appropriate legend referring to
the terms, conditions, and restrictions applicable to such Restricted Stock, and
the Company may, at its discretion, retain physical possession of the
certificate until such time as all applicable restrictions lapse.

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                                   ARTICLE 9
                         PROVISIONS APPLICABLE TO AWARDS

         9.1 STAND-ALONE AND TANDEM AWARDS. Awards granted under the Plan may,
in the discretion of the Committee, be granted either alone, in addition to, or
in tandem with, any other Award granted under the Plan. Awards granted in
addition to or in tandem with other Awards may be granted either at the same
time as or at a different time from the grant of such other Awards.

         9.2 EXCHANGE PROVISIONS. The Committee may at any time offer to
exchange or buy out any previously granted Award for a payment in cash, Stock,
or another Award, based on the terms and conditions the Committee determines and
communicates to the Participant at the time the offer is made.

         9.3 TERM OF AWARD. The term of each Award shall be for the period as
determined by the Committee.

         9.4 FORM OF PAYMENT FOR AWARDS. Subject to the terms of the Plan and
any applicable law or Award Agreement, payments or transfers to be made by the
Company or a Subsidiary on the grant or exercise of an Award may be made in such
forms as the Committee determines at or after the time of grant, including
without limitation, cash, promissory note, Stock, other Awards, or other
property, or any combination, and may be made in a single payment or transfer,
in installments, or on a deferred basis, in each case determined in accordance
with rules adopted by, and at the discretion of, the Committee.

         9.5 LIMITS ON TRANSFER. No right or interest of a Participant in any
Award may be pledged, encumbered, or hypothecated to or in favor of any party
other than the Company or a Subsidiary, or shall be subject to any lien,
obligation, or liability of such Participant to any other party other than the
Company or a Subsidiary. Except as otherwise provided by the Committee, no Award
shall be assignable or transferable by a Participant other than by will or the
laws of descent and distribution.

         9.6 BENEFICIARIES. Notwithstanding Section 9.5, a Participant may, in
the manner determined by the Committee, designate a beneficiary to exercise the
rights of the Participant and to receive any distribution with respect to any
Award upon the Participant's death. A beneficiary, legal guardian, legal
representative, or other person claiming any rights under the Plan is subject to
all terms and conditions of the Plan and any Award Agreement applicable to the
Participant, except to the extent the Plan and Award Agreement otherwise
provide, and to any additional restrictions deemed necessary or appropriate by
the Committee. If the Participant is married, a designation of a person other
than the Participant's spouse as his beneficiary with respect to more than 50%
of the Participant's interest in the Award shall not be effective without the
written consent of the Participant's spouse. If no beneficiary has been
designated or survives the Participant, payment shall be made to the person
entitled thereto under the Participant's will or the laws of descent and
distribution. Subject to the foregoing, a beneficiary designation may be changed
or revoked by a Participant at any time provided the change or revocation is
filed with the Committee.

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         9.7 STOCK CERTIFICATES. Notwithstanding anything herein to the
contrary, the Company shall not be required to issue or deliver any certificates
evidencing shares of Stock pursuant to the exercise of any Awards, unless and
until the Board has determined, with advice of counsel, that the issuance and
delivery of such certificates is in compliance with all applicable laws,
regulations of governmental authorities and, if applicable, the requirements of
any exchange on which the shares of Stock are listed or traded. All Stock
certificates delivered under the Plan are subject to any stop-transfer orders
and other restrictions as the Committee deems necessary or advisable to comply
with Federal, state, or foreign jurisdiction, securities or other laws, rules
and regulations and the rules of any national securities exchange or automated
quotation system on which the Stock is listed, quoted, or traded. The Committee
may place legends on any Stock certificate to reference restrictions applicable
to the Stock. In addition to the terms and conditions provided herein, the Board
may require that a Participant make such reasonable covenants, agreements, and
representations as the Board, in its discretion, deems advisable in order to
comply with any such laws, regulations, or requirements.

         9.8 ACCELERATION UPON A CHANGE OF CONTROL. If a Change of Control
occurs, all outstanding Options and other Awards shall become fully exercisable
and all restrictions on outstanding Awards shall lapse. Upon, or in anticipation
of, such an event, the Committee may cause every Award outstanding hereunder to
terminate at a specific time in the future and shall give each Participant the
right to exercise Awards during a period of time as the Committee, in its sole
and absolute discretion, shall determine.

                                   ARTICLE 10
                          CHANGES IN CAPITAL STRUCTURE

         10.1 GENERAL. In the event a stock dividend is declared upon the Stock,
the shares of Stock then subject to each Award (and the number of shares subject
thereto) shall be increased proportionately without any change in the aggregate
purchase price therefor. Subject to Section 9.8, in the event the Stock shall be
changed into or exchanged for a different number or class of shares of Stock or
of shares of another corporation, whether through reorganization,
recapitalization, stock split-up or combination of shares, there shall be
substituted for each such share of Stock then subject to each Award (and for
each share of Stock then subject thereto) the number and class of shares of
Stock into which each outstanding share of Stock shall be so exchanged, all
without any change in the aggregate purchase price for the shares then subject
to each Award.

                                   ARTICLE 11
                    AMENDMENT, MODIFICATION, AND TERMINATION

         11.1 AMENDMENT, MODIFICATION, AND TERMINATION. With the approval of the
Board, at any time and from time to time, the Committee may terminate, amend or
modify the Plan; provided, however, that to the extent necessary and desirable
to comply with any applicable law, regulation, or stock exchange rule, the
Company shall obtain shareholder approval of any Plan amendment in such a manner
and to such a degree as required.

         11.2 AWARDS PREVIOUSLY GRANTED. Except as otherwise provided in the
Plan, including without limitation, the provisions of Article 10, no
termination, amendment, or

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modification of the Plan shall adversely affect in any material way any Award
previously granted under the Plan, without the written consent of the
Participant.

                                   ARTICLE 12
                               GENERAL PROVISIONS

         12.1 NO RIGHTS TO AWARDS. No Participant, employee, or other person
shall have any claim to be granted any Award under the Plan, and neither the
Company nor the Committee is obligated to treat Participants, employees, and
other persons uniformly.

         12.2 NO STOCKHOLDERS RIGHTS. No Award gives the Participant any of the
rights of a stockholder of the Company unless and until shares of Stock are in
fact issued to such person in connection with such Award.

         12.3 WITHHOLDING. The Company or any Subsidiary shall have the
authority and the right to deduct or withhold, or require a Participant to remit
to the Company, an amount sufficient to satisfy Federal, state, and local taxes
(including the Participant's FICA obligation) required by law to be withheld
with respect to any taxable event arising as a result of this Plan. With the
Committee's consent, a Participant may elect to have the Company withhold from
those Stock that would otherwise be received upon the exercise of any Option, a
number of shares having a Fair Market Value equal to the minimum statutory
amount necessary to satisfy the Company's applicable federal, state, local and
foreign income and employment tax withholding obligations.

         12.4 NO RIGHT TO EMPLOYMENT OR SERVICES. Nothing in the Plan or any
Award Agreement shall interfere with or limit in any way the right of the
Company or any Subsidiary to terminate any Participant's employment or services
at any time, nor confer upon any Participant any right to continue in the employ
of the Company or any Subsidiary.

         12.5 UNFUNDED STATUS OF AWARDS. The Plan is intended to be an
"unfunded" plan for incentive compensation. With respect to any payments not yet
made to a Participant pursuant to an Award, nothing contained in the Plan or any
Award Agreement shall give the Participant any rights that are greater than
those of a general creditor of the Company or any Subsidiary.

         12.6 INDEMNIFICATION. To the extent allowable under applicable law,
each member of the Committee or of the Board shall be indemnified and held
harmless by the Company from any loss, cost, liability, or expense that may be
imposed upon or reasonably incurred by such member in connection with or
resulting from any claim, action, suit, or proceeding to which he or she may be
a party or in which he or she may be involved by reason of any action or failure
to act under the Plan and against and from any and all amounts paid by him or
her in satisfaction of judgment in such action, suit, or proceeding against him
or her provided he or she gives the Company an opportunity, at its own expense,
to handle and defend the same before he or she undertakes to handle and defend
it on his or her own behalf. The foregoing right of indemnification shall not be
exclusive of any other rights of indemnification to which such persons may be
entitled under the Company's Articles of Incorporation or Bylaws, as a matter of

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law, or otherwise, or any power that the Company may have to indemnify them or
hold them harmless.

         12.7 RELATIONSHIP TO OTHER BENEFITS. No payment under the Plan shall be
taken into account in determining any benefits under any pension, retirement,
savings, profit sharing, group insurance, welfare or other benefit plan of the
Company or any Subsidiary.

         12.8 EXPENSES. The expenses of administering the Plan shall be borne by
the Company and its Subsidiaries.

         12.9 TITLES AND HEADINGS. The titles and headings of the Sections in
the Plan are for convenience of reference only, and in the event of any
conflict, the text of the Plan, rather than such titles or headings, shall
control.

         12.10 FRACTIONAL SHARES. No fractional shares of stock shall be issued
and the Committee shall determine, in its discretion, whether cash shall be
given in lieu of fractional shares or whether such fractional shares shall be
eliminated by rounding up or down as appropriate.

         12.11 SECURITIES LAW COMPLIANCE. With respect to any person who is, on
the relevant date, obligated to file reports under Section 16 of the Exchange
Act, transactions under this Plan are intended to comply with all applicable
conditions of Rule 16b-3 or its successors under the Exchange Act. To the extent
any provision of the Plan or action by the Committee fails to so comply, it
shall be void to the extent permitted by law and voidable as deemed advisable by
the Committee.

         12.12 GOVERNMENT AND OTHER REGULATIONS. The obligation of the Company
to make payment of awards in Stock or otherwise shall be subject to all
applicable laws, rules, and regulations, and to such approvals by government
agencies as may be required. The Company shall be under no obligation to
register under the Securities Act of 1933, as amended, any of the shares of
Stock paid under the Plan. If the shares paid under the Plan may in certain
circumstances be exempt from registration under the Securities Act of 1933, as
amended, the Company may restrict the transfer of such shares in such manner as
it deems advisable to ensure the availability of any such exemption.

         12.13 GOVERNING LAW. The Plan and all Award Agreements shall be
construed in accordance with and governed by the laws of the State of Arizona.

                                       11EXHIBIT 4-1

                        TRUST INDENTURE AND MORTGAGE
                                [ATA 2000-1]

                       Dated as of ____________, 2000

                                  between

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

                               Owner Trustee

                                    and

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

                                Loan Trustee

                          EQUIPMENT NOTES COVERING
                       ONE BOEING 757-200ER AIRCRAFT
                      MANUFACTURER'S SERIAL NO. ____
                   BEARING U.S. REGISTRATION MARK N___AT
                     LEASED BY AMERICAN TRANS AIR, INC.

<PAGE>

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                             TABLE OF CONTENTS

                                                                       Page

GRANTING CLAUSE.............................................................1

ARTICLE I  DEFINITIONS......................................................7
    SECTION 1.01.  Definitions..............................................7
    SECTION 1.02.  Reference to Other Documents.............................7

ARTICLE II  THE EQUIPMENT NOTES.............................................7
    SECTION 2.01.  Form of Equipment Notes..................................7
    SECTION 2.02.  Issuance and Terms of Equipment Notes....................1
    SECTION 2.03.  Payments from Collateral Only............................2
    SECTION 2.04.  Method of Payment........................................4
    SECTION 2.05.  Application of Payments..................................6
    SECTION 2.06.  Termination of Interest in Collateral....................7
    SECTION 2.07.  Registration, Transfer and Exchange of Equipment Notes...7
    SECTION 2.08.  Mutilated, Destroyed, Lost or Stolen Equipment Notes.....8
    SECTION 2.09.  Payment of Expenses on Transfer; Cancellation............9
    SECTION 2.10.  Mandatory Redemptions of Equipment Notes.................9
    SECTION 2.11. Lessee's Assumption of Equipment Notes....................9
    SECTION 2.12. Voluntary Redemptions of Equipment Notes.................10
    SECTION 2.13.  Redemptions; Notice of Redemption.......................10
    SECTION 2.14.  Option to Purchase Equipment Notes......................11
    SECTION 2.15.  Subordination...........................................12

ARTICLE III  RECEIPT, DISTRIBUTION AND APPLICATION OF INCOME FROM THE
             TRUST INDENTURE ESTATE........................................12
    SECTION 3.01.  Basic Rent Distribution.................................12
    SECTION 3.02.  Event of Loss; Replacement; Voluntary Termination;
                     Refinancing...........................................13
    SECTION 3.03.  Payments After Event of Default.........................14
    SECTION 3.04.  Certain Payments........................................16
    SECTION 3.05.  Other Payments..........................................16
    SECTION 3.06.  Payments to Owner Trustee...............................17
    SECTION 3.07.  Application of Payments Under Guarantee.................17

ARTICLE IV  COVENANTS OF OWNER TRUSTEE; EVENTS OF DEFAULT; REMEDIES
            OF LOAN TRUSTEE................................................17
    SECTION 4.01.  Covenants of Owner Trustee..............................17
    SECTION 4.02.  Event of Default........................................18
    SECTION 4.03.  Certain Rights..........................................20
    SECTION 4.04.  Remedies................................................22
    SECTION 4.05.  Return of Aircraft, Etc.................................24
    SECTION 4.06.  Remedies Cumulative.....................................25
    SECTION 4.07.  Discontinuance of Proceedings...........................26
    SECTION 4.08.  Waiver of Past Defaults.................................26
    SECTION 4.09.  Appointment of Receiver.................................26
    SECTION 4.10.  Loan Trustee Authorized to Execute Bills of
                     Sale, Etc.............................................26
    SECTION 4.11.  Rights of Note Holders to Receive Payment...............26

ARTICLE V  DUTIES OF THE LOAN TRUSTEE......................................27
    SECTION 5.01.  Notice of Event of Default..............................27
    SECTION 5.02.  Action upon Instructions; Certain Rights and
                     Limitations...........................................27
    SECTION 5.03.  Indemnification.........................................30
    SECTION 5.04.  No Duties Except as Specified in Trust Indenture or
                     Instructions..........................................30
    SECTION 5.05.  No Action Except Under Lease, Trust Indenture or
                     Instructions..........................................30

<PAGE>

                                                                          2

    SECTION 5.06.  Replacement Airframes and Replacement Engines...........31
    SECTION 5.07.  Indenture Supplements for Replacements..................34
    SECTION 5.08.  Effect of Replacement...................................34
    SECTION 5.09.  Investment of Amounts Held by Loan Trustee..............34

ARTICLE VI  THE OWNER TRUSTEE AND THE LOAN TRUSTEE.........................35
    SECTION 6.01.  Acceptance of Trusts and Duties.........................35
    SECTION 6.02.  Absence of Duties.......................................35
    SECTION 6.03.  No Representations or Warranties as to Aircraft
                     or Documents..........................................36
    SECTION 6.04.  No Segregation of Monies; No Interest...................36
    SECTION 6.05.  Reliance; Agreements; Advice of Counsel.................36
    SECTION 6.06.  Capacity in Which Acting................................37
    SECTION 6.07.  Compensation............................................37
    SECTION 6.08.  Instructions from Note Holders..........................37

ARTICLE VII  INDEMNIFICATION OF LOAN TRUSTEE BY OWNER TRUSTEE..............38
    SECTION 7.01.  Scope of Indemnification................................38

ARTICLE VIII  SUCCESSOR AND SEPARATE TRUSTEES..............................39
    SECTION 8.01.  Notice of Successor Owner Trustee.......................39
    SECTION 8.02.  Resignation of Loan Trustee; Appointment of Successor...39
    SECTION 8.03.  Appointment of Additional and Separate Trustees.........40

ARTICLE IX  SUPPLEMENT AND AMENDMENTS TO THIS TRUST INDENTURE AND
              OTHER DOCUMENTS..............................................42
    SECTION 9.01.  Instructions of Majority; Limitations...................42
    SECTION 9.02.  Trustees Protected......................................44
    SECTION 9.03.  Documents Mailed to Note Holders........................44
    SECTION 9.04.  No Request Necessary for Lease supplement or Trust
                     Agreement and Indenture Supplement....................44
    SECTION 9.05.  Notices to Liquidity Provider and Policy Provider.......44

ARTICLE X  MISCELLANEOUS...................................................44
    SECTION 10.01.  Termination of Trust Indenture.........................44
    SECTION 10.02.  No Legal Title to Collateral in Note Holders...........45
    SECTION 10.03.  Sale of Aircraft by Loan Trustee Is Binding............45
    SECTION 10.04.  Trust Indenture for Benefit of Owner Trustee, Loan
                      Trustee, Owner Participant, Lessee, Note Holders
                      and the other Mortgage Indemnitees...................45
    SECTION 10.05.  Notices................................................45
    SECTION 10.06.  Severability...........................................46
    SECTION 10.07.  No Oral Modification or Continuing Waivers.............46
    SECTION 10.08.  Successors and Assigns.................................46
    SECTION 10.09.  Headings...............................................46
    SECTION 10.10.  Normal Commercial Relations............................46
    SECTION 10.11.  Governing Law; Counterpart Form........................46
    SECTION 10.12.  Voting By Note Holders.................................47
    SECTION 10.13.  Bankruptcy.............................................47
    SECTION 10.14.  No Action Contrary to Lessee's Rights Under the Lease..47
    SECTION 10.15.  Payments With Respect to Insured Obligation.s..........47

ANNEX A        Definitions

<PAGE>

                                                                          3

EXHIBIT A      Form of Trust Indenture Supplement

SCHEDULE I     Equipment Notes Original Amount, Interest Rate and Amortization

<PAGE>

                                                                          1

                        TRUST INDENTURE AND MORTGAGE
                                [ATA 2000-1]

          TRUST INDENTURE AND MORTGAGE [ATA 2000-1], dated as of _________,
2000 (this "Trust Indenture") between FIRST SECURITY BANK, NATIONAL
ASSOCIATION, a national banking association organized under the laws of the
United States, not in its individual capacity, except as expressly stated
herein, but solely as Owner Trustee under the Trust Agreement referred to
below (together with its successors under the Trust Agreement, the "Owner
Trustee"), and WILMINGTON TRUST COMPANY, a Delaware banking corporation,
not in its individual capacity, except as expressly stated herein, but
solely as Loan Trustee hereunder (together with its successors hereunder,
the "Loan Trustee").

                            W I T N E S S E T H

          WHEREAS, all capitalized terms used herein shall have the
respective meanings set forth or referred to in Article I hereof;

          WHEREAS, the Owner Trustee desires by this Indenture, among other
things, (i) to provide for the issue by the Owner Trustee to the
Pass-Through Trustees of Equipment Notes evidencing the loans made by each
of the Mortgage Participant to finance a portion of the Owner Trustee's
payment of Lessor's Cost for the Aircraft, as provided in the Participation
Agreement, and (ii) to provide for the assignment, mortgage and pledge by
the Owner Trustee to the Loan Trustee, as part of the Collateral hereunder,
among other things, of all of the Owner Trustee's right, estate and
interest in and to the Aircraft, and, except as hereinafter expressly
provided as to Excluded Payments, all of the Owner Trustee's right, title
and interest in, to and under the Lease and all payments and other amounts
received hereunder or thereunder in accordance with the terms hereof, as
security for the Owner Trustee's and Lessee's obligations to the holders of
the Equipment Notes and the Mortgage Indemnitees and for the benefit and
security of such Persons;

          WHEREAS, all things have been done to make the Equipment Notes,
when executed by the Owner Trustee and authenticated and delivered by the
Loan Trustee hereunder, the valid, binding and enforceable obligations of
the Owner Trustee; and

          WHEREAS, all things necessary to make this Trust Indenture the
valid, binding and legal obligation of the Owner Trustee for the uses and
purposes herein set forth, in accordance with its terms, have been done and
performed and have happened:

                              GRANTING CLAUSE

          NOW, THEREFORE, THIS TRUST INDENTURE AND MORTGAGE WITNESSETH,
that, to secure the prompt payment of the Original Amount of, interest on,
Make-Whole Amount, if any, and all other amounts due with respect to, all
Equipment Notes from time to time outstanding hereunder and the performance
and observance by the Owner Trustee of all the agreements, covenants and
provisions contained herein and in the other Operative Agreements to which
it is a party and the Equipment Notes, for the benefit of the Note Holders
and each of the Mortgage Indemnitees and the prompt payment of all amounts
from time to time owing hereunder and under the Participation Agreement to
the Note Holders or any Mortgage Indemnitee by the Owner Trustee or the
Lessee and for the uses and purposes and subject to the terms and
provisions hereof, and in consideration of the premises and of the
covenants herein contained, and of the acceptance of the Equipment Notes by
the holders thereof, and for other good and valuable consideration the
receipt and adequacy whereof are hereby acknowledged, the Owner Trustee has
granted, bargained, sold, assigned, transferred, conveyed, mortgaged,
pledged and confirmed, and does hereby grant, bargain, sell, assign,
transfer, convey, mortgage, pledge and confirm, unto the Loan Trustee, its
successors in trust and assigns, for the security and benefit of the Note
Holders and each of the Mortgage Indemnitees, a first priority security
interest in and mortgage lien on all right, title and interest of the Owner
Trustee in, to

<PAGE>

                                                                          2

and under the following described property, rights and privileges, whether
now or hereafter acquired, other than Excluded Payments (which
collectively, excluding Excluded Payments but including all property
hereafter specifically subjected to the Lien of this Trust Indenture by the
terms hereof or any supplement hereto, are included within, and are
referred to as, the "Collateral"), to wit:

          (1) the Aircraft (including the Airframe and the Engines (as more
particularly described in the Mortgage Supplement) and all replacements
thereof and substitutions therefor to which the Owner Trustee shall from
time to time acquire title as provided herein and in the Lease), as the
same is now and will hereafter be constituted, whether now owned by the
Owner Trustee or hereafter acquired, leased or intended to be leased under
the Lease, and in the case of such Engines, whether or not any such Engine
shall be installed in or attached to the Airframe or any other airframe,
together with (a) all Parts of whatever nature, which are from time to time
included within the definitions of "Airframe" or "Engines", whether now
owned or hereafter acquired, including all substitutions, renewals and
replacements of and additions, improvements, accessions and accumulations
to the Airframe and Engines (other than additions, improvements, accessions
and accumulations which constitute appliances, parts, instruments,
appurtenances, accessories, furnishings or other equipment excluded from
the definition of Parts) and (b) all Aircraft Documents;

          (2) all right, title, interest, claims and demands of the Owner
Trustee, as Lessor, in, to and under the Lease and the Guarantee, together
with all rights, powers, privileges, options and other benefits of the
Owner Trustee as lessor under the Lease, including, without limitation, the
immediate and continuing right to receive and collect all amounts of Basic
Rent, Supplemental Rent, income, revenues, issues, profits, insurance
proceeds, condemnation awards and other payments, tenders and security now
or hereafter payable to or receivable by the Lessor under the Lease
pursuant thereto, and the right to make all waivers and agreements, to give
and receive copies of all notices and other instruments or communications,
to accept surrender or redelivery of the Aircraft or any part thereof, as
well as all the rights, powers and remedies on the part of the Owner
Trustee as Lessor under the Lease, to take such action upon the occurrence
of a Lease Event of Default thereunder, including the commencement, conduct
and consummation of legal, administrative or other proceedings, as shall be
permitted by the Lease or by Law, and to do any and all other things
whatsoever which the Owner Trustee or any lessor is may be entitled to do
under or in respect of the Lease and any right to restitution from the
Lessee or any other Person in respect of any determination of invalidity of
the Lease;

          [(3) each Permitted Sublease assignment and each assigned
Permitted Sublease (to the extent assigned under such Permitted Sublease
assignment), and all Rent thereunder (including, without limitation, all
rents or other amounts of Basic Rent, Supplemental Rent and payments of any
kind made under such assigned Permitted Sublease (to the extent assigned
under such Permitted Sublease assignment]1;

          [(3)/(4)]the Purchase Agreement (to the extent specified in the
Purchase Agreement Assignment), the Purchase Agreement Assignment, the
Engine Manufacturer Warranty Agreement, the Consent and Agreement and the
Bills of Sale and any and all other contracts, agreements, warranties and
instruments relating to the Airframe and Engines or any rights or interests
therein to which the Owner Trustee is now or may hereafter be a party;
together with all rights, powers, privileges, licenses, easements, options
and other benefits of the Owner Trustee under each contract, agreement and
instrument referred to in the clause (4),

--------

[FN]
[F1] Insert bracketed language if the Lease provides for the assignment of a
permitted sublease.
</FN>

<PAGE>

                                                                          3

including the right to receive and collect all payments to the Owner
Trustee thereunder now or hereafter payable to or receivable by the Owner
Trustee pursuant thereto and the right to make all waivers and agreements,
to give and receive notices and other instruments or communications, or to
take any other action under or in respect of any thereof or to take such
action upon the occurrence of a default thereunder, including the
commencement, conduct and consummation of legal, administrative or other
proceedings, as shall be permitted thereby or by Law, and to do any and all
other things which the Owner Trustee is or may be entitled to do thereunder
and any right to restitution from the Lessee, the Owner Participant or any
other Person in respect of any determination of invalidity of any thereof);

          [(4)/(5)]all rents, issues, profits, revenues and other income of
the property subjected or required to be subjected to the Lien of this
Indenture;

          [(5)/(6)]without limiting the generality of the foregoing,
insurance and requisition proceeds with respect to the Aircraft or any part
thereof, including but not limited to such proceeds resulting from the
sale, lease or other disposition thereof, and all estate, right, title and
interest of every nature whatsoever of the Owner Trustee in and to the
same; and without limiting the generality of the foregoing, all insurance
and requisition proceeds with respect to the Aircraft or any part thereof,
including the insurance required under Section 11 of the Lease;

          [(6)/(7)]without limiting the generality of the foregoing, rights
of the Owner Trustee to amounts paid or payable by Lessee to the Owner
Trustee under the Participation Agreement and all rights of the Owner
Trustee to enforce payments of any such amounts thereunder;

          [(7)/(8)]without limiting the generality of the foregoing, monies
and securities from time to time deposited or required to be deposited with
the Loan Trustee pursuant to any terms of this Indenture or the Lease or
required hereby or by the Lease to be held by the Loan Trustee hereunder
(other than Excluded Payments); and

          [(8)/(9)]all proceeds of the foregoing.

          BUT EXCLUDING from the foregoing and from the Collateral all
Excluded Payments, and the right to enforce and collect the same, and
SUBJECT TO all of the terms and conditions of this Trust Indenture and the
rights of the Owner Trustee and the Owner Participant hereunder.

          Concurrently with the delivery of this Indenture, the Owner
Trustee is delivering to the Loan Trustee the original executed counterpart
of the Lease (to each of which a chattel paper receipt is attached), and
executed copies of the Participation Agreement, the Purchase Agreement (to
the extent assigned by the Purchase Agreement Assignment), the Purchase
Agreement Assignment with the Consent and Agreement and the Engine
Manufacturer Warranty Agreement.

          TO HAVE AND TO HOLD all and singular the aforesaid property unto
the Loan Trustee, and its successors and assigns, in trust for the benefit
and security of the Note Holders and the Mortgage Indemnitees, except as
provided in Section 2.15 and Article III hereof without any preference,
distinction or priority of any one Equipment Note over any other by reason
of priority of time of issue, sale, negotiation, date of maturity thereof
or otherwise for any reason whatsoever, and for the uses and purposes and
in all cases and as to all property specified in paragraphs (1) through (9)
inclusive above, subject to the terms and provisions set forth in this
Trust Indenture.

<PAGE>

                                                                          4

          It is expressly agreed that anything herein contained to the
contrary notwithstanding, the Owner Trustee shall remain liable under each
of the Mortgage Agreements to which it is a party to perform all of the
obligations assumed by it thereunder, except to the extent prohibited or
excluded from doing so pursuant to the terms and provisions thereof, and
the Loan Trustee, the Note Holders and the Mortgage Indemnitees shall have
no obligation or liability under the Mortgage Agreements, by reason of or
arising out of the assignment hereunder, nor shall the Loan Trustee, the
Note Holders or the Mortgage Indemnitees be required or obligated in any
manner to perform or fulfill any obligations of the Owner Trustee under or
pursuant to any of the Mortgage Agreements to which it is a party, or,
except as herein expressly provided, to make any payment, or to make any
inquiry as to the nature or sufficiency of any payment received by it, or
present or file any claim, or take any action to collect or enforce the
payment of any amounts which may have been assigned to it or to which it
may be entitled at any time or times.

          The Owner Trustee does hereby constitute the Loan Trustee the
true and lawful attorney of the Owner Trustee, irrevocably, granted for
good and valuable consideration and coupled with an interest and with full
power of substitution, and with full power (in the name of the Owner
Trustee or otherwise) to ask for, require, demand, receive, compound and
give acquittance for any and all monies and claims for monies (in each case
including insurance and requisition proceeds but in all cases excluding
Excluded Payments) due and to become due under or arising out of the
Mortgage Agreements, and all other property which now or hereafter
constitutes part of the Collateral, to endorse any checks or other
instruments or orders in connection therewith and to file any claims or to
take any action or to institute any proceedings which the Loan Trustee may
deem to be necessary or advisable in the premises. Without limiting the
generality of the foregoing, but subject to the rights of the Owner Trustee
and the Owner Participant hereunder, during the continuance of any Event of
Default under this Trust Indenture, the Loan Trustee shall have the right
under such power of attorney to accept any offer in connection with the
exercise of remedies as set forth herein of any purchaser to purchase the
Airframe and Engines and upon such purchase to execute and deliver in the
name of and on behalf of the Owner Trustee an appropriate bill of sale and
other instruments of transfer relating to the Airframe and Engines when
purchased by such purchaser, and to perform all other necessary or
appropriate acts with respect to any such purchase, and in its discretion
to file any claim or take any other action or proceedings, either in its
own name or in the name of the Owner Trustee or otherwise, which the Loan
Trustee may deem necessary or appropriate to protect and preserve the
right, title and interest of the Loan Trustee in and to such Rents and
other sums and the security intended to be afforded hereby; provided,
however, that no action of the Loan Trustee pursuant to this paragraph
shall increase the obligations or liabilities of the Owner Trustee to any
Person beyond those obligations and liabilities specifically set forth in
this Trust Indenture and in the other Operative Agreements. Under the
Lease, Lessee is directed, so long as this Trust Indenture shall not have
been fully discharged, to make all payments of Rent (other than Excluded
Payments) and all other amounts which are required to be paid to or
deposited with the Owner Trustee pursuant to the Lease (other than Excluded
Payments) directly to, or as directed by, the Loan Trustee at such address
or addresses as the Loan Trustee shall specify, for application as provided
in this Trust Indenture. The Owner Trustee agrees that promptly upon
receipt thereof, it will transfer to the Loan Trustee any and all monies
from time to time received by it constituting part of the Collateral, for
distribution by the Loan Trustee pursuant to this Trust Indenture, except
that the Owner Trustee shall accept for distribution pursuant to the Trust
Agreement any amounts distributed to it by the Loan Trustee under this
Trust Indenture.

          The Owner Trustee agrees that at any time and from time to time,
upon the written request of the Loan Trustee, the Owner Trustee will
promptly and duly execute and deliver or cause to be duly executed and
delivered any and all such further instruments and documents as

<PAGE>

                                                                          5

the Loan Trustee may reasonably deem necessary or desirable to perfect,
preserve or protect the mortgage, security interests and assignments
created or intended to be created hereby or to obtain for the Loan Trustee
the full benefits of the assignment hereunder and of the rights and powers
herein granted.

          The Owner Trustee does hereby warrant and represent that it has
not assigned or pledged, and hereby covenants and agrees that it will not
assign or pledge, so long as the assignment hereunder shall remain in
effect, and the Lien hereof shall not have been released pursuant to
Section 10.01 hereof, any of its right, title or interest hereby assigned,
to anyone other than the Loan Trustee, and that it will not, except as
otherwise provided in this Trust Indenture and except with respect to
Excluded Payments to which it is entitled, (i) accept any payment from
Lessee [or any Permitted Sublessee] under any Mortgage Agreement, (ii)
enter into any agreement amending or supplementing any Mortgage Agreement,
(iii) execute any waiver or modification of, or consent under, the terms
of, or exercise any rights, powers or privileges under, any Mortgage
Agreement, (iv) settle or compromise any claim (other than those relating
to an Excluded Payment) arising under any Mortgage Agreement or (v) submit
or consent to the submission of any dispute, difference or other matter
arising under or in respect of any Mortgage Agreement to arbitration
thereunder.

          The Owner Trustee does hereby agree that it will not without the
written consent of the Loan Trustee:

               (a) receive or collect or agree to the receipt or collection
          of any payment of Rent (other than Excluded Payments), including
          Basic Rent, Stipulated Loss Value, Termination Value or any other
          payment to be made pursuant to Section 9, 10 or 17 of the Lease
          prior to the date for the payment thereof provided for by the
          Lease or assign, transfer or hypothecate (other than to the Loan
          Trustee hereunder) any payment of Rent (other than Excluded
          Payments), including Basic Rent, Stipulated Loss Value,
          Termination Value or any other payment to be made pursuant to
          Section 9, 10 or 17 of the Lease, then due or to accrue in the
          future under the Lease in respect of the Airframe and Engines; or

               (b) except as contemplated by the Trust Agreement in
          connection with the appointment of a successor owner trustee,
          sell, mortgage, transfer, assign or hypothecate (other than to
          the Loan Trustee hereunder) its interest in the Airframe and
          Engines or any part thereof or in any amount to be received by it
          from the use or disposition of the Airframe and Engines, other
          than amounts distributed to it pursuant to Article III hereof.

It is hereby further agreed that any and all property described or referred
to in the granting clauses hereof which is hereafter acquired by the Owner
Trustee shall ipso facto, and without any further conveyance, assignment or
act on the part of the Owner Trustee or the Loan Trustee, become and be
subject to the Lien herein granted as fully and completely as though
specifically described herein, but nothing contained in this paragraph
shall be deemed to modify or change the obligations of the Owner Trustee
contained in the foregoing paragraphs.

          The Owner Trustee does hereby ratify and confirm the Lease and
does hereby agree that it will not violate any covenant or agreement made
by it therein, herein or in any other Owner Trustee Agreement.

<PAGE>

                                                                          6

          Notwithstanding the Granting Clause or any of the foregoing
paragraphs, there is hereby excluded from the foregoing sale, transfer,
assignment, grant, pledge and security interest all Excluded Payments.

          IT IS HEREBY COVENANTED AND AGREED by and between the parties
hereto as follows:

                                 ARTICLE I

                                DEFINITIONS

          SECTION 1.01. Definitions. For all purposes of this Indenture the
following terms shall have the following meanings:

"Enforcement Date" shall have the meaning specified in Section 4.03 hereof.

"Event of Default" shall have the meaning specified in Section 4.02 hereof.

"Excess Amount" shall have the meaning specified in Section 2.03(b) hereof.

"Section 1110 Period" shall have the meaning specified in Section 4.04(a)
hereof.

"Senior Holder" shall have the meaning specified in Section 2.15(c) hereof.

          SECTION 1.02. Reference to Other Documents. For all purposes of
this Trust Indenture the terms used but not defined in Section 1.01 are
used as defined in the Annex A to the Participation Agreement, and the
rules of construction set forth therein shall be incorporated herein.

                                 ARTICLE II

                            THE EQUIPMENT NOTES

          SECTION 2.01. Form of Equipment Notes. The Equipment Notes shall
be substantially in the form set forth below:

        THIS EQUIPMENT NOTE HAS NOT BEEN REGISTERED PURSUANT TO THE
     SECURITIES ACT OF 1933, AS AMENDED (THE "ACT"), OR PURSUANT TO THE
     SECURITIES LAWS OF ANY STATE. ACCORDINGLY, THIS EQUIPMENT NOTE MAY
        NOT BE SOLD UNLESS EITHER REGISTERED UNDER THE ACT AND SUCH
      APPLICABLE STATE LAWS OR AN EXEMPTION FROM SUCH REGISTRATIONS IS
                                 AVAILABLE

      FIRST SECURITY BANK, NATIONAL ASSOCIATION, NOT IN ITS INDIVIDUAL
       CAPACITY BUT SOLELY AS OWNER TRUSTEE UNDER TRUST AGREEMENT ATA
                    2000-1 DATED AS OF __________, ____

         SERIES [___] NON-RECOURSE EQUIPMENT NOTE DUE [____] ISSUED
           IN CONNECTION WITH THE BOEING MODEL 757-200ER AIRCRAFT
                 BEARING MANUFACTURER'S SERIAL NUMBER _____
                AND UNITED STATES REGISTRATION NUMBER N___AT

<PAGE>

                                                                          7

No.______
$_______________                                          Date:  [_______]

                               MATURITY DATE

                               INTEREST RATE

                          [______] [_____, _____]

          FIRST SECURITY BANK, NATIONAL ASSOCIATION, not in its individual
capacity but solely as Owner Trustee (herein in such capacity called the
"Owner Trustee") under that certain Trust Agreement N___AT, dated as of
__________, ____, between the Owner Participant named therein and the Owner
Trustee (herein as such Trust Agreement may be supplemented or amended from
time to time called the "Trust Agreement"), hereby promises to pay to
_____________, or the registered assignee thereof, the principal sum of
$___________ (the "Original Amount"), together with interest on the amount
of the Original Amount remaining unpaid from time to time (calculated on
the basis of a year of 360 days and payable for the actual number of days
elapsed (including the first day but excluding the last day)) from the date
hereof until paid in full at a rate per annum equal to the Debt Rate. The
Original Amount of this Equipment Note shall be payable in installments on
the dates set forth in Schedule I hereto equal to the corresponding
percentage of the Original Amount of this Equipment Note set forth in
Schedule I hereto. Accrued but unpaid interest shall be due and payable in
quarterly installments commencing __________, ____, and thereafter on
January 15, April 15 and July 15, October 15 of each year, to and including
_______, _______. Notwithstanding the foregoing, the final payment made on
this Equipment Note shall be in an amount sufficient to discharge in full
the unpaid Original Amount and all accrued and unpaid interest on, and any
other amounts due under, this Equipment Note. Notwithstanding anything to
the contrary contained herein, if any date on which a payment under this
Equipment Note becomes due and payable is not a Business Day then such
payment shall not be made on such scheduled date but shall be made on the
next succeeding Business Day and if such payment is made on such next
succeeding Business Day, no interest shall accrue on the amount of such
payment during such extension.

          For purposes hereof, the term "Trust Indenture" means the Trust
Indenture and Mortgage [ATA 2000-1], dated as of _________, ____, between
the Owner Trustee and Wilmington Trust Company, as Loan Trustee (the "Loan
Trustee"), as the same may be amended or supplemented from time to time.
All other capitalized terms used in this Equipment Note and not defined
herein shall have the respective meanings assigned in the Trust Indenture.

          This Equipment Note shall bear interest, payable on demand, at
the Past Due Rate (calculated on the basis of a year of 360 days and
payable for the actual number of says elapsed (including the first day and
excluding the last day)) on any overdue Original Amount, any overdue
Make-Whole Amount, if any, and (to the extent permitted by applicable Law)
any overdue interest and any other amounts payable hereunder which are
overdue, in each case for the period the same is overdue. Amounts shall be
overdue if not paid when due (whether at stated maturity, by acceleration
or otherwise). The interest rate borne by this Equipment Note shall be
subject to adjustments to the extent, and under the circumstances,
specified by the Registration Rights Agreement.

          All payments of Original Amount, interest, Make-Whole Amount, if
any, and other amounts, if any, to be made by the Owner Trustee hereunder
and under the Trust Indenture or the Participation Agreement shall be
payable only from the income and proceeds from the

<PAGE>

                                                                          8

Trust Estate to the extent included in the Collateral and only to the
extent that the Owner Trustee shall have sufficient income or proceeds from
the Trust Estate to the extent included in the Collateral to enable the
Loan Trustee to make such payments in accordance with the terms of Section
2.03 and Article III of the Trust Indenture and each holder hereof, by its
acceptance of this Equipment Note, agrees that it will look solely to the
income and proceeds from the Collateral to the extent available for
distribution to the holder hereof as above provided and that none of the
Owner Participant, the Owner Trustee or the Loan Trustee is personally
liable or liable in any manner extending to any assets other than the
Collateral to the holder hereof for any amounts payable or any liability
under this Equipment Note or, except as provided in the Trust Indenture or
in the Participation Agreement, for any liability under the Trust Indenture
or the Participation Agreement; provided, however, that nothing herein
contained shall limit, restrict or impair the right of the Loan Trustee,
subject always to the terms and provisions of the Trust Indenture, to
accelerate the maturity of this Equipment Note upon occurrence of an Event
of Default under the Trust Indenture in accordance with Section 4.04(b) of
the Trust Indenture, to bring suit and obtain a judgment against the Owner
Trustee on this Equipment Note for purposes of realizing upon the
Collateral and to exercise all rights and remedies provided under the Trust
Indenture or otherwise realize upon the Collateral.

          There shall be maintained an Equipment Note Register for the
purpose of registering transfers and exchanges of Equipment Notes at the
Corporate Trust Office of the Loan Trustee or at the office of any
successor in the manner provided in 2.07 of the Trust Indenture.

          The Original Amount and interest and other amounts due hereunder
shall be payable in Dollars in immediately available funds at the Corporate
Trust Office of the Loan Trustee, or as otherwise provided in the Trust
Indenture. Each such payment shall be made on the date such payment is due
and without any presentment or surrender of this Equipment Note, except
that in the case of any final payment with respect to this Equipment Note,
the Equipment Note shall be surrendered promptly thereafter by the Loan
Trustee to the Owner Trustee for cancellation.

          The holder hereof, by its acceptance of this Equipment Note,
agrees that, except as provided in the Trust Indenture, each payment
received by it hereunder shall be applied, first, to the payment of accrued
interest on this Equipment Note (as well as any interest on any overdue
Original Amount, any overdue Make-Whole Amount, if any, or, to the extent
permitted by Law, any overdue interest and other amounts hereunder) to the
date of such payment, second, to the payment of the Original Amount of this
Equipment Note then due, third, to the payment of Make-Whole Amount, if
any, and any other amount due hereunder or under the Trust Indenture, and
fourth, the balance, if any, remaining thereafter, to any payments of the
Original Amount of this Equipment Note remaining unpaid in the inverse
order of their normal maturity.

          This Equipment Note is one of the Equipment Notes referred to in
the Trust Indenture which have been or are to be issued by the Owner
Trustee pursuant to the terms of the Trust Indenture. The Collateral is
held by the Loan Trustee as security, in part, for the Equipment Notes. The
provisions of this Equipment Note are subject to the Trust Indenture.
Reference is hereby made to the Trust Indenture and the Participation
Agreement for a complete statement of the rights and obligations of the
holder of, and the nature and extent of the security for, this Equipment
Note and the rights and obligations of the holders of, and the nature and
extent of the security for, any other Equipment Notes executed and
delivered under the Trust Indenture, as well as for a statement of the
terms and conditions of the Trust created by the Trust Indenture, to all of
which terms and conditions in the Trust Indenture and the Participation
Agreement each holder hereof agrees by its acceptance of this Equipment
Note.

<PAGE>

                                                                          9

          As provided in the Trust Indenture and subject to certain
limitations therein set forth, this Equipment Note is exchangeable for a
like aggregate Original Amount of Equipment Notes of different authorized
denominations, as requested by the holder surrendering the same.

          Prior to due presentment for registration of transfer of this
Equipment Note, the Owner Trustee and the Loan Trustee shall treat the
person in whose name this Equipment Note is registered as the owner hereof
for all purposes whether or not this Equipment Note be overdue, and neither
the Owner Trustee nor the Loan Trustee shall be affected by notice to the
contrary.

          This Equipment Note is subject to redemption as provided in
Sections 2.10, 2.12 and 2.13 of the Trust Indenture but not otherwise. This
Equipment Note is also subject to assumption by Lessee as provided in
Section 2.11 of the Trust Indenture, to exchange and to purchase by the
Owner Participant or the Owner Trustee as provided in Section 2.14 of the
Trust Indenture, but not otherwise.

          [The indebtedness evidenced by this Equipment Note is, to the
extent and in the manner provided in the Trust Indenture, subordinate and
subject in right of payment to the prior payment in full of the Secured
Obligations (as defined in the Trust Indenture) in respect of Series G
Equipment Notes, and this Equipment Note is issued subject to such
provisions. The holder of this Equipment Note, by accepting the same, (a)
agrees to and shall be bound by such provisions, (b) authorizes and directs
the Loan Trustee on his behalf to take such action as may be necessary or
appropriate to effectuate the subordination as provided in the Trust
Indenture and (c) appoints the Loan Trustee his attorney-in-fact for such
purpose.]**

          The holder of this Equipment Note, by accepting the same, also
agrees to be subject to the transfer restrictions set forth in Section 2.07
of the Trust Indenture.

          Unless the certificate of authentication hereon has been executed
by or on behalf of the Loan Trustee by manual signature, this Equipment
Note shall not be entitled to any benefit under the Trust Indenture or be
valid or obligatory for any purpose.

THIS EQUIPMENT NOTE SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH
THE LAW OF THE STATE OF NEW YORK.

                                   * * *

--------

[FN]
[F**] To be inserted for each Equipment Note other than any Series G
Equipment Note.
</FN>

<PAGE>

                                                                          1

          IN WITNESS WHEREOF, the Owner Trustee has caused this Equipment
Note to be executed in its corporate name by its officer thereunto duly
authorized on the date hereof.

                                         FIRST SECURITY BANK, NATIONAL
                                         ASSOCIATION,
                                         not in its individual capacity
                                         but solely as Owner Trustee

                                         By:____________________________
                                            Name:
                                            Title:

                LOAN TRUSTEE'S CERTIFICATE OF AUTHENTICATION

          This is one of the Equipment Notes referred to in the
within-mentioned Trust Indenture.

                                         WILMINGTON TRUST COMPANY,
                                         not in its individual capacity
                                         but solely as Loan Trustee

                                         By:________________________________
                                            Name:
                                            Title:

<PAGE>

                                                                          1

                                 SCHEDULE I

                        EQUIPMENT NOTES AMORTIZATION

                                                          Percentage of
                                                          Original Amount
Payment Date                                              to be Paid

                     [SEE SCHEDULE I TO TRUST INDENTURE
                      WHICH IS INSERTED UPON ISSUANCE]

          SECTION 2.02. Issuance and Terms of Equipment Notes. The
Equipment Notes shall be dated the date of issuance thereof, shall be
issued in two separate series consisting of Series G and Series C and in
the maturities and principal amounts and shall bear interest as specified
in Schedule I hereto. On the date of the consummation of the Transaction,
each Equipment Note shall be issued to the Subordination Agent on behalf of
the Pass-Through Trustee under the Pass-Through Trust Agreement. The
Equipment Notes shall be issued in registered form only. The Equipment
Notes shall be issued in denominations of $1,000 and integral multiples
thereof, except that one Equipment Note of each Series may be in an amount
that is not an integral multiple of $1,000.

          Each Equipment Note shall bear interest at the applicable Debt
Rate (calculated on the basis of a year of 360 days comprised of twelve 30
day months and payable for the actual number of days elapsed (including the
first day but excluding the last day)) on the unpaid Original Amount
thereof from time to time outstanding, payable in arrears on [__________,
____], and on each January 15, April 15, July 15 and October 15 thereafter
until maturity. The Original Amount of each Equipment Note shall be payable
on the dates and in the installments equal to the corresponding percentage
of the Original Amount as set forth in Schedule I hereto which shall be
attached as Schedule I to the Equipment Notes. Notwithstanding the
foregoing, the final payment made under each Equipment Note shall be in an
amount sufficient to discharge in full the unpaid Original Amount and all
accrued and unpaid interest on, and any other amounts due under, such
Equipment Note. Each Equipment Note shall bear interest at the Past Due
Rate (calculated on the basis of a year of 360 days and payable for the
actual number of days elapsed (including the first day but excluding the
last day)) on any part of the Original Amount, Make- Whole Amount, if any,
and to the extent permitted by applicable Law, interest and any other
amounts payable thereunder not paid when due for any period during which
the same shall be overdue, in each case for the period the same is overdue.
Amounts shall be overdue if not paid when due (whether at stated maturity,
by acceleration or otherwise). Notwithstanding anything to the contrary
contained herein, if any date on which a payment under any Equipment Note
becomes due and payable is not a Business Day then such payment shall not
be made on such scheduled date but shall be made on the next succeeding
Business Day. The interest rate borne by the Equipment Notes shall be
subject to adjustments to the extent, and under the circumstances,
specified by the Registration Rights Agreement and if such payment is made
on such next succeeding Business Day, no interest shall accrue on the
amount of such payment during such extension, provided that if the next
succeeding Business Day would fall in the next calendar month, such payment
shall be made on the next preceding Business Day.

          The Equipment Notes shall be executed on behalf of the Owner Trustee
by its President or one of its Vice Presidents, Assistant Vice Presidents or
Assistant Secretaries or other authorized officer. Equipment Notes bearing the
signatures of individuals who were at any time the proper officers of the
Owner Trustee shall bind the Owner Trustee, notwithstanding that such
individuals or any of them have ceased to hold such offices prior to the
authentication and delivery of such Equipment Notes or did not hold such
offices at the respective dates of such

<PAGE>

                                                       2

Equipment Notes. The Owner Trustee may from time to time execute and
deliver Equipment Notes with respect to the Aircraft to the Loan Trustee
for authentication upon original issue and such Equipment Notes shall
thereupon be authenticated and delivered by the Loan Trustee upon the
written request of the Owner Trustee signed by a Vice President or
Assistant Vice President or other authorized officer of the Owner Trustee;
provided, however, that each such request shall specify the aggregate
Original Amount of all Equipment Notes to be authenticated hereunder on
original issue with respect to the Aircraft. Each Equipment Note shall be
dated the date of its authentication, which shall be the Delivery Date of
the Aircraft in the case of the original issuance of Equipment Notes. No
Equipment Note shall be secured by or entitled to any benefit under this
Trust Indenture or be valid or obligatory for any purposes, unless there
appears on such Equipment Note a certificate of authentication in the form
provided for herein executed by the Loan Trustee by the manual signature of
one of its authorized officers and such certificate upon any Equipment
Notes shall be conclusive evidence, and the only evidence, that such
Equipment Note has been duly authenticated and delivered hereunder.

          SECTION 2.03. Payments from Collateral Only.

          (a) Without impairing any of the other rights, powers, remedies,
privileges, liens or security interests of the Note Holders under this
Trust Indenture, each Note Holder, by its acceptance of a Equipment Note,
agrees that, except as expressly provided in this Trust Indenture, the
Participation Agreement or any other Operative Agreement, (i) the
obligation to make all payments of the Original Amount of, interest on,
Make-Whole Amount, if any, and all other amounts due with respect to the
Equipment Notes, and the performance by the Owner Trustee of every
obligation or covenant contained in this Trust Indenture and in the
Participation Agreement or any of the other Operative Agreements, shall be
payable only from the income and proceeds from the Trust Estate to the
extent included in the Collateral and only to the extent that the Owner
Trustee shall have sufficient income or proceeds from the Trust Estate to
the extent included in the Collateral to enable the Loan Trustee to make
such payments in accordance with the terms of Article III hereof, and all
of the statements, representations, covenants and agreements made by the
Owner Trustee (when made in such capacity) contained in this Trust
Indenture and any agreement referred to herein other than the Trust
Agreement, unless expressly otherwise stated, are made and intended only
for the purpose of binding the Trust Estate and establishing the existence
of rights and remedies which can be exercised and enforced against the
Trust Estate; therefore, anything contained in this Trust Indenture or such
other agreements to the contrary notwithstanding (except for any express
provisions or representations that the Owner Trustee is responsible for, or
is making, in its individual capacity, for which there would be personal
liability of the Owner Trustee), no recourse shall be had with respect to
this Trust Indenture or such other agreements against the Owner Trustee in
its individual capacity or against any institution or person which becomes
a successor trustee or co-trustee or any officer, director, trustee,
servant or direct or indirect parent or controlling Person or Persons of
any of them, and (ii) none of the Owner Trustee, in its individual
capacity, the Owner Participant, the Loan Trustee and any officer,
director, trustee, servant, employee, agent or direct or indirect parent or
controlling Person or Persons of any of them (other than Owner Trustee in
its trust capacity) shall have any personal liability for any amounts
payable or other obligation owed hereunder, under the Participation
Agreement or any of the other Operative Agreements or under the Equipment
Notes except as expressly provided, herein, in the Lease or in the
Participation Agreement; provided, however, that nothing contained in this
Section 2.03(a) shall be construed to limit the exercise and enforcement in
accordance with the terms of this Trust Indenture or such other agreements
of rights and remedies against the Trust Estate. These provisions are not
intended as any release or discharge of the indebtedness represented by the
Equipment Notes and the Trust Indenture, but are intended only as a
covenant not to sue the Owner Participant, the Owner Trustee or the Loan
Trustee in their individual capacities, except as expressly provided

<PAGE>

                                                                          3

herein or in the Participation Agreement, for a deficiency with respect to
such indebtedness, the indebtedness represented by this Trust Indenture and
the Equipment Notes to remain in full force and effect as fully as though
these provisions were not contained in this Trust Indenture. The Owner
Trustee hereby acknowledges that the Note Holders have expressly reserved
all their rights and remedies against the Collateral, including the right,
in the event of a default in the payment of all or part of the Original
Amount of interest on, Make-Whole Amount, if any, or any other amount due
with respect to any Equipment Note within the periods provided for in
Section 4.02(b) hereof, or upon the occurrence and continuation of any
other Event of Default under this Trust Indenture, to foreclose upon this
Trust Indenture, and/or to receive the proceeds from the Collateral and
otherwise to enforce any other right under this Trust Indenture. Nothing in
this Section 2.03(a) shall (x) release the Owner Participant from personal
liability, or constitute a covenant not to sue the Owner Participant, for
any breach by it of any of its covenants, representations or warranties
contained in the Participation Agreement or for any of the payments it has
agreed to make pursuant to the Participation Agreement or (y) release the
Owner Trustee or constitute a covenant not to sue the Owner Trustee for any
breach by it of any representations, warranties or covenants of the Owner
Trustee contained in the Operative Agreements or (z) release the Owner
Trustee in its individual capacity from personal liability, or constitute a
covenant not to sue the Owner Trustee in its individual capacity for any
breach by it of any representations, warranties or covenants of the Owner
Trustee made in its individual capacity in the Operative Agreements.

          (b) If (i) all or any part of the Trust Estate becomes the
property of, or the Owner Trustee or Owner Participant becomes, a debtor
subject to the reorganization provisions of the Bankruptcy Code, (ii)
pursuant to such reorganization provisions, including Section 1111(b) of
the Bankruptcy Code, the Owner Trustee (in its individual capacity) or the
Owner Participant is required, by reason of the Owner Trustee (in its
individual capacity) or the Owner Participant being held to have recourse
liability to any Note Holder or the Loan Trustee, directly or indirectly
(other than the express recourse liability of the Owner Trustee (in its
individual capacity) or the Owner Participant under the Participation
Agreement, the Lease or this Trust Indenture or by separate agreement), to
make payment on account of any amount payable as principal of, Make-Whole
Amount, if any, interest or other amounts on the Equipment Notes or under
this Indenture and (iii) any Note Holder or the Loan Trustee actually
receives any Excess Amount (as hereinafter defined) which reflects any
payment by the Owner Trustee (in its individual capacity) or the Owner
Participant on account of clause (ii) above, then such Note Holder or the
Loan Trustee, as the case may be, shall promptly refund to the Owner
Trustee (in its individual capacity) or the Owner Participant (whichever
shall have made such payment) such Excess Amount.

          For purposes of this Section 2.03(b), "Excess Amount" means the
amount by which such payment exceeds the amount that would have been
received by a Note Holder or the Loan Trustee if the Owner Trustee (in its
individual capacity) or the Owner Participant had not become subject to the
recourse liability referred to in clause (ii) above. Nothing contained in
this Section 2.03(b) shall prevent a Note Holder or the Loan Trustee from
enforcing any personal recourse obligation (and retaining the proceeds
thereof) of the Owner Trustee (in its individual capacity) or the Owner
Participant under the Participation Agreement or this Trust Indenture (and
any exhibits or annexes hereto or thereto) or by separate agreement or from
retaining any amount paid by Owner Participant under Section 2.14 or 4.03
hereof.

<PAGE>

                                                                          4

          SECTION 2.04. Method of Payment.

          (a) The Original Amount of, interest on, Make-Whole Amount, if
any, and other amounts due under each Equipment Note or hereunder will be
payable in Dollars by wire transfer of immediately available funds not
later than 11:00 a.m., New York City time, on the due date of payment to
the Loan Trustee at the Corporate Trust Office for distribution among the
Note Holders in the manner provided herein. The Owner Trustee shall not
have any responsibility for the distribution of such payment to any Note
Holder. Notwithstanding the foregoing or any provision in any Equipment
Note to the contrary, the Loan Trustee will use reasonable efforts to pay
or cause to be paid, if so directed in writing by any Note Holder (with a
copy to the Owner Trustee), all amounts paid by the Owner Trustee hereunder
and under such holder's Equipment Note or Equipment Notes to such holder or
a nominee therefor (including all amounts distributed pursuant to Article
III of this Trust Indenture) by transferring, or causing to be transferred,
by wire transfer of immediately available funds in Dollars, prior to 2:00
p.m., New York City time, on the due date of payment, to an account
maintained by such holder with a bank located in the continental United
States, the amount to be distributed to such holder, for credit to the
account of such holder maintained at such bank. If the Loan Trustee shall
fail to make any such payment as provided in the immediately preceding
sentence after its receipt of funds at the place and prior to the time
specified above, the Loan Trustee, in its individual capacity and not as
trustee, agrees to compensate such holders for loss of use of funds at the
Debt Rate until such payment is made and the Loan Trustee shall be entitled
to any interest earned on such funds until such payment is made. Any
payment made hereunder shall be made without any presentment or surrender
of any Equipment Note, except that, in the case of the final payment in
respect of any Equipment Note, such Equipment Note shall be surrendered to
the Loan Trustee for cancellation promptly after such payment.
Notwithstanding any other provision of this Trust Indenture to the
contrary, the Loan Trustee shall not be required to make, or cause to be
made, wire transfers as aforesaid prior to the first Business Day on which
it is practicable for the Loan Trustee to do so in view of the time of day
when the funds to be so transferred were received by it if such funds were
received after 12:30 p.m., New York City time, at the place of payment.
Prior to the due presentment for registration of transfer of any Equipment
Note, the Owner Trustee and the Loan Trustee shall deem and treat the
Person in whose name any Equipment Note is registered on the Equipment Note
Register as the absolute owner and holder of such Equipment Note for the
purpose of receiving payment of all amounts payable with respect to such
Equipment Note and for all other purposes, and none of the Owner Trustee or
the Loan Trustee shall be affected by any notice to the contrary. So long
as any signatory to the Participation Agreement or nominee thereof shall be
a registered Note Holder, all payments to it shall be made to the account
of such Note Holder specified in Schedule I thereto and otherwise in the
manner provided in or pursuant to the Participation Agreement unless it
shall have specified some other account or manner of payment by notice to
the Loan Trustee consistent with this Section 2.04.

          (b) The Loan Trustee, as agent for the Owner Trustee, shall
exclude and withhold at the appropriate rate from each payment of Original
Amount of, interest on, Make- Whole Amount, if any, and other amounts due
hereunder or under each Equipment Note (and such exclusion and withholding
shall constitute payment in respect of such Equipment Note) any and all
United States withholding taxes applicable thereto as required by Law. The
Loan Trustee agrees to act as such withholding agent and, in connection
therewith, whenever any present or future United States taxes or similar
charges are required to be withheld with respect to any amounts payable
hereunder or in respect of the Equipment Notes, to withhold such amounts
(and such withholding shall constitute payment in respect of such Equipment
Note) and timely pay the same to the appropriate authority in the name of
and on behalf of the Note Holders, that it will file any necessary United
States withholding tax returns or statements when due, and that as

<PAGE>

                                                       5

promptly as possible after the payment thereof it will deliver to each Note
Holder (with a copy to the Owner Trustee and Lessee) appropriate receipts
showing the payment thereof, together with such additional documentary
evidence as any such Note Holder may reasonably request from time to time.

          If a Note Holder which is a Non-U.S. Person has furnished to the
Loan Trustee a properly completed and currently effective U.S. Internal
Revenue Service Form W-8BEN (or such successor form or forms as may be
required by the United States Treasury Department) during the calendar year
in which the payment hereunder or under the Equipment Note(s) held by such
holder is made (but prior to the making of such payment), or in either of
the two preceding calendar years, and has not notified the Loan Trustee of
the withdrawal or inaccuracy of such form prior to the date of such payment
(and the Loan Trustee has no reason to know that any information set forth
in such form is inaccurate), the Loan Trustee shall withhold only the
amount, if any, required by Law (after taking into account any applicable
exemptions claimed by the Note Holder) to be withheld from payments
hereunder or under the Equipment Notes held by such holder in respect of
United States federal income tax (and such withholding shall constitute
payment in respect of such Equipment Note). If a Note Holder (x) which is a
Non-U.S. Person has furnished to the Loan Trustee a properly completed and
currently effective U.S. Internal Revenue Service Form W-8ECI in duplicate
(or such successor certificate, form or forms as may be required by the
United States Treasury Department as necessary in order to avoid
withholding of United States federal income tax), during the calendar year
in which the payment is made (but prior to the making of such payment), and
has not notified the Loan Trustee of the withdrawal or inaccuracy of such
certificate or form prior to the date of such payment (and the Loan Trustee
has no reason to know that any information set forth in such form is
inaccurate) or (y) which is a U.S. Person has furnished to the Loan Trustee
a properly completed and currently effective U.S. Internal Revenue Service
Form W-9, if applicable, prior to a payment hereunder or under the
Equipment Notes held by such holder, no amount shall be withheld from
payments in respect of United States federal income tax. If any Note Holder
has notified the Loan Trustee that any of the foregoing forms or
certificates is withdrawn or inaccurate, or if such holder has not filed a
form claiming an exemption from United States withholding tax or if the
Code or the regulations thereunder or the administrative interpretation
thereof are at any time after the date hereof amended to require such
withholding of United States federal income taxes from payments under the
Equipment Notes held by such holder, the Loan Trustee agrees to withhold
from each payment due to the relevant Note Holder withholding taxes at the
appropriate rate under Law and will, on a timely basis as more fully
provided above, deposit such amounts with an authorized depository and make
such returns, statements, receipts and other documentary evidence in
connection therewith as required by applicable Law.

          SECTION 2.05. Application of Payments. In the case of each
Equipment Note (and, subject to the provisions of Article III hereof) each
payment of Original Amount, Make- Whole Amount, if any, and interest or
other amounts due thereon shall be applied:

          First: to the payment of accrued interest on such Equipment Note
(as well as any interest on any overdue Original Amount, any overdue
Make-Whole Amount, if any, and to the extent permitted by Law, any overdue
interest and any other overdue amounts thereunder) to the date of such
payment;

          Second: to the payment of the Original Amount of such Equipment
Note (or a portion thereof) then due thereunder;

          Third: to the payment of Make-Whole Amount, if any, and any other
amount due hereunder or under such Equipment Note; and

<PAGE>

                                                                          6

          Fourth: the balance, if any, remaining thereafter, to any
payments of the portions of Original Amount of such Equipment Note
remaining unpaid (provided that such Equipment Note shall not be subject to
redemption except as provided in Sections 2.11, 2.12 and 2.13 hereof).

          The amounts paid pursuant to clause "Fourth" above shall be
applied to the payment of installments of Original Amount of such Equipment
Note in the inverse order of their normal maturity.

          SECTION 2.06. Termination of Interest in Collateral. No Note
Holder or any other Mortgage Indemnitee shall, as such, have any further
interest in, or other right with respect to, the Collateral when and if the
Original Amount of, Make-Whole Amount, if any, and interest on and other
amounts due under all Equipment Notes held by such Note Holder and all
other sums then due and payable to such Note Holder, such Mortgage
Indemnitee or the Loan Trustee hereunder (including, without limitation,
under the third paragraph of Section 2.02 hereof) and under the other
Operative Agreements by the Owner Trustee and the Lessee (collectively, the
"Secured Obligations") shall have been paid in full.

          SECTION 2.07. Registration, Transfer and Exchange of Equipment
Notes. The Loan Trustee shall keep a register (the "Equipment Note
Register") in which the Loan Trustee shall provide for the registration of
Equipment Notes and the registration of transfers of Equipment Notes. No
such transfer shall be given effect unless and until registration hereunder
shall have occurred. The Equipment Note Register shall be kept at the
Corporate Trust Office of the Loan Trustee. The Loan Trustee is hereby
appointed "Equipment Note Registrar" for the purpose of registering
Equipment Notes and transfers of Equipment Notes as herein provided. A
holder of any Equipment Note intending to exchange such Equipment Note
shall surrender such Equipment Note to the Loan Trustee at the Corporate
Trust Office, together with a written request from the registered holder
thereof for the issuance of a new Equipment Note, specifying, in the case
of a surrender for transfer, the name and address of the new holder or
holders. Upon surrender for registration of transfer of any Equipment Note,
the Owner Trustee shall execute, and the Loan Trustee shall authenticate
and deliver, in the name of the designated transferee or transferees, one
or more new Equipment Notes of a like aggregate Original Amount and of the
same series. At the option of the Note Holder, Equipment Notes may be
exchanged for other Equipment Notes of any authorized denominations of a
like aggregate Original Amount, upon surrender of the Equipment Notes to be
exchanged to the Loan Trustee at the Corporate Trust Office. Whenever any
Equipment Notes are so surrendered for exchange, the Owner Trustee shall
execute, and the Loan Trustee shall authenticate and deliver, the Equipment
Notes which the Note Holder making the exchange is entitled to receive. All
Equipment Notes issued upon any registration of transfer or exchange of
Equipment Notes (whether under this Section 2.07 or under Section 2.08
hereof or otherwise under this Trust Indenture) shall be the valid
obligations of the Owner Trustee evidencing the same respective
obligations, and entitled to the same security and benefits under this
Trust Indenture, as the Equipment Notes surrendered upon such registration
of transfer or exchange. Every Equipment Note presented or surrendered for
registration of transfer, shall (if so required by the Loan Trustee) be
duly endorsed, or be accompanied by a written instrument of transfer in
form satisfactory to the Loan Trustee duly executed by the Note Holder or
such holder's attorney duly authorized in writing, and the Loan Trustee
shall require evidence satisfactory to it as to the compliance of any such
transfer with the Securities Act, and the securities Laws of any applicable
state. The Loan Trustee shall make a notation on each new Equipment Note of
the amount of all payments of Original Amount previously made on the old
Equipment Note or Equipment Notes with respect to which such new Equipment
Note is issued and the date to which interest on such old Equipment Note or
Equipment Notes has been paid. Interest shall be deemed to have been paid
on such new

<PAGE>

                                                                          7

Equipment Note to the date on which interest shall have been paid on such
old Equipment Note, and all payments of the Original Amount marked on such
new Equipment Note, as provided above, shall be deemed to have been made
thereon. The Owner Trustee shall not be required to exchange any
surrendered Equipment Notes as provided above during the ten-day period
preceding the due date of any payment on such Equipment Note. The Owner
Trustee shall in all cases deem the Person in whose name any Equipment Note
shall have been issued and registered as the absolute owner and holder of
such Equipment Note for the purpose of receiving payment of all amounts
payable by the Owner Trustee with respect to such Equipment Note and for
all purposes until a notice stating otherwise is received from the Loan
Trustee and such change is reflected on the Equipment Note Register. The
Loan Trustee will promptly notify the Owner Trustee, the Owner Participant
and Lessee of each registration of a transfer of an Equipment Note. Any
such transferee of an Equipment Note, by its acceptance of an Equipment
Note, agrees to the provisions of the Participation Agreement applicable to
Note Holders, including, without limitation, Sections 6.5, 7.5, 7.6 and 10,
and shall be deemed to have represented and warranted (except as provided
above), and covenanted, to the parties to the Participation Agreement as to
the matters represented, warranted and covenanted as provided in the
Participation Agreement. Subject to compliance by the Note Holder and its
transferee (if any) of the requirements set forth in this Section 2.08, the
Loan Trustee and the Owner Trustee shall use all reasonable efforts to
issue new Equipment Notes upon transfer or exchange within 10 Business Days
of the date an Equipment Note is surrendered for transfer or exchange.

          SECTION 2.08. Mutilated, Destroyed, Lost or Stolen Equipment
Notes. If any Equipment Note shall become mutilated, destroyed, lost or
stolen, the Owner Trustee shall, upon the written request of the holder of
such Equipment Note, execute and the Loan Trustee shall authenticate and
deliver in replacement thereof a new Equipment Note of the same series,
payable in the same Original Amount dated the same date and captioned as
issued in connection with the Aircraft. If the Equipment Note being
replaced has become mutilated, such Equipment Note shall be surrendered to
the Loan Trustee and a photocopy thereof shall be furnished to the Owner
Trustee. If the Equipment Note being replaced has been destroyed, lost or
stolen, the holder of such Equipment Note shall furnish to the Owner
Trustee, the Owner Participant and the Loan Trustee such security or
indemnity as may be required by them to save the Owner Trustee, the Owner
Participant and the Loan Trustee harmless and evidence satisfactory to the
Owner Trustee, the Owner Participant and the Loan Trustee of the
destruction, loss or theft of such Equipment Note and of the ownership
thereof.

          If a "qualified institutional buyer" of the type referred to in
paragraph (a)(1)(i)(A), (B), (D) or (E) of Rule 144A under the Securities
Act (a "QIB") is the holder of any such destroyed, lost or stolen Equipment
Note, then the written indemnity of such QIB, signed by an authorized
officer thereof, in favor of, delivered to and in form reasonably
satisfactory to Lessee, the Owner Participant, the Owner Trustee and the
Loan Trustee shall be accepted as satisfactory indemnity and security and
no further indemnity or security shall be required as a condition to the
execution and delivery of such new Equipment Note. Subject to compliance by
the Note Holder of the requirements set forth in this Section 2.08, the
Loan Trustee and the Owner Trustee shall use all reasonable efforts to
issue new Equipment Notes within 10 Business Days of the date of the
written request therefor from the Note Holder.

          SECTION 2.09. Payment of Expenses on Transfer; Cancellation.

          (a) No service charge shall be made to a Note Holder for any
registration of transfer or exchange of Equipment Notes, but the Loan
Trustee, as Equipment Note Registrar, may require payment of a sum
sufficient to cover any tax or other governmental charge that may be
imposed in connection with any registration of transfer or exchange of
Equipment Notes.

<PAGE>

                                                                          8

          (b) The Loan Trustee shall cancel all Equipment Notes surrendered
for replacement, redemption, transfer, exchange, payment or cancellation,
shall destroy the canceled Equipment Notes and shall deliver to the Owner
Trustee, upon request, its certification to such effect.

          SECTION 2.10. Mandatory Redemptions of Equipment Notes.

          (a) On the date on which Lessee is required pursuant to Section
10.1.2 of the Lease to make payment for an Event of Loss with respect to
the Aircraft, all of the Equipment Notes shall be redeemed in whole at a
redemption price equal to 100% of the unpaid Original Amount thereof,
together with all accrued interest thereon to the date of redemption and
all other amounts payable hereunder or under the Participation Agreement to
the Note Holders but without Make-Whole Amount.

          (b) If the Lease is terminated with respect to the Aircraft by
Lessee pursuant to Section 9 or Section 17.3 thereof and Lessee shall not
have assumed all of the obligations of the Owner Trustee hereunder pursuant
to Section 2.11 hereof and Section 11.6 of the Participation Agreement, on
the date the Lease is so terminated all the Equipment Notes shall be
redeemed in whole at a redemption price equal to 100% of the unpaid
Original Amount thereof, together with accrued interest thereon to the date
of redemption and all other amounts payable hereunder or under the
Participation Agreement and all other Operative Agreements to the Note
Holders plus Make-Whole Amount, if any.

          SECTION 2.11. Lessee's Assumption of Equipment Notes. If, in
accordance with Section 17.5.2 of the Lease and Section 11.6 of the
Participation Agreement, Lessee elects to assume Loan Trustee's obligations
hereunder, under the Equipment Notes, and under the other Operative
Agreements by a supplemental indenture reasonably satisfactory to Mortgagee
(which shall contain (a) provisions substantially similar to Sections 6, 7,
8, 10, 11 and 12 of the Lease, and (b) other provisions necessary or
advisable to effectuate such assumption), then, upon delivery of such
supplemental indenture, Guarantor's delivery of a guarantee of the
Equipment Notes and other amounts owing to the Note Holders and the other
Mortgage Indemnitees substantially in the form of the Guarantee, Lessee's
counsel's delivery of an opinion to the effect that such assumption has
been duly and validly effected, and compliance with all other requirements
of Section 11.6 of the Participation Agreement and Section 1(j) of the Note
Purchase Agreement, Owner Trustee shall be released and discharged from any
further obligations hereunder and under the Equipment Notes and all other
Operative Documents, and Owner Participant shall be released and discharged
from any further obligations under the Participation Agreement and any
other Operative Document to which it is a party, except with respect to any
obligations that accrued before the release date.

          SECTION 2.12. Voluntary Redemptions of Equipment Notes. All (but
not less than all) of the Equipment Notes may be redeemed at the option of
the Owner Trustee in connection with a transaction described in, and
subject to the terms and conditions of, Section 11 of the Participation
Agreement, upon at least 30 days' revocable written notice to the Loan
Trustee and the Note Holders. The Equipment Notes shall be redeemed in
whole at a redemption price equal to the 100% of the unpaid Original Amount
thereof, together with accrued interest thereon to the date of redemption
and all other amounts payable hereunder or under the Participation
Agreement and a Make-Whole Amount, if any.

<PAGE>

                                                                          9

          SECTION 2.13. Redemptions; Notice of Redemption.

          (a) Neither any redemption of any Equipment Note nor any purchase
by the Owner Trustee of any Equipment Note may be made except to the extent
and in the manner expressly permitted by this Trust Indenture. No purchase
of any Equipment Note may be made by the Loan Trustee.

          (b) Upon notice thereof, notice of redemption or purchase with
respect to the Equipment Notes shall be given by the Loan Trustee by
first-class mail, postage prepaid, mailed not less than 25 nor more than 60
days prior to the applicable redemption date, to each Note Holder of such
Equipment Notes to be redeemed or purchased, at such Note Holder's address
appearing in the Equipment Note Register; provided that, in the case of a
redemption to be made pursuant to Section 2.10(b) or Section 2.12, such
notice shall be revocable and shall be deemed revoked in the event that the
Lease does not in fact terminate on the specified termination date or if
notice of such redemption shall have been given in connection with a
refinancing of Equipment Notes and the Loan Trustee receives written notice
of such revocation from Lessee or the Owner Trustee not later than three
days prior to the redemption date. All notices of redemption shall state:
(1) the redemption date, (2) the applicable basis for determining the
redemption price, (3) that on the redemption date, the redemption price
will become due and payable upon each such Equipment Note, and that, if any
such Equipment Notes are then outstanding, interest on such Equipment Notes
shall cease to accrue on and after such redemption date, and (4) the place
or places where such Equipment Notes are to be surrendered for payment of
the redemption price.

          (c) On or before the redemption date, the Owner Trustee (or any
person on behalf of the Owner Trustee) shall, to the extent an amount equal
to the redemption price for the Equipment Notes to be redeemed or purchased
on the redemption date shall not then be held in the Collateral, deposit or
cause to be deposited with the Loan Trustee by 12:00 noon on the redemption
date in immediately available funds the redemption price of the Equipment
Notes to be redeemed or purchased.

          (d) Notice of redemption or purchase having been given as
aforesaid (and not deemed revoked as contemplated in the proviso to Section
2.13(b)), the Equipment Notes to be redeemed or purchased shall, on the
redemption date, become due and payable at the Corporate Trust Office of
the Loan Trustee or at any office or agency maintained for such purposes
pursuant to Section 2.07, and from and after such redemption date (unless
there shall be a default in the payment of the redemption price) any such
Equipment Notes then outstanding shall cease to bear interest. Upon
surrender of any such Equipment Note for redemption or purchase in
accordance with said notice, such Equipment Note shall be redeemed at the
redemption price. If any Equipment Note called for redemption or purchase
shall not be so paid upon surrender thereof for redemption, the principal
amount thereof shall, until paid, continue to bear interest from the
applicable redemption date at the interest rate in effect for such
Equipment Note as of such redemption date.

          SECTION 2.14. Option to Purchase Equipment Notes. Either the
Owner Trustee or the Owner Participant may, upon the events and subject to
the terms and conditions and for the price set forth in this Section 2.14,
purchase all but not less than all of the Equipment Notes outstanding
hereunder, and each Note Holder agrees that it will, upon such events and
subject to such terms and conditions and upon receipt of such price, sell,
assign, transfer and convey to such purchaser or its nominee (without
recourse or warranty of any kind except as to its title to the Equipment
Notes and except against Liens on such Equipment Notes arising by, through
or under such holder), all of the right, title and interest of such Note
Holder in and to the

<PAGE>

                                                                         10

Collateral, this Trust Indenture and the Equipment Notes held by it, and
such purchaser or its nominee shall assume all of such holder's obligations
under the Participation Agreement and hereunder.

          Such option to purchase the Equipment Notes may be exercised by
the Owner Trustee or the Owner Participant upon any of the following
events, and, in any such event, the purchase price thereof shall equal for
each Equipment Note the aggregate unpaid Original Amount thereof, plus
accrued and unpaid interest thereon to the date of purchase and all other
amounts (other than the Make-Whole Amount, except as provided in the next
sentence) then payable hereunder or under the Participation Agreement to
the holder thereof. Such option to purchase the Equipment Notes may be
exercised: (i) upon an Mortgage Event or (ii) in the event there shall have
occurred and be continuing a Lease Event of Default, provided that if such
option is exercised pursuant to this clause (ii) at a time when there shall
have occurred and be continuing for less than 120 days a Lease Event of
Default, the purchase price thereof shall equal the price provided in the
preceding sentence plus the Make-Whole Amount, if any.

          Such option to purchase the Equipment Notes may be exercised by
the Owner Trustee or the Owner Participant giving written notice of its
irrevocable election of such option to the Loan Trustee, which notice shall
specify a date for such purchase not more than 30 days or less than 15 days
after the date of such notice. The Loan Trustee shall not exercise any of
the remedies hereunder or, without the consent of the Owner Trustee or the
Owner Participant, under the Lease, during the period from the time that a
notice of exercise by the Owner Participant of such option is given until
the date on which such purchase is required to occur pursuant to the terms
of the preceding sentence.

          If the Owner Trustee or the Owner Participant on or before the
date of such purchase shall so request, the Note Holders will comply with
all the provisions of Section 2.07 to enable new Equipment Notes to be
issued to the Owner Trustee or the Owner Participant or its nominee in such
denominations as the Owner Trustee or the Owner Participant shall request.
All taxes, charges and expenses required pursuant to Section 2.09 in
connection with the issuance of such new Equipment Note shall be borne by
the Owner Participant.

          SECTION 2.15. Subordination.

          (a) The Owner Trustee and, by acceptance of its Equipment Notes
of any Series, each Note Holder of such Series, hereby agree that no
payment or distribution shall be made on or in respect of the Secured
Obligations owed to such Note Holder of such Series, including any payment
or distribution of cash, property or securities after the commencement of a
proceeding of the type referred to in Section 4.02(g) hereof, except as
expressly provided in Article III hereof.

          (b) By the acceptance of its Equipment Notes of any Series (other
than Series G), each Note Holder of such Series agrees that in the event
that such Note Holder, in its capacity as a Note Holder, shall receive any
payment or distribution on any Secured Obligations in respect of such
Series which it is not entitled to receive under this Section 2.15 or
Article III hereof, it will hold any amount so received in trust for the
Senior Holder (as defined in Section 2.15(c) hereof) and will forthwith
turn over such payment to the Loan Trustee in the form received to be
applied as provided in Article III hereof.

          (c) As used in this Section 2.15, the term "Senior Holder" shall
mean (i) the Note Holders of Series G until the Secured Obligations in
respect of Series G Equipment Notes have been paid in full, and (ii) after
the Secured Obligations in respect of Series G Equipment

<PAGE>

                                                                         11

Notes have been paid in full, the Note Holders of Series C until the
Secured Obligations in respect of Series C Equipment Notes have been paid
in full.

                                ARTICLE III

                  RECEIPT, DISTRIBUTION AND APPLICATION OF
                   INCOME FROM THE TRUST INDENTURE ESTATE

          SECTION 3.01. Basic Rent Distribution. Except as otherwise
provided in Section 3.03 hereof, each installment of Basic Rent, any
payment of interest on overdue installments of Basic Rent and any payment
received by the Loan Trustee pursuant to Section 4.03 hereof shall be
promptly distributed in the following order of priority:

          First, (i) so much of such installment or payment as shall be
required to pay in full the aggregate amount of the payment or payments of
Original Amount and interest and other amounts (as well as any interest on
any overdue Original Amount and, to the extent permitted by applicable law,
on any overdue interest and any other overdue amounts) then due under all
Series G Equipment Notes shall be distributed to the Note Holders of Series
G ratably, without priority of one over the other, in the proportion that
the amount of such payment or payments then due under each Series G
Equipment Note bears to the aggregate amount of the payments then due under
all Series G Equipment Notes; and

          (ii) after giving effect to paragraph (i) above, so much of such
installment or payment remaining as shall be required to pay in full the
aggregate amount of the payment or payments of Original Amount and interest
and other amounts (as well as any interest on any overdue Original Amount
and, to the extent permitted by applicable law, on any overdue interest and
any other overdue amounts) then due under all Series C Equipment Notes
shall be distributed to the Note Holders of Series C ratably, without
priority of one over the other, in the proportion that the amount of such
payment or payments then due under each Series C Equipment Note bears to
the aggregate amount of the payments then due under all Series C Equipment
Notes; and

          Second, the balance, if any, of such installment remaining
thereafter shall be distributed to the Owner Trustee; provided, however,
that if an Event of Default shall have occurred and be continuing, then
such balance shall not be distributed as provided in this clause "Second"
but shall be held by the Loan Trustee as part of the Collateral and
invested in accordance with Section 5.09 hereof until whichever of the
following shall first occur: (i) all Events of Default shall have been
cured or waived, in which event such balance shall be distributed as
provided in this clause "Second" without reference to this proviso, (ii)
Section 3.03 hereof shall be applicable, in which event such balance shall
be distributed in accordance with the provisions of such Section 3.03, or
(iii) the 120th day after the receipt of such payment in which case such
payment shall be distributed as provided in this clause "Second" without
reference to this proviso.

          SECTION 3.02. Event of Loss; Replacement; Voluntary Termination;
Refinancing. Except as otherwise provided in Section 3.03 hereof, any
payments received by the Loan Trustee (i) with respect to the Aircraft as
the result of an Event of Loss, (ii) pursuant to a voluntary termination of
the Lease pursuant to Section 9 or Section 17.3 thereof, or (iii) in
connection with a refinancing of the Equipment Notes pursuant to Section 11
of the Participation Agreement shall be applied to redemption of the
Equipment Notes and to all other amounts payable to the Loan Trustee or any
Note Holder hereunder or under the Participation Agreement by applying such
funds in the following order of priority:

<PAGE>

                                                                         12

          First, (a) to reimburse the Loan Trustee and the Note Holders for
any reasonable costs or expenses incurred in connection with such
redemption for which they are entitled to reimbursement, or indemnity by
Lessee, under the Operative Agreements and then (b) to pay any other
amounts then due to the Loan Trustee, the Note Holders and the other
Mortgage Indemnitees under this Trust Indenture, the Participation
Agreement or the Equipment Notes;

          Second, (i) to pay the amounts specified in paragraph (i) of
clause "Third" of Section 3.03 hereof plus Make-Whole Amount, if any, then
due and payable in respect of the Series G Equipment Notes; and

          (ii) after giving effect to paragraph (i) above, to pay the
amounts specified in paragraph (ii) of clause "Third" of Section 3.03
hereof plus Make-Whole Amount, if any, then due and payable in respect of
the Series C Equipment Notes; and

          Third, as provided in clause "Fourth" of Section 3.03 hereof,

provided, however, that if a Replacement Airframe or Replacement Engine
shall be substituted for the Airframe or Engine subject to such Event of
Loss as provided in Section 10 of the Lease and in accordance with Section
5.06 hereof, any insurance, condemnation or similar proceeds which result
from such Event of Loss and are paid over to the Loan Trustee shall be held
by the Loan Trustee as permitted by Section 6.04 hereof (provided that such
moneys shall be invested as provided in Section 5.09 hereof) as additional
security for the obligations of Lessee under the Lessee Operative
Agreements and, unless otherwise applied pursuant to the Lease, such
proceeds (and any related investment earnings) shall be released to Lessee
at Lessee's written request upon the release of such damaged Airframe or
Engine and the replacement thereof as provided in the Lease.

          SECTION 3.03. Payments After Event of Default. Except as
otherwise provided in Section 3.04 hereof, all payments received and
amounts held or realized by the Loan Trustee (including any amounts
realized by the Loan Trustee from the exercise of any remedies pursuant to
Section 15 of the Lease or Article IV hereof) after both an Event of
Default shall have occurred and be continuing and the Equipment Notes shall
have become due and payable pursuant to Section 4.04(b) hereof, as well as
all payments or amounts then held by the Loan Trustee as part of the
Collateral, shall be promptly distributed by the Loan Trustee in the
following order of priority:

          First, so much of such payments or amounts as shall be required
to (i) reimburse the Loan Trustee for any compensation, tax, expense or
other loss (including, without limitation, all amounts to be expended at
the expense of, or charged upon the tolls, rents, revenues, issues,
products and profits of, the property included in the Collateral (all such
property being herein called the "Mortgaged Property") pursuant to Section
4.05(b) hereof) incurred by the Loan Trustee (to the extent not previously
reimbursed), the expenses of any sale, taking or other proceeding,
reasonable attorneys' fees and expenses, court costs, and any other
expenditures incurred or expenditures or advances made by the Loan Trustee
or the Note Holders in the protection, exercise or enforcement of any
right, power or remedy or any damages sustained by the Loan Trustee or any
Note Holder, liquidated or otherwise, upon such Event of Default shall be
applied by the Loan Trustee as between itself and the Note Holders in
reimbursement of such expenses and any other expenses for which the Loan
Trustee or the Note Holders are entitled to reimbursement under any
Operative Agreement and (ii) to pay all amounts payable to the other
Mortgage Indemnitees hereunder and under the Participation Agreement and
the Lease; and in the case the aggregate amount to be so distributed is
insufficient to pay as aforesaid in clauses (i)

<PAGE>

                                                                         13

and (ii), then ratably, without priority of one over the other, in
proportion to the amounts owed each hereunder;

          Second, so much of such payments or amounts remaining as shall be
required to reimburse the then existing or prior Note Holders for payments
made pursuant to Section 5.03 hereof (to the extent not previously
reimbursed) shall be distributed to such then existing or prior Note
Holders ratably, without priority of one over the other, in accordance with
the amount of the payment or payments made by each such then existing or
prior Note Holder pursuant to said Section 5.03 hereof;

          Third, (i) so much of such payments or amounts remaining as shall
be required to pay in full the aggregate unpaid Original Amount of all
Series G Equipment Notes, and the accrued but unpaid interest and other
amounts due thereon and all other Secured Obligations in respect of the
Series G Equipment Notes to the date of distribution, shall be distributed
to the Note Holders of Series G, and in case the aggregate amount so to be
distributed shall be insufficient to pay in full as aforesaid, then
ratably, without priority of one over the other, in the proportion that the
aggregate unpaid Original Amount of all Series G Equipment Notes held by
each holder plus the accrued but unpaid interest and other amounts due
hereunder or thereunder to the date of distribution, bears to the aggregate
unpaid Original Amount of all Series G Equipment Notes held by all such
holders plus the accrued but unpaid interest and other amounts due thereon
to the date of distribution;

          (ii) after giving effect to paragraph (i) above, so much of such
payments or amounts remaining as shall be required to pay in full the
aggregate unpaid Original Amount of all Series C Equipment Notes, and the
accrued but unpaid interest and other amounts due thereon and all other
Secured Obligations in respect of the Series C Equipment Notes to the date
of distribution, shall be distributed to the Note Holders of Series C, and
in case the aggregate amount so to be distributed shall be insufficient to
pay in full as aforesaid, then ratably, without priority of one over the
other, in the proportion that the aggregate unpaid Original Amount of all
Series C Equipment Notes held by each holder plus the accrued but unpaid
interest and other amounts due hereunder or thereunder to the date of
distribution, bears to the aggregate unpaid Original Amount of all Series C
Equipment Notes held by all such holders plus the accrued but unpaid
interest and other amounts due thereon to the date of distribution; and

          Fourth, the balance, if any, of such payments or amounts
remaining thereafter shall be distributed to the Owner Trustee.

          No Make-Whole Amount shall be due and payable on the Equipment
Notes as a consequence of the acceleration of the Equipment Notes as a
result of an Event of Default.

          SECTION 3.04. Certain Payments.

          (a) Any payments received by the Loan Trustee for which no
provision as to the application thereof is made in this Trust Indenture and
for which such provision is made in the Lease, the Participation Agreement
or any other Operative Agreement shall be applied forthwith to the purpose
for which such payment was made in accordance with the terms of the Lease,
the Participation Agreement or such other Operative Agreement, as the case
may be.

          (b) Notwithstanding anything to the contrary in this Article III,
the Loan Trustee will distribute promptly upon receipt any indemnity
payment received by it from the Owner Trustee or Lessee in respect of the
Loan Trustee in its individual capacity, any Note Holder, or any other
Mortgage Indemnitee, in each case whether pursuant to Section 9 of the

<PAGE>

                                                                         14

Participation Agreement or as Supplemental Rent (other than clauses (2),
(3), (4) and (5) of the definition thereof), directly to the Person
entitled thereto. Any payment received by the Loan Trustee as Supplemental
Rent under clauses (2), (3), (4) and (5) of the definition thereof shall be
distributed to the Subordination Agent to be distributed in accordance with
the terms of the Intercreditor Agreement, and any payment received by the
Loan Trustee under clause (c) of the third paragraph of Section 2.02 shall
be distributed directly to the Persons entitled thereto.

          (c) Not Used.

          (d) Notwithstanding anything to the contrary contained in Article
III, any amounts received by the Loan Trustee which constitute Excluded
Payments shall be distributed promptly upon receipt by the Loan Trustee
directly to the Person or Persons entitled thereto.

          (e) Notwithstanding any provision of this Trust Indenture to the
contrary, any amounts held by the Loan Trustee pursuant to the terms of the
Lease [or any Permitted Sublease assignment] shall be held by the Loan
Trustee as security for the obligations of Lessee under the Lessee
Operative Agreements and, if and when required by the Lease, paid and/or
applied in accordance with the applicable provisions of the Lease.

          SECTION 3.05. Other Payments. Any payments received by the Loan
Trustee for which no provision as to the application thereof is made in the
Lease, the Participation Agreement, elsewhere in this Trust Indenture or in
any other Operative Agreement shall be distributed by the Loan Trustee to
the extent received or realized at any time (i) prior to the payment in
full of all Secured Obligations, in the order of priority specified in
Section 3.01 hereof subject to the proviso thereto, and (ii) after payment
in full of all Secured Obligations, in the following order of priority:

          First, to the extent payments or amounts described in clause
"First" of Section 3.03 hereof are otherwise obligations of Lessee under
the Operative Agreements or for which Lessee is obligated to indemnify
against thereunder, in the manner provided in clause "First" of Section
3.03 hereof, and

          Second, in the manner provided in clause "Fourth" of Section 3.03
hereof.

          Further, and except as otherwise provided in Sections 3.02, 3.03
and 3.04 hereof, all payments received and amounts realized by the Loan
Trustee under the Lease or otherwise with respect to the Aircraft
(including, without limitation, all amounts realized upon the sale or
re-lease of the Aircraft after the termination of the Lease with respect
thereto), to the extent received or realized at any time after payment in
full of all Secured Obligations shall be distributed by the Loan Trustee in
the order of priority specified in clause (ii) of the immediately preceding
sentence of this Section 3.05.

          SECTION 3.06. Payments to Owner Trustee. Any amounts distributed
hereunder by the Loan Trustee to the Owner Trustee shall be paid to the
Owner Trustee (within the time limits contemplated by Section 2.04(a)) by
wire transfer of funds of the type received by the Loan Trustee at such
office and to such account or accounts of such entity or entities as shall
be designated by notice from the Owner Trustee to the Loan Trustee from
time to time. The Owner Trustee hereby notifies the Loan Trustee that
unless and until the Loan Trustee receives notice to the contrary from the
Owner Trustee, all amounts to be distributed to the Owner Trustee pursuant
to clause "Second" of Section 3.01 hereof shall be distributed by wire
transfer of funds of the type received by the Loan Trustee to the Owner
Participant's account (within the time limits contemplated by Section
2.04(a)) specified in Schedule I to the Participation Agreement.

<PAGE>

                                                                         15

          SECTION 3.07. Application of Payments Under Guarantee. All
payments received by the Loan Trustee pursuant to the Guarantee shall be
distributed forthwith by the Loan Trustee in the same order of priority,
and in the same manner, as it would have distributed the payment in respect
of which such payment under the Guarantee was received.

                                 ARTICLE IV

                   COVENANTS OF OWNER TRUSTEE; EVENTS OF
                     DEFAULT; REMEDIES OF LOAN TRUSTEE

          SECTION 4.01. Covenants of Owner Trustee. The Owner Trustee
hereby covenants and agrees (the covenants and agreements only in clause
(b) below being made by the Owner Trustee in its individual capacity) as
follows:

          (a) the Owner Trustee will duly and punctually pay the Original
Amount of, Make-Whole Amount, if any, and interest on and other amounts due
under the Equipment Notes and hereunder in accordance with the terms of the
Equipment Notes and this Trust Indenture and all amounts, if any, payable
by it to the Note Holders under the Participation Agreement or Section 9 of
the Lease;

          (b) the Owner Trustee in its individual capacity covenants and
agrees that it shall not, directly or indirectly, cause or permit to exist
a Lessor Lien attributable to it in its individual capacity with respect to
the Aircraft or any other portion of the Trust Estate; that it will
promptly, at its own expense, take such action as may be necessary to duly
discharge such Lessor Lien attributable to it in its individual capacity;
and that it will make restitution to the Trust Estate for any actual
diminution of the assets of the Trust Estate resulting from such Lessor
Liens attributable to it in its individual capacity;

          (c) in the event the Owner Trustee shall have Actual Knowledge of
an Event of Default, a Default or an Event of Loss, the Owner Trustee will
give prompt written notice of such Event of Default, Default or Event of
Loss to the Loan Trustee, each Note Holder, Lessee and the Owner
Participant;

          (d) the Owner Trustee will furnish to the Loan Trustee, promptly
upon receipt thereof, duplicates or copies of all reports, notices,
requests, demands, certificates and other instruments furnished to the
Owner Trustee under the Lease, including, without limitation, a copy of
each report or notice received pursuant to Section 9.1 and Section E of
Annex D of the Lease to the extent that the same shall not have been
furnished to the Loan Trustee pursuant to the Lease;

          (e) except pursuant to the Operative Agreements or with the
consent of the Loan Trustee (acting pursuant to instructions given in
accordance with Section 9.01 hereof), the Owner Trustee will not contract
for, create, incur, assume or suffer to exist any Debt, and will not
guarantee (directly or indirectly or by an instrument having the effect of
assuring another's payment or performance of any obligation or capability
of so doing, or otherwise), endorse or otherwise be or become contingently
liable, directly or indirectly, in connection with the Debt of any other
person; and

          (f) the Owner Trustee will not enter into any business or other
activity other than the business of owning the Aircraft, the leasing
thereof to Lessee and the carrying out of the

<PAGE>

                                                                         16

transactions contemplated hereby and by the Lease, the Participation
Agreement, the Trust Agreement and the other Operative Agreements.

          SECTION 4.02. Event of Default. "Event of Default" means any of
the following events (whatever the reason for such Event of Default and
whether such event shall be voluntary or involuntary or come about or be
effected by operation of Law or pursuant to or in compliance with any
judgment, decree or order of any court or any order, rule or regulation of
any administrative or governmental body):

          (a) any Lease Event of Default (provided that any such Lease
Event of Default caused solely by a failure of Lessee to pay to the Owner
Trustee or the Owner Participant when due any amount that is included in
the definition of Excluded Payments shall not constitute an Event of
Default unless notice is given by the Owner Trustee to the Loan Trustee
that such failure shall constitute an Event of Default); or

          (b) the failure of the Owner Trustee to pay when due any payment
of Original Amount of, interest on, Make-Whole Amount, if any, or other
amount due and payable under any Equipment Note or hereunder (other than
any such failure arising by virtue of a tax withheld pursuant to Section
2.04(b) hereof or as a result of a Lease Event of Default or a Lease
Default) and such failure shall have continued unremedied for five Business
Days in the case of any payment of Original Amount or interest or
Make-Whole Amount, if any, thereon and, in the case of any other amount,
for ten Business Days after the Owner Trustee and the Owner Participant
receive written demand from the Loan Trustee or any Note Holder; or

          (c) any Lien required to be discharged by the Owner Trustee, in
its individual capacity pursuant to Section 4.01(b) hereof or in its
individual or trust capacity pursuant to Section 7.2.1 of the Participation
Agreement, or by the Owner Participant pursuant to Section 7.2.1 of the
Participation Agreement shall remain undischarged for a period of 30 days
after the Owner Trustee and the Owner Participant shall have received
written notice from the Loan Trustee or any Note Holder of such Lien; or

          (d) any representation or warranty made by the Owner Participant
or the Owner Trustee herein, in the Participation Agreement or in any
certificate furnished by the Owner Participant or the Owner Trustee to the
Loan Trustee or any Note Holder in connection with the transactions
contemplated by the Operative Agreements or by any Person guaranteeing or
supporting the obligations of the Owner Participant under the Operative
Agreements in any related guarantee or support agreement (an "OP
Guarantor") shall prove to have been false or incorrect when made in any
material respect and continues to be material and adverse to the interests
of the Loan Trustee or the Note Holders, and if such misrepresentation is
capable of being corrected and if such correction is being sought
diligently, such misrepresentation shall not have been corrected within 60
days (or, without affecting Section 4.02(f) hereof, in the case of the
representations made in Section 6.2.6 of the Participation Agreement as to
the citizenship of the Owner Trustee in its individual capacity or of the
Owner Participant, respectively, as soon as is reasonably practicable but
in any event within 60 days) following notice thereof from the Loan Trustee
or any Note Holder to the Owner Trustee and the Owner Participant or an OP
Guarantor, as the case may be; or

          (e) other than as provided in (c) above or (f) below, any failure
by the Owner Trustee or Owner Participant to observe or perform any other
covenant or obligation of the Owner Trustee or Owner Participant, as the
case may be, for the benefit of the Loan Trustee or the Note Holders
contained in the Participation Agreement, Section 4.2.1 of the Trust
Agreement, the Equipment Notes or this Trust Indenture or any failure of an
OP Guarantor to

<PAGE>

                                                                         17

observe or perform any covenant or obligation of such Person contained in
its guarantee or support agreement which is not remedied within a period of
60 days after notice thereof has been given to the Owner Trustee, the Owner
Participant or an OP Guarantor, as the case may be; or

          (f) if at any time when the Aircraft is registered under the laws
of the United States, the Owner Participant shall not be a Citizen of the
United States, and as the result thereof the registration of the Aircraft
under the Federal Aviation Act, and regulations then applicable thereunder,
shall cease to be effective; provided that no Event of Default shall be
deemed to have occurred under this paragraph (f) unless such circumstances
continue unremedied for more than 60 days after the Owner Participant has
Actual Knowledge of the state of facts that resulted in such
ineffectiveness and of such loss of citizenship; or

          (g) at any time either (i) the commencement of an involuntary
case or other proceeding in respect of the Owner Participant, the Owner
Trustee or the Trust Estate under the federal bankruptcy Laws, as now
constituted or hereafter amended, or any other applicable federal or state
bankruptcy, insolvency or other similar Law in the United States or seeking
the appointment of a receiver, liquidator, assignee, custodian, trustee,
sequestrator (or similar official) of the Owner Participant, an OP
Guarantor, the Owner Trustee, the Trust or the Trust Estate or for all or
substantially all of its property, or seeking the winding-up or liquidation
of its affairs and the continuation of any such case or other proceeding
undismissed and unstayed for a period of 60 consecutive days; or (ii) the
commencement by the Owner Participant, the Owner Trustee, the Trust or the
Trust Estate of a voluntary case or proceeding under the federal bankruptcy
Laws, as now constituted or hereafter amended, or any other applicable
federal or state bankruptcy, insolvency or other similar Law in the United
States, or the consent by the Owner Participant, an OP Guarantor, the Owner
Trustee, the Trustee or the Trust Estate to the appointment of or taking
possession by a receiver, liquidator, assignee, trustee, custodian,
sequestrator (or other similar official) of the Owner Participant, such OP
Guarantor, the Owner Trustee, the Trust, or the Trust Estate or for all or
substantially all of its property, or the making by the Owner Participant,
an OP Guarantor, the Owner Trustee, the Trust or the Trust Estate of any
assignment for the benefit of creditors or the Owner Participant, an OP
Guarantor or the Owner Trustee shall take any action to authorize any of
the foregoing; provided, however, that an event referred to in this Section
4.02(g) with respect to the Owner Participant or an OP Guarantor shall not
constitute an Event of Default if within 30 days of the commencement of the
case or proceeding a final non-appealable order, judgment or decree shall
be entered in such case or proceeding by a court or a trustee, custodian,
receiver or liquidator, to the effect that no part of the Trust Estate
(except for the Owner Participant's beneficial interest therein) and no
right, title or interest under the Collateral shall be included in, or be
subject to, any declaration or adjudication of, or proceedings with respect
to, the bankruptcy, insolvency or liquidation of the Owner Participant or
such OP Guarantor referred to in this Section 4.02(g).

          SECTION 4.03. Certain Rights. The Loan Trustee shall give the
Note Holders, the Owner Trustee and the Owner Participant prompt written
notice of any Event of Default of which the Loan Trustee has Actual
Knowledge and, if any such Event of Default results from a Lease Event of
Default, shall give the Note Holders, the Owner Trustee and the Owner
Participant not less than ten Business Days' prior written notice of the
date (the "Enforcement Date") on or after which the Loan Trustee may
commence and consummate the exercise of any remedy or remedies described in
Section 4.04, 4.05 or 4.06 hereof, or the exercise of any remedy or
remedies pursuant to the provisions of Section 15 of the Lease. If an Event
of Default shall have occurred and be continuing, the Owner Trustee shall
have the following rights hereunder, any of which may be exercised directly
by the Owner Participant.

<PAGE>

                                                                         18

          If as a result of the occurrence of an Event of Default in
respect of the nonpayment by Lessee of Basic Rent due under the Lease, the
Loan Trustee shall have insufficient funds so as to make any payment of the
Original Amount and interest on any Equipment Note on the day it becomes
due and payable, the Owner Trustee or the Owner Participant may, but shall
not be obligated to, pay the Loan Trustee prior to the Enforcement Date, in
the manner provided in Section 2.05 hereof, for application in accordance
with Section 3.01 hereof, an amount equal to the portion of the Original
Amount and interest (including interest, if any, on any overdue payments of
such portion of Original Amount and interest) then due and payable on the
Equipment Notes, and, unless the Owner Trustee has cured Events of Default
in respect of payments of Basic Rent on each of the six immediately
preceding Basic Rent payment dates, or the Owner Trustee has cured twelve
previous Events of Default in respect of payments of Basic Rent, such
payment by the Owner Trustee shall, solely for purposes of this Trust
Indenture be deemed to cure any Event of Default which would otherwise have
arisen on account of the nonpayment by Lessee of such, installment of Basic
Rent (but not any other Default or Event of Default which shall have
occurred and be continuing).

          If any Event of Default (other than in respect of the nonpayment
of Basic Rent by Lessee) which can be cured has occurred, the Owner Trustee
or the Owner Participant may, but shall not be obligated to, cure such
Event of Default prior to the Enforcement Date as is necessary to
accomplish the observance or performance of the defaulted covenant,
condition or agreement.

          Except as hereinafter in this Section 4.03 provided, the Owner
Trustee shall not, as a result of exercising the right to cure any such
Event of Default, obtain any Lien on any of the Mortgaged Property or any
Rent payable under the Lease for or on account of costs or expenses
incurred in connection with the exercise of such right, nor shall any claim
of the Owner Trustee against Lessee or any other party for the repayment of
such costs or expenses impair the prior right and security interest of the
Loan Trustee in and to the Mortgaged Property. Upon any payment by the
Owner Trustee or the Owner Participant pursuant to the first or second
preceding paragraphs of this Section 4.03, the Owner Trustee or the Owner
Participant, as the case may be, shall be subrogated to the rights of the
Loan Trustee and the Note Holders in respect of the Basic Rent which was
overdue at the time of such payment and interest payable by Lessee on
account of its being overdue and any Supplemental Rent in respect of the
reimbursement of amounts paid by Owner Trustee pursuant to the immediately
preceding paragraph (but in either case shall have no rights as a secured
party hereunder), and thereafter, the Owner Trustee or the Owner
Participant, as the case may be, shall be entitled to receive such overdue
Basic Rent or Supplemental Rent, as the case may be, and interest thereon
(in each case as long as the application thereof shall not give rise to an
Event of Default hereunder) upon receipt thereof by the Loan Trustee (and
shall be entitled to bring an action against Lessee to enforce such
payment); provided, however, that (i) if the Original Amount and interest
on the Equipment Notes shall have become due and payable pursuant to
Section 4.04(b) hereof, such subrogation shall, until the Secured
Obligations shall have been paid in full, be subordinate to the rights of
the Loan Trustee, the Note Holders and the Mortgage Indemnitees in respect
of such payment of overdue Basic Rent, Supplemental Rent and such interest
and (ii) the Owner Trustee shall not otherwise attempt or be entitled to
seek to recover any such amount paid by it on behalf of the Lessee pursuant
to this Section 4.03 except by demanding of the Lessee payment of such
amount, or by commencing an action at law against the Lessee and obtaining
and enforcing a judgment against the Lessee for the payment of such amount
or taking appropriate action in a pending action at law against the Lessee
(provided, that at no time while an Event of Default shall have occurred
and be continuing shall any such demand be made or shall any such action be
commenced (or continued) and any amounts nevertheless received by the Owner
Trustee in respect thereof shall be held in trust for the benefit of, and
promptly paid to, the Loan Trustee for

<PAGE>

                                                                         19

distribution as provided in Section 3.03 hereof). Neither the Owner trustee
nor the Owner Participant shall have the right to cure any Lease Event of
Default or Lease Default except as specified in this Section 4.03.

          SECTION 4.04. Remedies.

          (a) Subject to the provisions of Section 2.14 hereof, if an Event
of Default shall have occurred and be continuing and so long as the same
shall continue unremedied, then and in every such case the Loan Trustee
may, subject to the following paragraph of this Section 4.04(a), exercise
any or all of the rights and powers and pursue any and all of the remedies
pursuant to this Article IV and shall have and may exercise all of the
rights and remedies of a secured party under the Uniform Commercial Code
and, in the event such Event of Default is also a Lease Event of Default,
any and all of the remedies pursuant to Section 15 of the Lease and may
take possession of all or any part of the properties covered or intended to
be covered by the Lien created hereby or pursuant hereto and may exclude
the Owner Participant, the Owner Trustee and Lessee and all persons
claiming under any of them wholly or partly therefrom, provided, that the
Loan Trustee shall give the Owner Trustee and the Owner Participant twenty
days' prior written notice of its intention to sell the Aircraft. Without
limiting any of the foregoing, it is understood and agreed that the Loan
Trustee may exercise any right of sale of the Aircraft available to it,
even though it shall not have taken possession of the Aircraft and shall
not have possession thereof at the time of such sale.

          Anything in this Trust Indenture to the contrary notwithstanding,
the Loan Trustee shall not be entitled to exercise any remedy hereunder as
a result of an Event of Default which arises solely by reason of one or
more events or circumstances which constitute a Lease Event of Default
unless the Loan Trustee as security assignee of the Owner Trustee shall
have declared the Lease in default and exercised or concurrently be
exercising one or more of the remedies provided for in Section 15 of the
Lease to terminate the Lease or take possession and/or sell the Aircraft;
provided, however, that such requirement to exercise one or more of such
remedies under the Lease shall not apply in circumstances where the Loan
Trustee is, and has been, for a continuous period in excess of 60 days or
such other period as may be specified in Section 1110(a)(1)(A) of the
Bankruptcy Code (such 60-day or other period being the "Section 1110
Period"), involuntarily stayed or prohibited by applicable law or court
order from exercising such remedies under the Lease (a "Continuous Stay
Period"); provided further, however, that the requirement to exercise one
or more of such remedies under the Lease shall nonetheless be applicable
during a Continuous Stay Period subsequent to the expiration of the Section
1110 Period to the extent that the continuation of such Continuous Stay
Period subsequent to the expiration of the Section 1110 Period (A) results
from an agreement by the trustee or the debtor- in-possession in such
proceeding during the Section 1110 Period with the approval of the relevant
court to perform the Lease in accordance with Section 1110(a)(1)(A) of the
Bankruptcy Code and such trustee or debtor-in-possession continues to
perform as required by Section 1110(a)(1)(A-B) of the Bankruptcy Code or
(B) is an extension of the Section 1110 Period with the consent of the Loan
Trustee pursuant to Section 1110(b) of the Bankruptcy Code or (C) results
from Lessee's assumption during the Section 1110 Period with the approval
of the relevant court of the Lease pursuant to Section 365 of the
Bankruptcy Code or (D) is the consequence of the Loan Trustee's own failure
to give any requisite notice to any Person. In the event that the
applicability of Section 1110 of the Bankruptcy Code to the Aircraft is
being contested by Lessee in judicial proceedings, so long as the Loan
Trustee fails to participate in such proceedings, the Owner Trustee shall
have the right (without affecting in any way any rights or remedy of the
Loan Trustee hereunder) to participate in such proceedings.

<PAGE>

                                                                         20

          It is expressly understood and agreed that, subject only to the
immediately preceding paragraph, the inability, described in such
paragraph, of the Loan Trustee to exercise any right or remedy under the
Lease shall in no event and under no circumstances prevent the Loan Trustee
from exercising any or all of its rights, powers and remedies under this
Trust Indenture, including, without limitation, this Article IV.

          (b) If an Event of Default shall have occurred and be continuing,
then and in every such case the Loan Trustee may (and shall, upon receipt
of a written demand therefor from a Majority in Interest of Note Holders),
subject to Section 4.03 hereof, at any time, by delivery of written notice
or notices to the Owner Trustee and the Owner Participant, declare all the
Equipment Notes to be due and payable, whereupon the unpaid Original Amount
of all Equipment Notes then outstanding, together with accrued but unpaid
interest thereon (without Make-Whole Amount) and other amounts due
thereunder, shall immediately become due and payable without presentment,
demand, protest or notice, all of which are hereby waived; provided that if
an Event of Default referred to in clause (g) of Section 4.02 hereof shall
have occurred or a Lease Event of Default under Section 14 of the Lease
shall have occurred, then and in every such case the unpaid Original Amount
of all Equipment Notes then outstanding, together with accrued but unpaid
interest thereon (without Make-Whole Amount) and other amounts due
thereunder, shall immediately become due and payable without presentment,
demand, protest or notice, all of which are hereby waived.

          This Section 4.04(b), however, is subject to the condition that,
if at any time after the Original Amount of the Equipment Notes shall have
become so due and payable, and before any judgment or decree for the
payment of the money so due, or any thereof, shall be entered, all overdue
payments of interest upon the Equipment Notes and all other amounts payable
under the Equipment Notes (except the Original Amount of the Equipment
Notes which by such declaration shall have become payable) shall have been
duly paid, and every other Default and Event of Default with respect to any
covenant or provision of this Trust Indenture shall have been cured, then
and in every such case a Majority in Interest of Note Holders may (but
shall not be obligated to), by written instrument filed with the Loan
Trustee, rescind and annul the Loan Trustee's declaration and its
consequences; but no such rescission or annulment shall extend to or affect
any subsequent Default or Event of Default or impair any right consequent
thereon.

          (c) Any Note Holder shall be entitled, at any sale pursuant to
Section 15 of the Lease or this Section 4.04, to credit against any
purchase price bid at such sale by such holder all or any part of the
unpaid obligations owing to such Note Holder and secured by the Lien of
this Trust Indenture (but only to the extent that such purchase price would
have been paid to such Note Holder pursuant to Article III hereof if such
purchase price were paid in cash and the foregoing provisions of this
subsection (c) were not given effect).

          (d) In the event of any sale of the Collateral, or any part
thereof, pursuant to any judgment or decree of any court or otherwise in
connection with the enforcement of any of the terms of this Trust
Indenture, the unpaid Original Amount of all Equipment Notes then
outstanding, together with accrued interest thereon, and other amounts due
thereunder, shall immediately become due and payable without presentment,
demand, protest or notice, all of which are hereby waived.

          (e) Notwithstanding anything contained herein, so long as the
Pass-Through Trustee under any Pass-Through Trust Agreement or the
Subordination Agent on its behalf is a Note Holder, the Loan Trustee will
not be authorized or empowered to acquire title to any Mortgaged Property
or take any action with respect to any Mortgaged Property so acquired by it

<PAGE>

                                                                         21

if such acquisition or action would cause any Trust to fail to qualify as a
"grantor trust" for federal income tax purposes.

          SECTION 4.05. Return of Aircraft, Etc.

          (a) If an Event of Default shall have occurred and be continuing,
subject to Sections 4.03 and 4.04 hereof, at the request of the Loan
Trustee, the Owner Trustee shall promptly execute and deliver to the Loan
Trustee such instruments of title and other documents as the Loan Trustee
may deem necessary or advisable to enable the Loan Trustee or an agent or
representative designated by the Loan Trustee, at such time or times and
place or places as the Loan Trustee may specify, to obtain possession of
all or any part of the Mortgaged Property included in the Collateral to
which the Loan Trustee shall at the time be entitled hereunder. If the
Owner Trustee shall for any reason fail to execute and deliver such
instruments and documents after such request by the Loan Trustee, the Loan
Trustee may (i) obtain a judgment conferring on the Loan Trustee the right
to immediate possession and requiring the Owner Trustee to execute and
deliver such instruments and documents to the Loan Trustee, to the entry of
which judgment the Owner Trustee hereby specifically consents to the
fullest extent permitted by applicable law, and (ii) pursue all or part of
such Mortgaged Property wherever it may be found and, in the event that a
Lease Event of Default has occurred and is continuing, may enter any of the
premises of Lessee wherever such Mortgaged Property may be or be supposed
to be and search for such Mortgaged Property and take possession of and
remove such Mortgaged Property. All expenses of obtaining such judgment or
of pursuing, searching for and taking such property shall, until paid, be
secured by the Lien of this Trust Indenture.

          (b) Upon every such taking of possession, the Loan Trustee may,
from time to time, at the expense of the Mortgaged Property, make all such
expenditures for maintenance, use, operation, storage, insurance, leasing,
control, management, disposition, modifications or alterations to and of
the Mortgaged Property, as it may deem proper. In each such case, the Loan
Trustee shall have the right to maintain, use, operate, store, insure,
lease, control, manage, dispose of, modify or alter the Mortgaged Property
and to carry on the business and to exercise all rights and powers of the
Owner Trustee relating to the Mortgaged Property, as the Loan Trustee shall
deem best, including the right to enter into any and all such agreements
with respect to the maintenance, use, operation, storage, insurance,
leasing, control, management, disposition, modification or alteration of
the Mortgaged Property or any part thereof as the Loan Trustee may
determine, and the Loan Trustee shall be entitled to collect and receive
directly all tolls, rents (including Rent), revenues, issues, income,
products and profits of the Mortgaged Property and every part thereof,
except Excluded Payments, without prejudice, however, to the right of the
Loan Trustee under any provision of this Trust Indenture to collect and
receive all cash held by, or required to be deposited with, the Loan
Trustee hereunder. Such tolls, rents (including Rent), revenues, issues,
income, products and profits shall be applied to pay the expenses of the
maintenance, use, operation, storage, insurance, leasing, control,
management, disposition, improvement, modification or alteration of the
Mortgaged Property and of conducting the business thereof, and to make all
payments which the Loan Trustee may be required or may elect to make, if
any, for taxes, assessments, insurance or other proper charges upon the
Mortgaged Property or any part thereof (including the employment of
engineers and accountants to examine, inspect and make reports upon the
properties and books and records of he Owner Trustee), and all other
payments which the Loan Trustee may be required or authorized to make under
any provision of this Trust Indenture, as well as just and reasonable
compensation for the services of the Loan Trustee, and of all persons
properly engaged and employed by the Loan Trustee with respect hereto.

<PAGE>

                                                                         22

          SECTION 4.06. Remedies Cumulative. Each and every right, power
and remedy given to the Loan Trustee specifically or otherwise in this
Trust Indenture shall be cumulative and shall be in addition to every other
right, power and remedy herein specifically given or now or hereafter
existing at Law, in equity or by statute, and each and every right, power
and remedy whether specifically herein given or otherwise existing may be
exercised from time to time and as often and in such order as may be deemed
expedient by the Loan Trustee, and the exercise, or the beginning of the
exercise of any power or remedy shall not be construed to be a waiver of
the right to exercise at the same time or thereafter any other right, power
or remedy. No delay or omission by the Loan Trustee in the exercise of any
right, remedy or power or in the pursuance of any remedy shall impair any
such right, power or remedy or be construed to be a waiver of any default
on the part of the Owner Trustee or Lessee or to be an acquiescence
therein.

          SECTION 4.07. Discontinuance of Proceedings. In case the Loan
Trustee shall have instituted any proceeding to enforce any right, power or
remedy under this Trust Indenture by foreclosure, entry or otherwise, and
such proceedings shall have been discontinued or abandoned for any reason
or shall have been determined adversely to the Loan Trustee, then and in
every such case the Owner Trustee, the Loan Trustee and Lessee shall,
subject to any determination in such proceedings, be restored to their
former positions and rights hereunder with respect to the Mortgaged
Property, and all rights, remedies and powers of the Owner Trustee, the
Loan Trustee or Lessee shall continue as if no such proceedings had been
instituted.

          SECTION 4.08. Waiver of Past Defaults. Upon written instruction
from a Majority in Interest of Note Holders, the Loan Trustee shall waive
any past Default hereunder and its consequences and upon any such waiver
such Default shall cease to exist and any Event of Default arising
therefrom shall be deemed to have been cured for every purpose of this
Trust Indenture, but no such waiver shall extend to any subsequent or other
Default or impair any right consequent thereon; provided, that in the
absence of written instructions from all the Note Holders, the Loan Trustee
shall not waive any Default (i) in the payment of the Original Amount,
Make-Whole Amount, if any, and interest and other amounts due under any
Equipment Note then outstanding, or (ii) in respect of a covenant or
provision hereof which, under Article IX hereof, cannot be modified or
amended without the consent of each Note Holder.

          SECTION 4.09. Appointment of Receiver. The Loan Trustee shall, as
a matter of right, be entitled to the appointment of a receiver (who may be
the Loan Trustee or any successor or nominee thereof) for all or any part
of the Mortgaged Property, whether such receivership be incidental to a
proposed sale of the Mortgaged Property or the taking of possession thereof
or otherwise, and the Owner Trustee hereby consents to the appointment of
such a receiver and will not oppose any such appointment. Any receiver
appointed for all or any part of the Mortgaged Property shall be entitled
to exercise all the rights and powers of the Loan Trustee with respect to
the Mortgaged Property.

          SECTION 4.10. Loan Trustee Authorized to Execute Bills of Sale,
Etc. The Owner Trustee irrevocably appoints the Loan Trustee the true and
lawful attorney-in-fact of the Owner Trustee which appointment is coupled
with an interest in its name and stead and on its behalf, for the purpose
of effectuating any sale, assignment, transfer or delivery for the
enforcement of the Lien of this Trust Indenture, whether pursuant to
foreclosure or power of sale, assignments and other instruments as may be
necessary or appropriate, with full power of substitution, the Owner
Trustee hereby ratifying and confirming all that such attorney or any
substitute shall do by virtue hereof in accordance with applicable law.
Nevertheless, if so requested by the Loan Trustee or any purchaser, the
Owner Trustee shall ratify and confirm any such sale, assignment, transfer
or delivery, by executing and delivering to the Loan Trustee or

<PAGE>

                                                                         23

such purchaser all bills of sale, assignments, releases and other proper
instruments to effect such ratification and confirmation as may be
designated in any such request.

          SECTION 4.11. Rights of Note Holders to Receive Payment.
Notwithstanding any other provision of this Trust Indenture, the right of
any Note Holder to receive payment of principal of, and premium, if any,
and interest on an Equipment Note on or after the respective due dates
expressed in such Equipment Note, or to bring suit for the enforcement of
any such payment on or after such respective dates in accordance with the
terms hereof, shall not be impaired or affected without the consent of such
Note Holder.

                                 ARTICLE V

                         DUTIES OF THE LOAN TRUSTEE

          SECTION 5.01. Notice of Event of Default. If the Loan Trustee
shall have Actual Knowledge of an Event of Default or of a Default arising
from a failure to pay Rent, the Loan Trustee shall give prompt written
notice thereof to the Owner Trustee, the Owner Participant, Lessee, and
each Note Holder. Subject to the terms of Sections 4.03, 4.04, 4.08, 5.02
and 5.03 hereof, the Loan Trustee shall take such action, or refrain from
taking such action, with respect to such Event of Default or Default
(including with respect to the exercise of any rights or remedies
hereunder) as the Loan Trustee shall be instructed in writing by a Majority
in Interest of Note Holders. Subject to the provisions of Section 5.03, if
the Loan Trustee shall not have received instructions as above provided
within 20 days after mailing notice of such Event of Default to the Note
Holders, the Loan Trustee may, subject to instructions thereafter received
pursuant to the preceding provisions of this Section 5.01, take such
action, or refrain from taking such action, but shall be under no duty to
take or refrain from taking any action, with respect to such Event of
Default or Default as it shall determine advisable in the best interests of
the Note Holders. If the Loan Trustee shall at any time declare the Lease
to be in default pursuant to Section 14 thereof or shall elect to foreclose
or otherwise enforce this Trust Indenture, the Loan Trustee shall forthwith
notify the Owner Participant, the Note Holders, the Owner Trustee and
Lessee. For all purposes of this Trust Indenture, in the absence of Actual
Knowledge on the part of the Loan Trustee, the Owner Trustee or the Owner
Participant, the Loan Trustee, the Owner Trustee or the Owner Participant,
as the case may be, shall not be deemed to have knowledge of a Default or
an Event of Default (except, in the case of the Loan Trustee, the failure
of Lessee to pay any installment of Basic Rent within one Business Day
after the same shall become due, if any portion of such installment was
then required to be paid to the Loan Trustee, which failure shall
constitute knowledge of a Default) unless notified in writing by Lessee,
the Owner Trustee, the Owner Participant or one or more Note Holders.

          SECTION 5.02. Action upon Instructions; Certain Rights and
Limitations.

          (a) Subject to the terms of Sections 2.15, 4.03, 4.04(a), 4.08,
5.01 and 5.03 hereof, upon the written instructions at any time and from
time to time of a Majority in Interest of Note Holders, the Loan Trustee
shall, subject to the terms of this Section 5.02, take such of the
following actions as may be specified in such instructions: (i) give such
notice or direction or exercise such right, remedy or power hereunder as
shall be specified in such instructions; (ii) give such notice or direction
or exercise such right, remedy or power under the Lease, the Participation
Agreement, the Purchase Agreement, the Purchase Agreement Assignment, or
any other part of the Collateral as shall be specified in such
instructions; and (iii) approve as satisfactory to the Loan Trustee all
matters required by the terms of the Lease to be satisfactory to the Owner
Trustee, it being understood that without the written instructions of a
Majority in

<PAGE>

                                                                         24

Interest of Note Holders, the Loan Trustee shall not approve any such
matter as satisfactory to the Loan Trustee; provided, that anything
contained in this Trust Indenture, the Lease or the other Operative
Agreements to the contrary notwithstanding, but subject to the next
paragraph hereof:

          (1) the Owner Trustee or the Owner Participant may, without the
consent of the Loan Trustee, demand, collect, sue for or otherwise obtain
all amounts included in Excluded Payments from Lessee or the Guarantor,
exercise any election or option or make any decision or determination or to
give or receive any notice, consent, waiver or approval in respect of any
Excluded Payment and seek legal or equitable remedies to require Lessee or
the Guarantor to maintain the insurance coverage referred to in Section 11
of the Lease; provided, that the rights referred to in this clause (1)
shall not be deemed to include the exercise of any remedies provided for in
Section 15 of the Lease other than the right to proceed by appropriate
court action, either at law or in equity, to enforce payment by Lessee or
the Guarantor of such amounts included in Excluded Payments or performance
by Lessee or the Guarantor of such insurance covenant, or to recover
damages for the breach thereof or for specific performance of any covenant
of Lessee or the Guarantor;

          (2) unless an Event of Default and an Mortgage Event shall have
occurred and be continuing and except as provided in clause (4) below, the
Loan Trustee shall not, without the consent of the Owner Trustee, which
consent shall not be withheld or delayed if no right or interest of the
Owner Trustee or the Owner Participant shall be diminished or impaired
thereby, (i) enter into, execute or deliver amendments or modifications in
respect of any of the provisions of the Lease[, any assigned Permitted
Sublease or any Permitted Sublease assignment], or enter into, execute or
deliver waivers or consents in respect of any of the provisions of the
Lease, or (ii) approve any accountants, engineers, appraisers or counsel as
satisfactory to render services for or issue opinions to the Owner Trustee
pursuant to the Operative Agreements; provided that, whether or not an
Event of Default shall have occurred and be continuing, no amendment,
modification, waiver or consent in respect of the Lease shall affect the
amount or timing of, or the right to enforce payment of, any Excluded
Payment;

          (3) whether or not a Default or Event of Default under the Trust
Indenture has occurred and is continuing, the Owner Trustee and the Owner
Participant shall have the right, in addition to that of the Loan Trustee,
(i) to receive from Lessee all notices, certificates, reports, filings,
opinions of counsel and other documents and all information which any
thereof is permitted or required to give or furnish to the Owner Trustee or
Lessor pursuant to any Operative Agreement (including pursuant to Section
9.3 of the Participation Agreement), (ii) to exercise inspection rights
pursuant to Section 12 of the Lease, (iii) to retain all rights with
respect to insurance maintained for its own account which Section 11.2(b)
of the Lease specifically confers on Lessor or the Owner Participant, (iv)
to exercise, to the extent necessary to enable it to exercise its rights
under Section 4.03 hereof, the rights of Lessor under Section 15.3 of the
Lease and (v) to give notices of default under Section 15 of the Lease;

          (4) whether or not a Default or Event of Default under the Trust
Indenture has occurred and is continuing, the Owner Trustee shall have the
right to the exclusion of the Loan Trustee to adjust Rent and Stipulated
Loss Values as provided in Section 3.2.1 of the Lease and to select counsel
with respect to any opinion relating to tax matters to be delivered solely
to the Owner Participant;

          (5) whether or not a Default or an Event of Default under the
Trust Indenture has occurred and is continuing, the Owner Trustee may,
without the consent of the Loan Trustee,

<PAGE>

                                                                         25

solicit and make bids with respect to the Aircraft under Section 9 of the
Lease in respect of a termination of the Lease by Lessee pursuant to
Section 9 thereof; and

          (6) so long as no Event of Default shall have occurred and be
continuing, except as provided in clauses (2) and (3) above, all rights of
the "Lessor" under the Lease shall be exercised by the Owner Trustee to the
exclusion of the Loan Trustee including, without limitation, the right to
(i) exercise all rights with respect to Lessee's use and operation,
modification or maintenance of the Aircraft and any Engine which the Lease
specifically confers on Lessor (including, without limitation, the right to
seek legal or equitable remedies to require Lessee or the Guarantor to
perform the covenants and agreements contained in Sections 6, 7, 8, 10 and
12 of the Lease), and (ii) consent to and approve any assignment pursuant
to Section 13 of the Lease; provided that the foregoing shall not (x) limit
(A) any rights separately granted to the Loan Trustee under the Operative
Agreements or (B) the right of the Loan Trustee to receive any funds to be
delivered to the "Lessor" under the Lease (except with respect to Excluded
Payments) and under the Purchase Agreement or (y) confer upon the Owner
Trustee the right to adversely affect the validity or enforceability of the
Lien of this Indenture.

          Notwithstanding anything to the contrary contained herein, the
Loan Trustee shall have the right, to the exclusion of the Owner Trustee
and the Owner Participant, to (A) declare the Lease to be in default under
Section 15 thereof and (B) subject only to the provisions of Sections 4.03,
4.04(a) and 2.15 hereof, exercise the remedies set forth in such Section 15
(other than in connection with Excluded Payments) at any time that a Lease
Event of Default shall have occurred and be continuing.

          The Loan Trustee will execute and the Owner Trustee will file or
cause to be filed such continuation statements with respect to financing
statements relating to the security interest created hereunder in the
Collateral as specified by Lessee pursuant to Section 7.1.3 of the
Participation Agreement or as may be specified from time to time in written
instructions of a Majority in Interest of Note Holders (which instructions
may, by their terms, be operative only at a future date and which shall be
accompanied by the form of such continuation statement so to be filed). The
Loan Trustee will furnish to each Note Holder (and, during the continuation
of a Mortgagee Event, to the Owner Trustee and Owner Participant), promptly
upon receipt thereof, duplicates or copies of all reports, notices,
requests, demands, certificates and other instruments furnished to the Loan
Trustee under the Lease or hereunder, including, without limitation, a copy
of any Termination Notice (as defined in the Lease) and a copy of each
report or notice received pursuant to Section 9.1 and Section E of Annex D
of the Lease, respectively, to the extent that the same shall not have been
furnished to such Note Holder pursuant hereto or to the Lease.

          (b) If any Lease Event of Default shall have occurred and be
continuing and the Owner Trustee shall not have cured fully such Lease
Event of Default under and in accordance with Section 4.03 hereof, on
request of a Majority in Interest of Note Holders, the Loan Trustee shall
declare the Lease to be in default pursuant to Section 15 thereof and
exercise those remedies specified by such Note Holders. The Loan Trustee
agrees to provide to the Note Holders, the Owner Trustee, the Owner
Participant and Lessee concurrently with such declaration by the Loan
Trustee, notice of such declaration by the Loan Trustee.

          SECTION 5.03. Indemnification. The Loan Trustee shall not be
under any obligation to take any action under this Trust Indenture and
nothing herein or therein shall require the Loan Trustee to expend or risk
its own funds or otherwise incur the risk of any financial liability in the
performance of any of its rights or powers if it shall have reasonable
grounds for believing that repayment of such funds or adequate indemnity
against such risk or liability is not reasonably assured to it (the written
indemnity of any Note Holder who is a QIB,

<PAGE>

                                                                         26

signed by an authorized officer thereof, in favor of, delivered to and in
form reasonably satisfactory to Loan Trustee shall be accepted as
reasonable assurance of adequate indemnity). The Loan Trustee shall not be
required to take any action under Section 5.01 (other than the first
sentence thereof) or 5.02 or Article IV hereof, nor shall any other
provision of this Trust Indenture or any other Operative Agreement be
deemed to impose a duty on the Loan Trustee to take any action, if the Loan
Trustee shall have been advised by counsel that such action is contrary to
the terms hereof or of the Lease or is otherwise contrary to Law.

          SECTION 5.04. No Duties Except as Specified in Trust Indenture or
Instructions. The Loan Trustee shall not have any duty or obligation to
use, operate, store, lease, control, manage, sell, dispose of or otherwise
deal with the Aircraft or any other part of the Collateral, or to otherwise
take or refrain from taking any action under, or in connection with, this
Trust Indenture or any part of the Collateral, except as expressly provided
by the terms of this Trust Indenture or as expressly provided, in written
instructions from Note Holders as provided in this Trust Indenture; and no
implied duties or obligations shall be read into this Trust Indenture
against the Loan Trustee. The Loan Trustee agrees that it will in its
individual capacity and at its own cost and expense (but without any right
of indemnity in respect of any such cost or expense under Section 7.01
hereof), promptly take such action as may be necessary duly to discharge
all liens and encumbrances on any part of the Collateral which result from
claims against it in its individual capacity not related to the ownership
of the Aircraft or the administration of the Collateral or any other
transaction pursuant to this Trust Indenture or any document included in
the Collateral.

          SECTION 5.05. No Action Except Under Lease, Trust Indenture or
Instructions. The Owner Trustee and the Loan Trustee agree that they will
not use, operate, store, lease, control, manage, sell, dispose of or
otherwise deal with the Aircraft or any other part of the Collateral except
(i) as required or permitted by the terms of the Lease or the Participation
Agreement or (ii) in accordance with the powers granted to, or the
authority conferred upon, the Owner Trustee and the Loan Trustee pursuant
to this Trust Indenture and in accordance with the express terms hereof.

          SECTION 5.06. Replacement Airframes and Replacement Engines. At
any time an Airframe or Engine is to be replaced under or pursuant to
Section 10 of the Lease by a Replacement Airframe or Replacement Engine, if
no Lease Event of Default is continuing, the Owner Trustee shall direct the
Loan Trustee to execute and deliver to the Owner Trustee an appropriate
instrument releasing such Airframe and/or Engine as appropriate from the
Lien of this Trust Indenture and the Loan Trustee shall execute and deliver
such instrument as aforesaid, but only upon compliance by Lessee with the
applicable provisions of Section 10 of the Lease and upon receipt by or
deposit with the Loan Trustee of the following:

          (1) A written request from the Owner Trustee, requesting such
release specifically describing the Airframe and/or Engine(s) so to be
released.

          (2) A certificate signed by a duly authorized officer of Lessee
stating the following:

          A. With respect to the Replacement of any Airframe:

               (i) a description of the Airframe which shall be identified by
          manufacturer, model, FAA registration number (or other applicable
          registration information) and manufacturer's serial number;

<PAGE>

                                                                         27

                    (ii) a description of the Replacement Airframe to be
               received (including the manufacturer, model, FAA
               registration number (or other applicable registration
               information) and manufacturer's serial number) as
               consideration for the Airframe to be released;

                    (iii) that on the date of the Trust Agreement and
               Indenture Supplement relating to the Replacement Airframe
               the Owner Trustee will be the legal owner of such
               Replacement Airframe free and clear of all Liens except as
               are permitted by Section 6 of the Lease, that such
               Replacement Airframe will on such date be in good working
               order and condition, and that such Replacement Airframe has
               been or, substantially concurrently with such withdrawal,
               will be duly registered in the name of the Owner Trustee
               under the Federal Aviation Act or under the law then
               applicable to the registration of the Airframe and that an
               airworthiness certificate has been duly issued under the
               Federal Aviation Act (or such other applicable law) with
               respect to such Replacement Airframe, and that such
               registration and certificate is in full force and effect,
               and that Lessee will have the full right and authority to
               use such Replacement Airframe;

                    (iv) the existence of the insurance required by Section
               11 of the Lease with respect to such Replacement Airframe
               and the payment of all premiums then due thereon;

                    (v) that the Replacement Airframe is of the same or an
               improved model as the Airframe requested to be released from
               this Indenture and otherwise complies with the requirements
               of the Lease and all other Operative Agreements;

                    (vi) the fair market value and utility (without regard
               to hours and cycles until overhaul) of the Replacement
               Airframe as of the date of such certificate (which in the
               judgment of Lessee shall be not less than the then fair
               market value and utility (without regard to hours and cycles
               until overhaul) of the Airframe requested to be released
               (assuming such Airframe was in the condition and repair
               required to be maintained under the Lease));

                    (vii) the fair market value of the Airframe immediately
               prior to the date the Airframe suffered an Event of Loss
               (assuming such Airframe was in the condition and repair
               required to be maintained under the Lease),

                    (viii) that no Lease Event of Default and no event
               which, with lapse of time or notice, or both, would become a
               Lease Event of Default, has occurred which has not been
               remedied or waived, that each of the conditions specified in
               Section 10.3.1 of the Lease with respect to the Replacement
               Airframe shall have been satisfied and that Lessee will not
               be in default, by the making and granting of the request for
               release and the addition of a Replacement Airframe, in the
               performance of any of the terms and covenants of the Lease;
               and

                    (ix) that the release of the Airframe so to be released
               will not be in contravention of any of the provisions of
               this Indenture; or

                    B. with respect to the replacement of any Engine:

                    (i) a description of the Engine which shall be
               identified by manufacturer's serial number;

<PAGE>

                                                                         28

                    (ii) a description of the Replacement Engine (including
               the manufacturer's name and serial number) as consideration
               for the Engine to be released;

                    (iii) that on the date of the Trust Agreement and
               Indenture Supplement relating to the Replacement Engine the
               Owner Trustee will be the legal owner of such Replacement
               Engine free and clear of all Liens except as are permitted
               by Section 6 of the Lease, that such Replacement Engine will
               on such date be in good working order and condition and that
               such Replacement Engine is substantially the same as the
               Engine to be released (or an improved model),

                    (iv) the fair market value, utility (without regard to
               hours and cycles until overhaul) and modification and
               remaining manufacturers warranty status of the Replacement
               Engine as of the date of such certificate (which value shall
               not be less than the then fair market value of the Engine to
               be released (assuming such Engine was in the condition and
               repair required to be maintained under the Lease));

                    (v) the fair market value of the Engine to be released
               (immediately prior to any Event of Loss suffered by such
               Engine and assuming that such Engine was in the condition
               and repair required to be maintained under the Lease);

                    (vi) that each of the conditions specified in Section
               10.3.1 of the Lease with respect to such Replacement Engine
               have been satisfied and that Lessee will not be in default,
               by the making and granting of the request for release and
               the addition of the Replacement Engine, in the performance
               of any of the terms and covenants of the Lease; and

                    (vii) that the release of the Engine so to be released
               will not be in contravention of any of the provisions of
               this Indenture.

          (3) (a) The appropriate instruments (i) transferring to the Owner
Trustee title to the Replacement Airframe or Replacement Engine to be
received as consideration for the Airframe or Engine to be released and
(ii) assigning to the Owner Trustee the benefit of all manufacturer's and
vendor's warranties generally available with respect to such Replacement
Airframe or Replacement Engine, and a Trust Agreement and Indenture
Supplement subjecting such Replacement Airframe or Replacement Engine and
any related warranty rights to the lien of this Indenture.

          (b) With respect to the replacement of any Engine, such Uniform
Commercial Code financing statements covering the lien created by this
Indenture as deemed necessary or desirable by counsel for the Loan Trustee
to protect the lien under the Indenture in the Replacement Engine.

          (4) A certificate from either an aircraft engineer (who may be an
employee of Lessee) or a firm of independent aircraft appraisers selected
by Lessee confining the accuracy of the information set forth in clause
(2)A(vi) of this Section 5.06.

          (5) The opinion of counsel satisfactory to the Loan Trustee,
stating that:

          (i) the certificates, opinions and other instruments and/or property
     which have been or are therewith delivered to and deposited with the Loan
     Trustee conform to the requirements of this Trust Indenture and the Lease
     and, upon the basis of such application, the property so sold or disposed
     of may be lawfully released from the

<PAGE>

                                                                         29

               lien of this Trust Indenture and all conditions precedent
               herein provided for relating to such release have been
               complied with; and

                    (ii) the Replacement Airframe or Replacement Engine has
               been validly subjected to the lien of this Indenture and
               covered by the Lease, the instruments subjecting such
               Replacement Airframe or Replacement Engine to the Lease and
               to the Lien of this Trust Indenture, as the case may be,
               have been duly filed for recordation pursuant to the Federal
               Aviation Act or any other law then applicable to the
               registration of the Aircraft, and no further action, filing
               or recording of any document is necessary or advisable in
               order to establish and perfect the right, title, estate and
               interest of the Owner Trustee to and the lien of this Trust
               Indenture on such Replacement Aircraft or Replacement
               Engine.

          SECTION 5.07. Indenture Supplements for Replacements. If a
Replacement Airframe or Replacement Engine is being substituted as
contemplated by Section 10 of the Lease, the Owner Trustee and the Loan
Trustee agree for the benefit of the Note Holders and Lessee, subject to
fulfillment of the conditions precedent and compliance by Lessee with its
obligations set forth in Section 10 of the Lease and the requirements of
Section 5.06 hereof with respect to such Replacement Airframe or
Replacement Engine, to execute and deliver a Lease supplement and a Trust
Agreement and Indenture Supplement, as applicable, as contemplated by
Section 10 of the Lease.

          SECTION 5.08. Effect of Replacement. In the event of the
substitution of an Airframe or of a Replacement Engine pursuant to Section
10 of the Lease, (a) all provisions of this Trust Indenture relating to the
Airframe or Engine or Engines being replaced shall be applicable to such
Replacement Airframe or Replacement Engine or Engines with the same force
and effect as if such Replacement Airframe or Replacement Engine or Engines
were the same airframe or engine or engines, as the case may be, as the
Airframe or Engine or Engines being replaced but for the Event of Loss with
respect to the Airframe or Engine or Engines being replaced, and (b) the
provisions of this Trust Indenture shall no longer be applicable to the
Airframe or Engine or Engines being replaced, which shall be released from
the Lien of this Indenture.

          SECTION 5.09. Investment of Amounts Held by Loan Trustee. Any
amounts held by the Loan Trustee as assignee of the Owner Trustee's rights
to hold monies for security pursuant to Section 4.4.1 of the Lease shall be
held in accordance with the terms of such Section and the Loan Trustee
agrees, for the benefit of Lessee, to perform the duties of the Owner
Trustee under such Section. Any amounts held by the Loan Trustee pursuant
to the proviso to the first sentence of Section 3.01, pursuant to Section
3.02, or pursuant to any provision of any other Operative Agreement
providing for amounts to be held by the Loan Trustee which are not
distributed pursuant to the other provisions of Article III hereof shall be
invested by the Loan Trustee from time to time in Cash Equivalents as
directed by the Lessee (or, if a Lease Event of Default shall be
continuing, by the Owner Trustee) so long as the Loan Trustee may acquire
the same using its best efforts. All Cash Equivalents shall either be (a)
registered in the name of, payable to the order of, or specially endorsed
to, the Loan Trustee or (b) credited to an Eligible Account. Unless
otherwise expressly provided in this Trust Indenture, any income realized
as a result of any such investment, net of the Loan Trustee's reasonable
fees and expenses in making such investment, shall be held and applied by
the Loan Trustee in the same manner as the principal amount of such
investment is to be applied and any losses, net of earnings and such
reasonable fees and expenses, shall be charged against the principal amount
invested. The Loan Trustee shall not be liable for any loss resulting from
any investment required to be made by it under this Trust Indenture other
than by reason of its willful misconduct or gross negligence or

<PAGE>

                                                                         30

negligence in the handling of funds, and any such investment may be sold
(without regard to its maturity) by the Loan Trustee without instructions
whenever such sale is necessary to make a distribution required by this
Trust Indenture.

                                 ARTICLE VI

                   THE OWNER TRUSTEE AND THE LOAN TRUSTEE

          SECTION 6.01. Acceptance of Trusts and Duties. The Loan Trustee
accepts the duties hereby created and applicable to it and agrees to
perform the same but only upon the terms of this Trust Indenture and agrees
to receive and disburse all monies constituting part of the Collateral in
accordance with the terms hereof. The Owner Trustee, in its individual
capacity, and the Loan Trustee, in its individual capacity, shall not be
answerable or accountable under any circumstances, except (i) for their own
willful misconduct or gross negligence (other than for the handling of
funds, for which the standard of accountability shall be willful misconduct
or negligence), (ii) in the case of the Loan Trustee, as provided in the
fourth sentence of Section 2.04(a) hereof and the last sentence of Section
5.04 hereof, and (iii) for liabilities that may result, in the case of the
Owner Trustee, from the inaccuracy of any representation or warranty of the
Owner Trustee expressly made in its individual capacity in the
Participation Agreement or in Section 4.01(b) or 6.03 hereof (or in any
certificate furnished to the Loan Trustee or any Note Holder in connection
with the transactions contemplated by the Operative Agreements) or, in the
case of the Loan Trustee (in its individual capacity), from the inaccuracy
of any representation or warranty of the Loan Trustee (in its individual
capacity) in the Participation Agreement or expressly made hereunder.
Neither the Owner Trustee nor the Loan Trustee shall be liable for any
action or inaction of the other or of the Owner Participant.

          SECTION 6.02. Absence of Duties. In the case of the Loan Trustee,
except in accordance with written instructions furnished pursuant to
Section 5.01 or 5.02 hereof, and except as provided in, and without
limiting the generality of, Sections 5.03 and 5.04 hereof and, in the case
of the Owner Trustee, except as provided in Section 4.01(b) hereof or
Section 13 of the Participation Agreement, the Owner Trustee and the Loan
Trustee shall have no duty (i) to see to any registration of the Aircraft
or any recording or filing of the Lease or of this Trust Indenture or any
other document, or to see to the maintenance of any such registration,
recording or filing, (ii) to see to any insurance on the Aircraft or to
effect or maintain any such insurance, whether or not Lessee shall be in
default with respect thereto, (iii) to see to the payment or discharge of
any lien or encumbrance of any kind against any part of the Trust Estate or
the Collateral, (iv) to confirm, verify or inquire into the failure to
receive any financial statements from Lessee, or (v) to inspect the
Aircraft at any time or ascertain or inquire as to the performance or
observance of any of Lessee's covenants under the Lease [or any of the
Permitted Sublessee's covenants under any assigned Permitted Sublease] with
respect to the Aircraft. The Owner Participant shall not have any duty or
responsibility hereunder, including, without limitation, any of the duties
mentioned in clauses (i) through (v) above; provided, that nothing
contained in this sentence shall limit any obligations of the Owner
Participant under the Participation Agreement or relieve the Owner
Participant from any restriction under Section 4.03 hereof.

<PAGE>

                                                                         31

          SECTION 6.03. No Representations or Warranties as to Aircraft or
Documents. NEITHER THE LOAN TRUSTEE IN ITS INDIVIDUAL OR TRUST CAPACITY NOR
THE OWNER TRUSTEE IN ITS INDIVIDUAL CAPACITY OR AS OWNER TRUSTEE UNDER THE
TRUST AGREEMENT, NOR THE OWNER PARTICIPANT MAKES OR SHALL BE DEEMED TO HAVE
MADE AND EACH HEREBY EXPRESSLY DISCLAIMS ANY REPRESENTATION OR WARRANTY,
EXPRESS OR IMPLIED, AS TO THE TITLE, AIRWORTHINESS, VALUE, COMPLIANCE WITH
SPECIFICATIONS, CONDITION, DESIGN, QUALITY, DURABILITY, OPERATION,
MERCHANTABILITY OR FITNESS FOR USE FOR A PARTICULAR PURPOSE OF THE AIRCRAFT
OR ANY ENGINE, AS TO THE ABSENCE OF LATENT OR OTHER DEFECTS, WHETHER OR NOT
DISCOVERABLE, AS TO THE ABSENCE OF ANY INFRINGEMENT OF ANY PATENT,
TRADEMARK OR COPYRIGHT, AS TO THE ABSENCE OF OBLIGATIONS BASED ON STRICT
LIABILITY IN TORT OR ANY OTHER REPRESENTATION OR WARRANTY WHATSOEVER,
except the Owner Trustee in its individual capacity warrants that on the
Delivery Date (i) the Owner Trustee shall have received whatever interest
was conveyed to it by Lessee, and (ii) the Aircraft shall be free and clear
of Lessor Liens (including for this purpose Liens that would be Lessor
Liens but for the proviso in the definition of Lessor Liens) attributable
to the Owner Trustee in its individual capacity. Neither the Owner Trustee,
in its individual capacity or as Owner Trustee under the Trust Agreement,
nor the Loan Trustee, in its individual or trust capacities, makes or shall
be deemed to have made any representation or warranty as to the validity,
legality or enforceability of this Trust Indenture, the Trust Agreement,
the Participation Agreement, the Equipment Notes, the Lease, the Purchase
Agreement, the Purchase Agreement Assignment, the Consent and Agreement or
the Guarantee, or as to the correctness of any statement contained in any
thereof, except for the representations and warranties of the Owner Trustee
made in its individual capacity and the representations and warranties of
the Loan Trustee, in each case expressly made in this Trust Indenture or in
the Participation Agreement. The Note Holders and the Owner Participant
make no representation or warranty hereunder whatsoever.

          SECTION 6.04. No Segregation of Monies; No Interest. Any monies
paid to or retained by the Loan Trustee pursuant to any provision hereof
and not then required to be distributed to the Note Holders, Lessee or the
Owner Trustee as provided in Article III hereof need not be segregated in
any manner except to the extent required by law or Sections 10.9 and 11.5
of the Lease and Section 5.09 hereof, and may be deposited under such
general conditions as may be prescribed by law, and the Loan Trustee shall
not be liable for any interest thereon (except that the Loan Trustee shall
invest all monies held as directed by Lessee so long as no Lease Event of
Default or Lease Default has occurred and is continuing (or in the absence
of such direction, by the Majority In Interest of Note Holders) in Cash
Equivalents either registered in the name of the Loan Trustee or credited
to an Eligible Account of the type described in clause (1) of the
definition thereof; provided, however, that any payments received, or
applied hereunder, by the Loan Trustee shall be accounted for by the Loan
Trustee so that any portion thereof paid or applied pursuant hereto shall
be identifiable as to the source thereof.

          SECTION 6.05. Reliance; Agreements; Advice of Counsel. Neither
the Owner Trustee nor the Loan Trustee shall incur any liability to anyone
in acting upon any signature, instrument, notice, resolution, request,
consent, order, certificate, report, opinion, bond or other document or
paper believed by it to be genuine and believed by it to be signed by the
proper party or parties. The Owner Trustee and the Loan Trustee may accept
a copy of a resolution of the Board of Directors of any party to the
Participation Agreement, certified by the Secretary or an Assistant
Secretary thereof as duly adopted and in full force and effect, as
conclusive evidence that such resolution has been duly adopted and that the
same is in full force and effect. As to the aggregate unpaid Original
Amount of Equipment Notes outstanding as of

<PAGE>

                                                                         32

any date, the Owner Trustee may for all purposes hereof rely on a
certificate signed by any Vice President or other authorized corporate
trust officer of the Loan Trustee. As to any fact or matter relating to
Lessee the manner of ascertainment of which is not specifically described
herein, the Owner Trustee and the Loan Trustee may for all purposes hereof
rely on a certificate, signed by a duly authorized officer of Lessee, as to
such fact or matter, and such certificate shall constitute full protection
to the Owner Trustee and the Loan Trustee for any action taken or omitted
to be taken by them in good faith in reliance thereon. The Loan Trustee
shall assume, and shall be fully protected in assuming. that the Owner
Trustee is authorized by the Trust Agreement to enter into this Trust
Indenture and to take all action to be taken by it pursuant to the
provisions hereof, and shall not inquire into the authorization of the
Owner Trustee with respect thereto. In the administration of the trusts
hereunder, the Owner Trustee and the Loan Trustee each may execute any of
the trusts or powers hereof and perform its powers and duties hereunder
directly or through agents or attorneys and may at the expense of the
Collateral, consult with counsel, accountants and their skilled persons to
be selected and retained by it, and the Owner Trustee and the Loan Trustee
shall not be liable for anything done, suffered or omitted in good faith by
them in accordance with the written advice or written opinion of any such
counsel, accountants or other skilled persons.

          SECTION 6.06. Capacity in Which Acting. The Owner Trustee acts
hereunder solely as trustee as herein and in the Trust Agreement provided,
and not in its individual capacity, except as otherwise expressly provided
herein, in the Trust Agreement and in the Participation Agreement.

          SECTION 6.07. Compensation. The Loan Trustee shall be entitled to
certain indemnities and compensation, including expenses and disbursements
(including the reasonable fees and expenses of counsel), for all services
rendered hereunder (which indemnities and compensation shall be set forth
on a separate fee agreement between the Loan Trustee and the Lessee). The
Loan Trustee agrees that it shall have no right against the Note Holders,
the Owner Trustee or the Owner Participant for any fee as compensation for
its services as trustee under this Trust Indenture.

          SECTION 6.08. Instructions from Note Holders. In the
administration of the trusts created hereunder, the Loan Trustee shall have
the right to seek instructions from a Majority in Interest of Note Holders
should any provision of this Trust Indenture appear to conflict with any
other provision herein or should the Loan Trustee's duties or obligations
hereunder be unclear, and the Loan Trustee shall incur no liability in
refraining from acting until it receives such instructions. The Loan
Trustee shall be fully protected for acting in accordance with any
instructions received under this Section 6.08.

                                ARTICLE VII

              INDEMNIFICATION OF LOAN TRUSTEE BY OWNER TRUSTEE

          SECTION 7.01. Scope of Indemnification. The Owner Trustee, not in
its individual capacity, but solely as Owner Trustee, hereby agrees,
whether or not any of the transactions contemplated hereby shall be
consummated, except as otherwise provided in Section 2.03 or 2.04(b)
hereof, to assume liability for, and does hereby indemnify, protect, save
and keep harmless the Loan Trustee (in its individual and trust
capacities), and its successors, assigns, agents and servants, from and
against any and all liabilities, obligations, losses, damages, penalties,
taxes (excluding any taxes payable by the Loan Trustee (in its individual
capacity) on or measured by any compensation received by the Loan Trustee
(in its individual capacity) for its

<PAGE>

                                                                         33

services under this Trust Indenture), claims, actions, suits, costs,
expenses or disbursements (including reasonable legal fees and expenses) of
any kind and nature whatsoever, which may be imposed on, incurred by or
asserted against the Loan Trustee (in its individual or trust capacities)
(whether or not also indemnified against by any other Person under any
other document) in any way relating to or arising out of this Trust
Indenture or any other Operative Agreement to which it is a party or the
enforcement of any of the terms of any thereof, or in any way relating to
or arising out of the manufacture, purchase, acceptance, non-acceptance,
rejection, ownership, delivery, lease, possession, use, operation,
condition, sale, return or other disposition of the Aircraft or any Engine
(including, without limitation, latent or other defects, whether or not
discoverable, and any claim for patent, trademark or copyright
infringement), or in any way relating to or arising out of the
administration of the Collateral or the action or inaction of the Loan
Trustee (in its individual or trust capacities) hereunder, to the extent
not reimbursed by Lessee. Without limiting the foregoing, the Loan Trustee
(in its individual or trust capacities) agrees that, prior to seeking
indemnification from the Collateral, it will demand, and take such action
as it may in its discretion determine to be reasonable to pursue,
indemnification available to it under the Lease or the Participation
Agreement. Notwithstanding the foregoing, the Loan Trustee (in its
individual or trust capacities) shall not be entitled to any
indemnification for any Expenses to the extent relating to or arising from
its willful misconduct or gross negligence (or negligence in the case of
handling funds) in the performance of its duties hereunder or resulting
from the inaccuracy of any representation or warranty of the Loan Trustee
(in its individual capacity) referred to in Section 6.03 hereof, or as
provided in Section 6.01 hereof or in the last sentence of Section 5.04
hereof, or as otherwise excluded by the terms of Sections 9.1 and 9.3 of
the Participation Agreement from Lessee's indemnities under such Sections.
In addition, if necessary, the Loan Trustee (in its individual or trust
capacities) shall be entitled to indemnification from the Collateral for
any liability, obligation, loss, damage, penalty, claim, action, suit,
cost, expense or disbursement indemnified against pursuant to this Section
7.01 to the extent not reimbursed by Lessee or others, but without
releasing any of them from their respective agreements of reimbursement;
and to secure the same the Loan Trustee (in its individual or trust
capacities) shall have a prior Lien on the Collateral. Without limiting the
foregoing, the Loan Trustee agrees that, prior to seeking indemnification
from the Collateral, it will demand, and diligently pursue in good faith
(but with no duty to exhaust all legal remedies therefor), indemnification
available to the Loan Trustee from Lessee under the Lease or the
Participation Agreement.

                                ARTICLE VIII

                      SUCCESSOR AND SEPARATE TRUSTEES

          SECTION 8.01. Notice of Successor Owner Trustee. In the case of
any appointment of a successor to the Owner Trustee pursuant to the Trust
Agreement including upon any merger, conversion, consolidation or sale of
substantially all of the corporate trust business of the Owner Trustee
pursuant to the Trust Agreement, the successor Owner Trustee shall give
prompt written notice thereof to the Loan Trustee, Lessee and the Note
Holders.

          SECTION 8.02. Resignation of Loan Trustee; Appointment of
Successor.

          (a) The Loan Trustee or any successor thereto may resign at any
time without cause by giving at least 30 days' prior written notice to
Lessee, the Owner Trustee, the Owner Participant and each Note Holder, such
resignation to be effective upon the acceptance of the trusteeship by a
successor Loan Trustee. In addition, a Majority in Interest of Note Holders
may at any time (but only with the consent of Lessee, which consent shall
not be unreasonably

<PAGE>

                                                                         34

withheld, except that such consent shall not be necessary if a Lease Event
of Default is continuing) remove the Loan Trustee without cause by an
instrument in writing delivered to the Owner Trustee, Lessee, the Owner
Participant and the Loan Trustee, and the Loan Trustee shall promptly
notify each Note Holder thereof in writing, such removal to be effective
upon the acceptance of the trusteeship by a successor Loan Trustee. In the
case of the resignation or removal of the Loan Trustee, a Majority in
Interest of Note Holders may appoint a successor Loan Trustee by an
instrument signed by such holders, which successor, so long as no Lease
Event of Default shall have occurred and be continuing, shall be subject to
Lessee's reasonable approval. If a successor Loan Trustee shall not have
been appointed within 30 days after such notice of resignation or removal,
the Loan Trustee, the Owner Trustee, the Owner Participant or any Note
Holder may apply to any court of competent jurisdiction to appoint a
successor Loan Trustee to act until such time, if any, as a successor shall
have been appointed as above provided. The successor Loan Trustee so
appointed by such court shall immediately and without further act be
superseded by any successor Loan Trustee appointed as above provided.

          (b) Any successor Loan Trustee, however appointed, shall execute
and deliver to the Owner Trustee, the predecessor Loan Trustee and Lessee
an instrument accepting such appointment and assuming the obligations of
the Loan Trustee under the Participation Agreement arising from and after
the time of such appointment, and thereupon such successor Loan Trustee,
without further act, shall become vested with all the estates, properties,
rights, powers and duties of the predecessor Loan Trustee hereunder in the
trust hereunder applicable to it with like effect as if originally named
the Loan Trustee herein; but nevertheless upon the written request of such
successor Loan Trustee, such predecessor Loan Trustee shall execute and
deliver an instrument transferring to such successor Loan Trustee, upon the
trusts herein expressed applicable to it, all the estates, properties,
rights and powers of such predecessor Loan Trustee, and such predecessor
Loan Trustee shall duly assign, transfer, deliver and pay over to such
successor Loan Trustee all monies or other property then held by such
predecessor Loan Trustee hereunder.

          (c) Any successor Loan Trustee, however appointed, shall be a
bank or trust company having its principal place of business in the Borough
of Manhattan, City and State of New York; Wilmington, Delaware; Salt Lake
City, Utah; Chicago, Illinois or Hartford, Connecticut and having (or whose
obligations under the Operative Agreements are guaranteed by an affiliated
entity having) a combined capital and surplus of at least $100,000,000, if
there be such an institution willing, able and legally qualified to perform
the duties of the Loan Trustee hereunder upon reasonable or customary
terms.

          (d) Any corporation into which the Loan Trustee may be merged or
converted or with which it may be consolidated, or any corporation
resulting from any merger, conversion or consolidation to which the Loan
Trustee shall be a party, or any corporation to which substantially all the
corporate trust business of the Loan Trustee may be transferred, shall,
subject to the terms of paragraph (c) of this Section 8.02, be a successor
Loan Trustee and the Loan Trustee under this Trust Indenture without
further act.

<PAGE>

                                                                         35

          SECTION 8.03. Appointment of Additional and Separate Trustees.

          (a) Whenever (i) the Loan Trustee shall deem it necessary or
desirable in order to conform to any law of any jurisdiction in which all
or any part of the Collateral shall be situated or to make any claim or
bring any suit with respect to or in connection with the Collateral, this
Trust Indenture, any other Mortgage Agreement, the Equipment Notes or any
of the transactions contemplated by the Participation Agreement, (ii) the
Loan Trustee shall be advised by counsel satisfactory to it that it is so
necessary or prudent in the interests of the Note Holders (and the Loan
Trustee shall so advise the Owner Trustee and Lessee), or (iii) the Loan
Trustee shall have been requested to do so by a Majority in Interest of
Note Holders, then in any such case, the Loan Trustee and, upon the written
request of the Loan Trustee, the Owner Trustee, shall execute and deliver
an indenture supplemental hereto and such other instruments as may from
time to time be necessary or advisable either (1) to constitute one or more
bank or trust companies or one or more persons approved by the Loan
Trustee, either to act jointly with the Loan Trustee as additional trustee
or trustees of all or any part of the Collateral, or to act as separate
trustee or trustees of all or any part of the Collateral, in each case with
such rights, powers, duties and obligations consistent with this Trust
Indenture as may be provided in such supplemental indenture or other
instruments as the Loan Trustee or a Majority in Interest of Note Holders
may deem necessary or advisable, or (2) to clarify, add to or subtract from
the rights, powers, duties and obligations theretofore granted any such
additional and separate trustee, subject in each case to the remaining
provisions of this Section 8.03. If the Owner Trustee shall not have taken
any action requested of it under this Section 8.03(a) that is permitted or
required by its terms within 15 days after the receipt of a written request
from the Loan Trustee so to do, or if an Event of Default shall have
occurred and b continuing, the Loan Trustee may act under the foregoing
provisions of this Section 8.03(a) without the concurrence of the Owner
Trustee; and the Owner Trustee hereby irrevocably appoints (which
appointment is coupled with an interest) the Loan Trustee, its agent and
attorney-in-fact to act for it under the foregoing provisions of this
Section 8.03(a) in either of such contingencies. The Loan Trustee may, in
such capacity, execute, deliver and perform any such supplemental
indenture, or any such instrument, as may be required for the appointment
of any such additional or separate trustee or for the clarification of,
addition to or subtraction from the rights, powers, duties or obligations
theretofore granted to any such additional or separate trustee. In case any
additional or separate trustee appointed under this Section 8.03(a) shall
die, become incapable of acting, resign or be removed, all the assets,
property, rights, powers, trusts, duties and obligations of such additional
or separate trustee shall revert to the Loan Trustee until a successor
additional or separate trustee is appointed as provided in this Section
8.03(a).

          (b) No additional or separate trustee shall be entitled to
exercise any of the rights, powers, duties and obligations conferred upon
the Loan Trustee in respect of the custody, investment and payment of
monies and all monies received by any such additional or separate trustee
from or constituting part of the Collateral or otherwise payable under any
Operative Agreement to the Loan Trustee shall be promptly paid over by it
to the Loan Trustee. All other rights, powers, duties and obligations
conferred or imposed upon any additional or separate trustee shall be
exercised or performed by the Loan Trustee and such additional or separate
trustee jointly except to the extent that applicable Law of any
jurisdiction in which any particular act is to be performed renders the
Loan Trustee incompetent or unqualified to perform such act, in which event
such rights, powers, duties and obligations (including the holding of title
to all or part of the Collateral in any such jurisdiction) shall be
exercised and performed by such additional or separate trustee. No
additional or separate trustee shall take any discretionary action except
on the instructions of the Loan Trustee or a Majority in Interest of Note
Holders. No trustee hereunder shall be personally liable by reason of any
act or omission of any other trustee hereunder, except that the Loan
Trustee shall be liable for the consequences of its lack of

<PAGE>

                                                                         36

reasonable care in selecting, and Loan Trustee's own actions in acting
with, any additional or separate trustee. Each additional or separate
trustee appointed pursuant to this Section 8.03 shall be subject to, and
shall have the benefit of Articles IV through VIII and Article X hereof
insofar as they apply to the Loan Trustee. The powers of any additional or
separate trustee appointed pursuant to this Section 8.03 shall not in any
case exceed those of the Loan Trustee hereunder.

          (c) If at any time the Loan Trustee shall deem it no longer
necessary or desirable in order to conform to any such law or take any such
action or shall be advised by such counsel that it is no longer so
necessary or desirable in the interest of the Note Holders, or in the event
that the Loan Trustee shall have been requested to do so in writing by a
Majority in Interest of Note Holders, the Loan Trustee and, upon the
written request of the Loan Trustee, the Owner Trustee, shall execute and
deliver an indenture supplemental hereto and all other instruments and
agreements necessary or proper to remove any additional or separate
trustee. The Loan Trustee may act on behalf of the Owner Trustee under this
Section 8.03(c) when and to the extent it could so act under Section
8.03(a) hereof.

                                 ARTICLE IX

             SUPPLEMENT AND AMENDMENTS TO THIS TRUST INDENTURE
                            AND OTHER DOCUMENTS

          SECTION 9.01. Instructions of Majority; Limitations.

          (a) Except as provided in Section 5.02 hereof, and except with
respect to Excluded Payments, the Owner Trustee agrees it shall not enter
into any amendment of or supplement to the Lease, the Purchase Agreement,
the Purchase Agreement Assignment, the Consent and Agreement, the Engine
Manufacturer Warranty Agreement, or the Guarantee, or execute and deliver
any written waiver or modification of, or consent under, the terms of the
Lease, the Purchase Agreement, the Purchase Agreement Assignment, the
Consent and Agreement, the Guarantee Agreement, unless such supplement,
amendment, waiver, modification or consent is consented to in writing by
the Loan Trustee and a Majority in Interest of Note Holders. Anything to
the contrary contained herein notwithstanding, without the necessity of the
consent of any of the Note Holders or the Loan Trustee, (i) any Excluded
Payments payable to the Owner Participant may be modified, amended, changed
or waived in such manner as shall be agreed to by the Owner Participant and
Lessee and (ii) the Owner Trustee and Lessee may enter into amendments of
or additions to the Lease to modify Section 5 (except to the extent that
such amendment would affect the rights or exercise of remedies under
Section 15 of the Lease), Section 9 or Section 17 of the Lease so long as
such amendments, modifications and changes do not and would not affect the
time of, or reduce the amount of, Rent payments until after the payment in
full of all Secured Obligations or otherwise adversely affect the Note
Holders.

          (b) Without limiting the provisions of Section 9.01(a) hereof and
subject to Section 5.02(a)(2)(i) hereof, the Loan Trustee agrees with the
Note Holders that it shall not enter into any amendment, waiver or
modification of, supplement or consent to this Trust Indenture, the Lease,
the Purchase Agreement, the Purchase Agreement Assignment, the Consent and
Agreement, the Engine Manufacturer Warranty Agreement, the Guarantee or the
Participation Agreement, or any other agreement included in the Collateral,
unless such supplement, amendment, waiver, modification or consent is
consented to in writing by a Majority in Interest of Note Holders, but upon
the written request of a Majority in Interest of Note Holders, the Loan
Trustee shall from time to time enter into any such supplement or
amendment, or execute and

<PAGE>

                                                                         37

deliver any such waiver, modification or consent, as may be specified in
such request and as may be (in the case of any such amendment, supplement
or modification), to the extent such agreement is required, agreed to by
the Owner Trustee and Lessee or, as may be appropriate, the Airframe
Manufacturer or the Engine Manufacturer; provided, however, that, without
the consent of each holder of an affected Equipment Note then outstanding
and of each Liquidity Provider and the Policy Provider, no such amendment
of or supplement to this Trust Indenture, the Lease, the Purchase
Agreement, the Purchase Agreement Assignment, the Consent and Agreement,
the Engine Manufacturer Warranty Agreement, the Guarantee or the
Participation Agreement or waiver or modification of the terms of, or
consent under, any thereof, shall (i) modify any of the provisions of this
Section 9.01, of Article II or III of Section 4.02, 4.03, 4.04, 5.02 or
5.06 hereof, Section 13.3, 14 (except to add an Event of Default) or 16 of
the Lease, Section 15.1 of the Participation Agreement, the definitions of
"Event of Default", "Default", "Lease Event of Default", "Lease Default",
"Majority in Interest of Note Holders", "Make-Whole Amount" or "Note
Holder", or the percentage of Note Holders required to take or approve any
action hereunder, (ii) reduce the amount, or change the time of payment or
method of calculation of any amount, of Original Amount, Make-Whole Amount,
if any, or interest with respect to any Equipment Note, or alter or modify
the provisions of Article III hereof with respect to the order of
priorities in which distribution thereunder shall be made as among the Note
Holders, the Owner Trustee and Lessee, (iii) reduce, modify or amend any
indemnities in favor of the Loan Trustee, the Mortgage Indemnitees or the
Note Holders, (iv) consent to any change in the Trust Indenture or the
Lease which would permit redemption of Equipment Notes earlier than
permitted under Section 2.10 or 2.12 hereof or the purchase of the
Equipment Notes other than as permitted by Section 2.14 hereof, (v) modify
any of the provisions of Section 3.2.1(e) of the Lease, or modify, amend or
supplement the Lease or consent to any assignment of the Lease, in either
case releasing Lessee from its obligations in respect of the payment of
Basic Rent, Stipulated Loss Value or Termination Value for the Aircraft or
altering the absolute and unconditional character of the obligations of
Lessee to pay Rent as set forth in Sections 3 and 16 of the Lease or (vi)
permit the creation of any Lien on the Collateral or any part thereof other
than Permitted Liens or deprive any Note Holder of the benefit of the Lien
of this Trust Indenture on the Collateral, except as provided in connection
with the exercise of remedies under Article IV hereof. So long as no Lease
Event of Default has occurred and is continuing, without the consent of
Lessee no amendment or supplement to this Trust Indenture or waiver or
modification of the terms hereof shall adversely affect Lessee.

          (c) At any time after the Delivery Date, the Owner Trustee and
the Loan Trustee may enter into one or more agreements supplemental hereto
without the consent of any Note Holder for any of the following purposes:
(i) (a) to cure any defect or inconsistency herein or in the Equipment
Notes, or to make any change not inconsistent with the provisions hereof
(provided that such change does not adversely affect the interests of any
Note Holder in its capacity solely as Note Holder) or (b) to cure any
ambiguity or correct any mistake; (ii) to evidence the succession of
another party as the Owner Trustee in accordance with the terms of the
Trust Agreement or to evidence the succession of a new trustee hereunder
pursuant hereto, the removal of the trustee hereunder or the appointment of
any co-trustee or co-trustees or any separate or additional trustee or
trustees; (iii) to convey, transfer, assign, mortgage or pledge any
property to or with the Loan Trustee or to make any other provisions with
respect to matters or questions arising hereunder so long as such action
shall not adversely affect the interests of the Note Holders in its
capacity solely as Note Holder; (iv) to correct or amplify the description
of any property at any time subject to the Lien of this Trust Indenture or
better to assure, convey and confirm unto the Loan Trustee any property
subject or required to be subject to the Lien of this Trust Indenture, the
Airframe or Engines or any Replacement Airframe or Replacement Engine: (v)
to add to the covenants of the Owner Trustee for the benefit of the Note
Holders, or to surrender any rights or power herein conferred upon the
Owner Trustee, the Owner Participant

<PAGE>

                                                                         38

or Lessee; (vi) to add to the rights of the Note Holders; and (vii) to
include on the Equipment Notes any legend as may be required by law.

          SECTION 9.02. Trustees Protected. If, in the opinion of the
institution acting as Owner Trustee under the Trust Agreement or the
institution acting as Loan Trustee hereunder, any document required to be
executed by it pursuant to the terms of Section 9.01 hereof adversely
affects any right, duty, immunity or indemnity with respect to such
institution under this Trust Indenture or the Lease, such institution may
in its discretion decline to execute such document.

          SECTION 9.03. Documents Mailed to Note Holders. Promptly after
the execution by the Owner Trustee or the Loan Trustee of any document
entered into pursuant to Section 9.01 hereof, the Loan Trustee shall mail,
by first class mail, postage prepaid, a copy thereof to Lessee and to each
Note Holder at its address last set forth in the Equipment Note Register,
but the failure of the Loan Trustee to mail such copies shall not impair or
affect the validity of such document.

          SECTION 9.04. No Request Necessary for Lease supplement or Trust
Agreement and Indenture Supplement. No written request or consent of the
Loan Trustee, the Note Holders or the Owner Participant pursuant to Section
9.01 hereof shall be required to enable the Owner Trustee to enter into any
Lease supplement specifically required by the terms of the Lease or to
execute and deliver a Trust Agreement and Indenture Supplement specifically
required by the terms hereof.

          SECTION 9.05. Notices to Liquidity Provider and Policy Provider.
Any request made to any Note Holder for consent to any amendment or
supplement to this Agreement or the Equipment Notes pursuant to this
Article IX shall be promptly furnished by the Loan Trustee to each
Liquidity Provider and the Policy Provider.

                                 ARTICLE X

                               MISCELLANEOUS

          SECTION 10.01. Termination of Trust Indenture. Upon (or at any
time after) payment in full of the Original Amount of, Make-Whole Amount,
if any, and interest on and all other amounts due under all Equipment Notes
and provided that there shall then be no other Secured Obligations due to
the Mortgage Indemnitees, the Note Holders and the Loan Trustee hereunder
or under the Participation Agreement, the Owner Trustee shall direct the
Loan Trustee to execute and deliver to or as directed in writing by the
Owner Trustee an appropriate instrument releasing the Aircraft and the
Engines from the Lien of this Trust Indenture and releasing the Lease, the
Guarantee, the Purchase Agreement, and the Purchase Agreement Assignment
with the Consent and Agreement attached thereto from the assignment and
pledge thereof hereunder and the Loan Trustee shall execute and deliver
such instrument as aforesaid and give written notice thereof to Lessee;
provided, however, that this Trust Indenture and the trusts created hereby
shall earlier terminate and this Trust Indenture shall be of no further
force or effect upon any sale or other final disposition by the Loan
Trustee of all property constituting part of the Collateral and the final
distribution by the Loan Trustee of all monies or other property or
proceeds constituting part of the Collateral in accordance with the terms
hereof. Except as aforesaid otherwise provided, this Trust Indenture and
the trusts created hereby shall continue in full force and effect in
accordance with the terms hereof.

<PAGE>

                                                                         39

          SECTION 10.02. No Legal Title to Collateral in Note Holders. No
holder of a Equipment Note shall have legal title to any part of the
Collateral. No transfer, by operation of law or otherwise, of any Equipment
Note or other right, title and interest of any Note Holder in and to the
Collateral or hereunder shall operate to terminate this Trust Indenture or
entitle such holder or any successor or transferee of such holder to an
accounting or to the transfer to it of any legal title to any part of the
Collateral.

          SECTION 10.03. Sale of Aircraft by Loan Trustee Is Binding. Any
sale or other conveyance of the Collateral, or any part thereof (including
any part thereof or interest therein), by the Loan Trustee made pursuant to
the terms of this Trust Indenture shall bind the Note Holders and shall be
effective to transfer or convey all right, title and interest of the Loan
Trustee, the Owner Trustee, the Owner Participant and such holders in and
to such Collateral or part thereof. No purchaser or other grantee shall be
required to inquire as to the authorization, necessity, expediency or
regularity of such sale or conveyance or as to the application of any sale
or other proceeds with respect thereto by the Loan Trustee.

          SECTION 10.04. Trust Indenture for Benefit of Owner Trustee, Loan
Trustee, Owner Participant, Lessee, Note Holders and the other Mortgage
Indemnitees. Nothing in this Trust Indenture, whether express or implied,
shall be construed to give any person other than the Owner Trustee, the
Loan Trustee, the Owner Participant, Lessee, the Note Holders and the other
Mortgage Indemnitees, any legal or equitable right, remedy or claim under
or in respect of this Trust Indenture.

          SECTION 10.05. Notices. Unless otherwise expressly specified or
permitted by the terms hereof, all notices, requests, demands,
authorizations, directions, consents, waivers or documents provided or
permitted by this Trust Indenture to be made, given, furnished or filed
shall be in writing, personally delivered or mailed by certified mail,
postage prepaid, or by facsimile or confirmed telex, and (i) if to the
Owner Trustee, addressed to it at its office at 79 South Main Street, 3rd
Floor, Salt Lake City, Utah 84111, Attention: Corporate Trust Department
(Telecopy No. (801) 246-5053)) with a copy to the Owner Participant
addressed as provided in clause (iii) below, (ii) if to the Loan Trustee,
addressed to it at its office Rodney Square North, 1100 North Market
Street, Wilmington, Delaware 19890-0001, Attention: Corporate Trust
Administration, Fax: 302-651- 8882, (iii) if to any Participant, Lessee,
any Note Holder or any other Mortgage Indemnitee, addressed to such party
at such address as is set forth in the Participation Agreement or as such
party shall have furnished by notice to the Owner Trustee and the Loan
Trustee, or, until an address is so furnished, addressed to the address of
such party (if any) set forth in the Equipment Note Register. Whenever any
notice in writing is required to be given by the Owner Trustee, the Owner
Participant or the Loan Trustee or any Note Holder or Lessee to any of the
other of them, such notice shall be deemed given and such requirement
satisfied when such notice is received, or if such notice is mailed by
certified mail, postage prepaid, three Business Days after being mailed,
addressed as provided above. Any party hereto may change the address to
which notices to such party will be sent by giving notice of such change to
the other parties to this Trust Indenture.

          SECTION 10.06. Severability. Any provision of this Trust
Indenture which is prohibited or unenforceable in any jurisdiction shall,
as to such jurisdiction, be ineffective to the extent of such prohibition
or unenforceability without invalidating the remaining provisions hereof.
Any such prohibition or unenforceability in any particular jurisdiction
shall not invalidate or render unenforceable such provision in any other
jurisdiction.

          SECTION 10.07. No Oral Modification or Continuing Waivers. No
term or provision of this Trust Indenture or the Equipment Notes may be by
the Owner Trustee and the

<PAGE>

                                                                         40

Loan Trustee, in compliance with Section 9.01 hereof. Any waiver of the
terms hereof or of any Equipment Note shall be effective only in the
specific instance and for the specific purpose given.

          SECTION 10.08. Successors and Assigns. All covenants and
agreements contained herein shall be binding upon, and inure to the benefit
of, each of the parties hereto and the permitted successors and assigns of
each, all as herein provided. Any request, notice, direction, consent,
waiver or other instrument or action by any Note Holder shall bind the
successors and assigns of such holder. This Trust Indenture and the
Collateral shall not be affected by any amendment or supplement to the
Trust Agreement or by any other action taken under or in respect of the
Trust Agreement, except that each reference in this Trust Indenture to the
Trust Agreement shall mean the Trust Agreement as amended and supplemented
from time to time to the extent permitted hereby, thereby and by the
Participation Agreement. Each Note Holder by its acceptance of a Equipment
Note agrees to be bound by this Trust Indenture and all provisions of the
Participation Agreement applicable to a Mortgage Participant or a Note
Holder.

          SECTION 10.09. Headings. The headings of the various Articles and
Sections herein and in the table of contents hereto are for convenience of
reference only and shall not define or limit any of the terms or provisions
hereof.

          SECTION 10.10. Normal Commercial Relations. Anything contained in
this Trust Indenture to the contrary notwithstanding, the Owner Trustee (in
its individual capacity), the Loan Trustee (in its individual capacity),
any Participant or any bank or other Affiliate of such Participant may
conduct any banking or other financial transactions, and have banking or
other commercial relationships, with Lessee, fully to the same extent as if
this Trust Indenture were not in effect, including without limitation the
making of loans or other extensions of credit to Lessee for any purpose
whatsoever, whether related to any of the transactions contemplated hereby
or otherwise.

          SECTION 10.11. Governing Law; Counterpart Form. THIS TRUST
INDENTURE SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAW
OF THE STATE OF NEW YORK. THIS TRUST INDENTURE IS BEING DELIVERED IN THE
STATE OF NEW YORK. This Trust Indenture may be executed by the parties
hereto in separate counterparts (or upon separate signature pages bound
together into one or more counterparts), each of which when so executed and
delivered shall be an original, but all such counterparts shall together
constitute but one and the same instrument.

          SECTION 10.12. Voting By Note Holders. All votes of the Note
Holders shall be governed by a vote of a Majority in Interest of Note
Holders, except as otherwise provided herein.

          SECTION 10.13. Bankruptcy. It is the intention of the parties
that the Owner Trustee, as lessor under the Lease (and the Loan Trustee as
assignee of the Owner Trustee hereunder), shall be entitled to the benefits
of Section 1110 with respect to the right to take possession of the
Aircraft, Airframe, Engines and Parts as provided in the Lease in the event
under Chapter 11 of the Bankruptcy Code in which Lessee is a debtor, and in
any instance where more than one construction is possible of the terms and
conditions hereof or any other pertinent Operative Agreement, each such
party agrees that a construction which would preserve such benefits shall
control over any construction which would not preserve such benefits.

          SECTION 10.14. No Action Contrary to Lessee's Rights Under the
Lease. Notwithstanding any of the provisions of this Trust Indenture or the
Trust Agreement to the

<PAGE>

                                                                         41

contrary, neither the Loan Trustee nor the Owner Trustee will take any
action contrary to Lessee's rights under the Lease, including the right to
possession and use of, and the quiet enjoyment of, the Aircraft, except in
accordance with provisions of the Lease.

          SECTION 10.15. Payments With Respect to Insured Obligations.
Anything in this Trust Indenture or the Equipment Notes to the contrary
notwithstanding, any payment with respect to the Insured Obligations (as
defined in the Policy) that is made with funds received pursuant to the
terms of the Policy shall not be considered payment on the Equipment Notes
by the Lessee, shall not discharge any obligations of the Lessee to make
such payment and shall not result in the payment of (or the provisions for
the payment of) any Insured Obligations for the purposes of Section 2.05.

<PAGE>

                                                                          1

          IN WITNESS WHEREOF, the parties hereto have caused this Trust
Indenture duly executed by their respective officers thereof duly
authorized as of the day and year first above written.

                                         FIRST SECURITY BANK, NATIONAL
                                         ASSOCIATION,
                                         not in its individual capacity, except
                                         as expressly provided herein, but
                                         solely as Owner Trustee, as Owner
                                         Trustee

                                         By:______________________________
                                            Name:
                                            Title:

                                         WILMINGTON TRUST COMPANY,
                                         as Loan Trustee

                                         By:______________________________
                                            Name:
                                            Title:

<PAGE>

                                                                  EXHIBIT A
                                                                         TO
                                               TRUST INDENTURE AND MORTGAGE

                         TRUST INDENTURE SUPPLEMENT

                                  [N___AT]

          This TRUST INDENTURE SUPPLEMENT [N___AT], dated ____________,
2000 (herein called this "Trust Indenture Supplement") of FIRST SECURITY
BANK, NATIONAL ASSOCIATION, not in its individual capacity, but solely as
Owner Trustee (herein called the "Owner Trustee") under that certain Trust
Agreement [N___AT] dated as of _____________, 2000 (the "Trust Agreement"),
between the Owner Trustee and the Owner Participant named therein.

                                WITNESSETH:

          WHEREAS, the Trust Indenture and Mortgage [N___AT], dated as of
________________, 2000 (the "Trust Indenture") between the Owner Trustee
and Wilmington Trust Company, as Loan Trustee (the "Loan Trustee"),
provides for the execution and delivery of one or more supplements thereto
substantially in the form hereof, which shall particularly describe the
Aircraft (such term and other defined terms in the Indenture being herein
used with the same meanings) and any Replacement Airframe or Replacement
Engine and shall specifically mortgage such Aircraft, Replacement Airframe
or Replacement Engine, as the case may be, to the Loan Trustee; and

          WHEREAS, the Trust Indenture relates to the Airframe and Engines
described below, and a counterpart of the Trust Indenture is attached
hereto and made a part hereof and this Trust Indenture Supplement, together
with such counterpart of the Trust Indenture, is being filed for
recordation on the date hereof with the FAA as one document;

          NOW, THEREFORE, this Trust Indenture Supplement witnesseth that
the Owner Trustee hereby confirms that the Lien of the Trust Indenture on
the Collateral covers all of Owner Trustee's right, title and interest in
and to the following described property:

                                  AIRFRAME

          One airframe identified as follows:

<TABLE>
<CAPTION>
<S>            <C>          <C>                <C>                  <C>
                                               FAA             Manufacturer's
         Manufacturer      Model      Registration Number      Serial Number

            Boeing        757-200
</TABLE>

together with all of the Owner Trustee's right, title and interest in and
to all Parts of whatever nature, whether now owned or hereinafter acquired
and which are from time to time incorporated or installed in or attached to
said airframe.

                              AIRCRAFT ENGINES

          Two aircraft engines, each such engine having 750 or more rated
take-off horsepower or the equivalent thereof, identified as follows:

<PAGE>

                                    A-2

<TABLE>
<CAPTION>
<S>            <C>          <C>                <C>                  <C>
                                               FAA             Manufacturer's
         Manufacturer      Model      Registration Number      Serial Number

         Rolls Royce   RB.211-535E4
</TABLE>

          Together with all of Owner Trustee's right, title and interest in
and to all Parts of whatever nature, whether now owned or hereafter
acquired and which are from time to time incorporated or installed in or
attached to any of such engines.

          Together with all of Owner Trustee's right, title and interest in
and to all Parts of whatever nature, which from time to time are included
within the definition of "Airframe" or "Engine", whether now owned or
hereafter acquired, including all substitutions, renewals and replacements
of and additions, improvements, accessions and accumulations to the
Airframe and Engines (other than additions, improvements, accessions and
accumulations which constitute appliances, parts, instruments,
appurtenances, accessories, furnishings or other equipment excluded from
the definition of Parts).

          As further security for the obligations referred to above and
secured by the Trust Indenture and hereby, the Owner Trustee has granted,
bargained, sold, assigned, transferred, conveyed, mortgaged, pledged and
confirmed, and does hereby grant, bargain, sell, assign, transfer, convey,
mortgage, pledge and confirm, unto the Loan Trustee, its successors and
assigns, for the security and benefit of the Note Holders and the Mortgage
Indemnitees, in the trust created by the Trust Indenture, all of the right,
title and interest of the Owner Trustee in, to and under the Lease of even
date herewith covering the property described above.

          Notwithstanding any provision hereof, no Excluded Payment shall
constitute security for any of the aforementioned obligations.

          TO HAVE AND TO HOLD all and singular the aforesaid property unto
the Loan Trustee, its successors and assigns, in trust for the equal and
proportionate benefit and security of the Note Holders and the Mortgage
Indemnitees, except as provided in Section 2.15 and Article III of the
Trust Indenture without any preference, distinction or priority of any one
Equipment Note over any other by reason of priority of time of issue, sale,
negotiation, date of maturity thereof or otherwise for any reason
whatsoever, and for the uses and purposes and subject to the terms and
provisions set forth in the Trust Indenture.

          This Trust Indenture Supplement shall be construed as
supplemental to the Trust Indenture and shall form a part thereof. The
Trust Indenture is each hereby incorporated by reference herein and is
hereby ratified, approved and confirmed.

          This Trust Indenture Supplement is being delivered in the State
of New York.

          AND, FURTHER, the Owner Trustee hereby acknowledges that the
Aircraft referred to in this Trust Indenture Supplement and the aforesaid
Lease has been delivered to the Owner Trustee and is included in the
property of the Owner Trustee covered by all the terms and conditions of
the Trust Agreement, subject to the pledge and mortgage thereof under the
Trust Indenture.

<PAGE>

                                    A-1

          IN WITNESS WHEREOF, the Owner Trustee has caused this Trust
Indenture Supplement to be duly executed by one of its officers, thereunto
duly authorized, on the day and year first above written.

                                         FIRST SECURITY BANK, NATIONAL
                                         ASSOCIATION,
                                         not in its individual capacity, but
                                         solely as Owner Trustee, Owner Trustee

                                         By:______________________________
                                            Name:
                                            Title:

<PAGE>

                                    A-1

                                 SCHEDULE I

              ORIGINAL AMOUNT, INTEREST RATE AND AMORTIZATION

    G          ____% Equipment Notes due __________, 20__       $_____________
    C          ____% Equipment Notes due __________, 20__       $_____________

<PAGE>

                                    A-1

                        Equipment Notes Amortization

                                  Series G

                               Aircraft _____

                                                   Percentage of Original

Payment Date                                         Amount to be Paid

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