Document:

<PAGE>

                                                               EXECUTION VERSION

                             NOTE PURCHASE AGREEMENT
                                 AMENDMENT NO. 1
                                [ATA EETC 2002-1]

                          DATED AS OF OCTOBER 15, 2002

                                      AMONG

                            AMERICAN TRANS AIR, INC.,

                     ATA HOLDINGS CORP. (F/K/A AMTRAN, INC.)
                                  AS GUARANTOR,

                            WILMINGTON TRUST COMPANY,
                       AS PASS THROUGH TRUSTEE UNDER EACH
                      OF THE PASS THROUGH TRUST AGREEMENTS,

                            WILMINGTON TRUST COMPANY,
                             AS SUBORDINATION AGENT,

                WELLS FARGO BANK NORTHWEST, NATIONAL ASSOCIATION,
                                 AS ESCROW AGENT

                                       AND

                            WILMINGTON TRUST COMPANY,
                                 AS PAYING AGENT

<PAGE>

                     NOTE PURCHASE AGREEMENT AMENDMENT NO. 1
                                (ATA EETC 2002-1)

RECITALS:

A.       Each of American Trans Air, Inc., an Indiana corporation (the
         "Company"), ATA Holdings Corp., formerly known as Amtran, Inc., an
         Indiana corporation (the "Guarantor"), Wilmington Trust Company, a
         Delaware banking corporation ("WTC"), not in its individual capacity
         except as otherwise expressly provided in the Note Purchase Agreement
         (as such term is defined below), but solely as trustee (in such
         capacity together with its successors in such capacity, the "Pass
         Through Trustee") under each of the two separate Pass Through Trust
         Agreements, WTC, not in its individual capacity except as otherwise
         expressly provided in the Note Purchase Agreement, but solely as
         subordination agent and trustee (in such capacity together with its
         successors in such capacity, the "Subordination Agent") under the
         Intercreditor Agreement, Wells Fargo Bank Northwest, National
         Association, a national banking association, as escrow agent (in such
         capacity together with its successors in such capacity, the "Escrow
         Agent"), under each of the Escrow and Paying Agent Agreements (as
         defined below), and WTC, not in its individual capacity except as
         otherwise expressly provided herein, but solely as Paying Agent (in
         such capacity together with its successors in such capacity, the
         "Paying Agent") under each of the Escrow and Paying Agent Agreements,
         entered into a Note Purchase Agreement dated as of March 28, 2002 (the
         "Note Purchase Agreement"). All capitalized terms in this Amendment
         that are not defined herein will have the same meaning as provided in
         the Note Purchase Agreement. All references to "Sections" or "Exhibits"
         refer to Sections and Exhibits of the Note Purchase Agreement, unless
         otherwise noted herein. The Company, Guarantor, WTC, Pass Through
         Trustee, Subordination Agent, Escrow Agent, and Paying Agent are
         collectively referred to in this Amendment as the "Parties."

B.       The Parties have noted certain errata in the Note Purchase Agreement.

C.       The Parties wish to correct such errata, and thus amend and revise the
         Note Purchase Agreement as provided below.

Therefore, for good and valuable consideration, the Parties hereby agree,
effective as of the 15th day of October, 2002, to amend and revise the Note
Purchase Agreement as follows:

1. Except as specifically modified in this Amendment, the terms of the Note
Purchase Agreement will remain in full force and effect. In the event that the
terms of this Amendment conflict in any way with the terms of the Note Purchase
Agreement, the terms of this Amendment will control.

                                Note Purchase Agreement Amendment No. 1 - Page 1
<PAGE>

2. Schedule VI to the Note Purchase Agreement (entitled Mandatory Economic
Terms) will be deleted in its entirety, and replaced with the attached Revised
Schedule VI to the Note Purchase Agreement. To clarify, the intended effects of
such replacement are:

a. to revise the first paragraph of that portion of Schedule VI captioned
"Maximum Principal Amount" to delete the language indicated by strike-out text
below, to replace such deleted text with the language indicated by
double-underlined text below, and to retain the language indicated by italicized
text below:

         The aggregate original principal amount of all Equipment Notes for an
         Aircraft shall not exceed the maximum principal amount of the Equipment
         Notes indicated for such Aircraft as set forth in the Private Placement
         Memorandum under "Summary -- Secured Promissory Notes and the Aircraft"
         under the column "Maximum Principal Amount." The aggregate original
         principal amount of all Equipment Notes of any series shall not exceed
         the aggregate face amount of all Certificates of the related class.

b. to revise that portion of Schedule VI captioned "Average Life (in years)" to
delete the language indicated by strike-out text below, to replace such deleted
text with the language indicated by double-underlined text below, and to retain
the language indicated by italicized text below:

Average life (in years)

         As of the Delivery Period Termination Date (or if earlier, the date of
         the occurrence of a Triggering Event), the average life of the Class A
         Certificates and the Class B Certificates (x) with respect to the Class
         A Certificates shall be between, (i) prior to the funding contemplated
         by the Delayed Funding Implementation Agreement 7.49 to and 7.69 years
         from the Issuance Date , and (ii) subsequent to the funding
         contemplated by the Delayed Funding Implementation Agreement 7.14 and
         7.34 years from the Issuance Date, subject to final reoptimization, and
         (y) with respect to the Class B Certificates shall not exceed 4 years
         from the Issuance Date (computed without regard to the acceleration of
         any Equipment Notes and after giving effect to any special distribution
         on the Certificates thereafter required in respect of unused Deposits).

                                Note Purchase Agreement Amendment No. 1 - Page 2
<PAGE>

c. to delete that portion of Schedule VI captioned "Amortization Schedule",
including the text below such caption, as indicated by strike-out text below:

d. to revise that portion of Schedule VI captioned "Final Maturity Date" to
delete the language indicated by strike-out text below, to replace such deleted
text with the language indicated by double-underlined text below, and to retain
the language indicated by italicized text below:

Final Maturity Dates

         Equipment Notes

         Series A:            not to extend beyond February 20, 2013.

         Series B:            not to extend beyond February 20, 2008.

         Certificates

         Class A:          August 20, 2014
         Class B:          August 20, 2009

e. to revise the first paragraph of that portion of Schedule VI captioned "Lease
Payment Dates" to add the language indicated by double-underlined text below,
while retaining the language indicated by italicized text below

Lease Payment Dates: February 20, May 20, August 20 and November 20, and may
include additional Lease Payment Dates (i) January 20, 2003, March 20, 2003,
April 20, 2003, and June 20, 2003, and (ii) the twentieth anniversary of the
Delivery Date under the applicable Lease.

f. no other change to Schedule VI is intended to be effected by this Amendment.

                  [Remainder of Page Intentionally Left Blank]

                                Note Purchase Agreement Amendment No. 1 - Page 3
<PAGE>

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

                        AMERICAN TRANS AIR, INC.

                        By
                          ----------------------------------------------------
                                 Name:
                                 Title:
                                 Address:    7337 West Washington Street
                                             Indianapolis, Indiana  46231

                                 Attention:  Treasurer
                                 Facsimile:  (317) 240-7091

                        ATA HOLDINGS CORP. (f/k/a AMTRAN, INC.), as Guarantor

                        By
                          ----------------------------------------------------
                                 Name:
                                 Title:
                                 Address:    7337 West Washington Street
                                             Indianapolis, Indiana  46231

                                 Attention:  Treasurer
                                 Facsimile:  (317) 240-7091

                      Note Purchase Agreement Amendment No. 1 - Signature Page 1
<PAGE>

                        WILMINGTON TRUST COMPANY, not in its
                        individual capacity, except as
                        otherwise provided herein, but solely
                        as Pass Through Trustee

                        By
                          ----------------------------------------------------
                                 Name:
                                 Title:
                                 Address:    Rodney Square North
                                             1100 North Market Street
                                             Wilmington, Delaware  19890

                                 Attention:  Corporate Trust Administration
                                 Facsimile:  (302) 636-6140

                        WILMINGTON TRUST COMPANY, not in its
                        individual capacity, except as
                        otherwise provided herein, but solely
                        as Subordination Agent

                        By
                          ----------------------------------------------------
                                 Name:
                                 Title:
                                 Address:    Rodney Square North
                                             1100 North Market Street
                                             Wilmington, Delaware  19890

                                 Attention:  Corporate Trust Administration
                                 Facsimile:  (302) 636-6140

                      Note Purchase Agreement Amendment No. 1 - Signature Page 2
<PAGE>

                        WELLS FARGO BANK NORTHWEST,
                        NATIONAL ASSOCIATION,
                        as Escrow Agent

                        By
                          ----------------------------------------------------
                                 Name:
                                 Title:
                                 Address:    79 South Main Street
                                             3rd Floor
                                             Salt Lake City, Utah 84111

                                 Attention:  Corporate Trust Department
                                 Facsimile:  (801) 246-5053

                        WILMINGTON TRUST COMPANY, not in its
                        individual capacity, except as
                        otherwise provided herein, but solely
                        as Paying Agent

                        By
                          ----------------------------------------------------
                                 Name:
                                 Title:
                                 Address:    Rodney Square North
                                             1100 North Market Street
                                             Wilmington, Delaware  19890

                                 Attention:  Corporate Trust Administration
                                 Facsimile:  (302) 636-6140

                      Note Purchase Agreement Amendment No. 1 - Signature Page 3
<PAGE>

                             Revised SCHEDULE VI to
                             Note Purchase Agreement

                            MANDATORY ECONOMIC TERMS

Equipment Notes

Obligor: American Trans Air, Inc., or an Owner Trust

Maximum Principal Amount:

The aggregate original principal amount of all Equipment Notes for an Aircraft
shall not exceed the maximum principal amount of the Equipment Notes indicated
for such Aircraft as set forth in the Private Placement Memorandum under
"Summary -- Secured Promissory Notes and the Aircraft" under the column "Maximum
Principal Amount." The aggregate original principal amount of all Equipment
Notes of any series shall not exceed the aggregate face amount of all
Certificates of the related class.

Initial loan to aircraft value (with the value of any Aircraft equal to the
value for such Aircraft set forth in the Private Placement Memorandum in
"Summary - The Offering - Secured Promissory Notes and the Aircraft" under the
column "Appraised Base Value"):

         Series A:         not in excess of 51%
         Series B:         not in excess of 66%

The loan to aircraft value for each series of Equipment Notes issued in respect
of each Aircraft (computed (i) after aggregating the principal amount of all
series of Equipment Notes that rank senior to the series of Equipment Notes for
which loan to aircraft value is being calculated and (ii) as of the date of the
issuance thereof on the basis of the Assumed Appraised Value of such Aircraft
and the Depreciation Assumption (as defined in the Private Placement Memorandum
in the Glossary)) must not exceed as of any Regular Distribution Date thereafter
(assuming no default in the payment of the Equipment Notes) the following
amounts:

         Series A:         not in excess of 51%
         Series B:         not in excess of 66%

Initial average life (in years)

         Series A:         not extend beyond 8 years from the Issuance Date
         Series B:         not extend beyond 5 years from the Issuance Date

Average life (in years)

Note Purchase Agreement Amendment No. 1 (Revised Schedule VI to
                                                    Note Purch. Agrmt.) - Page 1
<PAGE>

         As of the Delivery Period Termination Date (or if earlier, the date of
         the occurrence of a Triggering Event), the average life of the Class A
         Certificates and the Class B Certificates shall be (x) with respect to
         the Class A Certificates between (i) prior to the funding contemplated
         by the Delayed Funding Implementation Agreement 7.49 and 7.69 years
         from the Issuance Date, and (ii) subsequent to the funding contemplated
         by the Delayed Funding Agreement Letter 7.14 and 7.34 years from the
         Issuance Date, subject to final reoptimization, and (y) with respect to
         the Class B Certificates shall not exceed 4 years from the Issuance
         Date (computed without regard to the acceleration of any Equipment
         Notes and after giving effect to any special distribution on the
         Certificates thereafter required in respect of unused Deposits).

Final Maturity Dates

         Equipment Notes:

         Series A:         not to extend beyond February 20, 2013
         Series B:         not to extend beyond February 20, 2008

         Certificates:

         Class A:          August 20, 2014
         Class B:          August 20, 2009

Debt Rate (computed on the basis of a 360-day year consisting of twelve 30-day
months, payable semi-annually in arrears)

         Series A:         8.328%
         Series B:         10.699%

Payment Dates:    February 20, May 20, August 20 and November 20

Make-Whole Premiums: as provided in Section 1.01 of the forms of Trust Indenture
                     marked as Exhibit A-3 and C-2 of the Note Purchase
                     Agreement (the "Trust Indenture Form")

Redemption
and Purchase:        as provided in Article II of the Trust Indenture Form

Lease

Term:                The Base Lease Term shall expire by its terms on or after
                     final maturity date of the related Series A Equipment Notes

Note Purchase Agreement Amendment No. 1 (Revised Schedule VI to
                                                    Note Purch. Agrmt.) - Page 2

<PAGE>

Lease Payment Dates:                February 20, May 20, August 20 and November
                                    20, and may include additional Lease Payment
                                    Dates (i) January 20, 2003, March 20, 2003,
                                    April 20, 2003, and June 20, 2003, and (ii)
                                    the twentieth anniversary of the Delivery
                                    Date under the applicable Lease.

Minimum Rent:                       Basic Rent due and payable on each Payment
                                    Date shall be at least sufficient to pay in
                                    full, as of such Payment Date (assuming
                                    timely payment of the related Equipment
                                    Notes prior to such Date), the aggregate
                                    principal amount of scheduled installments
                                    due on the related Equipment Notes
                                    outstanding on such Payment Date together
                                    with accrued and unpaid interest thereon.

Supplemental Rent:                  Sufficient to cover the sums described in
                                    clauses (1) through (6) of such term as
                                    defined in Section 1 of the forms of Leases
                                    (the "Lease Form") marked as Exhibits A-2-1
                                    and A-2-2 of the Note Purchase Agreement.

Stipulated Loss Value:              At all times equal to or greater than the
                                    then outstanding principal amount of
                                    the related Equipment Notes plus, for any
                                    date other than a Lease Payment
                                    Date, accrued interest thereon

EBO Price:                          Equal to or greater than the then-current
                                    Stipulated Loss Value

Termination Value:                  At all times equal to or greater than the
                                    then outstanding principal amount of
                                    the related Equipment Notes plus, for any
                                    date other than a Lease Payment
                                    Date, accrued interest thereon

All-risk hull insurance:            not less than Stipulated Loss Value, subject
                                    to Lessee's right to self-insure on terms no
                                    more favorable to Lessee in any material
                                    respect than those set forth in Section 11
                                    of the Lease Form

Minimum Liability
Insurance Amount:                   as set forth in Schedule I of the Lease Form

Past Due Rate:                      as set forth in Schedule I of the Lease Form

Note Purchase Agreement Amendment No. 1 (Revised Schedule VI to
                                                    Note Purch. Agrmt.) - Page 3

<PAGE>

Participation Agreement Loan Trustee, Subordination Agent, Liquidity Providers,
Pass Through Trustees, Escrow Agents and Note Holders indemnified against
Expenses and Taxes to the extent set forth in Section 9 of the form of the
Participation Agreement (the "Leased Aircraft Participation Form") marked as
Exhibit A-1 to the Note Purchase Agreement and Section 7 of the form of the
Participation Agreement (the "Owned Aircraft Participation Form") marked as
Exhibit C-1 of the Note Purchase Agreement.

Note Purchase Agreement Amendment No. 1 (Revised Schedule VI to
                                                    Note Purch. Agrmt.) - Page 4<PAGE>

                                                                      VPKK DRAFT
                                                                         3/27/02

================================================================================

                               INDEMNITY AGREEMENT

                           DATED AS OF MARCH 28, 2002

                                     BETWEEN

                        INTESABCI S.P.A., NEW YORK BRANCH
                                  as Depositary

                            AMERICAN TRANS AIR, INC.

                                       AND

                                  AMTRAN, INC.

================================================================================

<PAGE>

                                TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                                                       PAGE
                                                                                                       ----
<S>           <C>                                                                                     <C>
SECTION 1.    INDEMNITY PAYMENTS.........................................................................1

     1.01     Indemnity Payments.........................................................................1

     1.02     Overdue Amounts............................................................................2

     1.03     Reduction of Notional Amounts..............................................................2

     1.04     Subsequent Index Period....................................................................3

     1.05     Replacement Drawing........................................................................3

     1.06     Prepayment Drawing.........................................................................3

SECTION 2.    CASH COLLATERAL............................................................................3

SECTION 3.    COLLATERAL ACCOUNT AND INVESTMENTS.........................................................4

     3.01     Collateral Account.........................................................................4

     3.02     Investment of Balance in Collateral Account................................................4

     3.03     Pledge.....................................................................................4

     3.04     Application and Termination................................................................4

     3.05     No Duplication.............................................................................4

SECTION 4.    REPRESENTATIONS AND WARRANTIES.............................................................5

SECTION 5.    PAYMENTS, NO SETOFF........................................................................6

SECTION 6.    FEES.......................................................................................6

SECTION 7.    INCREASED COSTS............................................................................6

SECTION 8.    CAPITAL ADEQUACY...........................................................................7

SECTION 9.    GUARANTEE..................................................................................7

SECTION 10.   BREAKAGE...................................................................................9

SECTION 11.   EXPENSES; INDEMNITY........................................................................9

SECTION 12.   REMEDIES..................................................................................10

SECTION 13.   AMENDMENT, ETC............................................................................10

SECTION 14.   NOTICES...................................................................................10

SECTION 15.   ENTIRE AGREEMENT..........................................................................10

SECTION 16.   GOVERNING LAW.............................................................................11

SECTION 17.   WAIVER OF JURY TRIAL RIGHT................................................................11

SECTION 18.   COUNTERPARTS..............................................................................11
</TABLE>

                                        i

<PAGE>

                                TABLE OF CONTENTS
                                   (continued)

<TABLE>
<CAPTION>
                                                                                                       PAGE
                                                                                                       ----
<S>           <C>                                                                                     <C>
SECTION 19.   NO THIRD-PARTY BENEFICIARIES..............................................................11
</TABLE>

                                       ii

<PAGE>

                               INDEMNITY AGREEMENT

       INDEMNITY AGREEMENT, dated as of March 28, 2002 (this "Agreement")
between INTESABCI S.P.A., New York Branch ("IntesaBci," and in its capacity as
depositary bank under the Deposit Agreements referred to below, the
"Depositary"), AMERICAN TRANS AIR, INC. ("ATA") and AMTRAN, INC. (the
"Guarantor" or "Amtran").

                              W I T N E S S E T H:
                               - - - - - - - - - -

       WHEREAS, in connection with the financing of up to four aircraft to be
operated by ATA, Wells Fargo Bank Northwest, N.A., as escrow agent (the "Escrow
Agent"), and the Depositary are entering into (a) the Deposit Agreement (Class
A), dated as of March 28, 2002 (the "Class A Deposit Agreement"), and (b) the
Deposit Agreement (Class B) dated as of March 28, 2002 (the "Class B Deposit
Agreement") (the Class A Deposit Agreement and the Class B Deposit Agreement,
collectively, the "Deposit Agreements"), pursuant to which, among other things,
(i) the Depositary will establish accounts into and from which the Escrow Agent
shall make deposits, requests, withdrawals and re-deposits and (ii) the
Depositary will pay the Escrow Agent a fixed rate of interest on each Deposit;

       WHEREAS, on the date hereof, the Escrow Agent shall deposit (i)
$__________ with the Depositary under the Class A Deposit Agreement and (ii)
$_________ with the Depositary under the Class B Deposit Agreement;

       WHEREAS, on the date hereof, ATA shall deposit $______________ (the
"Specified Amount") with IntesaBci as cash collateral securing the Secured
Obligations; and

       WHEREAS, it is a condition precedent to the obligation of the Depositary
to enter into the Deposit Agreements that ATA and the Guarantor enter into this
Indemnity Agreement.

       NOW, THEREFORE, in consideration of the Depositary entering into the
Deposit Agreements and the mutual agreements herein contained and other good and
valuable consideration, the receipt and adequacy of which are hereby
acknowledged, the parties hereto agree as follows (capitalized terms not defined
herein shall have the meanings set forth in Annex A hereto or if not therein
defined, as defined in the Deposit Agreements):

       SECTION 1. Indemnity Payments.

       1.01  Indemnity Payments. ATA agrees to pay (each such payment, an
"Indemnity Payment"), to IntesaBci no later than 11:00 a.m. (New York City time)
on each February 20, May 20, August 20 and November 20 on which interest is due
under Section 2.2 of each Deposit Agreement and on the Final Withdrawal Date
(each such date, an "Indemnity Payment Date"):

             (a) in the case of each Interest Payment Date occurring prior to
the Final Withdrawal Date, an amount equal to the excess, if any, of (i) the
aggregate amount of interest accrued on the Deposits in accordance with each
Deposit Agreement during the Relevant Period for, and due and payable on, such
Interest Payment Date over (ii) the sum of the Notional Earnings for each
Notional Amount during such Relevant Period;

<PAGE>

             (b) in the case of a Final Withdrawal Date which is not an Interest
Payment Date, an amount equal to the excess, if any, of (i) the aggregate amount
of interest accrued on the Deposits in accordance with each Deposit Agreement
during the Relevant Period for, and due and payable on, the Final Withdrawal
Date over (ii) the sum of the Notional Earnings on the amount of each Notional
Amount outstanding on the Final Withdrawal Date (prior to giving effect to the
Final Withdrawals under and as defined in each Deposit Agreement) during such
Relevant Period; and

             (c) in the case of each Interest Payment Date occurring after the
Final Withdrawal Date or a Final Withdrawal Date occurring on an Interest
Payment Date, an amount equal to the excess, if any, of (i) the amount of
interest accrued on the Deposits in accordance with each Deposit Agreement
during the Relevant Period for, and due and payable on, such Interest Payment
Date over (ii) the sum of (x) the sum of the Notional Earnings for each Notional
Amount during such Relevant Period minus (y) unless the Final Withdrawal Date is
an Interest Payment Date, the amount, if any, described in clause (b)(ii) above.

Not later than three (3) Business Days prior to each Indemnity Payment Date,
IntesaBci shall provide to ATA an estimate of the Indemnity Payment payable on
such Indemnity Payment Date in accordance with the immediately preceding
sentence. Not later than one Business Day prior to each Indemnity Payment Date,
IntesaBci shall provide ATA with an invoice specifying the Indemnity Payment
payable on such Indemnity Payment Date, which invoice shall be prima facie
evidence of ATA's obligation to pay such Indemnity Payment. For avoidance of
doubt, ATA shall not be obligated to pay any Indemnity Payment to the extent
IntesaBci, as Depositary, has not paid interest on the Deposits or any other
amount payable by it in accordance with the terms of the Deposit Agreements.

       1.02  Overdue Amounts. (a) ATA agrees to pay to IntesaBci interest on any
amount that shall not be paid by ATA when due under this Agreement (an "Overdue
Amount") at the Base Rate plus 2%. Such interest shall be payable on demand and
accrue on the portion of such overdue amount remaining unpaid from time to time,
from (and, including) the date that such amount is not paid when due to (but
excluding) the date when such overdue amount is paid in full, and shall be
payable upon demand from time to time by IntesaBci.

             (b) Without limiting the generality of the foregoing, overdue
interest accrued under Section 1.02(a) because amounts are on deposit in the
Collateral Account which IntesaBci would be entitled to withdraw and apply in
accordance with Section 3.03 hereof, but which IntesaBci cannot so withdraw and
apply due to the operation of the "automatic stay" provisions of the United
States Bankruptcy Code, shall be deemed Overdue Amounts from and including the
date as of which such provisions are in effect to but excluding the date on
which IntesaBci is permitted to apply and withdraw them.

       1.03  Reduction of Notional Amounts. If one or more Deposits are
withdrawn on any day in accordance with the Deposit Agreements, the Notional
Amounts shall be deemed to be reduced by an amount equal to the excess of (i)
the aggregate amount of the Deposits withdrawn on such day over (ii) the
aggregate amount redeposited with the Depositary on such day under each Deposit
Agreement; provided that the Notional Amounts shall be deemed to be increased by
the aggregate amount redeposited with the Depositary under such Deposit
Agreement. Such

                                       2
<PAGE>

reduction shall be applied to the Notional Amounts in the same order that the
Index Period for each Notional Amount terminates (i.e., the reduction shall be
applied first to the Notional Amount which shall then have an Index Period
ending on or closest to the applicable day of withdrawal); provided that if the
last day of the Index Period for two or more Notional Amounts shall be the same,
then the reduction applied to such Notional Amounts shall be applied in inverse
order to the Notional Amounts deemed reduced as a result of the relevant Deposit
or Deposits withdrawal (pro rata as appropriate).

       1.04  Subsequent Index Period. No later than one (1) Business Day prior
to the end of the Initial Index Period, and each Subsequent Index Period, or
during any Floating Index Period, for any Notional Amount, ATA may, by written
notice to IntesaBci, select an additional period (each, a "Subsequent Index
Period") for such Notional Amount not to extend beyond October 14, 2002 in each
instance; provided that if ATA shall not select a Subsequent Index Period for
such Notional Amount by 2:00 p.m. (New York City time) on such Business Day, ATA
shall have deemed to have selected a Subsequent Index Period for such Notional
Amount from and including the last day of the Initial Index Period or the
immediately preceding Subsequent Index Period (as the case may be) to but
excluding the next Business Day thereafter. Upon the selection (or deemed
selection) of a Subsequent Index Period for a Notional Amount, IntesaBci shall
promptly determine and then provide written notice to ATA of the Index Rate for
such Subsequent Index Period for such Notional Amount. The Index Rate for any
one day Subsequent Index Period shall be the Federal Funds Index Rate for such
day (as determined by IntesaBci). The Index Rate for any Subsequent Index Period
(other than for one day) shall be an interest rate per annum determined by
IntesaBci in the same manner as the indicative interest rates per annum of
Initial Period (other than for one day) heretofore provided to ATA by IntesaBci
were determined, which determination shall be prima facie evidence of the amount
thereof.

       1.05  Replacement Drawing. In the event of a Replacement Drawing, ATA
shall pay to the Depositary no later than 11:00 a.m. (New York City time) on:

             (a) if accrued interest on the drawn Deposits is payable on the
date of the Replacement Drawing (the "Replacement Drawing Date") or, otherwise,
the succeeding Interest Payment Date the excess, if any, of (x) the aggregate
amount of interest accrued on the Deposits in accordance with each Deposit
Agreement during the Relevant Period for, and required to be paid on the
Replacement Drawing Date or such Interest Payment Date over (y) the sum of the
Notional Earnings on the amount of each Notional Amount outstanding on the
Replacement Drawing Date (prior to giving effect to the Replacement Drawing
effected on such date) during such Relevant Period; and

             (b) the Replacement Drawing Date, subject to the last sentence of
Section 11 hereof, any breakage costs described in Section 10 hereof.

       1.06  Prepayment Drawing. In the event of a Prepayment Drawing is respect
of any Deposit, ATA shall pay to the Depositary no later than 11:00 a.m. (New
York City time) on the date of such drawing:

                                        3
<PAGE>

             (a) the excess, if any, of (x) the aggregate amount of interest
accrued on such Deposit in accordance with each Deposit Agreement during the
Relevant Period for, and required to be paid on the such date over (y) the sum
of the Notional Earnings on the amount of each Notional Amount outstanding in
respect of such Deposit accrued through such date (prior to giving effect to the
Prepayment Drawing effected on such date) during such Relevant Period; and

             (b) subject to the last sentence of Section 11 hereof, any breakage
costs described in Section 10 hereof.

       SECTION 2. Cash Collateral. Concurrently with the execution and delivery
hereof, ATA shall deposit into the Collateral Account (as defined herein) an
amount equal to the Specified Amount. The Specified Amount deposited into the
Collateral Amount pursuant to this Section shall satisfy ATA's obligations to
deposit the "Specified Amount" under the Delayed Indemnity Agreement.

       SECTION 3. Collateral Account and Investments.

       3.01 Collateral Account. There is hereby established with IntesaBci a
collateral account (the "Collateral Account") in the name and under the control
of IntesaBci into which ATA shall deposit cash from time to time in accordance
with the provisions of Section 2 hereof. The balance from time to time in the
Collateral Account shall be subject to withdrawal only as provided herein.

       3.02 Investment of Balance in Collateral Account. Amounts on deposit in
the Collateral Account shall be invested from time to time in Permitted
Investments. Such Permitted Investments shall be held in the name and be under
the control of IntesaBci. All Investment Earnings in respect of investments of
amounts in the Collateral Account shall be credited to the Collateral Account
and constitute a portion of the Pledged Security. IntesaBci agrees that the
Permitted Investments shall earn interest from time to time at the LIBID Rate.

       3.03 Pledge. As collateral security for the prompt payment in full when
due of ATA's obligations under this Agreement and the Delayed Indemnity
Agreement (the "Secured Obligations"), ATA hereby pledges and grants to
IntesaBci a security interest in all of ATA's right, title and interest in and
to the Collateral Account, the Specified Amount, all Permitted Investments made
with amounts standing to the credit of the Collateral Account, all Investment
Earnings thereon and all other monies, earnings and investments standing to the
credit thereof (collectively, the "Pledge Security"). If at any time ATA shall
fail to pay any Secured Obligation when due, IntesaBci may (in its sole
discretion) (i) liquidate any investments made in respect of amounts deposited
in the Collateral Account and (ii) apply or cause to be applied the balance from
time to time outstanding to the credit of the Collateral Account to the payment
of such Secured Obligation.

       3.04 Application and Termination. (a) On each Indemnity Payment Date, an
amount in the Collateral Account equal to the Indemnity Payment payable on such
date shall be applied to ATA's obligations, if any, to make such Indemnity
Payment on such Indemnity Payment Date.

                                       4
<PAGE>

             (b) Upon the later of (i) the later of (x) the date on which all of
the Deposits shall have been withdrawn and paid (or shall be required to be
withdrawn and paid) as provided in the Deposit Agreements without any redeposit
and (y) the date on which all accrued and unpaid interest on the Deposits shall
have been paid (or shall have become due and payable) as provided in the Deposit
Agreements (the later of clauses (x) and (y) being referred to as the "Deposit
Agreement Termination Date") and (ii) the payment in full of all Secured
Obligations in respect of obligations owing under this Agreement due and payable
on or prior to the Deposit Agreement Termination Date (the "Termination Date"),
the Pledge Security shall serve as collateral security exclusively for the
"Secured Obligations" owing under the Delayed Deposit Agreement.

       3.05 No Duplication. The obligations of ATA under Section 3.01 hereof and
the obligations of IntesaBci under Section 3.02 shall be without duplication of
their respective commensurate obligations under the Delayed Indemnity Agreement.

       SECTION 4. Representations and Warranties. (a) ATA represents and
warrants to IntesaBci that:

             (i)    ATA is duly incorporated, validly existing and in good
       standing under the laws of the State of Indiana and has the full
       corporate power, authority and legal right under the laws of the State of
       Indiana to execute and deliver this Agreement and to carry out the
       obligations of ATA under this Agreement;

             (ii)   the execution and delivery by ATA of this Agreement and the
       performance by ATA of its obligations under this Agreement have been duly
       authorized by ATA and will not violate its Articles of Incorporation or
       by-laws, any law, rule or regulation binding on ATA or the provisions of
       any indenture, mortgage, contract or other agreement to which it is a
       party or by which it is bound; and

             (iii)  this Agreement constitutes the legal, valid and binding
       obligation of ATA, enforceable against it in accordance with its terms,
       except as the same may be limited by applicable bankruptcy, insolvency,
       reorganization, moratorium or similar laws affecting the rights of
       creditors generally and by general principles of equity, whether
       considered in a proceeding at law or in equity.

             (b)    Amtran represents and warrants to IntesaBci that:

             (i)    Amtran is duly incorporated, validly existing and in good
       standing under the laws of the State of Indiana and has the full
       corporate power, authority and legal right under the laws of the State of
       Indiana to execute and deliver this Agreement and to carry out the
       obligations of Amtran under this Agreement;

             (ii)   the execution and delivery by Amtran of this Agreement and
       the performance by Amtran of its obligations under this Agreement have
       been duly authorized by Amtran and will not violate its Articles of
       Incorporation or by-laws, any law, rule or regulation binding on Amtran
       or the provisions of any indenture, mortgage, contract or other agreement
       to which it is a party or by which it is bound;

                                       5
<PAGE>

             (iii)  this Agreement constitutes the legal, valid and binding
       obligation of Amtran, enforceable against it in accordance with its
       terms, except as the same may be limited by applicable bankruptcy,
       insolvency, reorganization, moratorium or similar laws affecting the
       rights of creditors generally and by general principles of equity,
       whether considered in a proceeding at law or in equity;

             (iv)   except as set forth in Amtran's most recent Annual Report on
       Form 10-K as amended, filed by Amtran with the SEC on or prior to the
       date hereof, or in any Quarterly Report on Form 10-Q or Current Report on
       Form 8-K filed by Amtran with the SEC subsequent to such Form 10-K and on
       or prior to the date hereof, no action, claim or proceeding is now
       pending or, to the Actual Knowledge of Amtran, threatened, against
       Amtran, before any court, governmental body, arbitration board, tribunal
       or administrative agency, which is reasonably likely to be determined
       adversely to Amtran and if determined adversely to Amtran would result in
       a Material Adverse Change; and

             (v)    the audited consolidated balance sheet of Amtran with
       respect to Amtran's most recent fiscal year included in Amtran's most
       recent Annual Report on Form 10-K, as amended, filed by Amtran with the
       SEC, and the related consolidated statements of operations and cash flows
       for the period then ended have been prepared in accordance with GAAP and
       fairly present in all material respects the financial condition of Amtran
       and its consolidated subsidiaries as of such date and the results of its
       operations and cash flows for such period, and since the date of such
       balance sheet there has been no material adverse change in such financial
       condition or operations of Amtran, except for matters disclosed in (a)
       the financial statements or Annual Report on Form 10-K referred to above
       or (b) any subsequent Quarterly Report on Form 10-Q or Current Report on
       Form 8-K filed by Amtran with the SEC on or prior to the date hereof.

       SECTION 5. Payments, No Setoff. All amounts (including, without
limitation, those payments made in respect of Taxes (as defined and provided for
below)) payable by ATA to IntesaBci hereunder shall be paid in U.S. Dollars in
immediately available funds, to the account of IntesaBci at: IntesaBci S.p.A.,
New York Branch, One Williams Street, ABA#026005319, Account No. _________,
Reference: ATA Pass Through Trust 2002-l Deposit Indemnity or as IntesaBci may
direct from time to time in writing to ATA. All amounts payable hereunder shall
be made free and clear of, and without reduction for, or on account of, any and
all taxes, levies or other impositions or charges ("Taxes"), other than taxes
based on or measured by gross or net income, gross or net receipts, net worth,
capital, franchise taxes or similar doing business taxes.

       SECTION 6. Fees. In consideration of the Depositary entering into this
Agreement and the Deposit Agreement, ATA agrees to pay IntesaBci a nonrefundable
fee equal to $50,000 on the date hereof.

       SECTION 7. Increased Costs. In the event that any change in law or
governmental rule, regulation or order, or in the interpretation, administration
or application thereof (including the adoption of any new law or governmental
rule, regulation or order), or any determination of a court or by any central
bank or Government Entity, in each case that becomes effective after the date
hereof, or compliance by IntesaBci (at its applicable lending office) with any
guideline,

                                       6
<PAGE>

request or directive issued or made after the date hereof by any such central
bank or Government Entity (whether or not having the force of law):

             (i) subjects IntesaBci (or its applicable lending office) to any
       additional Tax (other than taxes excluded under Section 5 above) with
       respect to its obligations, commitments or extensions of credit
       hereunder, or under any of the Deposit Agreements or any payments to
       IntesaBci (or its applicable lending office) of any Indemnity Payment,
       interest, fees or any other amount payable under or in respect to this
       Agreement or any of the Deposit Agreements; or

             (ii) imposes, modifies or holds applicable any reserve (including
       any marginal, emergency, supplemental, special or other reserve), special
       deposit, compulsory loan, FDIC insurance or similar requirement against
       assets held by, or deposits in or for the account of, or advances or
       loans by, or other credit extended by, IntesaBci;

and the result of any of the foregoing is that IntesaBci shall incur increased
costs which are attributable to this Agreement or the Deposit Agreements or to
reduce any amount received or receivable by IntesaBci (or its applicable lending
office) with respect to this Agreement; then, in any such case, ATA shall pay to
IntesaBci, within five Business Days after receipt of the statement referred to
in the next sentence, such additional amount or amounts as may be necessary to
compensate IntesaBci for any such increased cost or reduction in amounts
received or receivable hereunder. IntesaBci, promptly after the occurrence of
such event, shall deliver to ATA a written statement, setting forth in
reasonable detail the basis for calculating the additional amounts owed to
IntesaBci under this Section 7, which statement shall be prima facie evidence of
ATA's obligation to pay such additional amounts.

       SECTION 8. Capital Adequacy. If the adoption after the date hereof of any
applicable law, rule or regulation (or any provision thereof) regarding capital
adequacy, or any change after the date hereof in any existing interpretation or
administration thereof by any governmental authority, central bank or comparable
agency charged with the interpretation or administration thereof, or the
promulgation after the date hereof of any guidelines, request or directive
regarding capital adequacy (whether or not having the force of law) of any such
governmental authority, central bank or comparable agency, has or would have the
effect of reducing the rate of return on the capital of IntesaBci or any
corporation controlling IntesaBci as a consequence of IntesaBci's commitments,
obligations or extensions of credit hereunder or under the Deposit Agreements to
a level below that which IntesaBci or such controlling corporation could have
achieved but for such adoption, change or promulgation (taking into
consideration the policies of IntesaBci or such controlling corporation with
regard to capital adequacy), then from time to time, within five Business Days
after receipt by ATA from IntesaBci of the statement referred to in the next
sentence, ATA shall pay to IntesaBci such additional amount or amounts as will
compensate IntesaBci or such controlling corporation on an after-tax basis for
such reduction. IntesaBci shall deliver to ATA a written statement, setting
forth in reasonable detail the basis of the calculation of such additional
amounts, which statement shall be prima facie evidence of ATA's obligation to
pay such additional amounts.

                                       7
<PAGE>

       SECTION 9. Guarantee. (a) (a) The Guarantor hereby guarantees to the
Depositary the prompt payment in full when due of all amounts payable by ATA
hereunder strictly in accordance with the terms hereof (such obligations being
herein collectively called the "Obligations"). This is a guarantee of payment,
not of collection. Accordingly, the Guarantor hereby further agrees that if ATA
shall fail to pay in full when due (whether at stated maturity, by acceleration
or otherwise) any of the Obligations, the Guarantor will promptly pay the same,
without any demand or notice whatsoever, and that in the case of any extension
of time of payment or renewal of any of the Obligations, the same will be
promptly paid in full when due (whether at extended maturity, by acceleration or
otherwise) in accordance with the terms of such extension or renewal.

             (b) The obligations of the Guarantor under Section 9(a) are
irrevocable, absolute and unconditional irrespective of the value, genuineness,
validity, regularity or enforceability of the obligations of ATA under this
Agreement or any other agreement or instrument referred to herein or therein, or
any substitution, release or exchange of any other guarantee of or security for
any of the Obligations, and, to the fullest extent permitted by applicable law,
irrespective of any other circumstance whatsoever that might otherwise
constitute a legal or equitable discharge or defense of a surety or guarantor,
it being the intent of this Section 9(b) that the obligations of the Guarantor
hereunder shall be irrevocable, absolute and unconditional under any and all
circumstances. Without limiting the generality of the foregoing, it is agreed
that the occurrence of any one or more of the following shall not alter or
impair the liability of the Guarantor hereunder, which shall remain irrevocable,
absolute and unconditional as described above:

             (i)    at any time or from time to time, without notice to the
       Guarantor, the time for any performance of or compliance with any of the
       Obligations shall be extended, or such performance or compliance shall be
       waived, or such Obligations shall be increased;

             (ii)   any of the acts mentioned in any of the provisions of this
       Agreement or any other agreement or instrument referred to herein or
       therein shall be done or omitted;

             (iii)  the maturity of any of the Obligations shall be accelerated,
       or any of the Obligations shall be modified, supplemented or amended in
       any respect, or any right under this Agreement or any other agreement or
       instrument referred to herein or therein shall be waived or any other
       guarantee of any of the Obligations or any security therefor shall be
       released or exchanged in whole or in part or otherwise dealt with;

             (iv)   the dissolution, merger, consolidation, sale of all or
       substantially all of the assets or other corporate reorganization of ATA;
       or

             (v)    any lien or security interest granted to, or in favor of,
       the Depositary as security for any of the Obligations shall be released
       or fail to be perfected.

             (c) The Guarantor hereby expressly waives diligence, presentment,
demand of payment, notice of acceptance hereof, notice of the incurrence of any
Obligation, protest and all notices whatsoever, and any requirement that the
Depositary pursue or exhaust any right, power or remedy or otherwise proceed
against ATA under this Agreement or any other agreement or

                                       8
<PAGE>

instrument referred to herein or therein, or against any other Person under any
other guarantee of, or security for, any of the Obligations.

             (d) The obligations of the Guarantor under this Section 9 shall be
automatically reinstated if and to the extent that for any reason any payment by
or on behalf of ATA in respect of the Obligations is rescinded or must be
otherwise restored by any holder of any of the Obligations, whether as a result
of any proceedings in bankruptcy or reorganization or otherwise and the
Guarantor agrees that it will indemnify the Depositary on demand for all
reasonable costs and expenses (including, without limitation, fees of counsel)
incurred by the Depositary prior to payment in full of their respective claims
by the Guarantor in connection with such rescission or restoration, including
any such costs and expenses incurred in defending against any claim alleging
that such payment constituted a preference, fraudulent transfer or similar
payment under any applicable law.

             (e) ATA hereby acknowledges and confirms that it has an unqualified
obligation to reimburse the Guarantor for the full amount of the Obligations
hereby guaranteed by the Guarantor and paid or otherwise satisfied by the
Guarantor. The Guarantor hereby agrees that until the payment and satisfaction
in full of all Obligations, the Depositary shall be entitled to prove against
the estate of ATA in connection with any bankruptcy, insolvency, reorganization,
rearrangement or winding up proceedings in respect of the whole of the
Obligations (including any amount on account thereof theretofore paid by the
Guarantor pursuant to the aforesaid guarantee), and the Guarantor shall have no
right to be subrogated to Depositary in respect of such proof until the
Depositary shall have received from such estate payment in full of their
respective claims with interest; nor shall the Guarantor purport to exercise any
right or remedy arising by reason of any performance by it of its obligation in
8(a) whether by subrogation or otherwise, against ATA or any other guarantor of
any of the Obligations or any security for any of the Obligations until the
Depositary shall have received payment in full of their respective claims with
interest.

             (f) The Guarantor agrees that, as between it and the Depositary,
its obligations under this Section 9 may be declared to be forthwith due and
payable as provided in Section 2 for purposes of Section 9(a) notwithstanding
any stay, injunction or other prohibition preventing such declaration (or such
obligations from becoming automatically due and payable) as against ATA and
that, in the event of such declaration (or such obligations being deemed to have
become automatically due and payable), such obligations (whether or not due and
payable by the Borrower) shall forthwith become due and payable by the Guarantor
for purposes of Section 9(a).

             (g) The obligations in this Section 9 are continuing, and shall
apply to all Obligations whenever arising.

       SECTION 10. Breakage. If (x) any Notional Amount is reduced or increased
other than during a Floating Index Period therefor or on the last day of the
Index Period therefor (including by virtue of a Replacement Drawing or a
Prepayment Drawing), (y) any withdrawal is cancelled with respect to which a
notice has been delivered to the Depositary pursuant to Section 2.3(a) of any
Deposit Agreement less than one Business Day prior to the scheduled date of such
withdrawal (unless the Index Rate for such date is the Federal Funds Index Rate)
or (z) any

                                       9
<PAGE>

investment of amounts in the Collateral Account is liquidated prior to the
maturity date therefor (each, a "Breakage Event"), then ATA shall compensate
IntesaBci for any loss, cost or expense (including, without limitation, any cost
of funding or loss incurred as a result of terminating, liquidating, obtaining
or re-establishing any hedge or related trading position) incurred by IntesaBci
in connection with such Breakage Event. A certificate of IntesaBci setting forth
in reasonable detail any amount or amounts that IntesaBci is entitled to receive
pursuant to this Section 10 shall be delivered to ATA and shall be prima facie
evidence of ATA's obligation to pay such amount or amounts. ATA shall pay
IntesaBci the amount shown as due on any such certificate within five Business
Days after receipt thereof.

       SECTION 11. Expenses; Indemnity. (a) ATA shall pay all reasonable
out-of-pocket expenses incurred by IntesaBci, including the reasonable fees,
charges and disbursements of special New York and Italian counsel for IntesaBci,
in connection with the preparation of this Agreement, the Deposit Agreements or
any amendments, modifications or waivers of the provisions hereof or thereof.

             (b) The provisions of Section 9.1 of the Leased Aircraft
       Participation Agreement attached as Exhibit A-l to the Note Purchase
       Agreement, together with related definitions and ancillary provisions,
       are hereby incorporated herein by reference, as if set forth herein in
       full, mutatis mutandis; provided that as incorporated herein, (i) each
       reference therein to "this Agreement" shall be deemed to be a reference
       to this Agreement, (ii) each reference therein to "Indemnitee" shall be
       deemed to be a reference to IntesaBci (in its capacity as Depositary)
       together with its affiliates, directors, officers, employees, agents,
       successors and assigns, (iii) each reference therein to "Lessee" shall be
       deemed to be reference to ATA, (iv) each reference therein to "Section
       9.1", or any subsection of "Section 9.1", shall be deemed to be a
       reference to this Section 11(b) or applicable subsection, (v) each
       reference therein to "Operative Agreements" shall be deemed to be a
       reference to the "Operative Agreements" under each of the Participation
       Agreements, (vi) each reference therein to "Aircraft" shall be deemed to
       be a reference to the "Aircraft" under each of the Participation
       Agreements and (vii) the term "Pass Through Agreements" shall be deemed
       to include this Agreement.

             (c) All amounts due under this Section 11 shall be paid no later
       than five Business Days after written demand therefor.

       SECTION 12. Remedies. Upon the breach by ATA of any of its obligations
under this Agreement, IntesaBci may exercise any right or remedy that may be
available to it under applicable law. ATA agrees to indemnify and hold harmless
IntesaBci for any reasonable cost or expense incurred by it in connection with,
or arising out of, the enforcement by IntesaBci of this Agreement against ATA.

       SECTION 13. Amendment, Etc. This Agreement may not be amended, waived or
otherwise modified except by an instrument in writing signed by the party
against whom the amendment, waiver or other modification is sought to be
enforced.

       SECTION 14. Notices. Unless otherwise expressly provided herein, any
notice or other communication under this Agreement shall be in writing
(including by facsimile) and shall be

                                       10
<PAGE>

deemed to be given and effective upon receipt thereof. All notices shall be sent
to (x) in the case of IntesaBci, IntesaBci S.p.A. , New York Branch, One
Williams Street, New York, New York 10004, Attention: Transportation Finance
Group (Telecopier: (212) 607-3966), (y) in the case of ATA, American Trans Air,
Inc., 7337 West Washington Street, Indianapolis, IN 46321-0609, Attention:
Kenneth K. Wolff (Telecopier: (317)240-7091) or (z) in the case of Amtran,
Amtran, Inc., 7337 West Washington Street, Indianapolis, IN 46321-0609 ,
Attention: Kenneth K. Wolff (Telecopier: (317)240-7091) (or at such other
address as a party may specify from time to time in a written notice to the
other parties). On or prior to the execution of this Agreement, ATA has
delivered to IntesaBci a certificate containing specimen signatures of the
representatives of ATA who are authorized to give notices and instructions with
respect to this Agreement. IntesaBci may conclusively rely on such certificate
until IntesaBci receives written notice from ATA to the contrary.

       SECTION 15. Entire Agreement. This Agreement (including all attachments
hereto) sets forth all of the promises, covenants, agreements, conditions and
understandings between IntesaBci and ATA with respect to the subject matter
hereof and supersedes all prior and contemporaneous agreements and undertakings,
inducements and conditions, express or implied, oral or written.

       SECTION 16. Governing Law. THIS AGREEMENT, AND THE RIGHTS AND OBLIGATIONS
OF INTESABCI AND ATA HEREUNDER SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE
WITH, THE LAWS OF THE STATE OF NEW YORK.

       SECTION 17. Waiver Of Jury Trial Right. EACH OF INTESABCI AND ATA
ACKNOWLEDGES AND ACCEPTS THAT IN ANY SUIT, ACTION OR PROCEEDING ARISING OUT OF
OR RELATING TO THIS AGREEMENT SUCH PARTY IRREVOCABLY WAIVES ITS RIGHT TO A TRIAL
BY JURY.

       SECTION 18. Counterparts. This Agreement may be executed in one or more
counterparts, all of which taken together shall constitute one instrument.

       SECTION 19. No Third-Party Beneficiaries. This Agreement is not intended
to, and shall not, provide any person not a party hereto with any rights of any
nature whatsoever against any of the parties hereto and no person not a party
hereto shall have any right, power or privilege in respect of any party hereto,
or have any benefit or interest, arising out of this Agreement.

                                       11

<PAGE>

         IN WITNESS WHEREOF, IntesaBci, Amtran and ATA have caused this
Indemnity Agreement to be duly executed as of the day and year first above
written.

                                               INTESABCI S.P.A., NEW YORK BRANCH
                                               as Depositary

                                               By:
                                                   -----------------------------
                                                   Name:
                                                   Title:

                                               By:
                                                   -----------------------------
                                                   Name:
                                                   Title:

                                               AMERICAN TRANS AIR, INC.

                                               By:
                                                   -----------------------------
                                                   Name:
                                                   Title:

                                               AMTRAN, INC.

                                               By:
                                                   -----------------------------
                                                    Name:
                                                    Title:

                                       12
<PAGE>

                                                                      SCHEDULE I

<TABLE>
<CAPTION>
------------------------------------------------------------------------------
                        Expected           Manufacturer's          Aircraft
Aircraft Type      Registration Number      Serial Number       Delivery Month
-------------      -------------------      -------------       --------------
<S>                <C>                     <C>                  <C>
------------------------------------------------------------------------------
  737-800
------------------------------------------------------------------------------
  737-800
------------------------------------------------------------------------------
  737-800
------------------------------------------------------------------------------
  737-800
------------------------------------------------------------------------------

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

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

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

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

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

------------------------------------------------------------------------------
</TABLE>

<PAGE>

                                                                     SCHEDULE II

<TABLE>
<CAPTION>
-----------------------------------------------------------------------------

    Notional Amount      Initial Index Period        Initial Index Rate
    ---------------      --------------------        ------------------
   <S>                  <C>                         <C>
-----------------------------------------------------------------------------

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

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

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

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

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

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

-----------------------------------------------------------------------------
</TABLE>

<PAGE>

                                                                         ANNEX A

                                  DEFINITIONS

       "Actual Knowledge" means as it applies to ATA, actual knowledge of a Vice
President or more senior officer of ATA having responsibility for the
transactions contemplated by the Indemnity Agreement; provided that ATA shall be
deemed to have "Actual Knowledge" of any matter as to which it has received
notice from IntesaBci, such notice having been given pursuant to Section 14.

       "Aircraft" means each of the aircraft listed on Schedule I hereto.

       "Base Rate" means a fluctuating interest rate per annum in effect from
time to time, which rate per annum shall at all times be equal to the higher of
(i) (a) the Federal Funds Effective Rate, plus (b) one-half of one percent (1/2
of 1%) (calculated on the basis of a 360 day year) and (ii) the floating
commercial loan rate per annum of IntesaBci (which rate is a reference rate and
does not necessarily represent the lowest or best rate actually charged to any
customer by IntesaBci) announced from time to time as its prime rate or
equivalent for dollar loans in the USA, changing as and when said rate changes
(calculated on the basis of a 365/366 day year).

       "Breakage Event" shall have the meaning set forth in Section 10.

       "Business Day" means any day, other than a Saturday or a Sunday, on which
(x) commercial banks settle payments in New York and, (y) for the purpose of
determining any Index Period, U.S. Dollar transactions are affected in London,
England.

       "Collateral Account" shall have the meaning set forth in Section 3.01.

       "Delayed Indemnity Agreement" means the Delayed Indemnity Agreement dated
as of the date hereof among the parties hereto.

       "Deposit Agreement Termination Date" shall have the meaning set forth in
Section 3.04(b).

       "Equipment Notes" has the meaning attributable thereto in the Note
Purchase Agreement.

       "Federal Funds Effective Rate" means, for any day, the weighted average
(rounded upwards, if necessary, to the next l/100 of 1%) of the rates on
overnight Federal funds transactions with members of the Federal Reserve System
arranged by Federal funds brokers, as published on the next succeeding Business
Day by the Federal Reserve Bank of New York, or, if such rate is not published
for any day that is a Business Day, the average (rounded upwards, if necessary,
to the next l/100 of 1%) of the quotations for such day for such transactions
received by IntesaBci from three Federal funds brokers of recognized standing
selected by IntesaBci.

       "Federal Funds Index Rate" shall mean, for any day of determination, the
Federal Funds Effective Rate for such day minus 1/8% per annum.

<PAGE>

       "Final Withdrawal Date" means the date on which all of the Deposits are
withdrawn and no redeposits are made under the Deposit Agreement.

       "Floating Index Period" means, with respect to any Notional Amount, the
period from and including the last day of the Initial Index Period therefor to
but excluding the earlier of (x) the date such Notional Amount is withdrawn
pursuant to the Deposit Agreements and (y) the first day of any Subsequent Index
Period therefor.

       "Government Entity" means (a) any federal, state, provincial or similar
government, and any body, board, department, commission, court, tribunal,
authority, agency or other instrumentality of any such government or otherwise
exercising any executive, legislative, judicial, administrative or regulatory
functions of such government or (b) any other government entity having
jurisdiction over any matter contemplated by this Agreement or relating to the
observance or performance of the obligations of any of the parties to this
Agreement.

       "Indemnity Payment" shall have the meaning set forth in Section 1.01.

       "Indemnity Payment Date" shall have the meaning set forth in Section
1.01.

       "Index Period" means, with respect to any Notional Amount, the Initial
Index Period, the Floating Index Period and each Subsequent Index Period
therefor.

       "Index Rate" means, with respect to any Notional Amount, (i) during the
Initial Index Period therefor, the rate per annum set forth opposite such
Notional Amount under the heading "Initial Index Rate" on Schedule II during the
Floating Index Period therefor, a rate per annum equal to the Federal Funds
Index Rate, and (ii) during each Subsequent Index Period therefor, the rate per
annum for such Subsequent Index Period determined in accordance with Section
1.04 hereof.

       "Initial Index Period" means, with respect to each Notional Amount, the
period set forth opposite such Notional Amount under the heading "Initial Index
Period" on Schedule II hereto; provided that if the last day of such period is
stated to fall on a day that is not a Business Day, the last day of such period
shall be extended to fall on the next subsequent day that is a Business Day.

       "Interest Payment Date" shall have the meaning given such term in the
Deposit Agreements.

       "Investment Earnings" on any amount, means investment earnings on such
amount net of losses and investment expenses reasonably incurred by IntesaBci in
making or liquidating such investments.

       "Law" means (a) any constitution, treaty, statute, law, decree,
regulation, order, rule or directive of any Government Entity and (b) any
judicial or administrative interpretation or application of, or decision under,
any of the foregoing.

       "Leased Aircraft Participation Agreement" shall have the meaning set
forth in the Note Purchase Agreement.

                                        2

<PAGE>

       "LIBID Rate" means, for any period between Interest Payment Dates (or, in
the case of the first such period, commencing on the date of this Agreement), a
rate per annum (calculated on the basis of a 360-day year and actual days
elapsed) equal to (x) the rate determined by reference to Telerate Page 3750 as
of 11:00 A.M. (London time), on the date two London business days prior to the
first day of such period (or, in the case of the first such period, the rate
determined by IntesaBci as the London interbank offered rate available to it in
respect of such period) minus (y) 12.5 basis points.

       "Material Adverse Change" means, with respect to any Person, any event,
condition or circumstance that materially and adversely affects such person's
business or consolidated financial condition, or its ability to observe or
perform its obligations, liabilities and agreements under this Agreement.

       "Note Purchase Agreement" means the Note Purchase Agreement dated as of
the date hereof among ATA, Wilmington Trust Company, as Pass Through Trustee
under each of the Pass Through Trust Agreements referred to therein, Wilmington
Trust Company, as Subordination Agent, Wells Fargo Bank Northwest, N.A., as
Escrow Agent, and Wilmington Trust Company, as Paying Agent.

       "Notice of Final Withdrawal" shall have the meaning set forth in the
Deposit Agreements.

       "Notice of Purchase Withdrawal" shall have the meaning set forth in the
Deposit Agreements.

       "Notional Amounts" means each of the amounts set forth under the heading
"Notional Amounts" on Schedule II hereto as the same may be reduced from time to
time in accordance with Section 1.03.

       "Notional Earnings" means, with respect to any Relevant Period and each
Notional Amount, the sum of the Index Rate per annum on such Notional Amount for
each day during such Relevant Period. The Notional Earnings shall be calculated
on the basis of a year of 360 days and actual days elapsed.

       "Participation Agreement" means each Participation Agreement entered into
in connection with the financing of each Aircraft (or a Substitute Aircraft in
respect thereof).

       "Permitted Investments" means London interbank U.S. Dollar deposits with
London banks (or London branches of banks, including IntesaBci's London branch)
selected by IntesaBci maturing on or about each Interest Payment Date.

       "Prepayment Drawing" means a withdrawal of one or more deposits pursuant
to a Prepayment Withdrawal.

       "Prepayment Drawing Date" means the date of the Prepayment Drawing.

       "Relevant Date" means (i) in the case of the first Interest Payment Date,
a Final Withdrawal Date, a Prepayment Drawing Date or a Replacement Drawing Date
occurring prior

                                        3

<PAGE>

to the first Interest Payment Date, the date of the Indemnity Agreement and (ii)
in the case of any other Interest Payment Date, Final Withdrawal Date,
Prepayment Drawing Date or Replacement Drawing Date, the Interest Payment Date
immediately preceding such Interest Payment Date, Final Withdrawal Date,
Prepayment Drawing Date or Replacement Drawing Date (as the case may be).

       "Relevant Period" means, with respect to any Interest Payment Date, Final
Withdrawal Date, Prepayment Drawing Date or Replacement Drawing Date, the period
from and including the Relevant Date for such Interest Payment Date, Final
Withdrawal Date, Prepayment Drawing Date or Replacement Drawing Date, as the
case may be, up to but excluding such Interest Payment Date, Final Withdrawal
Date, Prepayment Drawing Date or Replacement Drawing Date (as the case may be).

       "Replacement Drawing" means a withdrawal of the Deposits pursuant to a
Replacement Withdrawal.

       "Replacement Drawing Date" shall have the meaning set forth in Section
1.05(a).

       "SEC" means the Securities and Exchange Commission of the United States,
or any Government Entity succeeding to its functions.

       "Secured Obligations" shall have the meaning set forth in Section 3.03.

       "Specified Amount" shall have the meaning set forth in the third WHEREAS
clause.

       "Subsequent Index Period" with respect to each Notional Amount, shall
have the meaning set forth in Section 1.04.

       "Substitute Aircraft" means any aircraft substituted for an Aircraft (or
any other Aircraft with respect to such Aircraft) in accordance with (i) the
Aircraft Purchase Agreement (as defined in the Note Purchase Agreement) upon a
total loss of such Aircraft prior to the delivery thereof or (ii) Section 1(g)
of the Note Purchase Agreement.

                                        4

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00045-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00045-of-00352.parquet"}]]