Document:

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                                                                    Exhibit 4(e)

                           MBIA INSURANCE CORPORATION

                       FINANCIAL GUARANTY INSURANCE POLICY

                                December 9, 1999

                                                                Policy No. 30951

Re:                 Northwest Airlines 1999-3G (the "Class G Trust")
                    $150,203,000 7.935 % Pass Through Trust Certificates (the
                    "Class G Certificates")

Insured             Payment of interest at the Stated Interest Rate (without
Obligation:         premium) and principal on the Class G Certificates.

Beneficiary:        State Street Bank and Trust Company as subordination agent
                    (together with any successor the subordination agent duly
                    appointed and qualified under the Agreement (as defined
                    below) the "Subordination Agent")

      MBIA INSURANCE CORPORATION ("MBIA"), for consideration received, hereby
unconditionally and irrevocably guarantees to the Subordination Agent, subject
only to the terms of this Policy (the "Policy"), payment of the Insured
Obligation. MBIA agrees to pay to the Subordination Agent, in respect of each
Distribution Date, an amount equal to (each a "Deficiency Amount"):

      (i) with respect to any Regular Distribution Date other than the Final
Legal Distribution Date, any shortfall in amounts available to the Subordination
Agent, after giving effect to the subordination provisions of the Agreement and
to the application of any amounts available to the Escrow Agent in the Class G
Paying Agent Account in respect of accrued interest at the Stated Interest Rate
on the Class G Deposits, any drawing paid under the Class G Liquidity Facility
in respect of interest due on the Class G Certificates on such Distribution Date
and any withdrawal from the Class G Cash Collateral Account in respect of
interest due on the Class G Certificates on such Distribution Date in accordance
with the Agreement, for the payment of accrued and unpaid interest at the Stated
Interest Rate on the Pool Balance of the Class G Certificates on such
Distribution Date;

      (ii) with respect to any Special Distribution Date (other than an Election
Distribution Date) established by reason of receipt of a Special Payment
constituting the proceeds of any Series G Equipment Notes (as to which there has
been a default in the payment of principal thereof or that has been accelerated)
or the related Trust Indenture Estate or Collateral, as the case may be, after
giving effect to the subordination provisions of the Agreement and to the
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application of any amounts available to the Escrow Agent in the Class G Paying
Agent Account in respect of accrued interest on the Class G Deposits, any
drawing paid under the Class G Liquidity Facility in respect of interest due on
the Class G Certificates on such Distribution Date and any withdrawal from the
Class G Cash Collateral Account in respect of interest due on such Distribution
Date in accordance with the Agreement, the amount, if any, required to reduce
the Pool Balance of the Class G Certificates to the level equal to the Pool
Balance of the Class G Certificates outstanding immediately prior to the date of
such payment minus the outstanding principal amount of such Series G Equipment
Note (determined immediately prior to the receipt of such proceeds) plus accrued
and unpaid interest on the amount of such reduction at the Stated Interest Rate;

      (iii) with respect to the Special Distribution Date established by reason
of the failure of the Subordination Agent to have received a Special Payment
constituting the proceeds of any Series G Equipment Note or the related Trust
Indenture Estate or Collateral, as the case may be, eighteen (18) months after
the last date on which full payment was made on such Series G Equipment Note as
to which there has subsequently been a failure to pay principal or that has
subsequently been accelerated, provided the Subordination Agent has not received
a Special Payment constituting the proceeds of any Series G Equipment Note or
the related Trust Indenture Estate or Collateral, as the case may be, the amount
equal to the outstanding principal amount of such Series G Equipment Note plus
accrued and unpaid interest thereon at the Stated Interest Rate for the Class G
Certificates; provided, however, if MBIA shall have duly given a Policy Provider
Election (as defined below) at the end of such 18 month period, the Deficiency
Amount shall be an amount equal to (A) with respect to such Special Distribution
Date the scheduled principal and interest payable but not paid on such Series G
Equipment Note (without regard to the acceleration thereof) during such eighteen
(18) month period (after giving effect to the application of any drawing paid
under the Class G Liquidity Facility and any withdrawal from the Class G Cash
Collateral Account attributable to such interest on such Series G Equipment
Note) and (B) thereafter on each Regular Distribution Date following such
Special Distribution Date as to which any Policy Provider Election has been
given in respect of any Series G Equipment Note, and prior to the establishment
of an Election Distribution Date or a Special Distribution Date pursuant to the
immediately succeeding clause (iv) with respect to such Series G Equipment Note,
an amount equal to the scheduled principal (without regard to the acceleration
thereof) and interest payable on such Series G Equipment Note on the related
payment date;

      (iv) following the giving of any Policy Provider Election, with respect to
any Business Day elected by MBIA upon 20 days prior notice (which shall be a
Special Distribution Date) and upon request by MBIA to the Subordination Agent
to make a drawing under this Policy, an amount equal to the then outstanding
principal balance of the Series G Equipment Note as to which the Policy Provider
Election was given (less any drawings previously paid by MBIA in respect of
principal on such Equipment Note) and accrued interest thereon at the Stated
Interest Rate for the Class G Certificates from the immediately preceding
Regular Distribution Date to such Special Distribution Date;

      (v) with respect to any Special Distribution Date which is an Election
Distribution Date, an amount equal to the then outstanding principal balance of
the Series G Equipment Note as to which such Election Distribution Date relates
(less any drawing previously paid by MBIA

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in respect of principal of such Equipment Note) and accrued interest thereon at
the Stated Interest Rate for the Class G Certificates from the immediately
preceding Regular Distribution Date to such Election Distribution Date; and

      (vi) with respect to the Final Legal Distribution Date, any shortfall in
amounts available to the Subordination Agent after giving effect to the
subordination provisions of the Agreement and to the application of any amounts
available to the Escrow Agent in the Class G Paying Agent Account in respect of
accrued interest on the Class G Deposits, any drawing paid under the Class G
Liquidity Facility in respect of interest included in the Final Distribution and
any withdrawal from the Class G Cash Collateral Account in respect of interest
included in the Final Distribution in accordance with the Agreement, for the
payment in full of the Final Distribution (calculated as of such date but
excluding any accrued and unpaid premium) on the Class G Certificates.

      If any amount paid or required to be paid in respect of the Insured
Obligation is voided (a "Preference Event") under any applicable bankruptcy,
insolvency, receivership or similar law in an Insolvency Proceeding, and, as a
result of such a Preference Event, the Beneficiary or the Class G
Certificateholders are required to return such voided payment, or any portion of
such voided payment made or to be made in respect of the Class G Certificates
(an "Avoided Payment"), MBIA will pay an amount equal to each such Avoided
Payment, irrevocably, absolutely and unconditionally and without the assertion
of any defenses to payment, including fraud in inducement or fact or any other
circumstances that would have the effect of discharging a surety in law or in
equity, upon receipt by MBIA from the Beneficiary or Class G Certificateholders
of (x) a certified copy of a final order of a court exercising jurisdiction in
such Insolvency Proceeding to the effect that the Beneficiary or Class G
Certificateholders are required to return any such payment or portion thereof
prior to the Termination Date (as defined below) of this Policy because such
payment was voided under applicable law, with respect to which order the appeal
period has expired without an appeal having been filed (the "Final Order"), (y)
an assignment, in the form of Exhibit D hereto, irrevocably assigning to MBIA
all rights and claims of such Beneficiary or Class G Certificateholders relating
to or arising under such Avoided Payment and (z) a Notice of Avoided Payment in
the form of Exhibit B hereto appropriately completed and executed by the
Beneficiary or Class G Certificateholders. Such payment shall be disbursed to
the receiver, conservator, debtor-in-possession or trustee in bankruptcy named
in the Final Order and not to the Beneficiary or Class G Certificateholders
directly unless such Class G Certificateholder has returned principal and
interest paid on the Class G Certificates to such receiver, conservator,
debtor-in-possession or trustee in bankruptcy, in which case such payment shall
be disbursed to such Class G Certificateholder.

      Notwithstanding the foregoing, in no event shall MBIA be obligated to make
any payment in respect of any Avoided Payment, which payment represents a
payment of the principal amount of the Class G Certificates, prior to the time
MBIA would have been required to make a payment in respect of such principal
pursuant to sub-paragraphs (ii-vi) of this Policy, provided, further, that no
payment of principal under this Policy on any Distribution Date, other than with
respect to an Avoided Payment, shall exceed the Net Principal Policy Amount (as
defined below) for such Distribution Date. This Policy does not cover (i) any
premium prepayment penalty or other accelerated payment, which at any time may
become due on or with respect to any Class G Certificate, (ii) shortfalls, if
any, attributable to the liability of the

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Subordination Agent, the Class G Trust or the Class G Trustee for withholding
taxes, if any (including interest and penalties in respect of any such
liability) or (iii) any failure of the Escrow Agent, the Subordination Agent or
the Class G Trustee to make any payment due to the Class G Certificateholders
from funds received.

      Capitalized terms used herein and not otherwise defined herein shall have
the meanings assigned to them in the Intercreditor Agreement (the "Agreement")
dated as of December 9, 1999, by and among MBIA, as Policy Provider, Morgan
Stanley Capital Services, Inc., as Liquidity Provider, the Class G Trustee, the
Class B Trustee, the Class C Trustee and the Subordination Agent, without regard
to any amendment or supplement thereto unless such amendment or supplement has
been executed, or otherwise approved in writing, by MBIA.

      "Business Day" shall mean any day other than a Saturday, a Sunday or other
day on which insurance companies in New York, New York or commercial banking
institutions in the cities in which the corporate trust office of the
Subordination Agent, the Fiscal Agent (as defined herein) or the office of MBIA
specified in this Policy are located are authorized or obligated by law or
executive order to close.

      "Class G Certificateholders" shall mean any person who is the registered
owner or beneficial owner of any of the Class G Certificates and who, on the
applicable Distribution Date, is entitled under the terms of the Class G
Certificates to payment thereunder.

      "Election Distribution Date" shall mean any Special Distribution Date
established by the Subordination Agent upon 20 days notice to the Class G
Certificateholders by reason of (i) the occurrence and continuation of a Policy
Provider Default occurring after a Policy Provider Election or (ii) the receipt
of a Special Payment constituting the proceeds of a Series G Equipment Note as
to which a Policy Provider Election has been given or of the related Trust
Indenture Estate or Collateral.

      "Final Legal Distribution Date" shall mean October 1, 2020.

      "Insolvency Proceeding" means the commencement, after the date hereof, of
any bankruptcy, insolvency, readjustment of debt, reorganization, marshalling of
assets and liabilities or similar proceedings by or against Northwest Airlines,
Inc. or any Owner Trustee and the commencement, after the date hereof, of any
proceedings by Northwest Airlines, Inc., any Liquidity Provider, or any Owner
Trustee for the winding up or liquidation of its affairs or the consent, after
the date hereof, to the appointment of a trustee, conservator, receiver, or
liquidator in any bankruptcy, insolvency, readjustment of debt, reorganization,
marshalling of assets and liabilities or similar proceedings of or relating to
Northwest Airlines, Inc., any Liquidity Provider, or any Owner Trustee.

      "Insurance Agreement" shall mean the Insurance and Indemnity Agreement (as
may be amended, modified or supplemented from time to time), dated as of
December 9, 1999, by and among MBIA, Northwest Airlines, Inc., the Class G
Trustee and the Subordination Agent.

      "Insured Amounts" shall mean, with respect to any Distribution Date, the
Deficiency Amount for such Distribution Date.

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      "Net Principal Policy Amount" shall mean the Pool Balance of the Class G
Certificates as of the Closing Date minus all amounts previously drawn on the
Policy with respect to principal.

      "Nonpayment" shall mean, with respect to any Distribution Date, a
Deficiency Amount owing to the Subordination Agent for distribution to the Class
G Certificateholders in respect of such Distribution Date.

      "Notice of Avoided Payment" shall mean the notice, substantially in the
form of Exhibit B hereto, delivered pursuant to the Policy and sent to the
contact person at the address and/or fax number set forth in the Policy, and
specifying the Preference Amount which shall be due and owing on the applicable
Distribution Date.

      "Notice of Nonpayment" shall mean the notice, substantially in the form of
Exhibit A hereto, delivered pursuant to this Policy and sent to the contact
person at the address and/or fax numbers set forth in the Policy specifying the
Insured Amount which shall be due and owing to the Class G Trustee for
distribution to the Class G Certificateholders on the applicable Distribution
Date.

      "Policy Provider Election" shall mean a notice given by MBIA when no
Policy Provider Default shall have occurred and be continuing, stating that MBIA
elects to make payments of Deficiency Amounts as defined under the proviso to
clause (iii) of the definition of Deficiency Amounts in respect of any Series G
Equipment Note in lieu of applying clause (iii) (without the proviso) of the
definition of Deficiency Amount, which notice shall be given to the
Subordination Agent not less than five (5) days prior to the Special
Distribution Date established for payment of a Deficiency Amount under clause
(iii) of the definition thereof.

      "Preference Amount" means any payment of principal or interest at the
Stated Interest Rate of the Class G Certificates on the Series G Equipment Notes
made to the Class G Trustee or the Subordination Agent or (without duplication)
any payment of the Pool Balance of or interest at the Stated Interest Rate on
the Class G Certificates or any payment of the proceeds of any drawing under the
Class G Liquidity Facility made to a Class G Certificateholder which has become
recoverable or been recovered from the Class G Trustee, the Subordination Agent
or the Class G Certificateholders (as the case may be) as a result of such
payment being determined or deemed a preferential transfer pursuant to the
United States Bankruptcy Code or otherwise rescinded or required to be returned
in accordance with a Final Order.

      "Trust Agreement" shall mean the Pass Through Trust Agreement, dated as of
June 3, 1999 among NWA Corp, Northwest Airlines, Inc. and State Street Bank and
Trust Company of Connecticut, National Association, as Trustee, as supplemented
by Trust Supplement No. 1999-3G dated as of December 9, 1999 among the same
parties, pursuant to which the Class G Certificates have been issued.

      Payment of amounts hereunder shall be made in immediately available funds
(x) with respect to Deficiency Amounts no later than 3:00 p.m., New York City
time, on the later of (a) the relevant Distribution Date and (b) the Business
Day of presentation to State Street Bank and Trust Company, N.A., as Fiscal
Agent for MBIA or any successor fiscal agent appointed by MBIA (the "Fiscal
Agent") of a Notice of Nonpayment, appropriately completed and executed

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by the Beneficiary (if such Notice of Nonpayment is received by 1:00 p.m. on
such day), and (y) with respect to Avoided Payments, prior to 3:00 p.m. New York
City time, on the second Business Day following MBIA's receipt of the documents
required under clauses (x) through (z) of the second paragraph of this Policy.
Any such documents received by MBIA after 1:00 p.m. New York City time on any
Business Day or on any day that is not a Business Day shall be deemed to have
been received by MBIA prior to 1:00 p.m. on the next succeeding Business Day.
All payments made by MBIA hereunder in respect of Avoided Payments will be made
with MBIA's own funds. A Notice of Nonpayment or Notice of Avoided Payment under
this Policy may be presented to the Fiscal Agent on any Business Day by (a)
delivery of the original Notice of Nonpayment or Notice of Avoided Payment to
the Fiscal Agent at its address set forth below, or (b) facsimile transmission
of the original Notice of Nonpayment or Notice of Avoided Payment to the Fiscal
Agent at its facsimile number set forth below. If presentation is made by
facsimile transmission, the Beneficiary shall (i) simultaneously confirm
transmission by telephone to the Fiscal Agent at its telephone number set forth
below, and (ii) as soon as reasonably practicable, deliver the original Notice
of Nonpayment or Notice of Avoided Payment to the Fiscal Agent at its address
set forth below. Each Notice of Nonpayment or Notice of Avoided Payment shall be
delivered by facsimile and mail to MBIA simultaneously with its delivery to the
Fiscal Agent.

      If any Notice of Nonpayment received by the Fiscal Agent is not in proper
form or is otherwise insufficient for the purpose of making a claim hereunder,
it shall be deemed not to have been received by the Fiscal Agent, and MBIA or
the Fiscal Agent, as the case may be, shall promptly so advise the Beneficiary,
and the Beneficiary may submit an amended Notice of Nonpayment.

      Payments due hereunder unless otherwise stated herein will be disbursed by
the Fiscal Agent to the Subordination Agent for the benefit of the Class G
Certificateholders by wire transfer of immediately available funds in the amount
of such payment. MBIA's obligations under this Policy shall be discharged to the
extent funds equal to the amount due hereunder are received by the Subordination
Agent whether or not such funds are properly applied by the Subordination Agent.

      The Fiscal Agent is the agent of MBIA only, and the Fiscal Agent shall in
no event be liable to Class G Certificateholders for any acts of the Fiscal
Agent or any failure of MBIA to deposit or cause to be deposited sufficient
funds to make payments due under this Policy.

      Any notice hereunder delivered to the Fiscal Agent of MBIA may be made at
the address listed below for the Fiscal Agent of MBIA or such other address as
MBIA shall specify in writing to the Subordination Agent.

      The notice address of the Fiscal Agent is 61 Broadway, 15th Floor, New
York, New York 10006, Attention: Municipal Registrar and Paying Agency,
Facsimile: (212) 612-3201, Telephone: (212) 612-3458.

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      All notices, presentations, transmissions, deliveries and communications
made by the Beneficiary to MBIA with respect to this Policy shall specifically
refer to the number of this Policy and shall be made to MBIA at:

            MBIA Insurance Corporation
            113 King Street
            Armonk, N.Y. 10504
            Attention: Insured Portfolio Management,
                 Structured Finance
            Telephone:  (914) 273-4949
            Facsimile:  (914) 765-3163

or such other address, telephone number or facsimile number as MBIA may
designate to the Beneficiary in writing from time to time. Each such notice,
presentation, transmission, delivery and communication shall be effective only
upon actual receipt by MBIA.

      MBIA shall be subrogated to the rights of each Class G Certificateholder
to receive payments under the Class G Certificates to the extent of any payment
by MBIA for the benefit of the Class G Certificateholders hereunder as set forth
in the Agreement.

      This Policy is neither transferable nor assignable, in whole or in part,
except to a successor Subordination Agent duly appointed and qualified under the
Agreement. Such transfer and assignment shall be effective upon receipt by MBIA
of a copy of the instrument effecting such transfer and assignment signed by the
transferor and by the transferee, and a certificate, properly completed and
signed by the transferor and the transferee, in the form of Exhibit C hereto
(which shall be conclusive evidence of such transfer and assignment), and, in
such case, the transferee instead of the transferor shall, without the necessity
of further action, be entitled to all the benefits of and rights under this
Policy in the transferor's place, provided that, in such case, the Notice of
Nonpayment presented hereunder shall be a certificate of the transferee and
shall be signed by one who states therein that he is a duly authorized officer
of the transferee.

      There shall be no acceleration payment due under this Policy unless such
acceleration is at the sole option of MBIA.

      This Policy and the obligations of MBIA hereunder shall terminate on the
day (the "Termination Date") which is one year and one day following the
Distribution Date upon which the Final Distribution on the Class G Certificates
is made.

      The foregoing notwithstanding, if an Insolvency Proceeding is existing
during the one year and one day period set forth above, then this Policy and
MBIA's obligations hereunder shall terminate on the later of (i) the date of the
conclusion or dismissal of such Insolvency Proceeding without continuing
jurisdiction by the court in such Insolvency Proceeding, and (ii) the date on
which MBIA has made all payments required to be made under the terms of this
Policy in respect of Avoided Payments.

      This Policy is not covered by the property/casualty insurance fund
specified in Article Seventy-Six of the New York State insurance law.

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      This Policy sets forth in full the undertaking of MBIA, and, except as
expressly provided in the Insurance Agreement and the Agreement and shall not be
modified, altered or affected by any other agreement or instrument, including
any modification or amendment to any other agreement or instrument, or by the
merger, consolidation or dissolution of Northwest Airlines, Inc. or any other
Person and may not be canceled or revoked by MBIA prior to the time it is
terminated in accordance with the express terms hereof. The Premium on this
Policy is not refundable for any reason.

      This Policy shall be returned to MBIA upon termination.

      THIS POLICY SHALL BE CONSTRUED, AND THE OBLIGATIONS, RIGHTS AND REMEDIES
OF THE PARTIES HEREUNDER SHALL BE DETERMINED, IN ACCORDANCE WITH THE LAWS OF THE
STATE OF NEW YORK, WITHOUT REGARD TO CONFLICT OF LAWS PRINCIPLES OR THE
APPLICATION OF THE LAWS OF ANY OTHER JURISDICTION.

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      IN WITNESS WHEREOF, MBIA has caused this Policy to be duly executed on the
date first written above.

                           MBIA INSURANCE CORPORATION

                              By: ______________________________

                                    Name: Gary Dunton
                                    Title: President

                              By: ______________________________

                                    Name: Ann D. McKenna
                                    Title: Assistant Secretary

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                                                Exhibit A to Policy Number 30951

                         NOTICE OF NONPAYMENT AND DEMAND
                         FOR PAYMENT OF INSURED AMOUNTS

                                                    Date:  [                   ]

MBIA Insurance Corporation
113 King Street
Armonk, New York  10504

Attention:  Insured Portfolio Management,
            Structured Finance

State Street Bank and Trust Company, N.A.
61 Broadway, 15th Floor
New York, New York  10006
Attention: Municipal Registrar and Paying Agency

      Reference is made to Policy No. 30951 dated December 9, 1999 (the
"Policy") issued by MBIA Insurance Corporation ("MBIA"). Terms capitalized
herein and not otherwise defined shall have the meanings ascribed to such terms
in or pursuant to the Policy unless the context otherwise requires.

      The Subordination Agent hereby certifies as follows:

            1.    The Subordination Agent is the trustee for the Class G Trustee
                  under the Class G Trust Agreement.

            2.    The relevant Distribution Date is __________. Such
                  Distribution Date is a [Regular Distribution Date, a Special
                  Distribution Date, an Election Distribution Date or the Final
                  Legal Distribution Date].

      [3.   Payment of interest at the Stated Interest Rate on the Class G
            Certificates accrued to the Distribution Date which is a Regular
            Distribution Date as determined pursuant to paragraph (i) of the
            definition of "Deficiency Amount" in the Policy is an amount equal
            to $_________________.]

      [3.   The amount determined for payment to the Class G Certificateholders
            pursuant to paragraph (ii) of the definition of "Deficiency Amount"
            in the Policy on the Distribution Date which is a Special
            Distribution Date (other than an Election Distribution Date) in
            respect of a reduction in the outstanding Pool Balance of such Class
            G Certificates and accrued and unpaid interest on the amount of such
            reduction at the Stated Interest Rate is $___________.]
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      [3.   The Subordination Agent has not received a timely Policy Provider
            Election pursuant to the Policy and the amount determined for
            payment to the Class G Certificateholders pursuant to paragraph
            (iii) of the definition of "Deficiency Amount" in the Policy on the
            Distribution Date which is a Special Distribution Date in respect of
            the outstanding principal amount of the relevant Series G Equipment
            Note(s) and accrued and unpaid interest accrued thereon at the
            Stated Interest Rate for the Class G Certificates is $_______.]

      [3.   The Subordination Agent has received a timely Policy Provider
            Election pursuant to the Policy and the amount determined for
            payment to the Class G Certificateholders pursuant to the provision
            in paragraph (iii)(A) of the definition of "Deficiency Amount" in
            the Policy on the Distribution Date which is a Special Distribution
            Date in respect of scheduled principal (without regard to
            acceleration thereof) and interest at the Stated Interest Rate for
            the Class G Certificates payable but not paid on the relevant Series
            G Equipment Note during the eighteen (18) month period referred to
            in such paragraph (iii) is $_________.]

      [3.   The Subordination Agent has received a timely Policy Provider
            Election pursuant to the Policy, no Election Distribution Date has
            been established pursuant to the Policy or Special Distribution Date
            established pursuant to clause (iv) of the definition of "Deficiency
            Amount" and the amount determined for payment to the Class G
            Certificateholders pursuant to paragraph (iii)(B) of the definition
            of "Deficiency Amount" in the Policy on the Distribution Date which
            is a Regular Distribution Date in respect of scheduled principal
            (without regard to acceleration thereof) and interest payable at the
            Stated Interest Rate for the Class G Certificates due on the Regular
            Distribution Date on the relevant Series G Equipment Note is
            $____________.]

      [3.   The Subordination Agent has received a timely Policy Provider
            Election pursuant to the Policy, the Special Distribution Date
            related hereto is a Business Day elected by MBIA upon 20 days prior
            notice and the amount determined for payment to the Class G
            Certificateholders pursuant to paragraph (iv) of the definition of
            "Deficiency Amount" in the Policy in respect of outstanding
            principal on such Equipment Note (less any drawings previously paid
            by MBIA in respect of principal on such Equipment Note) and accrued
            interest thereon at the Stated Interest Rate for the Class G
            Certificates from the immediately preceding Regular Distribution
            Date to such Special Distribution Date is $__________.]

      [3.   The amount determined for payment to the Class G Certificateholders
            pursuant to paragraph (v) of the definition of "Deficiency Amount"
            in the Policy on the Distribution Date which is an Election
            Distribution Date in respect of the outstanding principal balance of
            the relevant Series G Equipment Note(less any drawings previously
            paid by MBIA in respect of principal on such Equipment Note) and
            accrued interest thereon at the Stated Interest Rate for the Class G
            Certificates from the immediately preceding Regular Distribution
            Date to such Election Distribution Date is $__________.]

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<PAGE>

      [3.   The amount determined for payment to the Class G Certificateholders
            pursuant to paragraph (vi) of the definition of "Deficiency Amount"
            in the Policy on the Distribution Date which is the Final Legal
            Distribution Date in respect of payment in full of the Final
            Distribution (other than premium) on the Class G Certificates is
            $__________.]

            4.    There is a Deficiency Amount in respect of such Distribution
                  Date of $__________________ in respect of the Class G
                  Certificates, which amount is an Insured Amount pursuant to
                  the terms of the Policy.

            5.    The sum of $__________________ is the Insured Amount that is
                  due.

            6.    The Subordination Agent has not heretofore made a demand for
                  the Insured Amount in respect of such Distribution Date.

            7.    The Subordination Agent hereby requests payment of such
                  Insured Amount that is due for payment be made by MBIA under
                  the Policy and directs that payment under the Policy be made
                  to the following account by bank wire transfer of federal or
                  other immediately available funds in accordance with the terms
                  of the Policy to:

      [    ]
            ABA #[     ]
            Acct # [     ]
            FBO:   [     ]

      [Policy Account number.]

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<PAGE>

            8.    The Subordination Agent hereby agrees that, following receipt
                  of the Insured Amount from MBIA, it shall (a) cause such funds
                  to be deposited in the Policy Account and not permit such
                  funds to be held in any other account, (b) cause such funds to
                  be paid to the Class G Trustee for distribution to the Class G
                  Certificateholders in payment of the Pool Balance of, or
                  interest on, the Class G Certificates (as applicable) and not
                  apply such funds for any other purpose and (c) maintain an
                  accurate record of such payments with respect to the Class G
                  Certificates and the corresponding claim on the Policy and
                  proceeds thereof.

                                          State Street Bank and Trust Company,
                                          as Subordination Agent

                                          By:_________________________________

                                          Title:______________________________
                                                         (Officer)

                                       4
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                                                Exhibit B to Policy Number 30951

                      NOTICE OF AVOIDED PAYMENT AND DEMAND
                        FOR PAYMENT OF PREFERENCE AMOUNTS

                                                    Date:  [                   ]

MBIA Insurance Corporation
113 King Street
Armonk, New York  10504

Attention:  Insured Portfolio Management,
            Structured Finance

State Street Bank and Trust Company, N.A.
61 Broadway, 15th Floor
New York, New York  10006
Attention: Municipal Registrar and Paying Agency

      Reference is made to Policy No. 30951 dated December 9, 1999 (the
"Policy") issued by MBIA Insurance Corporation ("MBIA"). Terms capitalized
herein and not otherwise defined shall have the meanings ascribed to such terms
in or pursuant to the Policy unless the context otherwise requires.

      The Subordination Agent hereby certifies as follows:

      1.    The Subordination Agent is the trustee for the Class G Trustee under
            the Trust Agreement.

      2.    The Subordination Agent has established ______________ as a Special
            Distribution Date pursuant to the Agreement for amounts claimed
            hereunder.

      3.    A Final Order providing for the recovery of a Preference Amount of
            $___________________ has been issued.

      4.    $__________________ of the amount set forth in item No. 3 above has
            been paid by the Class G Certificateholders and $________________ is
            required to be paid to the receiver, conservator,
            debtor-in-possession or trustee in bankruptcy named in the Final
            Order.

      5.    The Subordination Agent has not heretofore made a demand for such
            Preference Amount.

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      6.    The Subordination Agent has delivered to MBIA or has attached hereto
            all documents required by the Policy to be delivered in connection
            with such Preference Amount.

      7.    The Subordination Agent hereby requests that payment of
            $______________ of such Preference Amount be made to the receiver,
            conservator, debtor-in-possession or trustee in bankruptcy named in
            the Final Order and $________________ of such Preference Amount be
            paid to the Subordination Agent for payment over to the Class G
            Trustee for distribution to theClass G Certificateholders, in each
            case, by MBIA under the Policy and directs that payment under the
            Policy be made to the following account by bank wire transfer of
            federal or other immediately available funds in accordance with the
            terms of the Policy to:

      8.    For the portion to be paid to the receiver, conservator,
            debtor-in-possession or trustee, to ______________________:

            ABA #[     ]
            Acct # [     ]
            FBO:   [     ]

      [relevant account number]

      For the portion to be paid to the Subordination Agent:

            ABA #[     ]
            Acct # [     ]
            FBO:   [     ]

      [Policy Account Number]

                                          [Name of Subordination Agent]
By:

Title:
                  (Officer)

                                       2
<PAGE>

                                                Exhibit C to Policy Number 30951

MBIA Insurance Corporation
113 King Street
Armonk, New York 10504

Attention:  Insured Portfolio Management,
            Structured Finance

Dear Sirs:

      Reference is made to that certain Policy, Number 30951 dated December 9,
1999 (the "Policy") which has been issued by MBIA Insurance Corporation in favor
of the Subordination Agent.

      The undersigned [Name of Transferor] has transferred and assigned (and
hereby confirms to you said transfer and assignment) all of its rights in and
under said Policy to [Name of Transferee] and confirms that [Name of Transferor]
no longer has any rights under or interest in said Policy.

      Transferor and Transferee have indicated on the face of said Policy that
it has been transferred and assigned to Transferee.

      Transferee hereby certifies that it is a duly authorized transferee under
the terms of said Policy and is accordingly entitled, upon presentation of the
document(s) called for therein, to receive payment thereunder.

_________________________
[Name of Transferor]

By:______________________
   [Name and Title of
   Authorized Officer of
   Transferor

                                       1
<PAGE>

Exhibit D to Policy Number 30951
                               Form of Assignment

      Reference is made to that certain Policy No. 30951, dated December 9, 1999
(the "Policy") issued by MBIA Insurance Corporation ("MBIA") relating to the
Northwest Airlines 1999-3G Pass Through Trust Certificates. Unless otherwise
defined herein, capitalized terms used in this Assignment shall have the
meanings assigned thereto in the Policy as incorporated by reference therein. In
connection with the Avoided Payment of [$ ] paid by the undersigned (the "Class
G Certificateholder") on [ ] and the payment by MBIA in respect of such Avoided
Payment pursuant to the Policy, the Class G Certificateholder hereby irrevocably
and unconditionally, without recourse, representation or warranty (except as
provided below), sells, assigns, transfers, conveys and delivers all of such
Class G Certificateholder's rights, title and interest in and to any rights or
claims, whether accrued, contingent or otherwise, which the Class G
Certificateholder now has or may hereafter acquire, against any person relating
to, arising out of or in connection with such Avoided Payment. The Class G
Certificateholder represents and warrants that such claims and rights are free
and clear of any lien or encumbrance created or incurred by such Class G
Certificateholder.(1)

____________________________
Class G Certificateholder

----------
      (1) In the event that the terms of this form of assignment are reasonably
determined to be insufficient solely as a result of a change of law or
applicable rules after the date of the Policy to fully vest all of the Class G
Certificateholder's right, title and interest in such rights and claims, the
Class G Certificateholder and MBIA shall agree on such other form as is
reasonably necessary to effect such assignment, which assignment shall be
without recourse, representation or warranty except as provided above.

                                       1
<PAGE>

                                       2<PAGE>

                                                                    Exhibit 4(f)

                                                                [EXECUTION COPY]

                             INTERCREDITOR AGREEMENT

                                   Dated as of

                                December 9, 1999

                                  BY AND AMONG

               STATE STREET BANK AND TRUST COMPANY OF CONNECTICUT,
                              NATIONAL ASSOCIATION,

                         not in its individual capacity
                         but solely as Trustee under the
                 Northwest Airlines Pass Through Trust 1999-3G,
                  Northwest Airlines Pass Through Trust 1999-3B
                                       and
                  Northwest Airlines Pass Through Trust 1999-3C

                      MORGAN STANLEY CAPITAL SERVICES, INC.

                          as Class G Liquidity Provider
                           Class B Liquidity Provider
                                       and
                           Class C Liquidity Provider,

                       STATE STREET BANK AND TRUST COMPANY

                      not in its individual capacity except
                        as expressly set forth herein but
               solely as Subordination Agent and trustee hereunder

                                       AND

                           MBIA INSURANCE CORPORATION

                               as Policy Provider
<PAGE>

                               TABLE OF CONTENTS

                                                                          Page
                                                                          ----

                                    ARTICLE I

DEFINITIONS

SECTION 1.1    Definitions...................................................2

                                   ARTICLE II

                        TRUST ACCOUNTS; CONTROLLING PARTY

SECTION 2.1    Agreement to Terms of Subordination; Payments from Monies
                  Received Only.............................................25
SECTION 2.2    Trust Accounts...............................................25
SECTION 2.3    Deposits to the Collection Account and Special Payments
                  Account...................................................26
SECTION 2.4    Distributions of Special Payments............................27
SECTION 2.5    Designated Representatives...................................30
SECTION 2.6    Controlling Party............................................30

                                   ARTICLE III

            RECEIPT, DISTRIBUTION AND APPLICATION OF AMOUNTS RECEIVED

SECTION 3.1    Written Notice of Distribution...............................32
SECTION 3.2    Distribution of Amounts on Deposit in the Collection
                  Account...................................................35
SECTION 3.3    Distribution of Amounts on Deposit Following a Triggering
                  Event.....................................................37
SECTION 3.4    Other Payments...............................................39
SECTION 3.5    Payments to the Trustees, the Liquidity Providers and the
                  Policy Provider...........................................40
SECTION 3.6    Liquidity Facilities.........................................40
SECTION 3.7    The Policy...................................................46

                                   ARTICLE IV

                              EXERCISE OF REMEDIES

SECTION 4.1    Directions from the Controlling Party........................50
SECTION 4.2    Remedies Cumulative..........................................51
SECTION 4.3    Discontinuance of Proceedings................................51
SECTION 4.4    Right of Certificateholders to Receive Payments Not to Be
                  Impaired..................................................51
SECTION 4.5    Undertaking for Costs........................................51

                                    ARTICLE V

                                      -ii-
<PAGE>

                                                                          Page
                                                                          ----

                       DUTIES OF THE SUBORDINATION AGENT;
                          AGREEMENTS OF TRUSTEES, ETC.

SECTION 5.1    Notice of Indenture Default or Triggering Event..............52
SECTION 5.2    Indemnification..............................................52
SECTION 5.3    No Duties Except as Specified in Intercreditor Agreement.....53
SECTION 5.4    Notice from the Liquidity Providers and Trustees.............53

                                   ARTICLE VI

                             THE SUBORDINATION AGENT

SECTION 6.1    Authorization; Acceptance of Trusts and Duties...............53
SECTION 6.2    Absence of Duties............................................54
SECTION 6.3    No Representations or Warranties as to Documents.............54
SECTION 6.4    No Segregation of Monies; No Interest........................54
SECTION 6.5    Reliance; Agents; Advice of Counsel..........................54
SECTION 6.6    Capacity in Which Acting.....................................55
SECTION 6.7    Compensation.................................................55
SECTION 6.8    May Become Certificateholder.................................55
SECTION 6.9    Subordination Agent Required; Eligibility....................55
SECTION 6.10   Money to Be Held in Trust....................................56

                                   ARTICLE VII

                     INDEMNIFICATION OF SUBORDINATION AGENT

SECTION 7.1    Scope of Indemnification.....................................56

                                  ARTICLE VIII

                          SUCCESSOR SUBORDINATION AGENT

SECTION 8.1    Replacement of Subordination Agent; Appointment of
                  Successor.................................................56

                                   ARTICLE IX

                           SUPPLEMENTS AND AMENDMENTS

SECTION 9.1    Amendments, Waivers, Etc.....................................57
SECTION 9.2    Subordination Agent Protected................................59
SECTION 9.3    Effect of Supplemental Agreements............................59
SECTION 9.4    Notice to Rating Agencies....................................59
SECTION 9.5    Addition of Class D Trustee..................................59

                                     -iii-
<PAGE>

                                                                          Page
                                                                          ----

                                   ARTICLE X

                                 MISCELLANEOUS

SECTION 10.1   Termination of Intercreditor Agreement.......................60
SECTION 10.2   Intercreditor Agreement for Benefit of Trustees, Liquidity
                  Providers, the Policy Provider and Subordination Agent....60
SECTION 10.3   Notices......................................................60
SECTION 10.4   Severability.................................................61
SECTION 10.5   No Oral Modifications or Continuing Waivers..................62
SECTION 10.6   Successors and Assigns.......................................62
SECTION 10.7   Headings.....................................................62
SECTION 10.8   Counterpart Form.............................................62
SECTION 10.9   Subordination................................................62
SECTION 10.10  Governing Law................................................63
SECTION 10.11  Submission to Jurisdiction; Waiver of Jury Trial; Waiver of
                  Immunity..................................................64

                                      -iv-
<PAGE>

                             INTERCREDITOR AGREEMENT

            INTERCREDITOR AGREEMENT dated as of December 9, 1999, by and among
STATE STREET BANK AND TRUST COMPANY OF CONNECTICUT, NATIONAL ASSOCIATION, a
national banking association ("State Street of Connecticut"), not in its
individual capacity but solely as Trustee of each Trust (each as defined below),
MORGAN STANLEY CAPITAL SERVICES, INC., a Delaware corporation, ("MSCS"), as
Class G Liquidity Provider, MSCS, as Class B Liquidity Provider, MSCS, as Class
C Liquidity Provider, STATE STREET BANK AND TRUST COMPANY, a Massachusetts trust
company, not in its individual capacity except as expressly set forth herein,
but solely as Subordination Agent and trustee hereunder (in such capacity,
together with any successor appointed pursuant to Article VIII hereof, the
"Subordination Agent"), and MBIA INSURANCE CORPORATION, a New York stock
insurance company, ("MBIA"), as the Policy Provider.

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

            WHEREAS, pursuant to each Indenture (i) in the case of each Aircraft
that is owned by Northwest at the time such Indenture is entered into (the
"Owned Aircraft"), Northwest will issue on a recourse basis three series of
Equipment Notes to finance the purchase of such Aircraft, and (ii) in the case
of each Aircraft that is leased to Northwest pursuant to a related Lease at the
time such Indenture is entered into (the "Leased Aircraft"), the related Owner
Trustee will issue on a nonrecourse basis three series of Equipment Notes to
finance the purchase of such Aircraft;

            WHEREAS, pursuant to the Financing Agreements, each Trust will
acquire Equipment Notes having an interest rate equal to the interest rate
applicable to the Certificates to be issued by such Trust;

            WHEREAS, pursuant to each Trust Agreement, the Trust created thereby
proposes to issue a single class of Certificates (a "Class") bearing the
interest rate and having the final distribution date described in such Trust
Agreement on the terms and subject to the conditions set forth therein;

            WHEREAS, pursuant to the Underwriting Agreement (as defined below),
the Underwriters propose to purchase the Certificates issued by each Trust in
the aggregate face amount set forth opposite the name of such Trust on Schedule
I thereto on the terms and subject to the conditions set forth therein;

            WHEREAS, each Liquidity Provider proposes to enter into a revolving
credit agreement (each, a "Liquidity Facility") with the Subordination Agent, as
agent for the Trustee of each Trust, for the benefit of the Certificateholders
of such Trust;
<PAGE>

            WHEREAS, Morgan Stanley Dean Witter & Co. will guarantee in full,
pursuant to separate guarantee agreements dated as of the date hereof (each, a
"Liquidity Guarantee Agreement"), the obligations of MSCS under the Liquidity
Facilities;

            WHEREAS, the Policy Provider proposes to enter into the Policy
Provider Agreement providing for the issuance by the Policy Provider of the
Policy for the benefit of the Class G Trustee and Class G Certificateholders;
and

            WHEREAS, it is a condition precedent to the obligations of the
Underwriters under the Underwriting Agreement that the Subordination Agent, the
Trustees, the Liquidity Providers and the Policy Provider agree to the terms of
subordination set forth in this Agreement in respect of each Class of
Certificates, and the Subordination Agent, the Trustees, the Liquidity Providers
and the Policy Provider, by entering into this Agreement, hereby acknowledge and
agree to such terms of subordination and the other provisions of this Agreement.

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

                                   ARTICLE I

                                  DEFINITIONS

            SECTION 1.1 Definitions. For all purposes of this Agreement, except
as otherwise expressly provided or unless the context otherwise requires:

            (1) the terms used herein that are defined in this Article have the
      meanings assigned to them in this Article, and include the plural as well
      as the singular;

            (2) all references in this Agreement to designated "Articles",
      "Sections" and other subdivisions are to the designated Articles, Sections
      and other subdivisions of this Agreement;

            (3) the words "herein", "hereof" and "hereunder" and other words of
      similar import refer to this Agreement as a whole and not to any
      particular Article, Section or other subdivision; and

            (4) the term "including" shall mean "including without limitation".

            "Acceleration" means, with respect to the amounts payable in respect
      of the Equipment Notes issued under any Indenture, the declaration or
      deemed declaration of

                                       2
<PAGE>

      such amounts to be immediately due and payable. "Accelerate" and
      "Accelerated" have meanings correlative to the foregoing.

            "Accrued Class G Interest" has the meaning assigned to such term in
      Section 3.7(a).

            "Adjusted Expected Distributions" means with respect to the
      Certificates of any Class on any Current Distribution Date the sum of (x)
      the amount of accrued and unpaid interest on such Certificates (excluding
      interest, if any, payable with respect to the Deposits related to such
      Trust) plus (y) the greater of:

                  (A) the difference between (x) the Pool Balance of such
            Certificates as of the immediately preceding Distribution Date (or
            if the Current Distribution Date is the first Distribution Date, the
            original aggregate face amount of the Certificates of such Trust)
            and (y) the Pool Balance of such Certificates as of the Current
            Distribution Date calculated on the basis that (i) the principal of
            the NonPerforming Equipment Notes held in such Trust has been paid
            in full and such payments have been distributed to the holders of
            such Certificates, (ii) the principal of the Performing Equipment
            Notes has been paid when due (but without giving effect to any
            Acceleration of Performing Equipment Notes) and has been distributed
            to the holders of such Certificates and (iii) the principal of any
            Equipment Notes formerly held in such Trust which have been sold
            pursuant to the terms hereof have been paid in full and such
            payments have been distributed to the holders of such Certificates
            but without giving effect to any reduction in the Pool Balance as a
            result of any distribution attributable to Deposits occurring after
            the immediately preceding Distribution Date (or, if the Current
            Distribution Date is the first Distribution Date, occurring after
            the initial issuance of the Certificates of such Trust) and

                  (B) the amount of the excess, if any, by which (i) the Pool
            Balance of such Class of Certificates as of the immediately
            preceding Distribution Date (or, if the Current Distribution Date is
            the first Distribution Date, the original aggregate face amount of
            the Certificates of such Trust) less the amount of the Deposits for
            such Class of Certificates as of such preceding Distribution Date
            (or, if the Current Distribution Date is the first Distribution
            Date, the original aggregate amount of the Deposits for such Class
            of Certificates) other than any portion of such Deposits thereafter
            used to acquire Equipment Notes pursuant to the Note Purchase
            Agreement, over (ii) the Aggregate LTV Collateral Amount for such
            Class of Certificates for the Current Distribution Date;

      provided that, until the date of the initial LTV Appraisals, clause (B)
      above shall not be applicable.

                                       3
<PAGE>

            "Affiliate" means, with respect to any Person, any other Person
      directly or indirectly controlling, controlled by or under common control
      with such Person. For the purposes of this definition, "control" means the
      power, directly or indirectly, to direct or cause the direction of the
      management and policies of such Person whether through the ownership of
      voting securities or by contract or otherwise; and the terms "controlling"
      and "controlled" have meanings correlative to the foregoing.

            "Aggregate LTV Collateral Amount" means for any Class of
      Certificates for any Distribution Date (i) the sum of the applicable LTV
      Collateral Amounts for each Leased Aircraft and Owned Aircraft, minus the
      Pool Balance for each Class of Certificates, if any, senior to such Class
      after giving effect to any distribution of principal on such Distribution
      Date with respect to such senior Class or Classes.

            "Aircraft" means, with respect to any Indenture, the "Aircraft"
      referred to therein.

            "Appraised Current Market Value" of any Leased Aircraft or Owned
      Aircraft means the lower of the average and the median of the most recent
      three LTV Appraisals of such Aircraft.

            "Appraisers" means Aircraft Information Systems, Inc., AvSOLUTIONS,
      Inc. and Morten Beyer and Agnew, Inc.

            "Available Amount" means, with respect to any Liquidity Facility on
      any drawing date, an amount equal to (a) the Stated Amount of such
      Liquidity Facility, less (b) the amount of each Interest Drawing honored
      by the Liquidity Provider under such Liquidity Facility on or prior to
      such date which has not been reimbursed or reinstated as provided in
      Section 3.6(g) hereof as of such date; provided that, following a
      Downgrade Drawing, a Non-Extension Drawing or a Final Drawing under such
      Liquidity Facility, the Available Amount of such Liquidity Facility shall
      be zero.

            "Business Day" means any day other than a Saturday or Sunday or a
      day on which, for purposes the Policy and the Policy Provider, insurance
      companies in New York, New York and, for all such and all other purposes
      hereunder, commercial banks are required or authorized to close in
      Minneapolis, Minnesota, New York, New York, or the city and state in which
      any Trustee, the Subordination Agent or any Loan Trustee maintains its
      Corporate Trust Office or receives and disburses funds. Solely with
      respect to draws under any Liquidity Facility, Business Day shall also
      include a "Business Day" as defined in such Liquidity Facility.

            "Cash Collateral Account" means the Class G Cash Collateral Account,
      the Class B Cash Collateral Account or the Class C Cash Collateral
      Account, as applicable.

                                       4
<PAGE>

            "Certificate" means a Class G Certificate, a Class B Certificate or
      a Class C Certificate, as applicable.

            "Certificateholder" means any holder of one or more Certificates.

            "Class" has the meaning assigned to such term in the preliminary
      statements to this Agreement.

            "Class B Cash Collateral Account" means an Eligible Deposit Account
      in the name of the Subordination Agent maintained at an Eligible
      Institution, which shall be the Subordination Agent if it shall so
      qualify, into which all amounts drawn under the Class B Liquidity Facility
      pursuant to Section 3.6(c), 3.6(d) or 3.6(i) shall be deposited.

            "Class B Certificateholder" means, at any time, any holder of one or
      more Class B Certificates.

            "Class B Certificates" means the certificates issued by the Class B
      Trust, substantially in the form of Exhibit A to the Class B Trust
      Agreement, and authenticated by the Class B Trustee, representing
      fractional undivided interests in the Class B Trust, and any certificates
      issued in exchange therefor or replacement thereof pursuant to the terms
      of the Class B Trust Agreement.

            "Class B Liquidity Facility" means, initially, the Revolving Credit
      Agreement dated as of December 9, 1999, by and between the Subordination
      Agent, as agent and trustee of the Class B Trustee, and the Class B
      Liquidity Provider, and, from and after the replacement of such Agreement
      pursuant hereto, the Replacement Liquidity Facility therefor, if any, in
      each case as amended, supplemented or otherwise modified from time to time
      in accordance with its terms.

            "Class B Liquidity Provider" means MSCS, together with any
      Replacement Liquidity Provider which has issued a Replacement Liquidity
      Facility to replace the Class B Liquidity Facility pursuant to Section
      3.6(e).

            "Class B Trust" means Northwest Airlines 1999-3B Pass Through Trust
      created and administered pursuant to the Class B Trust Agreement.

            "Class B Trust Agreement" means the Pass Through Trust Agreement, as
      supplemented by Trust Supplement No. 1999-3B thereto dated as of December
      9, 1999, by and among Northwest, the Guarantor and the Trustee, governing
      the creation and administration of the Class B Trust and the issuance of
      the Class B Certificates, as the same may be amended, supplemented or
      otherwise modified from time to time in accordance with its terms.

                                       5
<PAGE>

            "Class B Trustee" means State Street of Connecticut, not in its
      individual capacity except as expressly set forth in the Class B Trust
      Agreement, but solely as trustee under the Class B Trust Agreement,
      together with any successor trustee appointed pursuant thereto.

            "Class C Cash Collateral Account" means an Eligible Deposit Account
      in the name of the Subordination Agent and maintained at an Eligible
      Institution, which shall be the Subordination Agent if it shall so
      qualify, into which all amounts drawn under the Class C Liquidity Facility
      pursuant to Section 3.6(c), 3.6(d) or 3.6(i) shall be deposited.

            "Class C Certificateholder" means, at any time, any holder of one or
      more Class C Certificates.

            "Class C Certificates" means the certificates issued by the Class C
      Trust, substantially in the form of Exhibit A to the Class C Trust
      Agreement, and authenticated by the Class C Trustee, representing
      fractional undivided interests in the Class C Trust, and any certificates
      issued in exchange therefor or in replacement thereof pursuant to the
      terms of the Class C Trust Agreement.

            "Class C Liquidity Facility" means, initially, the Revolving Credit
      Agreement dated as of December 9, 1999, by and between the Subordination
      Agent, as agent and trustee of the Class C Trustee, and the Class C
      Liquidity Provider and, from and after the replacement of such Agreement
      pursuant hereto, the Replacement Liquidity Facility therefor, if any, in
      each case as amended, supplemented or otherwise modified from time to time
      in accordance with its terms.

            "Class C Liquidity Provider" means MSCS, together with any
      Replacement Liquidity Provider which has issued a Replacement Liquidity
      Facility to replace the Class C Liquidity Facility pursuant to Section
      3.6(e).

            "Class C Trust" means Northwest Airlines 1999-3C Pass Through Trust
      created and administered pursuant to the Class C Trust Agreement.

            "Class C Trust Agreement" means the Pass Through Trust Agreement, as
      supplemented by Trust Supplement No. 1999-3C thereto dated as of December
      9, 1999, by and among Northwest, the Guarantor and the Trustee, governing
      the creation and administration of the Class C Trust and the issuance of
      the Class C Certificates, as the same may be amended, supplemented or
      otherwise modified from time to time in accordance with its terms.

            "Class C Trustee" means State Street of Connecticut, not in its
      individual capacity except as expressly set forth in the Class C Trust
      Agreement, but solely as trustee under

                                       6
<PAGE>

      the Class C Trust Agreement, together with any successor trustee appointed
      pursuant thereto.

            "Class D Certificates" means the pass through certificates, if any,
      issued by Northwest Airlines, Inc. and designated Series 1999-3D, in
      connection with a secured financing of an Owned Aircraft or a Leased
      Aircraft.

            "Class D Trustee" means the trustee of the trust relating to the
      Class D Certificates.

            "Class G Cash Collateral Account" means an Eligible Deposit Account
      in the name of the Subordination Agent maintained at an Eligible
      Institution, which shall be the Subordination Agent if it shall so
      qualify, into which all amounts drawn under the Class G Liquidity Facility
      pursuant to Section 3.6(c), 3.6(d) or 3.6(i) shall be deposited.

            "Class G Certificateholder" means, at any time, any holder of one or
      more Class G Certificates.

            "Class G Certificates" means the certificates issued by the Class G
      Trust, substantially in the form of Exhibit A to the Class G Trust
      Agreement, and authenticated by the Class G Trustee, representing
      fractional undivided interests in the Class G Trust, and any certificates
      issued in exchange therefor or replacement thereof pursuant to the terms
      of the Class G Trust Agreement.

            "Class G Deposits" means the Deposits with respect to the Class G
      Certificates.

            "Class G Liquidity Facility" means, initially, the Revolving Credit
      Agreement dated as of December 9, 1999, by and between the Subordination
      Agent, as agent and trustee of the Class G Trustee, and the Class G
      Liquidity Provider, and, from and after the replacement of such Agreement
      pursuant hereto, the Replacement Liquidity Facility therefor, if any, in
      each case as amended, supplemented or otherwise modified from time to time
      in accordance with its terms.

            "Class G Liquidity Provider" means MSCS, together with any
      Replacement Liquidity Provider which has issued a Replacement Liquidity
      Facility to replace the Class G Liquidity Facility pursuant to Section
      3.6(e).

            "Class G Paying Agent Account" means the Paying Agent Account as
      defined in the Escrow and Paying Agent Agreement relating to the Class G
      Certificates.

            "Class G Trust" means Northwest Airlines 1999-3G Pass Through Trust
      created and administered pursuant to the Class G Trust Agreement.

                                       7
<PAGE>

            "Class G Trust Agreement" means the Pass Through Trust Agreement, as
      supplemented by Trust Supplement No. 1999-3G thereto dated as of December
      9, 1999, by and among Northwest, the Guarantor and the Trustee, governing
      the creation and administration of the Class G Trust and the issuance of
      the Class G Certificates, as the same may be amended, supplemented or
      otherwise modified from time to time in accordance with its terms.

            "Class G Trustee" means State Street of Connecticut, not in its
      individual capacity except as expressly set forth in the Class G Trust
      Agreement, but solely as trustee under the Class G Trust Agreement,
      together with any successor trustee appointed pursuant thereto.

            "Closing Date" means December 9, 1999.

            "Code" means the Internal Revenue Code of 1986, as amended from time
      to time, and Treasury Regulations promulgated thereunder.

            "Collateral" has the meaning assigned to such term in the Owned
      Aircraft Indentures.

            "Collection Account" means the Eligible Deposit Account established
      by the Subordination Agent pursuant to Section 2.2 which the Subordination
      Agent shall make deposits in and withdrawals from in accordance with this
      Agreement.

            "Controlling Party" means the Person entitled to act as such
      pursuant to the terms of Section 2.6.

            "Corporate Trust Office" means, with respect to any Trustee, the
      Subordination Agent or any Loan Trustee, the office of such Person in the
      city at which, at any particular time, its corporate trust business shall
      be principally administered.

            "Current Distribution Date" means a Distribution Date specified as a
      reference date for calculating the Adjusted Expected Distributions or
      Expected Distributions with respect to the Certificates of any Trust as of
      such Distribution Date.

            "Defaulted Series G Equipment Note" has the meaning assigned to such
      term in Section 3.7(c).

            "Delivery Period Expiry Date" means July 31, 2000.

            "Deposit Agreement" shall mean, with respect to any Class, the
      Deposit Agreement pertaining to such Class dated the date hereof between
      the Escrow Agent, and

                                       8
<PAGE>

      the Depositary, as the same may be amended, modified or supplemented from
      time to time in accordance with the terms thereof.

            "Depositary" means ABN AMRO Bank N.V. as depositary under the
      Deposit Agreement relating to Class G, Class B and Class C Certificates.

            "Deposits" with respect to any Class, shall have the meaning set
      forth in the Deposit Agreement pertaining to such Class.

            "Designated Representatives" means the Subordination Agent
      Representatives, Trustee Representatives and the Provider Representatives
      identified under Section 2.5.

            "Disposition Payment" has the meaning assigned to such term in
      Section 3.7(b).

            "Distribution Date" means a Regular Distribution Date or a Special
      Distribution Date.

            "Dollars" or "$" means United States dollars.

            "Downgrade Drawing" has the meaning assigned to such term in Section
      3.6(c).

            "Downgraded Facility" has the meaning assigned to such term in
      Section 3.6(c).

            "Drawing" means an Interest Drawing, a Non-Extension Drawing, a
      Final Drawing or a Downgrade Drawing, as the case may be.

            "Election Distribution Date" has the meaning assigned to such term
      in Section 3.7(c).

            "Eligible Deposit Account" means either (a) a segregated account
      with an Eligible Institution or (b) a segregated trust account with the
      corporate trust department of a depository institution organized under the
      laws of the United States of America or any one of the states thereof or
      the District of Columbia (or any U.S. branch of a foreign bank), having
      corporate trust powers and acting as trustee for funds deposited in such
      account, so long as any of the securities of such depository institution
      has a long-term unsecured debt rating from each Rating Agency of at least
      A-3 or its equivalent. An Eligible Deposit Account may be maintained with
      a Liquidity Provider so long as such Liquidity Provider is an Eligible
      Institution (as defined below); provided that such Liquidity Provider
      shall have waived all rights of set-off and counterclaim with respect to
      such account.

            "Eligible Institution" means, subject to the last sentence of
      subsection 2.2(c), (a) the corporate trust department of the Subordination
      Agent or any Trustee, as applicable,

                                       9
<PAGE>

      or (b) a depository institution organized under the laws of the United
      States of America or any one of the states thereof or the District of
      Columbia (or any U.S. branch of a foreign bank), which has a long-term
      unsecured debt rating from each Rating Agency of at least A-3 or its
      equivalent.

            "Eligible Investments" means (a) investments in obligations of, or
      guaranteed by, the United States Government having maturities no later
      than 90 days following the date of such investment, (b) investments in
      open market commercial paper of any corporation incorporated under the
      laws of the United States of America or any state thereof with a
      short-term unsecured debt rating issued by Moody's and Standard & Poor's
      of at least A-1 and P-1, respectively, and, if rated by Fitch, F-1, having
      maturities no later than 90 days following the date of such investment or
      (c) investments in negotiable certificates of deposit, time deposits,
      banker's acceptances, commercial paper or other direct obligations of, or
      obligations guaranteed by, commercial banks organized under the laws of
      the United States or of any political subdivision thereof (or any U.S.
      branch of a foreign bank) with issuer ratings of at least B/C by Thomson
      Bankwatch, having maturities no later than 90 days following the date of
      such investment; provided, however, that (x) all Eligible Investments that
      are bank obligations shall be denominated in U.S. dollars; and (y) the
      aggregate amount of Eligible Investments at any one time that are bank
      obligations issued by any one bank shall not be in excess of 5% of such
      bank's capital surplus; provided further that (1) any investment of the
      types described in clauses (a), (b) and (c) above may be made through a
      repurchase agreement in commercially reasonable form with a bank or other
      financial institution qualifying as an Eligible Institution so long as
      such investment is held by a third party custodian also qualifying as an
      Eligible Institution, and (2) all such investments set forth in (a), (b)
      and (c) above mature no later than the Business Day immediately preceding
      the next Regular Distribution Date; provided further, however, that in the
      case of any Eligible Investment issued by a domestic branch of a foreign
      bank, the income from such investment shall be from sources within the
      United States for purposes of the Code. Notwithstanding the foregoing, no
      investment of the types described in clause (b) or (c) above which is
      issued or guaranteed by a Liquidity Provider or Northwest or any of their
      respective Affiliates shall be an Eligible Investment.

            "Eligible Provider" has the meaning assigned to such term in Section
      2.6(c).

            "Equipment Notes" means, at any time, the Series G Equipment Notes,
      the Series B Equipment Notes and the Series C Equipment Notes,
      collectively, and in each case, any Equipment Notes issued in exchange
      therefor or replacement thereof pursuant to the terms of the Indentures.

            "Escrow Agent" means First Security Bank, National Association, as
      escrow agent under each Escrow and Paying Agent Agreement, together with
      its successors in such capacity.

                                       10
<PAGE>

            "Escrow and Paying Agent Agreement" shall mean, with respect to any
      Class, the Escrow and Paying Agent Agreement pertaining to such Class,
      dated the date hereof, among the Escrow Agent, the Underwriters, the
      Trustee for such Class and the Paying Agent, as the same may be amended,
      modified or supplemented from time to time in accordance with the terms
      thereof.

            "Excess Reimbursement Obligations" means, (a) in the event of any
      Policy Provider Election, the portion of the Policy Provider Obligations
      that represents interest on the Series G Equipment Note in respect of
      which the Policy Provider Election has been made in excess of 18 months of
      interest at the interest rate applicable to such Series G Equipment Note
      and (b) any interest on the Liquidity Obligations in respect of the
      Liquidity Facilities paid by the Policy Provider to the Liquidity
      Providers from and after the end of the 18-month period referred to in
      Section 3.7(c) hereof.

            "Expected Distributions" means, with respect to the Certificates of
      any Trust on any Current Distribution Date, the sum of (x) accrued and
      unpaid interest on such Certificates (excluding interest, if any, payable
      with respect to the Deposits related to such Trust) and (y) the difference
      between (A) the Pool Balance of such Certificates as of the immediately
      preceding Distribution Date (or if the Current Distribution Date is the
      first Distribution Date, the original aggregate face amount of the
      Certificates of such Trust) and (B) the Pool Balance of such Certificates
      as of the Current Distribution Date, calculated on the basis that (1) the
      principal of the Equipment Notes held in such Trust has been paid when due
      (whether at stated maturity or upon redemption, prepayment, purchase or
      acceleration or otherwise) and such payments have been distributed to the
      holders of such Certificates and (2) the principal of any Equipment Notes
      formerly held in such Trust that have been sold pursuant to this Agreement
      has been paid in full and such payments distributed to the
      Certificateholders, but without giving effect to any reduction in the Pool
      Balance as a result of any distribution attributable to Deposits occurring
      after the immediately preceding Distribution Date (or, if the Current
      Distribution Date is the first Distribution Date, occurring after the
      initial issuance of the Certificates of such Trust). For purposes of
      calculating Expected Distributions, any premium paid on the Equipment
      Notes held in any Trust which has not been distributed to the
      Certificateholders of such Trust (other than such premium or a portion
      thereof applied to the payment of interest on the Certificates of such
      Trust or the reduction of the Pool Balance of such Trust) shall be added
      to the amount of such Expected Distributions.

            "Expiry Date" with respect to any Liquidity Facility, shall have the
      meaning set forth in such Liquidity Facility.

            "Fee Letter" with respect to any Liquidity Facility, shall have the
      meaning set forth in such Liquidity Facility.

                                       11
<PAGE>

            "Final Distributions" means, with respect to the Certificates of any
      Trust on any Distribution Date, the sum of (a) the aggregate amount of all
      accrued and unpaid interest on such Certificates (excluding interest, if
      any, payable with respect to the Deposits relating to such Trust) and (b)
      the Pool Balance of such Certificates as of the immediately preceding
      Distribution Date (less the amount of the Deposits for such Class of
      Certificates as of such preceding Distribution Date other than any portion
      of such Deposits thereafter used to acquire Equipment Notes pursuant to
      the Note Purchase Agreement). For purposes of calculating Final
      Distributions with respect to the Certificates of any Trust, any premium
      paid on the Equipment Notes held in such Trust which has not been
      distributed to the Certificateholders of such Trust (other than such
      premium or a portion thereof applied to the payment of interest on the
      Certificates of such Trust or the reduction of the Pool Balance of such
      Trust) shall be added to the amount of such Final Distributions.

            "Final Drawing" means, in respect of a Liquidity Facility, a
      borrowing or drawing, other than an Interest Drawing, a Downgrade Drawing
      or a Non-Extension Drawing, of all available and undrawn amounts under
      such Liquidity Facility in accordance with the provisions thereof.

            "Final Legal Distribution Date" means, for the Class G Certificates,
      October 1, 2020, for the Class B Certificates, October 1, 2016, and, for
      the Class C Certificates, October 1, 2011.

            "Final Order" has the meaning assigned to such term in the Policy.

            "Financing Agreement" means each of the Participation Agreements and
      the Note Purchase Agreement.

            "Fitch" means Fitch Investors Service, L.P.

            "Guarantor" means Northwest Airlines Corporation, a Delaware
      corporation and its successors and assigns.

            "Indemnification Agreement" means the Indemnification Agreement
      dated as of December 2, 1999 among Northwest, the Underwriters and the
      Policy Provider, as the same may be amended, supplemented or otherwise
      modified from time to time in accordance with its terms

            "Indenture" means each of the Trust Indentures entered into by the
      Loan Trustee, and the Owner Trustee or Northwest, pursuant to the Note
      Purchase Agreement, in each case as the same may be amended, supplemented
      or otherwise modified from time to time in accordance with its terms.

                                       12
<PAGE>

            "Indenture Default" means, with respect to any Indenture, any Event
      of Default (as such term is defined in such Indenture) thereunder.

            "Interest Drawing" has the meaning assigned to such term in Section
      3.6(a).

            "Investment Earnings" means investment earnings on funds on deposit
      in the Trust Accounts net of losses and investment expenses of the
      Subordination Agent in making such investments.

            "Lease" means, with respect to any Indenture relating to a Leased
      Aircraft, the "Lease" referred to therein.

            "Leased Aircraft" has the meaning assigned to such term in the
      preliminary statements of this Agreement.

            "Lien" means any mortgage, pledge, lien, charge, claim, disposition
      of title, encumbrance, lease, sublease, sub-sublease or security interest
      of any kind, including, without limitation, any thereof arising under any
      conditional sales or other title retention agreement.

            "Liquidity Event of Default" with respect to any Liquidity Facility,
      has the meaning assigned to such term in such Liquidity Facility.

            "Liquidity Expenses" means all Liquidity Obligations other than (i)
      the principal amount of any Drawings under the Liquidity Facilities and
      (ii) any interest accrued on any Liquidity Obligations.

            "Liquidity Facility" means, at any time, the Class G Liquidity
      Facility, the Class B Liquidity Facility or the Class C Liquidity
      Facility, as applicable.

            "Liquidity Guarantee Agreement" has the meaning assigned to such
      term in the preliminary statements to this Agreement.

            "Liquidity Guarantee Event" has the meaning assigned to such term in
      Section 3.6(c).

            "Liquidity Guarantor" means the guarantor, if any, of a Liquidity
      Provider's obligations under its Liquidity Facility if the short-term
      unsecured debt rating of such Liquidity Provider is based upon the rating
      of such guarantor. Initially, Morgan Stanley Dean Witter & Co. will be a
      Liquidity Guarantor in respect of the obligations of MSCS under the
      Liquidity Facilities.

                                       13
<PAGE>

            "Liquidity Obligations" means all principal, interest, fees and
      other amounts owing to the Liquidity Providers under the Liquidity
      Facilities, the Fee Letter and Section 7 of the Participation Agreements.

            "Liquidity Provider" means, at any time, the Class G Liquidity
      Provider, the Class B Liquidity Provider or the Class C Liquidity
      Provider, as applicable.

            "Loan Trustee" means, with respect to any Indenture, the indenture
      trustee thereunder.

            "LTV Appraisal" means a current fair market appraisal (which may be
      a "desktop" appraisal) performed by any Appraiser or any other nationally
      recognized appraiser on the basis of an arm's-length transaction between
      an informed and willing purchaser under no compulsion to buy and an
      informed and willing seller under no compulsion to sell and both having
      knowledge of all relevant facts.

            "LTV Collateral Amount" of any Leased Aircraft or Owned Aircraft for
      any Class of Certificates on any Distribution Date means the lesser of (i)
      the LTV Ratio for such Class of Certificates multiplied by the Appraised
      Current Market Value of such Aircraft (or with respect to any such
      Aircraft which has suffered an Event of Loss under and as defined in the
      relevant Lease (in the case of a Leased Aircraft) or Indenture (in the
      case of an Owned Aircraft), the amount of the insurance proceeds paid to
      the related Loan Trustee in respect thereof to the extent then held by
      such Loan Trustee (and/or on deposit in the Special Payments Account) or
      payable to such Loan Trustee in respect thereof) and (ii) the outstanding
      principal amount of the Equipment Notes held by the Subordination Agent
      secured by such Aircraft after giving effect to any principal payments of
      such Equipment Notes on or before such Distribution Date.

            "LTV Ratio" means, for the Class G Certificates, 44.3%, for the
      Class B Certificates, 64.1%, and, for the Class C Certificates, 72.2%.

            "Minimum Sale Price" means, with respect to any Aircraft or the
      Equipment Notes issued in respect of such Aircraft, at any time, the
      lesser of (a) 75% of the Appraised Current Market Value of such Aircraft
      and (b) the aggregate outstanding principal amount of such Equipment
      Notes, plus accrued and unpaid interest thereon.

            "Moody's" means Moody's Investors Service, Inc.

            "MSCS" means Morgan Stanley Capital Services, Inc.

            "New Aircraft" has the meaning assigned to such term in the Note
      Purchase Agreement.

                                       14
<PAGE>

            "Non-Controlling Parties" means, collectively, at any time, the
      Policy Provider, the Trustees and the Liquidity Providers which are not
      the Controlling Party at such time.

            "Non-Extended Facility" has the meaning assigned to such term in
      Section 3.6(d).

            "Non-Extension Drawing" has the meaning assigned to such term in
      Section 3.6(d).

            "Non-Performing Equipment Note" means an Equipment Note issued
      pursuant to an Indenture that is not a Performing Equipment Note.

            "Northwest" means Northwest Airlines, Inc., a Minnesota corporation,
      and its successors and assigns.

            "Northwest Bankruptcy Event" means the occurrence and continuation
      of any of the following:

                  (a) the commencement of an involuntary case or other
            proceeding in respect of Northwest in an involuntary case under the
            federal bankruptcy laws, as now or hereafter constituted, 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 Northwest 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 ninety (90) consecutive
            days or an order, judgment or decree shall be entered in any
            proceeding by any court of competent jurisdiction appointing,
            without the consent of Northwest, a receiver, trustee or liquidator
            of Northwest, or of any substantial part of its property, or
            sequestering any substantial part of the property of Northwest and
            any such order, judgment or decree or appointment or sequestration
            shall be final or shall remain in force undismissed, unstayed or
            unvacated for a period of ninety (90) days after the date of entry
            thereof; or

                  (b) the commencement by Northwest of a voluntary case 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 Northwest to the appointment of or taking possession by a
            receiver, liquidator, assignee, trustee, custodian, sequestrator (or
            other similar official) of Northwest or for all or substantially all
            of its property, or the making by Northwest of any assignment for
            the benefit of creditors or the taking by Northwest of any corporate
            action to authorize any of the foregoing.

            "Northwest Provisions" has the meaning provided in Section 9.1(a).

                                       15
<PAGE>

            "Note Purchase Agreement" means the Note Purchase Agreement dated as
      of December 9, 1999 among Northwest, each Trustee, the Escrow Agent, the
      Subordination Agent and the Paying Agent.

            "Notice of Avoided Payment" has the meaning assigned to such term in
      the Policy.

            "Notice of Nonpayment" has the meaning assigned to such term in the
      Policy.

            "NWA Corp." means Northwest Airlines Corporation (formerly known as
      Newbridge Parent Corporation), a Delaware corporation, and its successors
      and assigns.

            "Officer's Certificate" of any Person means a certification signed
      by a Responsible Officer of such Person.

            "Operative Agreements" means this Agreement, the Liquidity
      Facilities, the Policy, the Policy Provider Agreement, the Policy Fee
      Letter, the Fee Letter, the Indentures, the Trust Agreements, the
      Underwriting Agreement, the Financing Agreements, the Leases, the
      Equipment Notes and the Certificates, together with all exhibits and
      schedules included with any of the foregoing and each of the other
      documents and instruments referred to in the definitions of "Operative
      Documents" contained in the Leases or any Owned Aircraft Indenture.

            "Outstanding" means, when used with respect to each Class of
      Certificates, as of the date of determination, all Certificates of such
      Class theretofore authenticated and delivered under the related Trust
      Agreement, except:

                        (i) Certificates of such Class theretofore cancelled by
            the Registrar (as defined in such Trust Agreement) or delivered to
            the Trustee thereunder or such Registrar for cancellation;

                        (ii) Certificates of such Class for which money in the
            full amount required to make the final distribution with respect to
            such Certificates pursuant to Section 11.01 of such Trust Agreement
            has been theretofore deposited with the related Trustee in trust for
            the holders of such Certificates as provided in Section 4.01 of such
            Trust Agreement pending distribution of such money to such
            Certificateholders pursuant to such final distribution payment; and

                        (iii) Certificates of such Class in exchange for or in
            lieu of which other Certificates have been authenticated and
            delivered pursuant to such Trust Agreement;

                                       16
<PAGE>

      provided, however, that in determining whether the holders of the
      requisite Outstanding amount of such Certificates have given any request,
      demand, authorization, direction, notice, consent or waiver hereunder, any
      Certificates owned by Northwest or any of its Affiliates shall be
      disregarded and deemed not to be Outstanding, except that, in determining
      whether such Trustee shall be protected in relying upon any such request,
      demand, authorization, direction, notice, consent or waiver, only
      Certificates that such Trustee knows to be so owned shall be so
      disregarded. Certificates so owned that have been pledged in good faith
      may be regarded as Outstanding if the pledgee establishes to the
      satisfaction of the applicable Trustee the pledgee's right so to act with
      respect to such Certificates and that the pledgee is not Northwest or any
      of its Affiliates.

            "Overdue Scheduled Payment" means any Scheduled Payment which is not
      in fact received by the Subordination Agent within five days of the
      Scheduled Payment Date relating thereto.

            "Owned Aircraft" has the meaning assigned to such term in the
      preliminary statements of this Agreement.

            "Owned Aircraft Indenture" means, with respect to each Owned
      Aircraft, the Indenture pertaining to such Aircraft.

            "Owner Participant" means, with respect to any Indenture pertaining
      to a Leased Aircraft, the Owner Participant (as defined therein) and any
      permitted successor or assign of such Owner Participant.

            "Owner Trustee" means, with respect to any Indenture pertaining to a
      Leased Aircraft, the Owner Trustee (as defined therein) not in its
      individual capacity but solely as trustee under the related owner trust
      agreement, together with any successor trustee appointed pursuant to such
      owner trust agreement.

            "Participation Agreements" means, with respect to each Indenture,
      the Participation Agreement referred to therein, as the same may be
      amended, supplemented or otherwise modified from time to time in
      accordance with its terms.

            "Pass Through Trust Agreement" means the Pass Through Trust
      Agreement, dated as of June 3, 1999 by and among the Guarantor, Northwest
      and the State Street Bank and Trust Company of Connecticut, National
      Association, not in its individual capacity except as expressly provided
      therein, but solely as trustee (in such capacity, together with its
      successors in such capacity, the "Pass Through Trustee").

            "Payee" has the meaning assigned to such term in Section 2.4(e).

                                       17
<PAGE>

            "Paying Agent" means State Street Bank and Trust Company, as paying
      agent under each Escrow and Paying Agent Agreement, together with its
      successors in such capacity.

            "Performing Equipment Note" means an Equipment Note issued pursuant
      to an Indenture with respect to which no payment default has occurred and
      is continuing (without giving effect to any Acceleration thereof);
      provided that in the event of a bankruptcy proceeding involving Northwest
      under Title 11 of the United States Code (the "Bankruptcy Code"), (i) any
      payment default existing during the 60-day period under Section
      1110(a)(1)(A) of the Bankruptcy Code (or such longer period as may apply
      under Section 1110(b) of the Bankruptcy Code) (the "Section 1110 Period")
      shall not be taken into consideration, unless during such period the
      trustee in such proceeding or Northwest refuses to assume or agree to
      perform its obligations under the Lease related to such Equipment Notes
      (in the case of a Leased Aircraft) or under the Indenture related to such
      Equipment Note (in the case of an Owned Aircraft) and (ii) any payment
      default occurring after the date of the order of relief in such proceeding
      shall not be taken into consideration if such payment default is cured
      under Section 1110(a)(1)(B) of the Bankruptcy Code before the later of 30
      days after the date of such default or the expiration of the Section 1110
      Period.

            "Performing Note Deficiency" means any time that less than 65% of
      the then aggregate outstanding principal amount of all Equipment Notes are
      Performing Equipment Notes.

            "Person" means any individual, corporation, limited liability
      company, partnership, joint venture, association, joint-stock company,
      trust, trustee, unincorporated organization or government or any agency or
      political subdivision thereof.

            "Policy" means the MBIA Financial Guaranty Insurance Policy No.
      30951 issued as of the Closing Date, by the Policy Provider in favor of
      the Subordination Agent, for the benefit of the Class G
      Certificateholders, as amended, supplemented or otherwise modified from
      time to time in accordance with its terms.

            "Policy Account" means the Eligible Deposit Account established by
      the Subordination Agent pursuant to Section 2.2(a)(iii).

            "Policy Drawing" means any payment of a claim under the Policy.

            "Policy Expenses" means all amounts (including amounts in respect of
      expenses) owing to the Policy Provider under the Policy Provider
      Agreement, the Participation Agreements or the Note Purchase Agreement
      other than (i) the amount of any Policy Drawing and any interest accrued
      thereon, (ii) reimbursement of and interest on the Liquidity Obligations
      paid to the Liquidity Provider by the Policy Provider, (iii) any

                                       18
<PAGE>

      indemnity payments owed to the Policy Provider and (iv) any Excess
      Reimbursement Obligations.

            "Policy Fee Letter" means the fee letter, dated as of December 9,
      1999 from the Policy Provider to Northwest setting forth the Premium and
      certain other amounts payable in respect of the Policy.

            "Policy Provider" means MBIA Insurance Corporation, or any successor
      thereto, as issuer of the Policy.

            "Policy Provider Agreement" means the Insurance and Indemnity
      Agreement, dated as of the date of issuance of the Certificates, between
      the Subordination Agent, as agent and trustee for the Class G Trustee,
      Northwest and the Policy Provider pursuant to which, among other things,
      the Subordination Agent agrees to reimburse the Policy Provider for
      amounts paid pursuant to claims made under the Policy.

            "Policy Provider Default" means the occurrence of any of the
      following events (a) the Policy Provider fails to make a payment required
      under the Policy in accordance with its terms and such failure remains
      unremedied for two Business Days following the delivery of Written Notice
      of such failure to the Policy Provider or (b) the Policy Provider (i)
      files any petition or commences any case or proceeding under any
      provisions of any federal or state law relating to insolvency, bankruptcy,
      rehabilitation, liquidation or reorganization, (ii) makes a general
      assignment for the benefit of its creditors or (iii) has an order for
      relief entered against it under any federal or state law relating to
      insolvency, bankruptcy, rehabilitation, liquidation or reorganization that
      is final and nonappealable, or (c) a court of competent jurisdiction, the
      New York Insurance Department or another competent regulatory authority
      enters a final and nonappealable order, judgment or decree (i) appointing
      a custodian, trustee, agent or receiver for the Policy Provider or for all
      or any material portion of its property or (ii) authorizing the taking of
      possession by a custodian, trustee, agent or receiver of the Policy
      Provider (or taking of possession of all or any material portion of the
      Policy Provider's property).

            "Policy Provider Election" has the meaning assigned to such term in
      Section 3.7(c).

            "Policy Provider Obligations" means all reimbursement and other
      amounts, including fees and indemnities, due to the Policy Provider under
      the Policy Provider Agreement, but shall not include any interest on
      Policy Drawings except, if the Class G Liquidity Provider has failed to
      honor its obligation to make a payment on any Interest Drawing in respect
      of the Class G Certificates, interest on the portion of any Policy Drawing
      made to cover the shortfall attributable to such failure by the Liquidity
      Provider in an amount equal to the amount of interest that would have
      accrued on such Interest Drawing if such Interest Drawing had been made at
      the interest rate applicable to such Interest Drawing until such Policy
      Drawing has been repaid in full, up to a maximum of

                                       19
<PAGE>

      three such Policy Drawings. For the avoidance of doubt, and subject to the
      effect of payment priorities with respect to Excess Reimbursement
      Obligations, Policy Provider Obligations include reimbursement of and
      interest on the Liquidity Obligations in respect of the Liquidity
      Facilities paid by the Policy Provider to the Liquidity Provider.

            "Policy Provider Rating" shall mean the respective ratings by each
      of the Ratings Agencies of the Policy Provider's financial strength and/or
      claims paying ability in respect of the Policy.

            "Policy Provider Threshold Rating" shall mean a Policy Provider
      Rating of Aaa by Moody's and AAA by Standard & Poor's.

            "Pool Balance" means, with respect to each Trust or the Certificates
      issued by any Trust, as of any date, (i) the original aggregate face
      amount of the Certificates of such Trust less (ii) the aggregate amount of
      all payments made in respect of the Certificates of such Trust or in
      respect of Deposits relating to such Trust other than payments made in
      respect of interest or premium thereon or reimbursement of any costs and
      expenses in connection therewith. The Pool Balance for each Trust or the
      Certificates issued by any Trust as of any Distribution Date shall be
      computed after giving effect to any special distribution with respect to
      unused Deposits, any payment of principal, if any, on the Equipment Notes
      or other Trust Property held in such Trust and the distribution thereof to
      be made on such date and, with respect to the Class G Trust, payments
      under the Policy for the benefit of the Class G Certificateholders (other
      than in respect of the Liquidity Facilities and interest on the Class G
      Certificates).

            "Post-Disposition Balance" has the meaning assigned to such term in
      Section 3.7(b).

            "Preference Amount" has the meaning assigned to such term in the
      Policy.

            "Premium" means the sum of (a) the premium payable in respect of the
      Policy on the Closing Date and on each Distribution Date thereafter in an
      amount equal to 1/2 of the product of (i) the Premium Percentage and (ii)
      with respect to the payment to be made on the Closing Date, the Pool
      Balance of the Class G Certificates on the Closing Date, or with respect
      to the payments to be made on each Distribution Date, the Pool Balance of
      the Class G Certificates on such Distribution Date after giving effect to
      any distributions to be made on such Distribution Date and (b) any
      additional amounts in connection with the prepayment of the Class G
      Certificates as due and when due in accordance with the Policy Fee Letter;
      provided, however, the Premium payable on the Closing Date shall be pro
      rated from the Closing Date to the first Distribution Date (based upon a
      360 day year of twelve 30 day months).

            "Premium Percentage" shall have the meaning set forth in the Policy
      Fee Letter.

                                       20
<PAGE>

            "Proceeding" means any suit in equity, action at law or other
      judicial or administrative proceeding.

            "Provider Incumbency Certificate" has the meaning assigned to such
      term in Section 2.5(c).

            "Provider Representatives" has the meaning assigned to such term in
      Section 2.5(c).

            "PTC Event of Default" means, with respect to each Trust Agreement,
      the failure to pay within 10 Business Days of the due date thereof: (i)
      the outstanding Pool Balance of the applicable Class of Certificates on
      the Final Legal Distribution Date for such Class (unless, in the case of
      the Class G Certificates, the Subordination Agent shall have made a
      drawing under the Policy in an aggregate amount sufficient to pay such
      outstanding Pool Balance and shall have distributed such amount to the
      Class G Trustee) or (ii) interest due on such Certificates on any
      Distribution Date (unless, in the case of the Class G, Class B or Class C
      Certificates, the Subordination Agent shall have made an Interest Drawing
      or a withdrawal from the Cash Collateral Account or a drawing under the
      Policy with respect thereto in an amount sufficient to pay such interest
      and shall have distributed such amount to the Trustee entitled thereto).

            "Rating Agencies" means, collectively, at any time, each nationally
      recognized rating agency which shall have been requested to rate the
      Certificates and which shall then be rating the Certificates. Initially,
      the Rating Agencies shall consist of Moody's and Standard & Poor's.

            "Ratings Confirmation" means, with respect to any action proposed to
      be taken, a written confirmation from each of the Rating Agencies that
      such action would not result in (i) a reduction of the rating for any
      Class of Certificates below the then current rating for such Class of
      Certificates or (ii) a withdrawal or suspension of the rating of any Class
      of Certificates.

            "Regular Distribution Dates" means each April 1 and October 1,
      commencing on April 1, 2000; provided, however, that, if any such day
      shall not be a Business Day, the related distribution shall be made on the
      next succeeding Business Day without additional interest.

            "Replacement Liquidity Facility" means, for any Liquidity Facility,
      an irrevocable revolving credit agreement in substantially the form of the
      initial Liquidity Facility for such Trust, including reinstatement
      provisions or in such other form (which may include a letter of credit) as
      shall permit the Rating Agencies to confirm in writing their respective
      ratings then in effect for the related Certificates (before downgrading of
      such ratings, if any, as a result of the circumstances identified in
      clauses (i) and (ii) of Section

                                       21
<PAGE>

      3.6(c), in each case, without regard to the Policy), and, in the case of
      the Class G Liquidity Facility only, be consented to by the Policy
      Provider, which consent shall not be unreasonably withheld or delayed, in
      a face amount (or an aggregate face amount) equal to the Required Amount
      for such Liquidity Facility and issued by a Replacement Liquidity
      Provider, provided that, if a form of Liquidity Facility that is not
      substantially in the form of the replaced Liquidity Facility is to be
      used, Northwest shall have received a satisfactory opinion of tax counsel
      satisfactory to Northwest with respect to such form of Replacement
      Liquidity Facility (and a copy of such opinion shall be furnished to the
      Subordination Agent).

            "Replacement Liquidity Provider" means a Person having unsecured
      debt ratings which are equal to or higher than the Threshold Rating.

            "Required Amount" means, with respect to each Liquidity Facility and
      each Cash Collateral Account related thereto, for any day, the sum of the
      aggregate amount of interest, calculated at the rate per annum equal to
      the Stated Interest Rate for the related Class of Certificates, that would
      be payable on such Class of Certificates on each of the three successive
      Regular Distribution Dates immediately following such day or, if such day
      is a Regular Distribution Date, on such day and the succeeding two Regular
      Distribution Dates, in each case calculated on the basis of the Pool
      Balance of such Class of Certificates on such date and without regard to
      expected future payments of principal on such Class of Certificates. The
      Pool Balance for purposes of the definition of Required Amount with
      respect to the Class G Liquidity Facility shall, in the event of any
      Policy Provider Election, be deemed to be reduced by an amount (if
      positive) by which (a) the outstanding principal balance of the Series G
      Equipment Note in respect of which such Policy Provider Election has been
      made shall exceed (b) the amount of any Policy Drawings previously paid by
      the Policy Provider in respect of principal on such Series G Equipment
      Note.

            "Responsible Officer" means (i) with respect to the Subordination
      Agent and each of the Trustees, any officer in the corporate trust
      administration department of the Subordination Agent or such Trustee or
      any other officer customarily performing functions similar to those
      performed by the Persons who at the time shall be such officers,
      respectively, or to whom any corporate trust matter is referred because of
      his knowledge of and familiarity with a particular subject and (ii) with
      respect to each Liquidity Provider, any authorized officer or agent of
      such Liquidity Provider.

            "Scheduled Payment" means, with respect to any Equipment Note, (i)
      any payment of principal and interest on such Equipment Note (other than
      an Overdue Scheduled Payment) due from the obligor thereon or (ii) any
      payment of interest on the corresponding Class of Certificates with funds
      drawn under any Liquidity Facility (or under the Policy in the case of any
      Series G Equipment Note), which payment represents the installment of
      principal at the stated maturity of such installment of principal on such

                                       22
<PAGE>

      Equipment Note, the payment of regularly scheduled interest accrued on the
      unpaid principal amount of such Equipment Note, or both; provided that any
      payment of principal of, premium, if any, or interest resulting from the
      redemption or purchase of any Equipment Note shall not constitute a
      Scheduled Payment.

            "Scheduled Payment Date" means, with respect to any Scheduled
      Payment, the date on which such Scheduled Payment is scheduled to be made.

            "Section 2.4(b) Fraction" has the meaning assigned to such term in
      Section 2.4(b)(i).

            "Series B Equipment Notes" means the 9.485% Series B Equipment Notes
      issued pursuant to each Indenture by the related Owner Trustee or
      Northwest, as the case may be, and authenticated by the Loan Trustee
      thereunder, and any such Equipment Notes issued in exchange therefor or
      replacement thereof pursuant to the terms of such Indenture.

            "Series C Equipment Notes" means the 9.152% Series C Equipment Notes
      issued pursuant to each Indenture by the related Owner Trustee or
      Northwest, as the case may be, and authenticated by the Loan Trustee
      thereunder, and any such Equipment Notes issued in exchange therefor or
      replacement thereof pursuant to the terms of such Indenture.

            "Series D Equipment Notes" means the equipment notes, if any, issued
      pursuant to any Indenture by the related Owner Trustee or Northwest, as
      the case may be, and authenticated by the Loan Trustee thereunder, and
      designated as "Series D" thereunder, and any such equipment notes issued
      in exchange therefor or replacement thereof pursuant to the terms of such
      Indenture.

            "Series G Equipment Notes" means the 7.935% Series G Equipment Notes
      issued pursuant to each Indenture by the related Owner Trustee or
      Northwest, as the case may be, and authenticated by the Loan Trustee
      thereunder, and any such Equipment Notes issued in exchange therefor or
      replacement thereof pursuant to the terms of such Indenture.

            "Special Distribution Date" means, with respect to any Special
      Payment, the date chosen by the Subordination Agent pursuant to Section
      2.4(a) or Section 3.7 for the distribution of such Special Payment in
      accordance with this Agreement or the Election Distribution Date;
      provided, however, that, if any such day shall not be a Business Day, the
      related distribution shall be made on the next succeeding Business Day
      without additional interest.

                                       23
<PAGE>

            "Special Payment" means any payment (other than a Scheduled Payment)
      in respect of, or any proceeds of, any Equipment Note, Trust Indenture
      Estate or Collateral, including Overdue Scheduled Payments, payments in
      respect of the redemption or repurchase of any Equipment Note and payments
      in respect of the sale of any Equipment Note to the related Owner Trustee,
      Owner Participant or any other Person.

            "Special Payments Account" means the Eligible Deposit Account
      created pursuant to Section 2.2 as a sub-account to the Collection
      Account.

            "Specified Investments" has the meaning assigned to such term in the
      Pass Through Trust Agreement.

            "Standard & Poor's" means Standard & Poor's Ratings Services, a
      division of McGraw-Hill Inc.

            "State Street of Connecticut" has the meaning assigned to it in the
      preamble to this Agreement.

            "Stated Amount" with respect to any Liquidity Facility, means the
      Maximum Commitment (as defined in such Liquidity Facility) of the
      applicable Liquidity Provider thereunder.

            "Stated Expiration Date" has the meaning specified in Section
      3.6(d).

            "Stated Interest Rate" means (i) with respect to the Class G
      Certificates, 7.935% per annum; (ii) with respect to the Class B
      Certificates, 9.485% per annum, and (iii) with respect to the Class C
      Certificates, 9.152% per annum.

            "Subordination Agent" has the meaning assigned to it in the preamble
      to this Agreement.

            "Subordination Agent Incumbency Certificate" has the meaning
      assigned to such term in Section 2.5(a).

            "Subordination Agent Representatives" has the meaning assigned to
      such term in Section 2.5(a).

            "Tax" and "Taxes" mean any and all taxes, fees, levies, duties,
      tariffs, imposts, and other charges of any kind (together with any and all
      interest, penalties, loss, damage, liability, expense, additions to tax
      and additional amounts or costs incurred or imposed with respect thereto)
      imposed or otherwise assessed by the United States or by any state, local
      or foreign government (or any subdivision or agency thereof) or other
      taxing authority, including, without limitation: taxes or other charges on
      or with respect to

                                       24
<PAGE>

      income, franchises, windfall or other profits, gross receipts, property,
      sales, use, capital stock, payroll, employment, social security, workers'
      compensation, unemployment compensation, or net worth and similar charges;
      taxes or other charges in the nature of excise, withholding, ad valorem,
      stamp, transfer, value added, taxes on goods and services, gains taxes,
      license, registration and documentation fees, customs duties, tariffs, and
      similar charges.

            "Threshold Rating" means the short-term unsecured debt rating of P-1
      by Moody's and A-1 by Standard & Poor's, in the case of the Liquidity
      Provider or Liquidity Guarantor as applicable for each Trust.

            "Treasury Regulations" means regulations, including proposed or
      temporary regulations, promulgated under the Code. References herein to
      specific provisions of proposed or temporary regulations shall include
      analogous provisions of final Treasury Regulations or other successor
      Treasury Regulations.

            "Triggering Event" means (x) the occurrence of an Indenture Default
      under all of the Indentures resulting in a PTC Event of Default with
      respect to the most senior Class of Certificates then Outstanding, (y) the
      Acceleration of all of the outstanding Equipment Notes (provided that,
      with respect to the period prior to the Delivery Period Expiry Date, such
      Equipment Notes have an aggregate principal balance in excess of $110
      million) or (z) the occurrence of a Northwest Bankruptcy Event.

            "Trust" means any of the Class G Trust, the Class B Trust or the
      Class C Trust.

            "Trust Accounts" has the meaning assigned to such term in Section
      2.2(a).

            "Trust Agreement" means any of the Class G Trust Agreement, Class B
      Trust Agreement or Class C Trust Agreement.

            "Trust Indenture Estate" has the meaning assigned to such term in
      each Indenture.

            "Trustee" means any of the Class G Trustee, the Class B Trustee or
      the Class C Trustee.

            "Trustee Incumbency Certificate" has the meaning assigned to such
      term in Section 2.5(b).

            "Trustee Representatives" has the meaning assigned to such term in
      Section 2.5(b).

            "Underwriters" means Morgan Stanley & Co. Incorporated, Chase
      Securities, Inc., Salomon Smith Barney Inc. and U.S. Bancorp Piper Jaffray
      Inc.

                                       25
<PAGE>

            "Underwriting Agreement" means the Underwriting Agreement dated as
      of December 2, 1999, by and among the Underwriters, Northwest and the
      Guarantor, relating to the purchase of the Certificates by the
      Underwriters, as the same may be amended, supplemented or otherwise
      modified from time to time in accordance with its terms.

            "Written Notice" means, from (i) any Trustee, Liquidity Provider or
      the Policy Provider, a written instrument executed by the Designated
      Representative of such Person, and (ii) the Subordination Agent, a written
      instrument executed by a Person designated in the Officer's Certificate of
      the Subordination Agent delivered on the Closing Date. An invoice
      delivered by a Liquidity Provider pursuant to Section 3.1 in accordance
      with its normal invoicing procedures shall constitute Written Notice under
      such Section.

                                   ARTICLE II

                        TRUST ACCOUNTS; CONTROLLING PARTY

            SECTION 2.1 Agreement to Terms of Subordination; Payments from
Monies Received Only. (a) Each Trustee hereby acknowledges and agrees to the
terms of subordination and distribution set forth in this Agreement in respect
of each Class of Certificates and agrees to enforce such provisions and cause
all payments in respect of the Equipment Notes, the Liquidity Facilities and the
Policy to be applied in accordance with the terms of this Agreement. In
addition, each Trustee hereby agrees to cause the Equipment Notes purchased by
the related Trust to be registered in the name of the Subordination Agent or its
nominee, as agent and trustee for such Trustee, to be held in trust by the
Subordination Agent solely for the purpose of facilitating the enforcement of
the subordination and other provisions of this Agreement.

            (b) Each of the Trustees and the Subordination Agent hereby agrees
and, as provided in each Trust Agreement, each Certificateholder, by its
acceptance of a Certificate, each Liquidity Provider, by entering into the
Liquidity Facility to which it is a party, and the Policy Provider, by entering
into the Policy Provider Agreement has agreed that none of the Trustees, Owner
Trustees, Loan Trustees, Owner Participants nor the Subordination Agent is
personally liable to any of them for any amounts payable or any liability under
this Agreement, any Trust Agreement, any Liquidity Facility , the Policy
Provider Agreement or such Certificate, except (in the case of the Subordination
Agent) as expressly provided herein or (in the case of the Trustees) as
expressly provided in each Trust Agreement or (in the case of the Owner Trustees
and the Loan Trustees) as expressly provided in any Operative Agreement.

            SECTION 2.2 Trust Accounts. (a) Upon the execution of this
Agreement, the Subordination Agent shall establish and maintain in its name (i)
the Collection Account as an Eligible Deposit Account, bearing a designation
clearly indicating that the funds deposited therein are held in trust for the
benefit of the Trustees, the Certificateholders, the Liquidity

                                       26
<PAGE>

Providers and the Policy Provider (ii) as a sub-account in the Collection
Account, the Special Payments Account as an Eligible Deposit Account, bearing a
designation clearly indicating that the funds deposited therein are held in
trust for the benefit of the Trustees, the Certificateholders, the Liquidity
Providers and the Policy Provider and (iii) the Policy Account as an Eligible
Deposit Account bearing a designation clearly indicating that the funds
deposited therein are held in trust for the benefit of the Class G Trustee and
the Class G Certificateholders. The Subordination Agent shall establish and
maintain the Cash Collateral Accounts pursuant to and under the circumstances
set forth in Section 3.6(f) hereof. Upon such establishment and maintenance
under Section 3.6(f) hereof, the Cash Collateral Accounts shall, together with
the Collection Account, constitute the "Trust Accounts" hereunder.

            (b) Funds on deposit in the Trust Accounts shall be invested and
reinvested by the Subordination Agent in Eligible Investments selected by the
Subordination Agent if such investments are reasonably available and have
maturities no later than the earlier of (i) 90 days following the date of such
investment and (ii) the Business Day immediately preceding the Regular
Distribution Date or the date of the related distribution pursuant to Section
2.4 hereof, as the case may be, next following the date of such investment;
provided, however, that following the making of a Downgrade Drawing or a
Non-Extension Drawing under any Liquidity Facility, the Subordination Agent
shall invest and reinvest such amounts in Eligible Investments at the direction
of the Liquidity Provider funding such Drawing and the Subordination Agent shall
use reasonable efforts to cause such amounts to be invested in Specified
Investments which yield at least an amount equal to the interest (excluding the
Applicable Margin (as defined in the applicable Liquidity Facility)) that is
payable to such Liquidity Provider in respect of such amounts pursuant to
Section 3.7 of the relevant Liquidity Facility (it being understood that it may
not be feasible to obtain such a yield). Unless otherwise expressly provided in
this Agreement, any Investment Earnings shall be deposited in the Collection
Account when received by the Subordination Agent and shall be applied by the
Subordination Agent in the same manner as the principal amount of such
investment is to be applied and any losses shall be charged against the
principal amount invested, in each case net of the Subordination Agent's
reasonable fees and expenses in making such investments. The Subordination Agent
shall not be liable for any loss resulting from any investment, reinvestment or
liquidation required to be made under this Agreement other than by reason of its
willful misconduct or gross negligence or, with respect to the handling or
transfer of funds, ordinary negligence. Eligible Investments and any other
investment required to be made hereunder shall be held to their maturities
except that any such investment may be sold (without regard to its maturity) by
the Subordination Agent without instructions whenever such sale is necessary to
make a distribution required under this Agreement. Uninvested funds held
hereunder shall not earn or accrue interest.

            (c) The Subordination Agent shall possess all right, title and
interest in all funds on deposit from time to time in the Trust Accounts and in
all proceeds thereof (including all income thereon, except as otherwise provided
herein with respect to Investment Earnings). The Trust Accounts shall be held in
trust by the Subordination Agent under the sole dominion and control of the
Subordination Agent for the benefit of the Trustees, the Certificateholders, the

                                       27
<PAGE>

Liquidity Providers and the Policy Provider, as the case may be. If, at any
time, any of the Trust Accounts ceases to be an Eligible Deposit Account, the
Subordination Agent shall within 10 Business Days (or such longer period, not to
exceed 30 calendar days, to which the Policy Provider and each Rating Agency may
consent) establish a new Collection Account, Special Payments Account, Policy
Account or Cash Collateral Account, as the case may be, as an Eligible Deposit
Account and shall transfer any cash and/or any investments to such new
Collection Account, Special Payments Account, Policy Account or Cash Collateral
Account, as the case may be. So long as the Subordination Agent is an Eligible
Institution, the Trust Accounts shall be maintained with it as Eligible Deposit
Accounts.

            SECTION 2.3 Deposits to the Collection Account and Special Payments
Account. (a) The Subordination Agent shall, upon receipt thereof, deposit in the
Collection Account all Scheduled Payments received by it (other than any
Scheduled Payment which by the express terms hereof is to be deposited to the
Policy Account or a Cash Collateral Account).

            (b) The Subordination Agent shall, on each date when one or more
Special Payments are made to the Subordination Agent as holder of the Equipment
Notes, deposit in the Special Payments Account the aggregate amount of such
Special Payments.

            SECTION 2.4 Distributions of Special Payments. (a) Notice of Special
Payment. Except as provided in Section 2.4(e), upon receipt by the Subordination
Agent, as registered holder of the Equipment Notes, of any notice of a Special
Payment (or, in the absence of any such notice, upon receipt by the
Subordination Agent of a Special Payment), the Subordination Agent shall
promptly give notice thereof to each Trustee, the Liquidity Providers and the
Policy Provider. The Subordination Agent shall promptly calculate the amount of
the redemption or purchase of Equipment Notes or the amount of any Overdue
Scheduled Payment, as the case may be, comprising such Special Payment under the
applicable Indenture or Indentures and shall promptly send to each Trustee and
the Liquidity Provider a Written Notice of such amount and the amount allocable
to each Trust. Such Written Notice shall also set the distribution date for such
Special Payment (a "Special Distribution Date"), which, subject to Section 3.7,
shall be a Business Day which follows the later to occur of (x) the 15th day
after the date of such Written Notice or (y) the date the Subordination Agent
has received or expects to receive such Special Payment. Amounts on deposit in
the Special Payments Account shall be distributed in accordance with Sections
2.4(b) and 2.4(c) hereof, as applicable.

            (b) (i) Redemptions and Purchases of Equipment Notes. So long as no
Triggering Event shall have occurred (whether or not continuing), the
Subordination Agent shall make distributions pursuant to this Section 2.4(b) of
amounts on deposit in the Special Payments Account on account of the redemption
or purchase (including, without limitation, a purchase resulting from the sale
of the Equipment Notes permitted by Article IV hereof) of all of the Equipment
Notes issued pursuant to an Indenture on the Special Distribution Date for such
Special Payment in the following order of priority:

                                       28
<PAGE>

            first, such amount as shall be required to pay (A) the aggregate
      amount of all accrued and unpaid Liquidity Expenses and Policy Expenses
      then in arrears ("past due amounts") plus (B) the product of (x) the
      aggregate amount of all accrued and unpaid Liquidity Expenses and Policy
      Expenses not in arrears to such Special Distribution Date multiplied by
      (y) a fraction, the numerator of which is the aggregate outstanding
      principal amount of Equipment Notes being redeemed, purchased or prepaid
      on such Special Distribution Date and the denominator of which is the
      aggregate outstanding principal amount of all Equipment Notes (the
      "Section 2.4(b) Fraction") ("accrued amounts"), shall be distributed to
      the relevant Liquidity Providers and the Policy Provider first in
      satisfaction of any past due amounts then in satisfaction of the accrued
      amounts, in each case, pari passu on the basis of the amount of Liquidity
      Expenses and Policy Expenses, owed to each Liquidity Provider and the
      Policy Provider;

            second, such amount as shall be required to pay (i) (A) all accrued
      and unpaid interest then in arrears on all Liquidity Obligations (at the
      rate provided in the applicable Liquidity Facility, determined after
      giving effect to payments made by the Policy Provider to each Liquidity
      Provider, if any, in respect of interest on drawings under the Liquidity
      Facilities) plus (B) the product of (x) the aggregate amount of all
      accrued and unpaid interest on all Liquidity Obligations not in arrears to
      such Special Distribution Date (at the rate provided in the applicable
      Liquidity Facility and determined after giving effect to payments made by
      the Policy Provider to each Liquidity Provider, if any, in respect of
      interest on drawings under the Liquidity Facilities) multiplied by (y) the
      Section 2.4(b) Fraction, to the Liquidity Providers pari passu on the
      basis of the amount of such accrued and unpaid interest owed to each
      Liquidity Provider, (ii) if the Class G Liquidity Provider has defaulted
      in its obligation to make any Interest Drawing in respect of the Class G
      Certificates, (A) the aggregate amount of interest accrued on the portion
      of any Policy Drawing made to cover the shortfall attributable to such
      default by the Liquidity Provider at the rate provided in the "except"
      clause of the definition of "Policy Provider Obligations" which are then
      in arrears plus (B) the product of (x) the aggregate amount of all accrued
      and unpaid interest on such Policy Drawings not in arrears to such Special
      Distribution Date multiplied by (y) the Section 2.4(b) Fraction, to the
      Policy Provider and (iii) if the Policy Provider has elected to pay to
      each Liquidity Provider all outstanding drawings and interest owing to
      such Liquidity Provider under its Liquidity Facility pursuant to
      subsection 2.6(c) hereof, the amount of such payment made to the Liquidity
      Providers attributable to such interest accrued on such drawings, shall be
      distributed to the Liquidity Providers and the Policy Provider pari passu;

            third, such amount as shall be required (A) if any Cash Collateral
      Account had been previously funded as provided in Section 3.6(f), to fund
      such Cash Collateral Account up to its Required Amount shall be deposited
      in such Account, (B) if any Liquidity Facility shall become a Downgraded
      Facility or a Non-Extended Facility at a time when unreimbursed Interest
      Drawings under such Liquidity Facility have reduced the Available Amount
      thereunder to zero, to deposit into the related Cash Collateral

                                       29
<PAGE>

      Account an amount equal to such Account's Required Amount shall be
      deposited in such Account, and (C) after application of amounts required
      pursuant to subclause (A) or subclause (B) of this clause "third", (x) to
      pay or reimburse the Liquidity Provider in respect of such Liquidity
      Facility in an amount equal to the amount of any unreimbursed Interest
      Drawings under such Liquidity Facility shall be distributed to such
      Liquidity Provider (other than amounts payable pursuant to clauses first
      or second of this Section 2.4(b) and as determined after giving effect to
      payments made by the Policy Provider to the Liquidity Provider in respect
      of principal of drawings under the Liquidity Facilities) and (y) if the
      Policy Provider has elected to pay to each Liquidity Provider all
      outstanding drawings and interest owing to such Liquidity Provider under
      its Liquidity Facility pursuant to subsection 2.6(c) hereof, to reimburse
      the Policy Provider for the principal amount of such payment made to the
      Liquidity Providers, shall be distributed to such Liquidity Providers and
      the Policy Provider pari passu on the basis of the amounts of all such
      unreimbursed Liquidity Obligations and such payments under the Policy;

            fourth, if, with respect to any particular Liquidity Facility, any
      amounts are to be distributed pursuant to either subclause (A) or (B) of
      clause "third" above, then the Liquidity Provider with respect to such
      Liquidity Facility shall be paid the excess of (x) the aggregate
      outstanding amount of unreimbursed advances (whether or not then due)
      under such Liquidity Facility over (y) the Required Amount for the
      relevant Class, pari passu on the basis of such amounts in respect of each
      Liquidity Provider;

            fifth, such amount as shall be required to pay in full Expected
      Distributions to the holders of Class G Certificates on such Special
      Distribution Date shall be distributed to the Class G Trustee;

            sixth, such amount as shall be required to pay Policy Provider
      Obligations then due (other than amounts payable pursuant to the preceding
      clauses of this Section 2.4(b) and other than any Excess Reimbursement
      Obligations) to the Policy Provider;

            seventh, such amount as shall be required to pay in full Expected
      Distributions to the holders of Class B Certificates on such Special
      Distribution Date shall be distributed to the Class B Trustee;

            eighth, such amount as shall be required to pay in full Expected
      Distributions to the holders of Class C Certificates on such Special
      Distribution Date shall be distributed to the Class C Trustee; and

            ninth, such amount as shall be required to pay Excess Reimbursement
      Obligations to the Policy Provider;

            tenth, the balance, if any, of such Special Payment shall be
      transferred to the Collection Account for distribution in accordance with
      Section 3.2 hereof.

                                       30
<PAGE>

      For the purposes of this Section 2.4(b)(i), clause (x) of the definition
      of "Expected Distributions" shall be deemed to read as follows: "(x)
      accrued, due and unpaid interest on such Certificates excluding interest,
      if any, payable with respect to the Deposits related to such Trust".

            (ii) Upon the occurrence of a Triggering Event (whether or not
      continuing), the Subordination Agent shall make distributions pursuant to
      this Section 2.4(b) of amounts on deposit in the Special Payments Account
      on account of the redemption or purchase of all of the Equipment Notes
      issued pursuant to an Indenture on the Special Distribution Date for such
      Special Payment in accordance with Section 3.3 hereof.

            (c) Other Special Payments. Except as provided in clause (e) below,
any amounts on deposit in the Special Payments Account, other than in respect of
amounts to be distributed pursuant to Section 2.4(b), shall be distributed on
the Special Distribution Date therefor in accordance with Article III hereof.

            (d) Investment of Amounts in Special Payments Account. Any amounts
on deposit in the Special Payments Account prior to the distribution thereof
pursuant to Section 2.4(b) or (c) shall be invested in accordance with Section
2.2(b). Investment Earnings on such investments shall be distributed in
accordance with Section 2.4(b) or (c), as the case may be.

            (e) Certain Payments. The Subordination Agent will distribute
promptly upon receipt thereof (i) any indemnity payment received by it from the
Owner Participant, the Owner Trustee or Northwest in respect of any Trustee, any
Liquidity Provider, the Policy Provider, the Paying Agent, the Depositary or any
Escrow Agent (collectively, the "Payees") and (ii) any compensation (including,
without limitation, any fees payable to any Liquidity Provider under Section
2.03 of any Liquidity Facility or to the Policy Provider under the Policy Fee
Letter) received by it from the Owner Participant, the Owner Trustee or
Northwest under any Operative Agreement in respect of any Payee, directly to the
Payee entitled thereto.

            SECTION 2.5 Designated Representatives. (a) With the delivery of
this Agreement, the Subordination Agent shall furnish to each Liquidity
Provider, the Policy Provider and each Trustee, and from time to time thereafter
may furnish to each Liquidity Provider, the Policy Provider and each Trustee, at
the Subordination Agent's discretion, or upon any Liquidity Provider's, the
Policy Provider's or Trustee's request (which request shall not be made more
than one time in any 12-month period), a certificate (a "Subordination Agent
Incumbency Certificate") of a Responsible Officer of the Subordination Agent
certifying as to the incumbency and specimen signatures of the officers of the
Subordination Agent and the attorney-in-fact and agents of the Subordination
Agent (the "Subordination Agent Representatives") authorized to give Written
Notices on behalf of the Subordination Agent hereunder. Until each Liquidity
Provider, the Policy Provider and each Trustee receives a subsequent
Subordination Agent Incumbency Certificate, it shall be entitled to rely on the
last Subordination Agent Incumbency Certificate delivered to it hereunder.

                                       31
<PAGE>

            (b) With the delivery of this Agreement, each Trustee shall furnish
to the Subordination Agent, and from time to time thereafter may furnish to the
Subordination Agent, at such Trustee's discretion, or upon the Subordination
Agent's request (which request shall not be made more than one time in any
12-month period), a certificate (a "Trustee Incumbency Certificate") of a
Responsible Officer of such Trustee certifying as to the incumbency and specimen
signatures of the officers of such Trustee and the attorney-in-fact and agents
of such Trustee (the "Trustee Representatives") authorized to give Written
Notices on behalf of such Trustee hereunder. Until the Subordination Agent
receives a subsequent Trustee Incumbency Certificate, it shall be entitled to
rely on the last Trustee Incumbency Certificate delivered to it hereunder.

            (c) With the delivery of this Agreement, each Liquidity Provider and
the Policy Provider shall furnish to the Subordination Agent, and from time to
time thereafter may furnish to the Subordination Agent, at such Liquidity
Provider's or Policy Provider's discretion, or upon the Subordination Agent's
request (which request shall not be made more than one time in any 12-month
period), a certificate (each a "Provider Incumbency Certificate") of any
authorized signatory of such Liquidity Provider or Policy Provider certifying as
to the incumbency and specimen signatures of any officer, attorney-in-fact,
agent or other designated representative of such Liquidity Provider or Policy
Provider (in each case, the "Provider Representatives" and, together with the
Subordination Agent Representatives and Trustee Representatives, the "Designated
Representatives") authorized to give Written Notices on behalf of such Liquidity
Provider or Policy Provider hereunder. Until the Subordination Agent receives a
subsequent Provider Incumbency Certificate, it shall be entitled to rely on the
last Provider Incumbency Certificate delivered to it hereunder.

            SECTION 2.6 Controlling Party. (a) The Trustees, the Liquidity
Providers and the Policy Provider hereby agree that, with respect to any
Indenture at any given time, the Loan Trustee thereunder will be directed (i) in
taking, or refraining from taking, any action with respect to such Indenture or
the Equipment Notes issued thereunder, so long as no Indenture Default has
occurred and is continuing thereunder, by the holders of at least a majority of
the outstanding principal amount of such Equipment Notes (provided that, for so
long as the Subordination Agent is the registered holder of the Equipment Notes,
the Subordination Agent shall act with respect to this clause (i) in accordance
with the directions of the Trustees representing holders of Certificates
representing an undivided interest in such principal amount of Equipment Notes,
and (ii) after the occurrence and during the continuance of an Indenture Default
thereunder (which, in the case of an Indenture pertaining to a Leased Aircraft,
has not been cured by the applicable Owner Trustee or the applicable Owner
Participant, if applicable, pursuant to Section 4.03 of such Indenture), in
taking, or refraining from taking, any action with respect to such Indenture or
such Equipment Notes, including exercising remedies thereunder (including
accelerating the Equipment Notes issued thereunder or foreclosing the Lien on
the Aircraft securing such Equipment Notes), by the Controlling Party.

                                       32
<PAGE>

            (b) Subject to subparagraph (c) below, the Person who shall be the
"Controlling Party" with respect to any Indenture shall be: (x) the Policy
Provider until payment of Final Distributions to the holders of Class G
Certificates and no obligations owing to the Policy Provider remain outstanding
or, if a Policy Provider Default has occurred and is continuing, the Class G
Trustee until payment of Final Distributions to the holders of Class G
Certificates; and thereafter, (y) upon payment of Final Distributions to the
holders of Class G Certificates and if either no Policy Provider Obligations
owing to the Policy Provider remain outstanding or a Policy Provider Default has
occurred and is continuing, the Class B Trustee until payment of Final
Distributions to the holders of Class B Certificates; and thereafter (z) upon
payment of Final Distributions to the holders of Class B Certificates, the Class
C Trustee. For purposes of giving effect to the foregoing, the Trustees (other
than the Controlling Party) irrevocably agree (and the Certificateholders (other
than the Certificateholders represented by the Controlling Party) shall be
deemed to agree by virtue of their purchase of Certificates) that the
Subordination Agent, as record holder of the Equipment Notes, shall exercise its
voting rights in respect of the Equipment Notes as directed by the Controlling
Party and any vote so exercised shall be binding upon the Trustees and all
Certificateholders.

            The Subordination Agent shall give written notice to all of the
other parties to this Agreement promptly upon a change in the identity of the
Controlling Party. Each of the parties hereto agrees that it shall not exercise
any of the rights of the Controlling Party at such time as it is not the
Controlling Party hereunder; provided, however, that nothing herein contained
shall prevent or prohibit any Non-Controlling Party from exercising such rights
as shall be specifically granted to such Non-Controlling Party hereunder and
under the other Operative Agreements.

            (c) Notwithstanding the foregoing, at any time after 18 months from
the earliest to occur of (i) the date on which the entire Available Amount under
any Liquidity Facility shall have been drawn (for any reason other than a
Downgrade Drawing or a Non-Extension Drawing) and any amount remains
unreimbursed, (ii) the date on which the entire amount of any Downgrade Drawing
or Non-Extension Drawing has been withdrawn from a Cash Collateral Account to
pay interest on the related Class of Certificates and any amount remains
unreimbursed and (iii) the date on which all Equipment Notes shall have been
Accelerated (provided that with respect to the period prior to the Delivery
Period Expiry Date, such Equipment Notes have an aggregate outstanding principal
balance in excess of $110 million), the Liquidity Provider with the highest
outstanding amount of unreimbursed Liquidity Obligations (so long as such
Liquidity Provider has not defaulted in its obligation to make any advance under
any Liquidity Facility; the "Eligible Provider") shall have the right to elect,
by Written Notice to the Subordination Agent, the Policy Provider and each of
the Trustees, to become the Controlling Party hereunder with respect to any
Indenture at any time from and including the last day of such 18-month period,
provided that if (A) within 15 Business Days after its receipt of any such
written notice from such Liquidity Provider (i) the Policy Provider then meets
the Policy Provider Threshold Rating, (ii) no Policy Provider Default shall have
occurred and be continuing and (iii) the Policy Provider delivers to the
Subordination Agent (with a copy to each of the Trustees and each Liquidity
Provider) (a) an amended policy (x) covering payment of all

                                       33
<PAGE>

drawings and interest thereon owing to the Liquidity Providers (determined
without regard to the availability of funds for the payment thereof by the
Subordination Agent), (y) permitting each Liquidity Provider to demand a payment
directly from the Policy Provider under such amended Policy of such Liquidity
Obligations when and as due under the applicable Liquidity Facility and (z)
prohibiting any amendment or modification of such amended Policy without the
prior written consent of the Liquidity Providers and otherwise in form and
substance reasonable satisfactory to the Liquidity Providers, (b) a legal
opinion to the effect that the Policy as amended constitutes an enforceable
obligation of the Policy Provider and (c) Ratings Confirmations issued by each
Rating Agency with respect thereto or (B) the Policy Provider pays to each
Liquidity Provider all outstanding drawings owing to such Liquidity Provider in
respect of its Liquidity Facility, and interest accrued thereon to such date,
the Policy Provider shall remain the Controlling Party so long as no Policy
Provider Default has occurred and is continuing (in which case the Eligible
Provider, if it so elects and if Liquidity Obligations owing to it remain
outstanding, or if it does not so elect or if no Liquidity Obligations remain
outstanding, the Class G Trustee, shall become the Controlling Party). In
connection with the delivery of any such amended Policy, the parties hereto
agree to enter into an amendment to this Agreement and the Subordination Agent
agrees to enter into an amendment to the Policy Provider Agreement, in each
instance, to make such changes thereto as may be necessary to give effect to the
foregoing (any such amendment to this Agreement to be subject to delivery to
each of the Trustees and the Subordination Agent of a Ratings Confirmation
issued by each Rating Agency with respect thereto and each such amendment to be
in form and substance reasonably satisfactory to each party thereto). In
addition, each Liquidity Provider agrees to request the Policy Drawings
permitted by such amended Policy and that the proceeds thereof be applied to the
Liquidity Obligations owing to it.

            (d) The exercise of remedies by the Controlling Party under this
Agreement shall be expressly limited by Section 4.1(a)(ii) hereof.

            (e) The Controlling Party shall not be entitled to require or
obligate any Non-Controlling Party to provide funds necessary to exercise any
right or remedy hereunder.

                                   ARTICLE III

                    RECEIPT, DISTRIBUTION AND APPLICATION OF
                                AMOUNTS RECEIVED

            SECTION 3.1 Written Notice of Distribution. (a) No later than 3:00
P.M. (New York City time) on the Business Day immediately preceding each
Distribution Date (or Special Distribution Date for purposes of Section 2.4(b)
hereof, as the case may be), each of the following Persons shall deliver to the
Subordination Agent a Written Notice setting forth the following information as
at the close of business on such Business Day:

                                       34
<PAGE>

                  (i) With respect to the Class G Certificates, the Class G
      Trustee shall separately set forth the amounts to be paid in accordance
      with clause "fifth" of Section 3.2 or with clause "fifth" of Section
      2.4(b), as the case may be, hereof;

                  (ii) With respect to the Class B Certificates, the Class B
      Trustee shall separately set forth the amounts to be paid in accordance
      with clause "seventh" of Section 3.2 or with clause "seventh" of Section
      2.4(b), as the case may be, hereof;

                  (iii) With respect to the Class C Certificates, the Class C
      Trustee shall separately set forth the amounts to be paid in accordance
      with clause "eighth" of Section 3.2 or with clause "eighth" of Section
      2.4(b), as the case may be, hereof;

                  (iv) With respect to each Liquidity Facility, the Liquidity
      Provider thereunder shall separately set forth the amounts to be paid in
      accordance with clauses "first", "second", "third" and "fourth" of Section
      3.2 or Section 2.4(b), as the case may be, hereof;

                  (v) The Policy Provider shall set forth the amounts to be paid
      to it in accordance with clauses "first", "second", "third", "sixth" and
      "ninth" of Section 3.2 or 2.4(b), as the case may be, hereof; and

                  (vi) Each Trustee shall set forth the amounts to be paid in
      accordance with clause "tenth" of Section 3.2 hereof.

The notices required under this Section 3.1(a) shall be provided to the
Subordination Agent by the parties referenced therein or by any one of them
pursuant to an agreement between the parties referred to therein, and may state
that, unless there has been a prepayment of the Certificates, such notice is to
remain in effect until any substitute notice or amendment shall be given to the
Subordination Agent by the party providing such notice.

            (b) Following the occurrence of a Triggering Event, the
Subordination Agent shall request the following information from the following
Persons, and each of the following Persons shall, upon the request of the
Subordination Agent, deliver a Written Notice to the Subordination Agent setting
forth for such Person the following information:

                  (i) With respect to the Class G Certificates, the Class G
      Trustee shall separately set forth the amounts to be paid in accordance
      with clauses "first" (relating to reimbursement payments made by the Class
      G Certificateholders) and "seventh" of Section 3.3 hereof;

                  (ii) With respect to the Class B Certificates, the Class B
      Trustee shall separately set forth the amounts to be paid in accordance
      with clauses "first" (relating to

                                       35
<PAGE>

      reimbursement payments made by the Class B Certificateholders) and "ninth"
      of Section 3.3 hereof;

                  (iii) With respect to the Class C Certificates, the Class C
      Trustee shall separately set forth the amounts to be paid in accordance
      with clauses "first" (relating to reimbursement payments made by the Class
      C Certificateholders) and "tenth" of Section 3.3 hereof;

                  (iv) With respect to each Liquidity Facility, the Liquidity
      Provider thereunder shall separately set forth the amounts to be paid in
      accordance with clauses "first", "second", "third", "fourth" and "fifth"
      of Section 3.3 hereof;

                  (v) The Policy Provider shall separately set forth amounts to
      be paid to it in accordance with clauses "first", "second", "third",
      "fourth", "eighth" and "eleventh" of Section 3.3 hereof; and

                  (vi) Each Trustee shall set forth the amounts to be paid in
      accordance with clause "sixth" of Section 3.3 hereof.

            (c) At such time as a Trustee, a Liquidity Provider or the Policy
Provider shall have received all amounts owing to it (and, in the case of a
Trustee, the Certificateholders for which it is acting) pursuant to Section 2.4,
3.2, 3.3 or 3.7 hereof, as applicable, and, in the case of a Liquidity Provider
or the Policy Provider, its commitment under the related Liquidity Facility or
the Policy shall have terminated or expired, such Person shall, by a Written
Notice, so inform the Subordination Agent and each other party to this
Agreement.

            (d) As provided in Section 6.5 hereof, the Subordination Agent shall
be fully protected in relying on any of the information set forth in a Written
Notice provided by any Trustee, any Liquidity Provider or the Policy Provider
pursuant to paragraphs (a) through (c) above and shall have no independent
obligation to verify, calculate or recalculate any amount set forth in any
Written Notice delivered in accordance with such paragraphs.

            (e) Any Written Notice delivered by a Trustee, a Liquidity Provider
or the Policy Provider, as applicable, pursuant to Section 3.1(a), 3.1(b) or
3.1(c) hereof, if made prior to 10:00 A.M. (New York City time) shall be
effective on the date delivered (or if delivered later shall be effective as of
the next Business Day). Subject to the terms of this Agreement, the
Subordination Agent shall as promptly as practicable comply with any such
instructions; provided, however, that any transfer of funds pursuant to any
instruction received after 10:00 A.M. (New York City time) on any Business Day
may be made on the next succeeding Business Day.

            (f) In the event the Subordination Agent shall not receive from any
Person any information set forth in paragraphs (a) or (b) above which is
required to enable the Subordination Agent to make a distribution to such Person
pursuant to Section 3.2 or 3.3 hereof, the

                                       36
<PAGE>

Subordination Agent shall request such information in writing and, failing to
receive any such information, the Subordination Agent shall, after written
notice to such person, not make such distribution(s) to such Person. In such
event, the Subordination Agent shall make distributions pursuant to clauses
"first" through "ninth" of Section 3.2 and clauses "first" through "twelfth" of
Section 3.3 to the extent it shall have sufficient information to enable it to
make such distributions, and shall continue to hold any funds remaining, after
making such distributions, until the Subordination Agent shall receive all
necessary information to enable it to distribute any funds so withheld.

            (g) On such dates (but not more frequently than monthly) as any
Liquidity Provider , the Policy Provider or any Trustee shall request, the
Subordination Agent shall send to such party a written statement reflecting all
amounts on deposit with the Subordination Agent pursuant to Section 3.1(f)
hereof.

            SECTION 3.2 Distribution of Amounts on Deposit in the Collection
Account. Except as otherwise provided in Sections 2.4, 3.1(f), 3.3, 3.4 and
3.6(b), amounts on deposit in the Collection Account (or, in the case of any
amount described in Section 2.4(c), on deposit in the Special Payments Account)
shall be promptly distributed on each Distribution Date (or, in the case of any
amount described in Section 2.4(c), on the Special Distribution Date therefor)
in the following order of priority and in accordance with the information
provided to the Subordination Agent pursuant to Section 3.1(a) hereof:

            first, such amount as shall be required to pay (i) all accrued and
      unpaid Liquidity Expenses owed to each Liquidity Provider and (ii) all
      accrued and unpaid Policy Expenses owed to the Policy Provider, shall be
      distributed to the Liquidity Providers and the Policy Provider pari passu
      on the basis of the amount of Liquidity Expenses and Policy Expenses owed
      to each Liquidity Provider and the Policy Provider;

            second, such amount as shall be required to pay in full (i) the
      aggregate amount of interest accrued on all Liquidity Obligations (at the
      rate provided in the applicable Liquidity Facility determined after giving
      effect to payments made by the Policy Provider to each Liquidity Provider,
      if any, in respect of interest on drawings under the Liquidity Facilities)
      and unpaid shall be distributed to the Liquidity Providers pari passu on
      the basis of the amount of Liquidity Obligations owed to each Liquidity
      Provider, (ii) if the Class G Liquidity Provider has defaulted in its
      obligation to make any Interest Drawing in respect of the Class G
      Certificates, the aggregate amount of interest accrued on the portion of
      any Policy Drawing made to cover the shortfall attributable to such
      default by the Liquidity Provider at the rate provided in the "except"
      clause of the definition of "Policy Provider Obligations" and (iii) if the
      Policy Provider has elected to pay to each Liquidity Provider all
      outstanding drawings and interest owing to such Liquidity Provider under
      its Liquidity Facility pursuant to subsection 2.6(c) hereof, the amount of
      such payment made to the Liquidity Providers attributable to such interest
      accrued on such

                                       37
<PAGE>

      drawings, shall be distributed to the Liquidity Providers and the Policy
      Provider pari passu on the basis of the amounts owing to each;

            third, such amount as shall be required (A) if any Cash Collateral
      Account had been previously funded as provided in Section 3.6(f), to fund
      such Account up to its Required Amount shall be deposited in such Account,
      (B) if any Liquidity Facility shall become a Downgraded Facility or a
      Non-Extended Facility at a time when unreimbursed Interest Drawings under
      such Liquidity Facility have reduced the Available Amount thereunder to
      zero, to deposit into the related Cash Collateral Account an amount equal
      to such Account's Required Amount shall be deposited in such Cash
      Collateral Account, and (C) after applications of the amounts required
      pursuant to subclause (A) or subclause (B) of this clause "third", (x) to
      pay or reimburse the Liquidity Provider in respect of such Liquidity
      Facility in an amount equal to the amount of all Liquidity Obligations
      then due under such Liquidity Facility (other than amounts payable
      pursuant to clause "first" or "second" of this Section 3.2 and as
      determined after giving effect to payments made by the Policy Provider to
      the Liquidity Providers in respect of principal of drawings under the
      Liquidity Facilities) and (y) if the Policy Provider has elected to pay to
      each Liquidity Provider all outstanding drawings and interest owing to
      such Liquidity Provider under its Liquidity Facility pursuant to
      subsection 2.6(c) hereof, the principal amount of such payment made to the
      Liquidity Providers, shall be distributed to such Liquidity Providers and
      the Policy Provider pari passu on the basis of the amounts of all such
      unreimbursed Liquidity Obligations and such payments under the Policy;

            fourth, if, with respect to any particular Liquidity Facility, any
      amounts are to be distributed pursuant to either subclause (A) or (B) of
      clause "third" above, then the Liquidity Provider with respect to such
      Liquidity Facility shall be paid the excess of (x) the aggregate
      outstanding amount of unreimbursed advances (whether or not then due)
      under such Liquidity Facility over (y) the Required Amount for the
      relevant Class, pari passu on the basis of such amounts in respect of each
      Liquidity Provider;

            fifth, such amount as shall be required to pay in full Expected
      Distributions to the holders of the Class G Certificates on such
      Distribution Date shall be distributed to the Class G Trustee;

            sixth, such amount as shall be required to pay the Policy Provider
      all Policy Provider Obligations then due (other than amounts payable
      pursuant to the preceding clauses of this Section 3.2 and other than
      Excess Reimbursement Obligations) to the Policy Provider;

            seventh, such amount as shall be required to pay in full Expected
      Distributions to the holders of the Class B Certificates on such
      Distribution Date shall be distributed to the Class B Trustee;

                                       38
<PAGE>

            eighth, such amount as shall be required to pay in full Expected
      Distributions to the holders of the Class C Certificates on such
      Distribution Date shall be distributed to the Class C Trustee;

            ninth, such amount as shall be required to pay in full any Excess
      Reimbursement Obligations shall be distributed to the Policy Provider;

            tenth, such amount as shall be required to pay in full the aggregate
      unpaid amount of fees and expenses payable as of such Distribution Date to
      the Subordination Agent and each Trustee pursuant to the terms of this
      Agreement and the Trust Agreements, as the case may be, shall be
      distributed to the Subordination Agent and such Trustee; and

            eleventh, the balance, if any, of any such payment remaining
      thereafter shall be held in the Collection Account for later distribution
      in accordance with this Article III (including the priorities set forth
      therein).

            SECTION 3.3 Distribution of Amounts on Deposit Following a
Triggering Event. (a) Except as otherwise provided in Sections 3.1(f) and 3.6(b)
hereof, upon the occurrence of a Triggering Event and at all times thereafter,
all funds in the Collection Account or the Special Payments Account shall be
promptly distributed by the Subordination Agent in the following order of
priority:

            first, such amount as shall be required to reimburse (i) the
      Subordination Agent for any out-of-pocket costs and expenses actually
      incurred by it (to the extent not previously reimbursed) in the protection
      of, or the realization of the value of, the Equipment Notes or any Trust
      Indenture Estate, shall be applied by the Subordination Agent in
      reimbursement of such costs and expenses, (ii) each Trustee for any
      amounts of the nature described in clause (i) above actually incurred by
      it under the applicable Trust Agreement (to the extent not previously
      reimbursed), shall be distributed to such Trustee and (iii) the Policy
      Provider for any amounts of the nature described in clause (i) above
      actually incurred by it (to the extent not previously reimbursed), shall
      be distributed to the Policy Provider, and (iv) any Liquidity Provider,
      Policy Provider or Certificateholder for payments, if any, made by it to
      the Subordination Agent or any Trustee in respect of amounts described in
      clause (i) above, shall be distributed to such Liquidity Provider, Policy
      Provider or to the applicable Trustee for the account of such
      Certificateholder, in each such case, pari passu on the basis of all
      amounts described in clauses (i) through (iv) above;

            second, such amount remaining as shall be required to pay (i) all
      accrued and unpaid Liquidity Expenses owed to each Liquidity Provider and
      (ii) all accrued and unpaid Policy Expenses owed to the Policy Provider
      shall be distributed to each Liquidity Provider and the Policy Provider
      pari passu on the basis of the amount of Liquidity Expenses and Policy
      Expenses owed to each Liquidity Provider, and the Policy Provider;

                                       39
<PAGE>

            third, such amount remaining as shall be required to pay (i) the
      aggregate amount of interest accrued on all Liquidity Obligations (at the
      rate provided in the applicable Liquidity Facility determined after giving
      effect to payments made by the Policy Provider to each Liquidity Provider,
      if any, in respect of interest on drawings under the Liquidity Facilities)
      and unpaid shall be distributed to the Liquidity Providers pari passu on
      the basis of the amount of Liquidity Obligations owed to each Liquidity
      Provider, (ii) if the Class G Liquidity Provider has defaulted in its
      obligation to make any Interest Drawing in respect of the Class G
      Certificates, the aggregate amount of interest accrued on the portion of
      any Policy Drawing made to cover the shortfall attributable to such
      default by the Liquidity Provider at the rate provided in the "except"
      clause of the definition of "Policy Provider Obligations" and (iii) if the
      Policy Provider has elected to pay to each Liquidity Provider all
      outstanding drawings and interest owing to such Liquidity Provider under
      its Liquidity Facility pursuant to subsection 2.6(c) hereof, the amount of
      such payment made to the Liquidity Providers attributable to such interest
      accrued on such drawings, shall be distributed to the Liquidity Providers
      and the Policy Provider pari passu on the basis of the amounts owing to
      each;

            fourth, such amount remaining as shall be required (A) if any Cash
      Collateral Account had been previously funded as provided in Section
      3.6(f), unless (i) a Performing Note Deficiency exists and a Liquidity
      Event of Default shall have occurred and be continuing with respect to the
      relevant Liquidity Facility or (ii) a Final Drawing shall have occurred
      with respect to such Liquidity Facility, to fund such Cash Collateral
      Account up to its Required Amount (less the amount of any repayments of
      Interest Drawings under such Liquidity Facility while subclause (A)(i)
      above is applicable) shall be deposited in such Account, (B) if any
      Liquidity Facility shall become a Downgraded Facility or a Non-Extended
      Facility at a time when unreimbursed Interest Drawings under such
      Liquidity Facility have reduced the Available Amount thereunder to zero,
      unless (i) a Performing Note Deficiency exists and a Liquidity Event of
      Default shall have occurred and be continuing with respect to the relevant
      Liquidity Facility or (ii) a Final Drawing shall have occurred with
      respect to such Liquidity Facility, to deposit into the related Cash
      Collateral Account an amount equal to such Account's Required Amount (less
      the amount of any repayments of Interest Drawings under such Liquidity
      Facility while subclause (B)(i) above is applicable) shall be deposited in
      such Cash Collateral Account, and (C) after application of the amounts
      required pursuant to subclause (A) or subclause (B) of this clause
      "fourth", (x) to pay in full the outstanding amount of all Liquidity
      Obligations then due under such Liquidity Facility (other than amounts
      payable pursuant to clause "second" or "third" of this Section 3.3 and as
      determined after giving effect to payments made by the Policy Provider to
      the Liquidity Providers in respect of principal of drawings under the
      Liquidity Facilities) and (y) if the Policy Provider has elected to pay to
      each Liquidity Provider all outstanding drawings and interest owing to
      such Liquidity Provider under its Liquidity Facility pursuant to
      subsection 2.6(c) hereof, the principal amount of such payment made to the
      Liquidity Providers, shall be distributed to such

                                       40
<PAGE>

      Liquidity Providers and the Policy Provider pari passu on the basis of the
      amounts of all such unreimbursed Liquidity Obligations and such payments
      under the Policy;

            fifth, if, with respect to any particular Liquidity Facility, any
      amounts are to be distributed pursuant to either subclause (A) or (B) of
      clause "fourth" above, then the Liquidity Provider with respect to such
      Liquidity Facility shall be paid the excess of (x) the aggregate
      outstanding amount of unreimbursed advances (whether or not then due)
      under such Liquidity Facility over (y) the Required Amount for the
      relevant Class (less the amount of any repayments of Interest Drawings
      under such Liquidity Facility while subclause (A)(i) or (B)(i), as the
      case may be, of clause "fourth" above is applicable), pari passu on the
      basis of such amounts in respect of each Liquidity Provider;

            sixth, such amount as shall be required to reimburse or pay (i) the
      Subordination Agent for any Tax (other than Taxes imposed on compensation
      paid hereunder), expense, fee, charge or other loss incurred by or any
      other amount payable to the Subordination Agent in connection with the
      transactions contemplated hereby (to the extent not previously
      reimbursed), shall be applied by the Subordination Agent in reimbursement
      of such amount, (ii) each Trustee for any Tax (other than Taxes imposed on
      compensation paid under the applicable Trust Agreement), expense, fee,
      charge, loss or any other amount payable to such Trustee under the
      applicable Trust Agreements (to the extent not previously reimbursed),
      shall be distributed to such Trustee and (iii) each Certificateholder for
      payments, if any, made by it pursuant to Section 5.2 hereof in respect of
      amounts described in clause (i) above, shall be distributed to the
      applicable Trustee for the account of such Certificateholder, in each such
      case, pari passu on the basis of all amounts described in clauses (i)
      through (iii) above;

            seventh, such amount remaining as shall be required to pay in full
      Adjusted Expected Distributions on the Class G Certificates shall be
      distributed to the Class G Trustee;

            eighth, such amount remaining as shall be required to pay the Policy
      Provider Obligations then due to the Policy Provider under the Policy
      Provider Agreement (other than amounts payable pursuant to clauses "first"
      through "fourth" above and other than any Excess Reimbursement
      Obligations) shall be paid to the Policy Provider;

            ninth, such amount remaining as shall be required to pay in full
      Adjusted Expected Distributions on the Class B Certificates shall be
      distributed to the Class B Trustee;

            tenth, such amount remaining as shall be required to pay in full
      Adjusted Expected Distributions on the Class C Certificates shall be
      distributed to the Class C Trustee;

                                       41
<PAGE>

            eleventh, such amount remaining as shall be required to pay any
      Excess Reimbursement Obligations to the Policy Provider;

            twelfth, such amount remaining shall be retained in the Collection
      Account until the immediately succeeding Distribution Date or, if all
      Classes of Certificates shall have been paid in full, shall be distributed
      to the Owner Trustee to the extent that the amount received from the Loan
      Trustees and deposited in the Collection Account exceed the amounts
      described in clauses "first" through "eleventh" above; and

            thirteenth, amount remaining shall be distributed to the
      Certificateholders of the related Trust.

            SECTION 3.4 Other Payments. Any payments received by the
Subordination Agent for which no provision as to the application thereof is made
in this Agreement shall be distributed by the Subordination Agent in the order
of priority specified in Section 3.3 hereof.

            SECTION 3.5 Payments to the Trustees, the Liquidity Providers and
the Policy Provider. Any amounts distributed hereunder to any Liquidity Provider
shall be paid to such Liquidity Provider by wire transfer of funds to the
address such Liquidity Provider shall provide to the Subordination Agent. The
Subordination Agent shall provide a Written Notice of any such transfer to the
applicable Liquidity Provider, as the case may be, at the time of such transfer.
Any amounts distributed hereunder by the Subordination Agent to any Trustee
which shall not be the same institution as the Subordination Agent shall be paid
to such Trustee by wire transfer of funds to the address such Trustee shall
provide to the Subordination Agent.

            SECTION 3.6 Liquidity Facilities. (a) Interest Drawings. If on any
Distribution Date, after giving effect to the subordination provisions of this
Agreement, the Subordination Agent shall not have sufficient funds for the
payment of any amounts due and owing in respect of accrued interest on the Class
G Certificates, the Class B Certificates or the Class C Certificates (at the
Stated Interest Rate for such Class of Certificates), then, prior to 10:00 a.m.
(New York City time) on such Distribution Date, the Subordination Agent shall
request a drawing (each such drawing, an "Interest Drawing") under the Liquidity
Facility with respect to such Class of Certificates (and concurrently with the
making of such request, the Subordination Agent shall give notice to the Policy
Provider of such insufficiency of funds) in an amount equal to the lesser of (i)
an amount sufficient to pay the amount of such accrued interest (at the Stated
Interest Rate for such Class of Certificates) or (ii) the Available Amount under
such Liquidity Facility, and shall pay such amount to the Trustee with respect
to such Class of Certificates in payment of such accrued interest.

            (b) Application of Interest Drawings. Notwithstanding anything to
the contrary contained in this Agreement, (i) all payments received by the
Subordination Agent in respect of an Interest Drawing under the Class G
Liquidity Facility and all amounts withdrawn by the Subordination Agent from the
Class G Cash Collateral Account, and payable in each case to the

                                       42
<PAGE>

Class G Certificateholders, shall be promptly distributed to the Class G Trustee
and (ii) all payments received by the Subordination Agent in respect of an
Interest Drawing under the Class B Liquidity Facility and all amounts withdrawn
by the Subordination Agent from the Class B Cash Collateral Account, and payable
in each case to the Class B Certificateholders, shall be promptly distributed to
the Class B Trustee and (iii) all payments received by the Subordination Agent
in respect of an Interest Drawing under the Class C Liquidity Facility and all
amounts withdrawn by the Subordination Agent from the Class C Cash Collateral
Account, and payable in each case to the Class C Certificateholders, shall be
promptly distributed to the Class C Trustee.

            (c) Downgrade Drawings. If at any time (i) the short-term unsecured
debt rating of any Liquidity Provider (or any Liquidity Guarantor with respect
to any Liquidity Facility), issued by either Rating Agency is lower than the
applicable Threshold Rating or (ii) , if applicable, any guarantee issued by a
Liquidity Guarantor related to any Liquidity Facility ceases to be in full force
and effect or becomes invalid or unenforceable, or the Liquidity Guarantor
denies its liability thereunder (any such occurrence, a "Liquidity Guarantee
Event"), within 30 days after receiving notice of an event identified in clauses
(i) and (ii) (but no later than the expiration date of the Liquidity Facility
issued by the downgraded Liquidity Provider (the "Downgraded Facility")), such
Liquidity Provider may arrange, or the Subordination Agent (in consultation with
Northwest), may arrange for a Replacement Liquidity Provider to issue and
deliver a Replacement Liquidity Facility to the Subordination Agent. If a
Downgraded Facility has not been replaced in accordance with the terms of this
paragraph, the Subordination Agent shall, on such 30th day (or if such 30th day
is not a Business Day, on the next succeeding Business Day) (or, if earlier, the
expiration date of such Downgraded Facility), request a drawing in accordance
with and to the extent permitted by such Downgraded Facility (such drawing, a
"Downgrade Drawing") of all available and undrawn amounts thereunder. Amounts
drawn pursuant to a Downgrade Drawing shall be maintained and invested as
provided in Section 3.6(f) hereof. The Liquidity Provider may also arrange for a
Replacement Liquidity Provider to issue and deliver a Replacement Liquidity
Facility at any time after such Downgrade Drawing so long as such Downgrade
Drawing has not been reimbursed in full to the Liquidity Provider.

            (d) Non-Extension Drawings. If any Liquidity Facility with respect
to any Class of Certificates is scheduled to expire on a date (the "Stated
Expiration Date") prior to the date that is 15 days after the Final Legal
Distribution Date for such Class of Certificates, then, no earlier than the 60th
day and no later than the 40th day prior to the then Stated Expiration Date, the
Subordination Agent shall request that such Liquidity Provider extend the Stated
Expiration Date for a period of 364 days after the Stated Expiration Date
(unless the obligations of such Liquidity Provider thereunder are earlier
terminated in accordance with such Liquidity Facility). The Liquidity Provider
shall advise the Subordination Agent, no earlier than 40 days and no later than
25 days prior to such Stated Expiration Date, whether, in its sole discretion,
it agrees to so extend the Stated Expiration Date. If, on or before the 25th day
prior to the Stated Expiration Date, such Liquidity Facility shall not have been
so extended or replaced in accordance with Section 3.6(e), or if the Liquidity
Provider fails irrevocably and unconditionally to advise the

                                       43
<PAGE>

Subordination Agent on or before the 25th day prior to the Stated Expiration
Date then in effect that such Stated Expiration Date shall be so extended, the
Subordination Agent shall, on such 25th day (or as soon as possible thereafter),
in accordance with and to the extent permitted by the terms of the expiring
Liquidity Facility (a "Non-Extended Facility"), request a drawing under such
expiring Liquidity Facility (such drawing, a "Non-Extension Drawing") of all
available and undrawn amounts thereunder. Amounts drawn pursuant to any
Non-Extension Drawing shall be maintained and invested in accordance with
Section 3.6(f) hereof. Notwithstanding the foregoing provisions of this Section
3.6(d), so long as MSCS is the Liquidity Provider for any Liquidity Facility,
the Stated Expiration Date therefor shall be automatically extended, effective
on the 25th day, prior to such Stated Expiration Date (unless such Stated
Expiration Date is on or after the date that is 15 days after the Final Legal
Distribution Date for the relevant Class of Certificates), for a period of 364
days after such Stated Expiration Date (unless the obligations of such Liquidity
Provider are earlier terminated in accordance with such Liquidity Facility)
without the necessity of any act by the Subordination Agent or such Liquidity
Provider, unless such Liquidity Provider shall advise the Subordination Agent,
prior to such 25th day, that it does not agree to such extension of the Stated
Expiration Date, in which event, the Subordination Agent shall, on such 25th day
(or as soon as possible thereafter), in accordance with and to the extent
permitted by the terms of the Non-Extended Facility, request a Non-Extension
Drawing under the Non-Extended Facility of all available and undrawn amounts
thereunder.

            (e) Issuance of Replacement Liquidity Facility. At any time, the
Subordination Agent may, at its option, in consultation with Northwest, arrange
for a Replacement Liquidity Facility to replace the Liquidity Facility for any
Class of Certificates; provided that, the initial Liquidity Provider may not be
replaced unless there shall have become due to the initial Liquidity Provider
amounts pursuant to Section 3.1, 3.2 or 3.3 of the Liquidity Facilities and the
replacement of the initial Liquidity Provider would reduce or eliminate the
obligation to pay such amounts; provided further that, the Liquidity Provider
may arrange, or the Subordination Agent (in consultation with Northwest) may
arrange, for a Replacement Liquidity Provider pursuant to paragraphs (c) and (d)
of this Section 3.6. In any such consultation, the Subordination Agent shall
accept the recommendations of Northwest in the absence of a good faith reason
not to do so. No such Replacement Liquidity Facility executed in connection
therewith shall become effective and no such Replacement Liquidity Facility
shall be deemed a "Liquidity Facility" under the Operative Agreements, unless
and until (i) the conditions referred to in the immediately following paragraph
shall have been satisfied and (ii) if such Replacement Liquidity Facility shall
materially adversely affect the rights, remedies, interests or obligations of
the Class G Certificateholders, the Class B Certificateholders or the Class C
Certificateholders under any of the Operative Agreements, the applicable Trustee
shall have consented, in writing, to the execution and issuance of such
Replacement Liquidity Facility.

            In connection with the issuance of each Replacement Liquidity
Facility, the Subordination Agent shall (x) prior to the issuance of such
Replacement Liquidity Facility, obtain written confirmation from each Rating
Agency that such Replacement Liquidity Facility will not cause a reduction of
the rating then in effect for any Class of Certificates by such Rating

                                       44
<PAGE>

Agency (without regard to any downgrading of the ratings of any Liquidity
Provider or the Liquidity Guarantor being replaced pursuant to Section 3.6(c)
hereof and without regard to the Policy) and, in the case of the Class G
Liquidity Facility only, the written consent of the Policy Provider (which
consent shall not be unreasonably withheld or delayed), (y) pay all Liquidity
Obligations then owing to the replaced Liquidity Provider (which payment shall
be made first from available funds in the Cash Collateral Account as described
in clause (vii) of Section 3.6(f) hereof and thereafter from any other available
source, including, without limitation, a drawing under the Replacement Liquidity
Facility, it being understood that no Replacement Liquidity Facility shall
become effective (other than insofar as necessary to permit the repayment of
amounts owed to the replaced Liquidity Provider) until all amounts owed to the
replaced Liquidity Provider have been paid) and (z) cause the issuer of the
Replacement Liquidity Facility to deliver the Replacement Liquidity Facility to
the Subordination Agent, together with a legal opinion opining that such
Replacement Liquidity Facility is an enforceable obligation of such Replacement
Liquidity Provider. Upon satisfaction of the conditions set forth in this
Section 3.6(e), (i) the replaced Liquidity Facility shall terminate and (ii)
such Replacement Liquidity Provider shall be deemed to be a Liquidity Provider
with the rights and obligations of a Liquidity Provider hereunder and under the
other Operative Agreements and such Replacement Liquidity Facility shall be
deemed to be a Liquidity Facility hereunder and under the other Operative
Agreements.

            (f) Cash Collateral Accounts; Withdrawals; Investments. In the event
the Subordination Agent shall draw all available amounts under the Class G
Liquidity Facility, the Class B Liquidity Facility or the Class C Liquidity
Facility pursuant to Section 3.6(c), 3.6(d) or 3.6(i), amounts so drawn shall be
deposited by the Subordination Agent in the Class G Cash Collateral Account, the
Class B Cash Collateral Account or the Class C Cash Collateral Account,
respectively. Amounts so deposited shall be invested in Eligible Investments in
accordance with Section 2.2(b) hereof. Investment Earnings on amounts on deposit
in the Cash Collateral Accounts shall be deposited in the Collection Account.
The Subordination Agent shall deliver a written statement to the respective
Liquidity Provider one day prior to each Distribution Date setting forth the
aggregate amount of Investment Earnings held in the applicable Cash Collateral
Accounts as of such date. In addition, from and after the date funds are so
deposited, the Subordination Agent shall make withdrawals from such account as
follows:

                  (i) on each Distribution Date, the Subordination Agent shall,
      to the extent it shall not have received funds to pay accrued and unpaid
      interest on the Class G Certificates (at the Stated Interest Rate for the
      Class G Certificates) from any other source, withdraw from the Class G
      Cash Collateral Account, and pay to the Class G Trustee an amount equal to
      the lesser of (x) an amount necessary to pay accrued and unpaid interest
      (at the Stated Interest Rate for the Class G Certificates) on such Class G
      Certificates and (y) the amount on deposit in the Class G Cash Collateral
      Account;

                  (ii) on each Distribution Date, the Subordination Agent shall,
      to the extent it shall not have received funds to pay accrued and unpaid
      interest on the Class B

                                       45
<PAGE>

      Certificates (at the Stated Interest Rate for the Class B Certificates)
      from any other source, withdraw from the Class B Cash Collateral Account,
      and pay to the Class B Trustee an amount equal to the lesser of (x) an
      amount necessary to pay accrued and unpaid interest (at the Stated
      Interest Rate for the Class B Certificates) on such Class B Certificates
      and (y) the amount on deposit in the Class B Cash Collateral Account;

                  (iii) on each Distribution Date, the Subordination Agent
      shall, to the extent it shall not have received funds to pay accrued and
      unpaid interest on the Class C Certificates (at the Stated Interest Rate
      for the Class C Certificates) from any other source, withdraw from the
      Class C Cash Collateral Account, and pay to the Class C Trustee an amount
      equal to the lesser of (x) an amount necessary to pay accrued and unpaid
      interest (at the Stated Interest Rate for the Class C Certificates) on
      such Class C Certificates and (y) the amount on deposit in the Class C
      Cash Collateral Account;

                  (iv) on each date on which the Pool Balance of the Class G
      Trust shall have been reduced by payments made to the Class G
      Certificateholders pursuant to Section 2.4, 3.2 or 3.3 hereof or pursuant
      to Section 2.03 of the Escrow and Paying Agent Agreement for such Class,
      the Subordination Agent shall withdraw from the Class G Cash Collateral
      Account such amount as is necessary so that, after giving effect to the
      reduction of the Pool Balance on such date (including any such reduction
      resulting from a prior withdrawal of amounts on deposit in the Class G
      Cash Collateral Account on such date), the Required Amount (with respect
      to the Class G Liquidity Facility) will be on deposit in the Class G Cash
      Collateral Account and shall first, pay such amount to the Class G
      Liquidity Provider until the Liquidity Obligations (with respect to the
      Class G Certificates) shall have been paid in full, and second, deposit
      any remaining amount in the Collection Account;

                  (v) on each date on which the Pool Balance of the Class B
      Trust shall have been reduced by payments made to the Class B
      Certificateholders pursuant to Section 2.4, 3.2 or 3.3 hereof or pursuant
      to Section 2.03 of the Escrow and Paying Agent Agreement for such Class,
      the Subordination Agent shall withdraw from the Class B Cash Collateral
      Account such amount as is necessary so that, after giving effect to the
      reduction of the Pool Balance on such date (including any such reduction
      resulting from a prior withdrawal of amounts on deposit in the Class B
      Cash Collateral Account on such date), the Required Amount (with respect
      to the Class B Liquidity Facility) will be on deposit in the Class B Cash
      Collateral Account and shall first, pay such amount to the Class B
      Liquidity Provider until the Liquidity Obligations (with respect to the
      Class B Certificates) shall have been paid in full, and second, deposit
      any remaining amount in the Collection Account;

                  (vi) on each date on which the Pool Balance of the Class C
      Trust shall have been reduced by payments made of the Class C
      Certificateholders pursuant to Section 2.4, 3.2 or 3.3 hereof or pursuant
      to Section 2.03 of the Escrow and Paying Agent Agreement

                                       46
<PAGE>

      for such Class, the Subordination Agent shall withdraw from the Class C
      Cash Collateral Account such amount as is necessary so that, after giving
      effect to the reduction of the Pool Balance on such date (including any
      such reduction resulting from a prior withdrawal of amounts on deposit in
      the Class C Cash Collateral Account on such date), the Required Amount
      (with respect to the Class C Liquidity Facility) will be on deposit in the
      Class C Cash Collateral Account and shall first, pay such amount to the
      Class C Liquidity Provider until the Liquidity Obligations (with respect
      to the Class C Certificates) shall have been paid in full, and second,
      deposit any remaining amount in the Collection Account;

                  (vii) if a Replacement Liquidity Facility for any Class of
      Certificates shall be delivered to the Subordination Agent following the
      date on which funds have been deposited into the Cash Collateral Account
      for such Class of Certificates, the Subordination Agent shall withdraw all
      amounts on deposit in such Cash Collateral Account and shall pay such
      amounts to each replaced Liquidity Provider pari passu until all Liquidity
      Obligations owed to such Person shall have been paid in full, and shall
      deposit any remaining amount in the Collection Account; and

                  (viii) following the payment of Final Distributions with
      respect to any Class of Certificates, on the date on which the
      Subordination Agent shall have been notified by the Liquidity Provider for
      such Class of Certificates that the Liquidity Obligations owed to such
      Liquidity Provider have been paid in full, the Subordination Agent shall
      withdraw all amounts on deposit in the Cash Collateral Account in respect
      of such Class of Certificates and shall deposit such amount in the
      Collection Account.

            (g) Reinstatement. With respect to any Interest Drawing under the
Liquidity Facility for any Trust, upon the reimbursement of the applicable
Liquidity Provider for all or any part of the amount of such Interest Drawing,
together with any accrued interest thereon, the Available Amount of such
Liquidity Facility shall be reinstated by an amount equal to the amount so
reimbursed to the applicable Liquidity Provider, but not to exceed the Required
Amount for such Liquidity Facility; provided, however, that such Liquidity
Facility shall not be so reinstated in part or in full at any time if (x) both
(i) a Triggering Event shall have occurred and (ii) a Performing Note Deficiency
exists or (y) a Final Drawing shall have occurred and be continuing under such
Liquidity Facility. In the event that at any time prior to both the occurrence
of a Triggering Event and the existence of a Performing Note Deficiency funds
are withdrawn from any Cash Collateral Account pursuant to clauses (i), (ii) or
(iii) of Section 3.6(f) hereof, then funds received by the Subordination Agent
prior to both the occurrence of a Triggering Event and the existence of a
Performing Note Deficiency shall be deposited in such Cash Collateral Account as
provided in clause "third" of Section 2.4(b), clause "third" of Section 3.2 or
clause "fourth" of Section 3.3, as applicable, and applied in accordance with
Section 3.6(f) hereof.

                                       47
<PAGE>

            (h) Reimbursement. The amount of each drawing under the Liquidity
Facilities shall be due and payable, together with interest thereon, on the
dates and at the rates, respectively, provided in the Liquidity Facilities.

            (i) Final Drawing. If any action is required under a Liquidity
Facility to be taken by the Subordination Agent in order to make a Final Drawing
thereunder, the Subordination Agent shall not fail to take such action. Upon
receipt of the proceeds of a Final Drawing under the related Liquidity Facility,
the Subordination Agent shall maintain and invest such proceeds in accordance
with Section 3.6(f) hereof.

            (j) Reduction of Stated Amount. Promptly following each date on
which the Required Amount of the Liquidity Facility for a Class of Certificates
is reduced as a result of a distribution to the Certificateholders of such Class
of Certificates, the Subordination Agent shall, if such Liquidity Facility
provides for reductions of the Stated Amount of such Liquidity Facility and if
such reductions are not automatic, request the Liquidity Provider for such Class
of Certificates to reduce such Stated Amount to an amount equal to the Required
Amount with respect to such Liquidity Facility (as calculated by the
Subordination Agent after giving effect to such payment). Each such request
shall be made in accordance with the provisions of the applicable Liquidity
Facility.

            (k) Relation to Subordination Provisions. Interest Drawings under
the Liquidity Facilities and withdrawals from the Cash Collateral Accounts, in
each case, in respect of interest on the Certificates of any Class, will be
distributed to the Trustee for such Class of Certificates, notwithstanding
Sections 3.2, 3.3 and 3.6(h) hereof.

            SECTION 3.7 The Policy. (a) Interest Drawings. If on any Regular
Distribution Date (other than the Final Legal Distribution Date) after giving
effect to the application of available funds in accordance with the priorities
specified in Section 2.4 and Article III, and taking into account the
application of any amounts received by the Escrow Agent in the Class G Paying
Agent Account in respect of accrued interest on the Class G Deposits, any
Drawing paid under the Class G Liquidity Facility in respect of such interest
and any withdrawal of funds from the Class G Cash Collateral Account in respect
of such interest, the Subordination Agent does not then have sufficient funds
available for the payment of all amounts due and owing in respect of accrued
interest on the Class G Certificates at the Stated Interest Rate for Class G
Certificates ("Accrued Class G Interest"), then, prior to 1:00 p.m. (New York
City time) on such Distribution Date, the Subordination Agent (i) shall deliver
a Notice of Nonpayment, as provided in the Policy to the Policy Provider or its
fiscal agent, requesting a Policy Drawing under the Policy (for payment into the
Policy Account) in an amount sufficient to enable the Subordination Agent to pay
such Accrued Class G Interest and (ii) shall pay such amount from the Policy
Account to the Class G Trustee in payment of such Accrued Class G Interest on
such Distribution Date.

            (b) Proceeds Deficiency Drawing. If on any Special Distribution Date
(other than an Election Distribution Date or a Special Distribution Date
established pursuant to clause

                                       48
<PAGE>

(ii) of the third paragraph of Section 3.7(c)) established by the Subordination
Agent by reason of its receipt of a Special Payment (a "Disposition Payment")
constituting the proceeds of any Series G Equipment Note or related Trust
Indenture Estate or Collateral, as the case may be, the Subordination Agent does
not have sufficient funds (after giving effect to the application of available
funds in accordance with the priorities specified in Section 2.4 and Article
III, and taking into account the application of any amounts received by the
Escrow Agent in the Class G Paying Agent Account in respect of accrued interest
on the Class G Deposits, any Drawing paid under the Class G Liquidity Facility
in respect of such interest, any withdrawal of funds in the Class G Cash
Collateral Account in respect of such interest and the amount of such Special
Payment) (i) available for a reduction in the outstanding Pool Balance of the
Class G Certificates to an amount equal to the Post-Disposition Balance (as
defined below) and (ii) to pay interest on the amount of such reduction accrued
at the Stated Interest Rate, then, prior to 1:00 p.m. (New York City time) on
such Special Distribution Date, the Subordination Agent (x) shall deliver a
Notice of Nonpayment, as provided in the Policy (for payment into the Policy
Account) in an amount sufficient to enable the Subordination Agent to pay the
amount of such reduction plus such accrued interest and (y) shall pay such
amount from the Policy Account to the Class G Trustee in payment of such
reduction in the outstanding Pool Balance of the Class G Certificates plus such
accrued interest on such Special Distribution Date. The "Post-Disposition
Balance" of the Pool Balance of the Class G Certificates on any Special
Distribution Date shall be equal to the difference between the Pool Balance of
the Class G Certificates immediately prior to the receipt of the related
Disposition Payment and the outstanding principal amount of the Series G
Equipment Note related to such Disposition Payment.

            (c) No Proceeds Drawing. On the first Business Day that is 18 months
after the last date on which full payment was made on any Series G Equipment
Note (a "Defaulted Series G Equipment Note") as to which there has subsequently
been a failure to pay principal or that has subsequently been accelerated, if
the Subordination Agent has not theretofore made a drawing under the Policy
pursuant to Section 3.7(b), the Subordination Agent shall deliver a Notice of
Nonpayment, as provided in the Policy, to the Policy Provider or its fiscal
agent, requesting a Policy Drawing under the Policy (for the payment into the
Policy Account) in an amount equal to the then outstanding principal amount of
such Defaulted Series G Equipment Note plus accrued interest thereon. The
Subordination Agent shall promptly, but not less than 25 days prior to the such
Business Day, send to the Class G Trustee, the Class B Trustee and the Class C
Trustee, the Liquidity Provider for the Class G Liquidity Facility and the
Policy Provider a Written Notice establishing such Business Day as the date for
the distribution of the proceeds of such Policy Drawing, which date shall
constitute a Special Distribution Date. No later than 1:00 p.m. (New York City
time) on the specified Special Distribution Date the Subordination Agent shall
make the specified Policy Drawing and upon its receipt of the proceeds thereof
pay the amount thereof from the Policy Account to the Class G Trustee in
reduction of the outstanding Pool Balance of the Class G Certificates together
with such accrued and unpaid interest thereon. For the avoidance of doubt, after
the payment in full of such amount under this Section 3.7(c), the Subordination
Agent shall have no right to make any further Policy Drawings

                                       49
<PAGE>

under Section 3.7(c) in respect of such Defaulted Series G Equipment Note except
for a drawing under Section 3.7(e).

            Notwithstanding the foregoing, the Policy Provider has the right at
the end of any such 18-month period, so long as no Policy Provider Default shall
have occurred and be continuing, to elect (the "Policy Provider Election")
instead to pay (a) on such Special Distribution Date an amount equal to the
scheduled principal and interest that came due on such Defaulted Series G
Equipment Note (without regard to the acceleration thereof) but was not paid
during such 18-month period (after giving effect to the application of funds
received from the Class G Liquidity Facility and the Class G Cash Collateral
Account, in each case attributable to such interest) and (b) thereafter, on each
Regular Distribution Date, an amount equal to the scheduled principal and
interest that were to become due on such Defaulted Series G Equipment Note on
the related payment date (without regard to any acceleration thereof) until the
establishment of an Election Distribution Date. Following a Policy Provider
Election with respect to a Defaulted Series G Equipment Note, on any Business
Day (which shall be a Special Distribution Date; each, an "Election Distribution
Date") elected by the Policy Provider upon 20 days' Written Notice to the
Subordination Agent and the Class G Trustee, the Policy Provider may,
notwithstanding the Policy Provider Election, request the Subordination Agent
to, and the Subordination Agent shall, make a Policy Drawing for an amount equal
to the then outstanding principal balance of such Defaulted Series G Equipment
Note (less any Policy Drawings previously paid by the Policy Provider in respect
of principal of such Defaulted Series G Equipment Note) and accrued interest on
such amounts at the Stated Interest Rate for the Class G Certificates from the
previous Regular Distribution Date to such Election Distribution Date.

            Further, following a Policy Provider Election with respect to a
Defaulted Series G Equipment Note, upon either (i) the occurrence and
continuance of a Policy Provider Default or (ii) the receipt by the
Subordination Agent of a Special Payment constituting the Disposition Payment in
respect of such Defaulted Series G Equipment Note or related Trust Indenture
Estate or Collateral, as the case may be, then the Subordination Agent shall on
any Business Day (which shall be a Special Distribution Date) elected by the
Subordination Agent upon 20 days' Written Notice to the Class G Trustee and the
Policy Provider, make a Policy Drawing for an amount equal to the then
outstanding principal balance of such Defaulted Series G Equipment Note (less
any Policy Drawings previously paid by the Policy Provider in respect of
principal of such Equipment Note) and accrued interest on such amounts at the
Stated Interest Rate for the Class G Certificates from the immediately preceding
Regular Distribution Date to such Special Distribution Date. The Subordination
Agent shall make each such drawing referred to in this subparagraph (c) under
the Policy (for payment into the Policy Account) no later than 1:00 p.m. (New
York City time) on the relevant Special Distribution Date and upon its receipt
of the proceeds thereof pay the amount thereof from the Policy Account to the
Class G Trustee in reduction of the outstanding Pool Balance of the Class G
Certificates together with such accrued and unpaid interest thereon.

                                       50
<PAGE>

            In addition, regardless of whether or not the Policy Provider makes
a Policy Provider Election, the Policy Provider shall, at the end of the first
occurring 18-month period described in Section 3.7(c), amend the Policy (if not
already amended to so provide) to provide for the payment to the Class G
Liquidity Provider, the Class B Liquidity Provider and the Class C Liquidity
Provider of interest accruing on the outstanding drawings in respect of the
Class G Liquidity Facility, Class B Liquidity Facility and Class C Liquidity
Facility from and after the end of such 18-month period as and when such
interest becomes due in accordance with such Liquidity Facilities.

            (d) Final Policy Drawing. If on the Final Legal Distribution Date of
the Class G Certificates after giving effect to the application of available
funds in accordance with the priorities specified in Section 2.4 and Article
III, and taking into account the application of any amounts received by the
Escrow Agent in the Class G Paying Agent Account in respect of accrued interest
on the Class G Deposits, any Drawing paid under the Class G Liquidity Facility
in respect of interest included in the Final Distribution and any withdrawal of
funds in the Class G Cash Collateral Account in respect of interest included in
the Final Distribution, the Subordination Agent does not then have sufficient
funds available on such date for the payment in full of the Final Distribution
(calculated as at such date but excluding any accrued and unpaid premium) on the
Class G Certificates then, prior to 1:00 p.m. (New York City time) on such date
the Subordination Agent shall: (i) deliver a Notice of Nonpayment, as provided
in the Policy, to the Policy Provider or its fiscal agent, requesting a Policy
Drawing under the Policy (for payment into the Policy Account) in an amount
equal to the minimum amount sufficient to enable the Subordination Agent to pay
the Final Distribution (calculated as at such date but excluding any accrued and
unpaid premium) on the Class G Certificates, and (ii) shall pay such amount from
the Policy Account to the Class G Trustee in payment of such amount on such
date.

            (e) Avoidance Drawings. If at any time the Subordination Agent shall
have actual knowledge of the issuance of any Final Order, the Subordination
Agent shall promptly give notice thereof to each Trustee, the Liquidity
Providers and the Policy Provider. The Subordination Agent shall thereupon
calculate the relevant Preference Amounts resulting therefrom and shall
promptly: (a) send to the Class G Trustee a Written Notice of such amount and
(b) deliver to the Policy Provider or its fiscal agent, a Notice of Avoided
Payment, together with a copy of the documentation required by the Policy with
respect thereto, requesting a Policy Drawing (for payment to the receiver,
conservator, debtor-in-possession or trustee in bankruptcy and/or to the
Subordination Agent for deposit into the Policy Account) in an amount equal to
the amount of relevant Preference Amount. Such Written Notice shall also set the
date for the distribution of the proceeds of such Policy Drawing which date
shall constitute a Special Distribution Date and shall be the earlier of the
third Business Day that immediately precedes the expiration of the Policy and
the Business Day that immediately follows the 25th day after the date of such
Written Notice. No later than 1:00 p.m. (New York City time) on the specified
Special Distribution Date, the Subordination Agent shall make the specified
Policy Drawing and upon its receipt of the proceeds thereof, pay the amount
thereof from the Payment Account to the Class G Trustee in reinstatement of the
Preference Amount.

                                       51
<PAGE>

            (f) Application of Policy Drawings. Notwithstanding anything to the
contrary contained in this Agreement (including, without limitation, Sections
2.4, 3.2 and 3.3 hereof), all payments received by the Subordination Agent in
respect of a Policy Drawing shall be promptly paid from the Payment Account to
the Class G Trustee for distribution to the Class G Certificateholders.

            (g) Reduction of Outstanding Pool Balance. Promptly following each
date on which the Pool Balance of the Class G Certificates is reduced as a
result of a payment under this Agreement, the Subordination Agent shall inform
the Policy Provider of such reduction. Anything contained herein to the contrary
notwithstanding, no Policy Drawing under clauses (a)(d) of this Section 3.7
shall be for an amount in excess of the outstanding Pool Balance of the Class G
Certificates plus accrued and unpaid interest thereon at the Stated Interest
Rate for the Class G Certificates.

            (h) Resubmission of Notice for Payment. If the Policy Provider at
any time informs the Subordination Agent in accordance with the Policy that a
Notice of Nonpayment or Notice of Avoided Payment submitted by the Subordination
Agent does not satisfy the requirements of the Policy, the Subordination Agent
shall, as promptly as possible after being so informed, submit to the Policy
Provider an amended and revised Notice of Nonpayment or Notice of Avoided
Payment, as the case may be, and shall pay to the Class G Trustee out of the
Policy Account the amount received pursuant to such amended or revised Notice of
Nonpayment or Notice of Avoided Payment, as the case may be, when received.

            (i) Subrogation. The Policy Provider will be subrogated to all of
the rights of the holders of the Class G Certificates to payment on the Class G
Certificates to the extent of the payments made under the Policy as set forth
herein.

                                   ARTICLE IV

                              EXERCISE OF REMEDIES

            SECTION 4.1 Directions from the Controlling Party. (a) (i) Following
the occurrence and during the continuation of an Indenture Default under any
Indenture, the Controlling Party shall direct the Loan Trustee under such
Indenture in the exercise of remedies available to the holders of the Equipment
Notes issued pursuant to such Indenture, including, without limitation, the
ability to vote all such Equipment Notes in favor of declaring all of the unpaid
principal amount of such Equipment Notes and accrued interest thereon to be due
and payable under, and in accordance with, the provisions of such Indenture.
Subject to the Owner Trustees' and the Owner Participants' rights, if any, set
forth in the Indentures with respect to Leased Aircraft to purchase the
Equipment Notes, if the Equipment Notes issued pursuant to any Indenture have
been Accelerated following an Indenture Default with respect thereto, the
Controlling Party may sell, assign, contract to sell or otherwise dispose of and
deliver all (but not

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<PAGE>

less than all) of such Equipment Notes to any Person at public or private sale,
at any location at the option of the Controlling Party, all upon such terms and
conditions as it may reasonably deem advisable in accordance with applicable
law.

                  (ii) Subject to the Owner Trustees' and the Owner
Participants' rights set forth in the Indentures, with respect to Leased
Aircraft, to purchase the Equipment Notes, and notwithstanding the foregoing, so
long as any Certificates remain Outstanding, during the period ending on the
date which is nine months after the earlier of (x) the Acceleration of the
Equipment Notes issued pursuant to any Indenture or (y) the occurrence of a
Northwest Bankruptcy Event, without the consent of each Trustee, (A) no Aircraft
subject to the Lien of such Indenture or such Equipment Notes may be sold if the
net proceeds from such sale would be less than the Minimum Sale Price for such
Aircraft or such Equipment Notes, and (B) with respect to any Leased Aircraft,
the amount and payment dates of rentals payable by Northwest under the Lease for
such Aircraft may not be adjusted, if, as a result of such adjustment, the
discounted present value of all such rentals would be less than 75% of the
discounted present value of the rentals payable by Northwest under such Lease
before giving effect to such adjustment, in each case, using the weighted
average interest rate of the Equipment Notes issued pursuant to such Indenture
as the discount rate.

                  (iii) At the request of the Controlling Party, the
Subordination Agent may from time to time during the continuance of an Indenture
Default (and before the occurrence of a Triggering Event) commission LTV
Appraisals with respect to the related Aircraft.

                  (iv) After a Triggering Event occurs and any Equipment Note
becomes a NonPerforming Equipment Note, the Subordination Agent shall obtain LTV
Appraisals for the Aircraft as soon as practicable and additional LTV Appraisals
on or prior to each anniversary of the date of such initial LTV Appraisals;
provided that, if the Controlling Party reasonably objects to the appraised
value of the Aircraft shown in any such LTV Appraisals, the Controlling Party
shall have the right to obtain or cause to be obtained at its expense substitute
LTV Appraisals (including any LTV Appraisals based upon physical inspection of
the Aircraft).

            (b) The Controlling Party shall take such actions as it may
reasonably deem most effectual to complete the sale or other disposition of such
Aircraft or Equipment Notes. In addition, in lieu of any sale, assignment,
contract to sell or other disposition, the Subordination Agent, on behalf of the
Controlling Party, may maintain possession of such Equipment Notes and continue
to apply monies received in respect of such Equipment Notes in accordance with
Article III hereof. In addition, in lieu of such sale, assignment, contract to
sell or other disposition, or in lieu of such maintenance of possession, the
Controlling Party may instruct the Loan Trustee under such Indenture to
foreclose on the Lien on the related Aircraft or to take any other remedial
action permitted under such Indenture or applicable law.

            SECTION 4.2 Remedies Cumulative. Each and every right, power and
remedy given to the Trustees, the Liquidity Providers, the Policy Provider, the
Controlling Party or the

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<PAGE>

Subordination Agent specifically or otherwise in this Agreement 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, subject always to the terms and conditions
hereof, be exercised from time to time and as often and in such order as may be
deemed expedient by any Trustee, any Liquidity Provider, the Policy Provider,
the Controlling Party or the Subordination Agent, as appropriate, 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 any Trustee, any
Liquidity Provider, the Policy Provider, the Controlling Party or the
Subordination Agent in the exercise of any right, remedy or power or in the
pursuit of any remedy shall impair any such right, power or remedy or be
construed to be a waiver of any default or to be an acquiescence therein.

            SECTION 4.3 Discontinuance of Proceedings. In case any party to this
Agreement (including the Controlling Party in such capacity) shall have
instituted any Proceeding to enforce any right, power or remedy under this
Agreement 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 Person instituting such Proceeding, then and in every such case
each such party shall, subject to any determination in such proceedings, be
restored to its former position and rights hereunder, and all rights, remedies
and powers of such party shall continue as if no such Proceedings had been
instituted.

            SECTION 4.4 Right of Certificateholders to Receive Payments Not to
Be Impaired. Anything in this Agreement to the contrary notwithstanding but
subject to each Trust Agreement, the right of any Certificateholder, Liquidity
Provider or the Policy Provider, respectively, to receive payments pursuant to
Section 2.4, 3.2 or 3.3 hereof when due, or to institute suit for the
enforcement of any such payment on or after the applicable Distribution Date,
shall not be impaired or affected without the consent of such Certificateholder,
such Liquidity Provider or the Policy Provider, respectively.

            SECTION 4.5 Undertaking for Costs. In any suit for the enforcement
of any right or remedy under this Agreement or in any suit against any
Controlling Party or the Subordination Agent for any action taken or omitted by
it as Controlling Party or Subordination Agent, as the case may be, a court in
its discretion may require the filing by any party litigant in the suit of an
undertaking to pay the costs of the suit, and the court in its discretion may
assess reasonable costs, including reasonable attorneys' fees and expenses,
against any party litigant in the suit, having due regard to the merits and good
faith of the claims or defenses made by the party litigant. The provisions of
this Section do not apply to a suit instituted by the Subordination Agent, a
Liquidity Provider, the Policy Provider or a Trustee or a suit by
Certificateholders holding more than 10% of the original principal amount of any
Class of Certificates.

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<PAGE>

                                    ARTICLE V

                       DUTIES OF THE SUBORDINATION AGENT;
                          AGREEMENTS OF TRUSTEES, ETC.

            SECTION 5.1 Notice of Indenture Default or Triggering Event. (a) In
the event the Subordination Agent shall have actual knowledge of the occurrence
of an Indenture Default or a Triggering Event, as promptly as practicable, and
in any event within 10 days after obtaining knowledge thereof, the Subordination
Agent shall transmit by mail to the Rating Agencies, the Liquidity Providers,
the Policy Provider and the Trustees notice of such Indenture Default or
Triggering Event, unless such Indenture Default or Triggering Event shall have
been cured or waived. For all purposes of this Agreement, in the absence of
actual knowledge on the part of a Responsible Officer, the Subordination Agent
shall not be deemed to have knowledge of any Indenture Default or Triggering
Event unless notified in writing by one or more Trustees, one or more Liquidity
Providers, the Policy Provider or one or more Certificateholders.

            (b) Other Notices. The Subordination Agent will furnish to each
Liquidity Provider, the Policy Provider and Trustee, promptly upon receipt
thereof, duplicates or copies of all reports, notices, requests, demands,
certificates, financial statements and other instruments furnished to the
Subordination Agent as registered holder of the Equipment Notes or otherwise in
its capacity as Subordination Agent to the extent the same shall not have been
otherwise directly distributed to such Liquidity Provider, the Policy Provider
or Trustee, as applicable, pursuant to the express provision of any other
Operative Agreement.

            SECTION 5.2 Indemnification. The Subordination Agent shall not be
required to take any action or refrain from taking any action under Section 5.1
(other than the first sentence thereof) or Article IV hereof unless the
Subordination Agent shall have been indemnified (to the extent and in the manner
reasonably satisfactory to the Subordination Agent) against any liability, cost
or expense (including counsel fees and expenses) which may be incurred in
connection therewith. The Subordination Agent shall not be under any obligation
to take any action under this Agreement and nothing contained in this Agreement
shall require the Subordination Agent to expend or risk its own funds or
otherwise incur any financial liability in the performance of any of its duties
hereunder or in the exercise 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
Subordination Agent shall not be required to take any action under Section 5.1
(other than the first sentence thereof) or Article IV hereof, nor shall any
other provision of this Agreement be deemed to impose a duty on the
Subordination Agent to take any action, if the Subordination Agent shall have
been advised by counsel that such action is contrary to the terms hereof or is
otherwise contrary to law.

            SECTION 5.3 No Duties Except as Specified in Intercreditor
Agreement. The Subordination Agent shall not have any duty or obligation to take
or refrain from taking any action under, or in connection with, this Agreement,
except as expressly provided by the terms of

                                       55
<PAGE>

this Agreement; and no implied duties or obligations shall be read into this
Agreement against the Subordination Agent. The Subordination Agent 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 7.1
hereof) promptly take such action as may be necessary to duly discharge all
Liens on any of the Trust Accounts or any monies deposited therein which result
from claims against it in its individual capacity not related to its activities
hereunder or from a breach of its obligations that constitute willful misconduct
or gross negligence hereunder or any other Operative Agreement.

            SECTION 5.4 Notice from the Liquidity Providers and Trustees. If a
Responsible Officer of any Liquidity Provider, the Policy Provider or Trustee
has actual notice of an Indenture Default or a Triggering Event, such Person
shall promptly use its best efforts give notice thereof to all other Liquidity
Providers, the Policy Provider and Trustees and to the Subordination Agent,
provided, however, that no such Person shall have any liability hereunder as a
result of its failure to deliver any such notice.

                                   ARTICLE VI

                             THE SUBORDINATION AGENT

            SECTION 6.1 Authorization; Acceptance of Trusts and Duties. Each of
the Class G Trustee, Class B Trustee and Class C Trustee hereby designates and
appoints the Subordination Agent as the agent and trustee of such Trustee under
the applicable Liquidity Facility and authorizes the Subordination Agent to
enter into the applicable Liquidity Facility as agent and trustee for such
Trustee. Each of the Liquidity Providers, the Policy Provider and the Trustees
hereby designates and appoints the Subordination Agent as the Subordination
Agent under this Agreement.

            The Subordination Agent hereby accepts the duties hereby created and
applicable to it as the Subordination Agent and agrees to perform the same but
only upon the terms of this Agreement and agrees to receive and disburse all
monies received by it in accordance with the terms hereof. The Subordination
Agent shall not be answerable or accountable under any circumstances, except (a)
for its own willful misconduct or gross negligence or, with respect to the
handling or transfer of funds, ordinary negligence, (b) as provided in Section
2.2 hereof and (c) for liabilities that may result from the material inaccuracy
of any representation or warranty of the Subordination Agent made in its
individual capacity in any Operative Agreement. The Subordination Agent shall
not be liable for any error of judgment made in good faith by a Responsible
Officer of the Subordination Agent, unless it is proved that the Subordination
Agent was negligent in ascertaining the pertinent facts.

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<PAGE>

            SECTION 6.2 Absence of Duties. The Subordination Agent shall have no
duty to see to any recording or filing of this Agreement or any other document,
or to see to the maintenance of any such recording or filing.

            SECTION 6.3 No Representations or Warranties as to Documents. The
Subordination Agent in its individual capacity does not make nor shall be deemed
to have made any representation or warranty as to the validity, legality or
enforceability of this Agreement or any other Operative Agreement or as to the
correctness of any statement contained in any thereof, except for the
representations and warranties of the Subordination Agent, made in its
individual capacity, under any Operative Agreement to which it is a party. The
Certificateholders, the Trustees and the Liquidity Providers make no
representation or warranty hereunder whatsoever.

            SECTION 6.4 No Segregation of Monies; No Interest. Any monies paid
to or retained by the Subordination Agent pursuant to any provision hereof and
not then required to be distributed to any Trustee or any Liquidity Provider as
provided in Articles II and III hereof need not be segregated in any manner
except to the extent required by such Articles II and III and by law, and the
Subordination Agent shall not (except as otherwise provided in Section 2.2
hereof) be liable for any interest thereon; provided, however, that any payments
received or applied hereunder by the Subordination Agent shall be accounted for
by the Subordination Agent so that any portion thereof paid or applied pursuant
hereto shall be identifiable as to the source thereof.

            SECTION 6.5 Reliance; Agents; Advice of Counsel. The Subordination
Agent shall not incur 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. As to the Pool
Balance of any Trust as of any date, the Subordination Agent may for all
purposes hereof rely on a certificate signed by any Responsible Officer of the
applicable Trustee, and such certificate shall constitute full protection to the
Subordination Agent for any action taken or omitted to be taken by it in good
faith in reliance thereon. As to any fact or matter relating to the Liquidity
Providers, the Policy Provider or the Trustees the manner of ascertainment of
which is not specifically described herein, the Subordination Agent may for all
purposes hereof rely on a certificate, signed by any Responsible Officer of the
applicable Liquidity Provider, the Policy Provider or Trustee, as the case may
be, as to such fact or matter, and such certificate shall constitute full
protection to the Subordination Agent for any action taken or omitted to be
taken by it in good faith in reliance thereon. The Subordination Agent shall
assume, and shall be fully protected in assuming, that each of the Liquidity
Providers, the Policy Provider and each of the Trustees are authorized to enter
into this Agreement and to take all action to be taken by them pursuant to the
provisions hereof, and shall not inquire into the authorization of each of the
Liquidity Providers and each of the Trustees with respect thereto. In the
administration of the trusts hereunder, the Subordination Agent may execute any
of the trusts or powers hereof and perform its powers and duties hereunder
directly or through agents or attorneys and may consult with counsel,
accountants and other skilled persons to be selected and retained by it, and the
Subordination Agent shall not be liable for the acts or omissions of any agent
appointed with due

                                       57
<PAGE>

care or for anything done, suffered or omitted in good faith by it in accordance
with the advice or written opinion of any such counsel, accountants or other
skilled persons.

            SECTION 6.6 Capacity in Which Acting. The Subordination Agent acts
hereunder solely as agent and trustee herein and not in its individual capacity,
except as otherwise expressly provided in the Operative Agreements.

            SECTION 6.7 Compensation. The Subordination Agent shall be entitled
to reasonable compensation, including expenses and disbursements, for all
services rendered hereunder and shall have a priority claim to the extent set
forth in Article III hereof on all monies collected hereunder for the payment of
such compensation, to the extent that such compensation shall not be paid by
others. The Subordination Agent agrees that it shall have no right against any
Trustee, Liquidity Provider, or the Policy Provider for any fee as compensation
for its services as agent under this Agreement. The provisions of this Section
6.7 shall survive the termination of this Agreement.

            SECTION 6.8 May Become Certificateholder. The institution acting as
Subordination Agent hereunder may become a Certificateholder and have all rights
and benefits of a Certificateholder to the same extent as if it were not the
institution acting as the Subordination Agent.

            SECTION 6.9 Subordination Agent Required; Eligibility. There shall
at all times be a Subordination Agent hereunder which shall be a corporation
organized and doing business under the laws of the United States of America or
of any State or the District of Columbia having a combined capital and surplus
of at least $100,000,000 (or the obligations of which, whether now in existence
or hereafter incurred, are fully and unconditionally guaranteed by a corporation
organized and doing business under the laws of the United States, any State
thereof or of the District of Columbia and having a combined capital and surplus
of at least $100,000,000), if there is such an institution willing and able to
perform the duties of the Subordination Agent hereunder upon reasonable or
customary terms. Such corporation shall be a citizen of the United States and
shall be authorized under the laws of the United States or any State thereof or
of the District of Columbia to exercise corporate trust powers and shall be
subject to supervision or examination by federal, state or District of Columbia
authorities. If such corporation publishes reports of condition at least
annually, pursuant to law or to the requirements of any of the aforesaid
supervising or examining authorities, then, for the purposes of this Section
6.9, the combined capital and surplus of such corporation shall be deemed to be
its combined capital and surplus as set forth in its most recent report of
condition so published.

            In case at any time the Subordination Agent shall cease to be
eligible in accordance with the provisions of this Section, the Subordination
Agent shall resign immediately in the manner and with the effect specified in
Section 8.1.

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<PAGE>

            SECTION 6.10 Money to Be Held in Trust. All Equipment Notes, monies
and other property deposited with or held by the Subordination Agent pursuant to
this Agreement shall be held in trust for the benefit of the parties entitled to
such Equipment Notes, monies and other property. All such Equipment Notes,
monies or other property shall be held in the Trust Department of the
institution acting as Subordination Agent hereunder.

                                   ARTICLE VII

                     INDEMNIFICATION OF SUBORDINATION AGENT

            SECTION 7.1 Scope of Indemnification. The Subordination Agent shall
be indemnified hereunder to the extent and in the manner described in Section
6(c) of the Participation Agreements and Section 7 of the Note Purchase
Agreement. The indemnities contained in such Section 7(c) shall survive the
termination of this Agreement.

                                  ARTICLE VIII

                          SUCCESSOR SUBORDINATION AGENT

            SECTION 8.1 Replacement of Subordination Agent; Appointment of
Successor. The Subordination Agent may resign at any time by so notifying the
Trustees and the Liquidity Providers. The Liquidity Provider or the Controlling
Party may remove the Subordination Agent for cause by so notifying the
Subordination Agent and may appoint a successor Subordination Agent. The
Controlling Party shall remove the Subordination Agent if:

            (1) the Subordination Agent fails to comply with Section 6.9 hereof;

            (2) the Subordination Agent is adjudged bankrupt or insolvent;

            (3) a receiver or other public officer takes charge of the
      Subordination Agent or its property; or

            (4) the Subordination Agent otherwise becomes incapable of acting.

            If the Subordination Agent resigns or is removed or if a vacancy
exists in the office of Subordination Agent for any reason (the Subordination
Agent in such event being referred to herein as the retiring Subordination
Agent), the Controlling Party in consultation with Northwest shall promptly
appoint a successor Subordination Agent.

            Any corporation into which the Subordination Agent may be merged or
converted or with which it may be consolidated, or any corporation resulting
from any merger, conversion

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<PAGE>

or consolidation to which the Subordination Agent shall be a party, or any
corporation to which substantially all the corporate trust business of the
Subordination Agent may be transferred, shall, subject to the terms of Section
6.9 hereof, be the Subordination Agent hereunder and under the other Operative
Agreements to which the Subordination Agent is a party without further act,
except that such Person shall give prompt subsequent notice of such transaction
to the Liquidity Provider and each Trustee,

            A successor Subordination Agent shall deliver a written acceptance
of its appointment as Subordination Agent hereunder to the retiring
Subordination Agent, upon which the resignation or removal of the retiring
Subordination Agent shall become effective, and the successor Subordination
Agent shall have all the rights, powers and duties of the Subordination Agent
under this Agreement. The successor Subordination Agent shall send a written
notice of its succession to the Liquidity Providers, the Policy Provider and the
Trustees. The retiring Subordination Agent shall promptly transfer its rights
under each of the Liquidity Facilities, the Policy and all of the property held
by it as Subordination Agent to the successor Subordination Agent.

            If a successor Subordination Agent does not take office within 60
days after the retiring Subordination Agent resigns or is removed, the retiring
Subordination Agent or one or more of the Trustees may petition any court of
competent jurisdiction for the appointment of a successor Subordination Agent.

            If the Subordination Agent fails to comply with Section 6.9 hereof
(to the extent applicable), one or more of the Trustees or one or more of the
Liquidity Providers, the Policy Provider or Northwest may petition any court of
competent jurisdiction for the removal of the Subordination Agent and the
appointment of a successor Subordination Agent.

            Notwithstanding the foregoing, no resignation or removal of the
Subordination Agent shall be effective unless and until a successor has been
appointed. No appointment of a successor Subordination Agent shall be effective
unless and until the Rating Agencies shall have delivered a Ratings
Confirmation.

                                   ARTICLE IX

                           SUPPLEMENTS AND AMENDMENTS

            SECTION 9.1 Amendments, Waivers, Etc. (a) This Agreement may not be
supplemented, amended or modified without the consent of each Trustee (acting
with the consent of holders of Certificates of the related Class evidencing
interests in the related Trust aggregating not less than a majority in interest
in such Trust or as otherwise authorized pursuant to the relevant Trust
Agreement), the Subordination Agent, the Policy Provider and each Liquidity
Provider; provided, however, that this Agreement may be supplemented, amended or
modified

                                       60
<PAGE>

without the consent of any Trustee if such supplement, amendment or modification
cures an ambiguity or inconsistency or does not materially adversely affect such
Trustee or the holders of the related Class of Certificates; provided further,
however, that, if such supplement, amendment or modification would (x) directly
or indirectly modify or supersede, or otherwise conflict with, Section 2.2(b),
Section 3.6(e), Section 3.6(f) (other than the last sentence thereof),
(collectively, together with this proviso and Section 9.1, the "Northwest
Provisions") or (y) otherwise adversely affect the interests of a potential
Replacement Liquidity Provider or of Northwest with respect to its ability to
replace any Liquidity Facility or with respect to its payment obligations under
any Financing Agreement, Leased or Owned Aircraft Indenture, then such
supplement, amendment or modification shall not be effective without the
additional written consent of Northwest. Notwithstanding the foregoing, without
the consent of each Certificateholder, the Policy Provider and each Liquidity
Provider, no supplement, amendment or modification of this Agreement may (i)
reduce the percentage of the interest in any Trust evidenced by the Certificates
issued by such Trust necessary to consent to modify or amend any provision of
this Agreement or to waive compliance therewith or (ii) modify Section 2.4, 3.2
or 3.3 hereof, relating to the distribution of monies received by the
Subordination Agent hereunder from the Equipment Notes or pursuant to the
Liquidity Facilities or the Policy. Nothing contained in this Section shall
require the consent of a Trustee at any time following the payment of Final
Distributions with respect to the related Class of Certificates.

            (b) In the event that the Subordination Agent, as the registered
holder of any Equipment Notes, receives a request for its consent to any
amendment, modification, consent or waiver under such Equipment Notes, the
Indenture pursuant to which such Equipment Notes were issued, or the related
Lease, Participation Agreement or other related document, (i) if no Indenture
Default shall have occurred and be continuing with respect to such Indenture,
the Subordination Agent shall request directions with respect to each Series of
such Equipment Notes from the Trustee of the Trust which holds such Equipment
Notes, except that so long as the Final Distribution on the Class G Certificates
has not been made or any Policy Provider Obligations remain outstanding and no
Policy Provider Default shall have occurred and be continuing, the Subordination
Agent shall request directions from the Policy Provider rather than the Class G
Trustee with respect to the Class G Equipment Notes held in the Class G Trust,
and shall vote or consent in accordance with the directions of such Trustee or
the Policy Provider and (ii) if any Indenture Default (which, in the case of any
Indenture pertaining to a Leased Aircraft, has not been cured by the applicable
Owner Trustee or the applicable Owner Participant, if applicable, pursuant to
Section 4.03 of such Indenture) shall have occurred and be continuing with
respect to such Indenture, the Subordination Agent will exercise its voting
rights as directed by the Controlling Party, subject to Sections 4.1 and 4.4
hereof; provided that no such amendment, modification or waiver shall, without
the consent of each Liquidity Provider and the Policy Provider, reduce the
amount of rent, supplemental rent or stipulated loss values payable by Northwest
under any Lease or reduce the amount of principal or interest payable by
Northwest under any Equipment Note issued under any Indenture in respect of an
Owned Aircraft

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<PAGE>

            SECTION 9.2 Subordination Agent Protected. If, in the reasonable
opinion of the institution acting as the Subordination Agent hereunder, any
document required to be executed pursuant to the terms of Section 9.1 affects
any right, duty, immunity or indemnity with respect to it under this Agreement,
any Liquidity Facility or the Policy, the Subordination Agent may in its
discretion decline to execute such document.

            SECTION 9.3 Effect of Supplemental Agreements. Upon the execution of
any amendment or supplement hereto pursuant to the provisions hereof, this
Agreement shall be and be deemed to be modified and amended in accordance
therewith and the respective rights, limitations of rights, obligations, duties
and immunities under this Agreement of the parties hereto and beneficiaries
hereof shall thereafter be determined, exercised and enforced hereunder subject
in all respects to such modifications and amendments, and all the terms and
conditions of any such supplemental agreement shall be and be deemed to be part
of the terms and conditions of this Agreement for any and all purposes. In
executing or accepting any supplemental agreement permitted by this Article IX,
the Subordination Agent shall be entitled to receive, and shall be fully
protected in relying upon, an opinion of counsel stating that the execution of
such supplemental agreement is authorized or permitted by this Agreement.

            SECTION 9.4 Notice to Rating Agencies and the Policy Provider.
Promptly following its receipt of each amendment, consent, modification,
supplement or waiver contemplated by this Article IX, the Subordination Agent
shall send a copy thereof to each Rating Agency and the Policy Provider.

            SECTION 9.5 Addition of Class D Trustee. If with respect to any
Aircraft, Class D Certificates are issued, this Agreement shall be amended by
written agreement of Northwest and the Subordination Agent to provide for the
subordination of such Class D Certificates to the Class G Certificates, the
Class B Certificates and the Class C Certificates substantially in the same
manner as the Class C Certificates are subordinated hereunder to the Class B
Certificates and the Class G Certificates. No such amendment shall materially
adversely affect any Trustee, any Liquidity Provider or the Policy Provider. The
amendment to this Agreement to give effect to the issuance of any Class D
Certificates shall include, without limitation:

            (i) the Class D Trust Trustee shall be added as a party to this
      Agreement; and

            (ii) the definitions of "Cash Collateral Account," "Certificate,"
      "Class," "Equipment Notes," "Final Legal Distribution Date," "Liquidity
      Facilities," "Liquidity Provider," "LTV Ratio," "Stated Interest Rate,"
      "Trust," "Trust Agreement" and "Controlling Party" shall be revised, as
      appropriate, to reflect the issuance of the Class D Certificates (and the
      subordination thereof); and

            (iii) the provisions of this Agreement governing payments with
      respect to Certificates and related notices, including, without
      limitation, Sections 2.4, 3.1, 3.2, 3.3

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<PAGE>

      and 3.6(e), shall be revised to provide for distributions on the Class D
      Certificates after payment of all relevant distributions on the Class C
      Certificates.

If with respect to any Aircraft, Series D Equipment Notes are issued to any
Person other than the Class D Trust, this Agreement shall be amended by written
agreement of Northwest and the Subordination Agent to (i) provide for each
holder of a Series D Equipment Note to be bound by the provisions of Section
2.6(a) hereof so that the Controlling Party shall be entitled to direct the Loan
Trustee as provided therein (and such Series D Equipment Notes shall make
effective provision therefor so as to bind each holder thereof to such
provisions of Section 2.6(a) hereof) and (ii) to revise the definitions of
"Controlling Party" and "Equipment Notes", as appropriate, to reflect the
issuance of the Series D Equipment Notes (and the prior rights, as against the
holders of such Series D Equipment Notes, of the Policy Provider, of the Class G
Trustee, the Class B Trustee and the Class C Trustee to be such "Controlling
Party"). No such amendment shall materially adversely affect any Trustee, any
Liquidity Provider or the Policy Provider.

                                    ARTICLE X

                                  MISCELLANEOUS

            SECTION 10.1 Termination of Intercreditor Agreement. Following
payment of Final Distributions with respect to each Class of Certificates and
the payment in full of all Liquidity Obligations to the Liquidity Providers and
all Policy Provider Obligations to the Policy Provider and provided that there
shall then be no other amounts due to the Certificateholders, the Trustees, the
Liquidity Providers, the Subordination Agent and the Policy Provider hereunder
or under the Trust Agreements, and that the commitment of (i) the Liquidity
Providers under the Liquidity Facilities and (ii) the Policy Provider under the
Policy shall have expired or been terminated, this Agreement and the trusts
created hereby shall terminate and this Agreement shall be of no further force
or effect. Except as aforesaid or otherwise provided, this Agreement and the
trusts created hereby shall continue in full force and effect in accordance with
the terms hereof.

            SECTION 10.2 Intercreditor Agreement for Benefit of Trustees,
Liquidity Providers, the Policy Provider and Subordination Agent. Nothing in
this Agreement, whether express or implied, shall be construed to give to any
Person other than the Trustees, the Liquidity Providers, the Subordination Agent
and the Policy Provider any legal or equitable right, remedy or claim under or
in respect of this Agreement.

            SECTION 10.3 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
Agreement to be made, given, furnished or filed shall be in writing, mailed by
certified mail, postage prepaid, or by confirmed telecopy and

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            (i)   if to the Subordination Agent, addressed to it at its office
                  at:

                  State Street Bank and Trust Company
                  Two International Place
                  Boston, Massachusetts  02110
                  Attention: Corporate Trust Department
                  Fax: (612) 726-0655

            (ii)  if to the Trustee, addressed to it at its office at:

                  State Street Bank and Trust Company of Connecticut, National
                        Association
                  225 Asylum Street, Goodwin Square
                  Hartford, Connecticut 06103
                  Attention: Corporate/Muni Department
                  Fax: (860) 244-1889

            (iii) if to any Liquidity Provider, addressed to it at its office
                  at:

                  Morgan Stanley Capital Services, Inc.
                  1585 Broadway
                  New York, New York 10036
                  Attention: Keith Amburgey
                  Fax: (212) 761-0580

            (iv)  if to the Policy Provider, addressed to it at its office at:

                  MBIA Insurance Corporation
                  113 King Street
                  Armonk, New York 10504
                  Attention: Insured Portfolio Management, Structured Finance
                  Fax: (914) 765-3163

Whenever any notice in writing is required to be given by any Trustee or
Liquidity Provider, the Subordination Agent or the Policy Provider to any of the
other of them, such notice shall be deemed given and such requirement satisfied
when such notice is received, if such notice is mailed by certified mail,
postage prepaid or by courier service or if such notice is sent by confirmed
telecopy 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 Agreement.

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            SECTION 10.4 Severability. Any provision of this Agreement 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, and any such prohibition or
unenforceability in any jurisdiction shall not invalidate or render
unenforceable such provision in any other jurisdiction.

            SECTION 10.5 No Oral Modifications or Continuing Waivers. No terms
or provisions of this Agreement may be changed, waived, discharged or terminated
orally, but only by an instrument in writing signed by the party or other Person
against whom enforcement of the change, waiver, discharge or termination is
sought and any other party or other Person whose consent is required pursuant to
this Agreement and any waiver of the terms hereof shall be effective only in the
specific instance and for the specific purpose given.

            SECTION 10.6 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 successors and assigns of each, all as herein provided.

            SECTION 10.7 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 10.8 Counterpart Form. This Agreement may be executed by the
parties hereto in separate 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 agreement.

            SECTION 10.9 Subordination. (a) As between the Liquidity Providers
and the Policy Provider, on the one hand, and the Trustees and the
Certificateholders, on the other hand, this Agreement shall be a subordination
agreement for purposes of Section 510 of the United States Bankruptcy Code, as
amended from time to time.

            (b) Notwithstanding the provisions of this Agreement, if prior to
the payment in full to the (i) Liquidity Providers of all Liquidity Obligations
then due and payable and (ii) Policy Provider of all Policy Provider Obligations
then due and payable, any party hereto shall have received any payment or
distribution in respect of Equipment Notes or any other amount under the
Indentures or other Operative Agreements which, had the subordination provisions
of this Agreement been properly applied to such payment, distribution or other
amount, would not have been distributed to such Person, then such payment,
distribution or other amount shall be received and held in trust by such Person
and paid over or delivered to the Subordination Agent for application as
provided herein.

            (c) If any Trustee, any Liquidity Provider, the Subordination Agent
or the Policy Provider receives any payment in respect of any obligations owing
hereunder (or, in the case of the Liquidity Providers or the Policy Provider, in
respect of the Liquidity Obligations or the

                                       65
<PAGE>

Policy Provider Obligations, as the case may be), which is subsequently
invalidated, declared preferential, set aside and/or required to be repaid to a
trustee, receiver or other party, then, to the extent of such payment, such
obligations (or, in the case of the Liquidity Providers or the Policy Provider,
such Liquidity Obligations or the Policy Provider Obligations, as the case may
be) intended to be satisfied shall be revived and continue in full force and
effect as if such payment had not been received.

            (d) The Trustees (on behalf of themselves and the holders of
Certificates), the Liquidity Providers, the Subordination Agent and the Policy
Provider confirm that the payment priorities specified in Sections 2.4, 3.2 and
3.3 shall apply in all circumstances, notwithstanding the fact that the
obligations owed to the Trustees and the holders of Certificates are secured by
certain assets and the Liquidity Obligations and Policy Provider Obligations may
not be so secured. The Trustees expressly agree (on behalf of themselves and the
holders of Certificates) not to assert priority over the holders of Liquidity
Obligations or Policy Provider Obligations due to their status as secured
creditors in any bankruptcy, insolvency or other legal proceeding.

            (e) Each of the Trustees (on behalf of themselves and the holders of
Certificates), the Liquidity Providers, the Subordination Agent and the Policy
Provider may take any of the following actions without impairing its rights
under this Agreement:

                  (i) obtain a lien on any property to secure any amounts owing
      to it hereunder, including, in the case of the Liquidity Providers and the
      Policy Provider, the Liquidity Obligations or the Policy Provider
      Obligations, as the case may be,

                  (ii) obtain the primary or secondary obligation of any other
      obligor with respect to any amounts owing to it hereunder, including, in
      the case of the Liquidity Providers and the Policy Provider, any of the
      Liquidity Obligations or the Policy Provider Obligations, as the case may
      be,

                  (iii) renew, extend, increase, alter or exchange any amounts
      owing to it hereunder, including, in the case of the Liquidity Providers
      and the Policy Provider, any of the Liquidity Obligations or the Policy
      Provider Obligations, as the case may be, or release or compromise any
      obligation of any obligor with respect thereto,

                  (iv) refrain from exercising any right or remedy, or delay in
      exercising such right or remedy, which it may have, or

                  (v) take any other action which might discharge a subordinated
      party or a surety under applicable law;

provided, however, that the taking of any such actions by any of the Trustees,
the Liquidity Providers, the Policy Provider or the Subordination Agent shall
not prejudice the rights or adversely affect the obligations of any other party
under this Agreement.

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<PAGE>

            SECTION 10.10 Governing Law. THIS AGREEMENT SHALL IN ALL RESPECTS BE
GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAW OF THE STATE OF NEW YORK,
INCLUDING ALL MATTERS OF CONSTRUCTION, VALIDITY AND PERFORMANCE.

            SECTION 10.11 Submission to Jurisdiction; Waiver of Jury Trial;
Waiver of Immunity. (a) Each of the parties hereto hereby irrevocably and
unconditionally:

            (i) submits for itself and its property in any legal action or
      proceeding relating to this Agreement or any other Operative Agreement, or
      for recognition and enforcement of any judgment in respect hereof or
      thereof, to the nonexclusive general jurisdiction of the courts of the
      State of New York, the courts of the United States of America for the
      Southern District of New York, and the appellate courts from any thereof;

            (ii) consents that any such action or proceedings may be brought in
      such courts, and waives any objection that it may now or hereafter have
      that the venue of any such action or proceeding was brought in an
      inconvenient court and agrees not to plead or claim the same;

            (iii) agrees that service of process in any such action or
      proceeding may be effected by mailing a copy thereof by registered or
      certified mail (or any substantially similar form and mail), postage
      prepaid, to each party hereto at its address set forth in Section 10.3
      hereof, or at such other address of which the other parties shall have
      been notified pursuant thereto; and

            (iv) agrees that nothing herein shall affect the right to effect
      service of process in any other manner permitted by law or shall limit the
      right to sue in any other jurisdiction.

            (b) EACH OF THE PARTIES HERETO HEREBY AGREES TO WAIVE ITS RESPECTIVE
RIGHTS TO A JURY TRIAL OF ANY CLAIM OR CAUSE OF ACTION BASED UPON OR ARISING OUT
OF THIS AGREEMENT OR ANY DEALINGS BETWEEN THEM RELATING TO THE SUBJECT MATTER OF
THIS AGREEMENT AND THE RELATIONSHIP THAT IS BEING ESTABLISHED, including,
without limitation, contract claims, tort claims, breach of duty claims and all
other common law and statutory claims. Each of the parties warrants and
represents that it has reviewed this waiver with its legal counsel, and that it
knowingly and voluntarily waives its jury trial rights following consultation
with such legal counsel. THIS WAIVER IS IRREVOCABLE, AND CANNOT BE MODIFIED
EITHER ORALLY OR IN WRITING, AND THIS WAIVER SHALL APPLY TO ANY SUBSEQUENT
AMENDMENTS, RENEWALS, SUPPLEMENTS OR MODIFICATIONS TO THIS AGREEMENT.

                                       67
<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, and acknowledge that this Agreement has
been made and delivered in the City of New York, and this Agreement has become
effective only upon such execution and delivery.

                        (Signature Pages to Follow)

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<PAGE>

                             STATE STREET BANK AND TRUST
                                   COMPANY OF CONNECTICUT,
                                   NATIONAL ASSOCIATION, not in its
                                   individual capacity but solely as Trustee for
                                   each of the Trusts

                             By:______________________________________
                               Name:
                               Title:

                             MORGANSTANLEY CAPITAL SERVICES,
                                   INC., as Class G Liquidity Provider, Class B
                                   Liquidity Provider and Class C Liquidity
                                   Provider

                             By:______________________________________
                               Name:
                               Title:

                             STATE STREET BANK AND TRUST
                                   COMPANY, not in its individual capacity
                                   except as expressly set forth herein but
                                   solely as Subordination Agent and trustee

                             By:______________________________________
                               Name:
                               Title:

                                       69
<PAGE>

                             MBIA INSURANCE CORPORATION
                                   as Policy Provider

                             By:______________________________________
                               Name:
                               Title:

                                       70

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