Document:

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                                                                CONFORMED COPY
                                                                --------------

                          ENGINE WARRANTY ASSIGNMENT
                                   [N586ML]

                                    between

                          MIDWAY AIRLINES CORPORATION

                                      and

               FIRST UNION TRUST COMPANY, NATIONAL ASSOCIATION,
                        not in its individual capacity
                          but solely as Owner Trustee

                                      and

                           GENERAL ELECTRIC COMPANY

                  ENGINE MANUFACTURER'S CONSENT AND AGREEMENT
<PAGE>

          THIS ENGINE WARRANTY ASSIGNMENT [N586ML] is made as of this 10/th/ day
of December, 1999 between MIDWAY AIRLINES CORPORATION, a Delaware corporation
(the "Assignor") and FIRST UNION TRUST COMPANY, NATIONAL ASSOCIATION, a national
banking association, not in its individual capacity but solely as Owner Trustee
(the "Assignee").

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

          WHEREAS, the Assignor and General Electric Company (the "Engine
Manufacturer") are parties to the General Terms Agreement, providing, among
other things, for product support, including warranties for the support, of the
Engines covered thereby and related equipment given to the Assignor by the
Engine Manufacturer;

          WHEREAS, the Assignee wishes to acquire certain rights and interests
in and to warranties relating to the Engines and the Assignor, on the terms and
conditions hereinafter set forth, is willing to assign to the Assignee such
rights and interests of the Assignor in and to such warranties, and the Assignee
is willing to accept such assignment, as hereinafter set forth; and

          WHEREAS, the Engine Manufacturer is willing to execute and deliver to
the Assignee an Engine Manufacturer's Consent and Agreement (the "Engine
Manufacturer's Consent and Agreement") to the provisions hereof in substantially
the form of the Annex hereto.

          IT IS HEREBY AGREED as follows:

          In consideration of the mutual covenants herein contained and of the
Assignee's agreement in the Purchase Agreement Assignment to pay the purchase
price for the Aircraft on the terms and conditions therein stated, the parties
hereto agree as follows:

            1. Definitions
               -----------

          1.1  For all purposes of this Assignment, except as otherwise
expressly provided or unless the context otherwise requires, the following terms
shall have the following meanings:

          "Aircraft" means One Canadair Regional Jet Aircraft Model CL-600-2B19
           --------
bearing manufacturer's serial number 7341 including two General Electric CF34-
3B1 turbofan engines bearing manufacturer's serial numbers GE-E-872580 and GE-E-
872581 respectively (collectively the "Engines"), installed on such aircraft at
the time of delivery.

          "Aircraft Purchase Agreement" means the Bombardier Regional Aircraft
           ---------------------------
Division Purchase Agreement No. PA-0393 dated September 17, 1997, as amended,
between the Assignor

                                       2
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and the Manufacturer (including all exhibits thereto, together with all letter
agreements entered into that by their terms constitute part of any such Aircraft
Purchase Agreement) whereby, inter alia, the Manufacturer has agreed to sell and
the Assignor has agreed to purchase the Aircraft.

          "CF34 Warranty" means the CF34 Turbofan Engine Airline Operator
           -------------
Warranty from the Engine Manufacturer, dated May 22, 1990, as contained in
Exhibit B of the General Terms Agreement.

          "Engine Manufacturer" means General Electric Company, a New York
           -------------------
corporation, and its successors and assigns.

          "Event of Default" has the meaning given to such term in Section 16 of
           ----------------
the Lease.

          "General Terms Agreement" means the General Terms Agreement No. CF34-
           -----------------------
0897-065 entered into as of 25 May 1998 between the Engine Manufacturer and the
Assignor, including Article XIV (Limitation of Liability), but excluding any and
all letter agreements attached thereto.

          "Lease" means the lease agreement [N586ML] dated as of December 10,
           -----
1999 as the same may be amended, modified or supplemented, between the Assignee,
as lessor, and the Assignor, as lessee, providing for the lease of the
Aircraft.

          "Manufacturer" means with respect to the Aircraft or Airframe,
           ------------
Bombardier Inc., a Canadian corporation represented by its Bombardier Regional
Aircraft Division, and its successor and assigns.

          "Purchase Agreement Assignment" means the Purchase Agreement
           -----------------------------
Assignment dated as of December 10, 1999, between the Assignor and Assignee as
the same may be amended, modified or supplemented from time to time, together
with the Consent and Agreement thereto executed by the Manufacturer.

          "Warranties" means all warranties or assurances of any kind whatsoever
           ----------
relating to the Engines and related equipment manufactured by the Engine
Manufacturer contained in the CF34 Warranty and as limited by the applicable
terms of the General Terms Agreement.

          1.2  All other capitalized terms used and not otherwise defined herein
shall have the respective meanings set forth in Appendix A to the Lease
(including definitions incorporated therein by reference to another document).

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          2.   Assignment and Authorization of Assignor
               ----------------------------------------

          2.1  The Assignor does hereby sell, assign, transfer and set over unto
the Assignee, its successors and permitted assigns, all of the Assignor's rights
and interests in and to the Warranties as and to the extent that the same relate
to the Engines and the operation thereof, except as and to the extent expressly
reserved below, including, without limitation, in such assignment, (a) all
claims for damages in respect of any Engine arising as a result of any default
by the Engine Manufacturer in respect of the Warranties under the CF34 Warranty
and/or the General Terms Agreement, and (b) any and all rights of the Assignor
to compel performance of the terms of the CF34 Warranty and/or the General Terms
Agreement in respect of the Warranties; reserving exclusively to the Assignor,
however, (i) all of the Assignor's rights and interests in and to the CF34
Warranty and/or the General Terms Agreement as and to the extent that the same
relate to engines other than the Engines and the purchase and operation of such
engines, and (ii) any and all letter agreements, "concessions" and/or "special
guarantees" (as defined in the General Terms Agreement). The Assignee hereby
accepts such assignment.

          2.2  Notwithstanding the foregoing, unless an Event of Default shall
have occurred and be continuing and the Assignee shall have commenced the
exercise of remedies set forth in Section 17 of the Lease, the Assignee hereby
authorizes the Assignor, to exercise in the Assignor's name all rights in
respect of the Warranties, except that:  the Assignor may not enter into any
change order or other amendment, modification or supplement to the CF34 Warranty
and/or the General Terms Agreement in respect of any Warranties without the
prior written consent or countersignature of the Assignee if such change, order,
amendment, modification or supplement would result in any reduction in the scope
of the Warranties, rescission, cancellation or termination of the CF34 Warranty
and/or the General Terms Agreement (to the extent it relates to any applicable
Warranties) or otherwise adversely affect Assignee's rights assigned hereunder.

          2.3  For all purposes of this Assignment, the Engine Manufacturer
shall not be deemed to have knowledge of and need not recognize the occurrence,
the continuance or the discontinuance of any Event of Default under the Lease,
or the exercise of remedies set forth in Section 17 of the Lease by the
Assignee, unless and until the Engine Manufacturer shall have received from the
Assignee written notice thereof addressed to the Engine Manufacturer's Manager
of Small Commercial Engine Contracts, G.E. Aircraft Engines, 1000 Western
Avenue, Lynn, Massachusetts, 01910, U.S.A., and, in acting in acquittance with
the CF34 Warranty, the General Terms Agreement and this Assignment, the Engine
Manufacturer may conclusively rely on such notice.  Until such time as notice
shall have been given by the Assignee to the Engine Manufacturer that an Event
of Default has occurred and is continuing and the Assignee has commenced the
exercise of remedies set forth in Section 17 of the Lease, the Engine
Manufacturer shall with respect to the Warranties deal solely and exclusively
with the Assignor.  The Assignee shall promptly after all such Events of Default
shall have been remedied, give written notice of the same to the Engine
Manufacturer's Manager of Small Commercial Engine Contracts as provided above,
with a copy to

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the Assignor at its address for notices set forth in Section 23(a) of the Lease,
and upon the Engine Manufacturer's receipt of such notice, the Engine
Manufacturer shall, in the absence of a notice from the Assignee to the Engine
Manufacturer that an Event of Default has occurred and is continuing and the
Assignee has commenced the exercise of remedies set forth in Section 17 of the
Lease, resume the sole and exclusive dealings with the Assignor authorized by
this Clause 2 and by the Engine Manufacturer's Consent and Agreement.

          2.4  The Assignment contained herein shall apply only to the Engines
(as installed on the Aircraft at the time of delivery) and shall not extend to
any replacement or substitute engine, unless and until the Engine Manufacturer
has received written notice thereof.  The Engine Manufacturer shall not be
deemed to have knowledge of the replacement or substitution of an Engine due to
a Failure (as such term is defined in the CF34 Warranty, excluding normal wear,
tear and deterioration which can be restored by overhaul or repair), damage or
loss, until notified of such Failure, damage or loss.  Notice shall be sent to:
Engine Manufacturer's Manager of Small Commercial Engine Contracts.  Such notice
shall contain the serial number of the replaced or substituted Engine, the
serial number of the new engine and confirmation that such new engine shall be
subject to the terms and conditions of this Assignment.

          3.   Assignor's Continuing Obligations
               ---------------------------------

          3.1  It is expressly agreed that, anything herein contained to the
contrary notwithstanding:  (a) on or prior to the Delivery Date for the Aircraft
under the Purchase Agreement Assignment, the Assignor will perform its
obligations with respect to the Engines to be performed by it on or before such
Delivery Date, (b) the Assignor shall at all times remain liable to the Engine
Manufacturer under the terms and conditions of the General Terms Agreement to
perform all duties and obligations of the Assignor thereunder to the same extent
as if this Assignment had not been executed, (c) the exercise by the Assignee of
any of the rights assigned hereunder shall not release the Assignor from any of
its duties or obligations to the Engine Manufacturer under the General Terms
Agreement, except to the extent that such exercise by the Assignee shall
constitute performance of such duties and obligations, (d) after the Delivery
Date for the Aircraft, the Assignor will exercise its rights and perform its
obligations under the General Terms Agreement in respect of the Engines to the
extent that such rights and obligations have not been assigned hereunder, and
(e) except as specifically provided in Clause 3.2 with respect to the Assignee,
the Assignee shall not have any obligation or liability under the General Terms
Agreement by reason of or arising out of this Assignment or be obligated to
perform any of the obligations or duties of the Assignor under the General Terms
Agreement or to make any payment or to make any inquiry as to the sufficiency of
any payment received by it or to present or file any claim or to take any other
action to collect or enforce any claim for any payment assigned hereunder.

          3.2  Anything contained in this Assignment to the contrary
notwithstanding (but without in any way releasing the Assignor from any of its
duties or obligations under the General

                                       5
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Terms Agreement), the Assignee confirms expressly for the benefit of the Engine
Manufacturer that, in exercising any rights in and to the Warranties, or in
making any claim with respect thereto, the applicable terms and conditions of
the General Terms Agreement, including Article XIV (Limitation of Liability) and
the Warranties shall apply to, and be binding upon, the Assignee to the same
extent as the Assignor. Nothing contained herein shall in any way diminish or
limit the provisions of the Assignor's indemnities in the Lease and the
Participation Agreement and in the Aircraft Purchase Agreement with respect to
any liability of the Assignee to the Manufacturer in any way relating to or
arising out of the Purchase Agreement Assignment.

          3.3  Nothing contained herein shall subject the Engine Manufacturer to
any obligation or liability to which it would not otherwise be subject under the
General Terms Agreement or modify in any respect the contract rights of the
Engine Manufacturer thereunder or subject the Engine Manufacturer to any
multiple or duplicative obligation or liability under the General Terms
Agreement or limit any rights of set-off the Engine Manufacturer may have
against the Assignor under applicable law.  No further assignment of the
Warranties, including but not limited to assignments for security purposes, are
permitted without the express prior written consent of the Engine Manufacturer,
other than an assignment to ICX Corporation as the Owner Participant whereby
such consent is not required.

          3.4  Effective at any time after an Event of Default shall have
occurred and be continuing and the Assignee shall have commenced the exercise of
remedies set forth in Section 17 of the Lease, the Assignor does hereby
constitute the Assignee, its successors and permitted assigns, the Assignor's
true and lawful attorney, irrevocably, with full power (in the name of the
Assignor or otherwise) to ask, require, demand, receive, compound and give
acquittance for any and all monies and claims for monies due or to become due
under, or arising out of, the General Terms Agreement in respect of such Engine,
but only to the extent that the same have been expressly assigned by this
Assignment and, for such period as the Assignee may exercise rights with respect
thereto under this Assignment, to endorse any checks or other instruments or
orders in connection therewith and to file any claims or take any action or
institute (or, if previously commenced, assume control of) any proceedings and
to obtain any recovery in connection therewith that the Assignee may deem to be
necessary or advisable with respect to such monies and claims for monies.

          3.5  So long as the Engine Manufacturer acts in good faith in
accordance with this Assignment, the Engine Manufacturer may rely conclusively
on any notice given by the Assignee hereunder without inquiring as to the
accuracy of, or the entitlement of the Assignee to give, such notice.

          4.   Further Assurance
               -----------------

          4.1  The Assignor agrees that at any time and from time to time, upon
the written request of the Assignee, the Assignor, at its own cost and expense,
will promptly and duly execute

                                       6
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and deliver any and all such further instruments and documents and take such
further action as the Assignee may reasonably request in order to obtain the
full benefits of this Assignment and of the rights and powers herein granted.

          5.   Representations, Warranties and Covenants
               -----------------------------------------

          5.1  The Assignor does hereby represent and warrant that the General
Terms Agreement and the CF34 Warranty are in full force and effect as to the
Assignor and are enforceable against the Assignor in accordance with their
respective terms.  The Assignor further represents and warrants that it has,
with the authorized execution of the Engine Manufacturer's Consent and
Agreement, received all necessary consents to the assignment and transfer
contemplated herein.

          5.2  The Assignor does hereby represent and warrant that it has not
assigned or pledged, and hereby covenants that it will not assign or pledge, so
long as this Assignment shall remain in effect, the whole or any part of the
Warranties hereby assigned to anyone other than the Assignee.

          5.3  The Assignee agrees that it will not enter into any agreement
with the Engine Manufacturer that would amend, modify, rescind, cancel or
terminate the General Terms Agreement and/or the CF34 Warranty in respect of the
Warranties or take other action to amend, modify, rescind, cancel or terminate
any of the Assignor's rights in respect of the Warranties, without the prior
written consent of the Assignor, except if the Engine Manufacturer shall have
been notified in writing by the Assignee that an Event of Default has occurred
and is continuing and the Assignee has commenced the exercise of remedies set
forth in Section 17 of the Lease.

          5.4  Each of the Assignor, the Assignee and the Engine Manufacturer
agrees that neither this Assignment nor the attached and incorporated Engine
Manufacturer's Consent and Agreement, nor any of the terms or provisions of this
Assignment or the Engine Manufacturer's Consent and Agreement, may be amended,
extended, modified, supplemented, terminated or waived orally.  Any and all
amendments, extensions, modifications, supplements, terminations or waivers must
be presented to each of the other parties in writing, and be signed by the party
against whom the enforcement of such amendment, modification, supplement,
termination or waiver is sought to be charged.

          6.   Confidentiality
               ---------------

          6.1  The Assignee agrees, that it will not, without the prior written
consent of the Engine Manufacturer, disclose, directly or indirectly, to any
third party any terms of the CF34 Warranty disclosed to it in writing by the
Engine Manufacturer; provided that (a) the Assignee may use, retain and disclose
any such information to its special counsel and public accountants and to bank
examiners and auditors, each of whom shall be obligated to not further disclose
such terms, (b)

                                       7
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the Assignee may disclose any such information to the Owner Participant and its
attorneys and accountants, each of whom shall be obligated to not further
disclose such terms, (c) the Assignee may disclose any such information as
required by applicable laws or governmental regulations, provided that the
Assignee shall first, to the extent practicable, have given the Engine
Manufacturer reasonable opportunity, at the Engine Manufacturer's cost and
expense, to obtain a protective order or other reasonably satisfactory assurance
of confidential treatment for the information required to be disclosed, (d) to
the extent that the Assignee may have received a subpoena or other written
demand under color of legal right for such information, the Assignee may
disclose such information, but it shall first, as soon as practicable upon
receipt of such demand and to the extent permitted by applicable laws, furnish a
copy thereof to the Assignor and to the Engine Manufacturer, and the Assignee
shall afford the Assignor and the Engine Manufacturer reasonable opportunity, at
the moving person's cost and expense, to obtain a protective order or other
reasonably satisfactory assurance of confidential treatment for the information
required to be disclosed, and (e) the Assignee may disclose any such information
to any potential purchaser of the Aircraft and/or the Engine (subject to
execution by such prospective purchaser of a written confidentiality statement
setting forth the same or substantially similar terms as those referred to in
this paragraph).

          7.   Miscellaneous
               -------------

          7.1  This Assignment 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
instrument.

          7.2  This Assignment shall in all respects be governed by, and
construed in accordance with, the laws of the State of New York, including all
matters of construction, validity and performance.  This Assignment is being
delivered in the State of New York.

          7.3  First Union Trust Company, National Association is entering into
this Assignment solely as Owner Trustee under the Trust Agreement and not in its
individual capacity and neither First Union Trust Company, National Association
nor any entity acting as successor Owner Trustee or additional Owner Trustee
under the Trust Agreement shall be personally liable for, or for any loss in
respect of, any of the statements, representations, warranties, agreements or
obligations stated to be those of the Assignee hereunder, as to which all
interested parties shall look solely to the Trust Estate, except to the extent
expressly provided otherwise in the other Operative Agreements, provided
                                                                --------
however, that nothing in this Section 7.3 shall be construed to limit in scope
-------
or substance the liability of First Union Trust Company, National Association or
any entity acting as successor Owner Trustee or additional Owner Trustee under
the Trust Agreement in its individual capacity for the consequences of its own
willful misconduct or gross negligence or (in receiving, handling or remitting
funds) its simple negligence, or the inaccuracy or breach of its
representations, warranties or covenants made in such capacity in any other
Operative Agreements.

                                       8
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          7.4  All notices hereunder shall be given in the manner set forth in
Section 12.01 of the Participation Agreement.

*                             *                              *

                                       9
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          IN WITNESS WHEREOF, the parties hereto have caused this Engine
Warranty Assignment to be duly executed as of the day and year first above
written.

                              MIDWAY AIRLINES CORPORATION,
                              as Assignor

                              By:   /s/ Jonathan S. Waller
                                    ----------------------
                                    Name:  Jonathan S. Waller
                                    Title: Senior Vice President
                                           General Counsel

                              FIRST UNION TRUST COMPANY, NATIONAL
                              ASSOCIATION, not in its individual capacity
                              but solely as Owner Trustee,
                              as Assignee

                              By:   /s/ Sterling C. Correia
                                    -----------------------
                                    Name:  Sterling C. Correia
                                    Title: Vice President

                                       10
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                                     ANNEX

                           GENERAL ELECTRIC COMPANY

             ENGINE MANUFACTURER'S CONSENT AND AGREEMENT [N586ML]
             ----------------------------------------------------

          The undersigned, GENERAL ELECTRIC COMPANY, a New York corporation (the
"Engine Manufacturer"), hereby acknowledges notice of and consents to all of the
terms of the Engine Warranty Assignment [N586ML] (herein called the
"Assignment", the defined terms therein being hereinafter used with the same
meaning), dated as of December 10, 1999, between MIDWAY AIRLINES CORPORATION, a
Delaware corporation, as Assignor and FIRST UNION TRUST COMPANY, NATIONAL
ASSOCIATION, a national banking association, not in its individual capacity but
solely as Owner Trustee, as Assignee, relating to the assignment by the Assignor
of, its rights and interests in the Warranties, and hereby confirms to the
Assignee that:  (i) all the Warranties given by the Engine Manufacturer under
the CF34 Warranty and/or the General Terms Agreement with respect to the Engines
shall, subject to the terms and conditions thereof and of the Assignment inure
to the benefit of the Assignee to the same extent as if the Assignee had
originally been a party thereto except as provided by Clause 2 of the
Assignment; (ii) the Assignee shall not be liable for any of the obligations or
duties of the Assignor under the General Terms Agreement in respect of the
Engines, and the Assignment shall not give rise to any duties or obligations
whatsoever on the part of the Assignee owing to the Engine Manufacturer, except
for the Assignee's agreement in the Assignment with respect to the Engines to
the effect that, in exercising any right in and to the Warranties, or in making
any claim with respect thereto, the applicable terms and conditions of the
General Terms Agreement including Article XIV (Limitation of Liability) shall
apply to, and be binding upon, the Assignee to the same extent as the Assignor,
and with respect to such agreement the Engine Manufacturer agrees that, anything
contained in the General Terms Agreement or the Assignment to the contrary
notwithstanding, the Assignee shall have no liability to the Engine Manufacturer
for failure to comply with any of the terms of the General Terms Agreement with
respect to the Warranties while under the Lease to the Assignor so long as the
Assignee acts upon the written instructions of the Assignor (to which
instructions the undersigned understands that it shall have access on request);
provided, that no person other than the Engine Manufacturer or any assignee of
the Engine Manufacturer as permitted under the General Terms Agreement shall
have any rights against the Assignee with respect to the undertaking and
agreement set forth in this clause (ii); (iii) the Engine Manufacturer consents
to the execution of the Lease; (iv) the Engine Manufacturer agrees that the
Assignment constitutes an agreement permitted by the General Terms Agreement and
pursuant to and in accordance with the provisions of the General Terms
Agreement, the Engine Manufacturer consents to the assignment of Assignor's
interest in and to the Warranties as and to the extent that the same relate to
the Engines and the operation thereof to Assignee pursuant to the Assignment;
and (v) the Engine Manufacturer will continue to pay to the Assignor all
payments which the Engine Manufacturer may be required to make under the

                                       1
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General Terms Agreement in respect of the Warranties unless and until the Engine
Manufacturer shall have received written notice from the Assignee addressed to
the Engine Manufacturer's Manager of Small Commercial Engine Contracts, G.E.
Aircraft Engines, 1000 Western Avenue, Lynn, Massachusetts, 01910, U.S.A., that
an Event of Default has occurred and is continuing and the Assignee has
commenced the exercise of remedies set forth in Section 17 of the Lease (which
such notice shall be conclusive proof thereof between the Engine Manufacturer
and the Assignor), whereupon the Engine Manufacturer will, until the Assignee
shall have notified the Engine Manufacturer in writing that no such Event of
Default is continuing and remains unremedied, make any and all payments and take
all actions which it may be required thereafter to make or take under CF34
Warranty and/or the General Terms Agreement in respect of the Warranties and the
right to receive which has been assigned to the Assignee under the Assignment
directly to the Assignee at its address as from time to time notified to the
Engine Manufacturer in writing.

          The Engine Manufacturer hereby represents and warrants (a) the Engine
Manufacturer is a corporation organized and existing in good standing under the
law of the State of New York, (b) the making and performance in accordance with
the respective terms of the General Terms Agreement, the CF34 Warranty and this
Engine Manufacturer's Consent and Agreement have been duly authorized by all
necessary corporate action on the part of the Engine Manufacturer, do not
require any stockholder approval, contravene the Engine Manufacturer's
certificate of incorporation or by-laws or any indenture, credit agreement or
other contractual agreement to which the Engine Manufacturer is a party or by
which it is bound and do not, as to the making thereof, contravene any law
binding on the Engine Manufacturer, and, as to the best knowledge of the Engine
Manufacturer, do not, to the performance thereof, contravene any law binding on
the Engine Manufacturer, (c) to the best of the Engine Manufacturer's knowledge,
all applicable provisions of the General Terms Agreement and the CF34 Warranty
have been compiled with to effect the assignment to the Assignee of the
Warranties contemplated by the Assignment, and (d) the General Terms Agreement
and the CF34 Warranty constituted, as of the date thereof and at all times
thereafter to and including the date of this Engine Manufacturer's Consent and
Agreement the legal, valid and binding obligations of the Engine Manufacturer
enforceable against the Engine Manufacturer in accordance with their respective
terms, and this Engine Manufacturer's Consent and Agreement is the legal, valid
and binding obligation of the Engine Manufacturer, enforceable against the
Engine Manufacturer in accordance with its terms subject to:  (i) the
limitations of applicable bankruptcy, insolvency, reorganization, moratorium,
fraudulent transfer or similar laws affecting the rights of creditors generally,
and (ii) general principles of equity (regardless of whether such enforceability
is considered in a proceeding in equity or at law), which principles do not make
the remedies available at law or in equity with respect to the General Terms
Agreement or this Engine Manufacturer's Consent and Agreement inadequate for the
practical realization of the benefits intended to be provided thereby.
Notwithstanding any provision to the contrary in this Engine Manufacturer's
Consent and Agreement or the Assignment, nothing contained in this Engine
Manufacturer's Consent and Agreement or the Assignment shall subject the Engine
Manufacturer to any obligation or liability to which it would not otherwise be
subject under the General Terms Agreement or modify

                                       2
<PAGE>

in any respect the Engine Manufacturer's contract rights thereunder or subject
the Engine Manufacturer to any multiple or duplicative obligation or liability
under the General Terms Agreement.

          It is understood that the execution by the Engine Manufacturer, and
validity, of this Engine Manufacturer's Consent and Agreement is subject to the
condition that, upon the delivery of the Aircraft (including the Engines) by the
Assignor to the Assignee and the acceptance thereof by the Assignee pursuant to
the Purchase Agreement Assignment, the Assignee shall lease such Aircraft
(including the Engines) to the Assignor under the Lease.

          This Engine Manufacturer's Consent and Agreement shall be governed by,
and construed in accordance with, the law of the State of New York, U.S.A.

*                             *                              *

                                       3
<PAGE>

          IN WITNESS WHEREOF, the Engine Manufacturer has caused this Engine
Manufacturer's Consent and Agreement to be duly executed as of December 10,
1999.

                         GENERAL ELECTRIC COMPANY

                         By:  ____________________________________
                              Name:
                              Title:

                                       4
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                           GENERAL ELECTRIC COMPANY

             ENGINE MANUFACTURER'S CONSENT AND AGREEMENT [N586ML]
             ----------------------------------------------------

          The undersigned, GENERAL ELECTRIC COMPANY, a New York corporation (the
"Engine Manufacturer"), hereby acknowledges notice of and consents to all of the
terms of the Engine Warranty Assignment [N586ML] (herein called the
"Assignment", the defined terms therein being hereinafter used with the same
meaning), dated as of December 10, 1999, between MIDWAY AIRLINES CORPORATION, a
Delaware corporation, as Assignor and FIRST UNION TRUST COMPANY, NATIONAL
ASSOCIATION, a national banking association, not in its individual capacity but
solely as Owner Trustee, as Assignee, relating to the assignment by the Assignor
of, its rights and interests in the Warranties, and hereby confirms to the
Assignee that:  (i) all the Warranties given by the Engine Manufacturer under
the CF34 Warranty and/or the General Terms Agreement with respect to the Engines
shall, subject to the terms and conditions thereof and of the Assignment inure
to the benefit of the Assignee to the same extent as if the Assignee had
originally been a party thereto except as provided by Clause 2 of the
Assignment; (ii) the Assignee shall not be liable for any of the obligations or
duties of the Assignor under the General Terms Agreement in respect of the
Engines, and the Assignment shall not give rise to any duties or obligations
whatsoever on the part of the Assignee owing to the Engine Manufacturer, except
for the Assignee's agreement in the Assignment with respect to the Engines to
the effect that, in exercising any right in and to the Warranties, or in making
any claim with respect thereto, the applicable terms and conditions of the
General Terms Agreement including Article XIV (Limitation of Liability) shall
apply to, and be binding upon, the Assignee to the same extent as the Assignor,
and with respect to such agreement the Engine Manufacturer agrees that, anything
contained in the General Terms Agreement or the Assignment to the contrary
notwithstanding, the Assignee shall have no liability to the Engine Manufacturer
for failure to comply with any of the terms of the General Terms Agreement with
respect to the Warranties while under the Lease to the Assignor so long as the
Assignee acts upon the written instructions of the Assignor (to which
instructions the undersigned understands that it shall have access on request);
provided, that no person other than the Engine Manufacturer or any assignee of
the Engine Manufacturer as permitted under the General Terms Agreement shall
have any rights against the Assignee with respect to the undertaking and
agreement set forth in this clause (ii); (iii) the Engine Manufacturer consents
to the execution of the Lease; (iv) the Engine Manufacturer agrees that the
Assignment constitutes an agreement permitted by the General Terms Agreement and
pursuant to and in accordance with the provisions of the General Terms
Agreement, the Engine Manufacturer consents to the assignment of Assignor's
interest in and to the Warranties as and to the extent that the same relate to
the Engines and the operation thereof to Assignee pursuant to the Assignment;
and (v) the Engine Manufacturer will continue to pay to the Assignor all
payments which the Engine Manufacturer may be required to make under the General
Terms Agreement in respect of the Warranties unless and until the Engine
Manufacturer shall have received written notice from the Assignee addressed to
the Engine Manufacturer's
<PAGE>

Manager of Small Commercial Engine Contracts, G.E. Aircraft Engines, 1000
Western Avenue, Lynn, Massachusetts, 01910, U.S.A., that an Event of Default has
occurred and is continuing and the Assignee has commenced the exercise of
remedies set forth in Section 17 of the Lease (which such notice shall be
conclusive proof thereof between the Engine Manufacturer and the Assignor),
whereupon the Engine Manufacturer will, until the Assignee shall have notified
the Engine Manufacturer in writing that no such Event of Default is continuing
and remains unremedied, make any and all payments and take all actions which it
may be required thereafter to make or take under CF34 Warranty and/or the
General Terms Agreement in respect of the Warranties and the right to receive
which has been assigned to the Assignee under the Assignment directly to the
Assignee at its address as from time to time notified to the Engine Manufacturer
in writing.

          The Engine Manufacturer hereby represents and warrants (a) the Engine
Manufacturer is a corporation organized and existing in good standing under the
law of the State of New York, (b) the making and performance in accordance with
the respective terms of the General Terms Agreement, the CF34 Warranty and this
Engine Manufacturer's Consent and Agreement have been duly authorized by all
necessary corporate action on the part of the Engine Manufacturer, do not
require any stockholder approval, contravene the Engine Manufacturer's
certificate of incorporation or by-laws or any indenture, credit agreement or
other contractual agreement to which the Engine Manufacturer is a party or by
which it is bound and do not, as to the making thereof, contravene any law
binding on the Engine Manufacturer, and, as to the best knowledge of the Engine
Manufacturer, do not, to the performance thereof, contravene any law binding on
the Engine Manufacturer, (c) to the best of the Engine Manufacturer's knowledge,
all applicable provisions of the General Terms Agreement and the CF34 Warranty
have been compiled with to effect the assignment to the Assignee of the
Warranties contemplated by the Assignment, and (d) the General Terms Agreement
and the CF34 Warranty constituted, as of the date thereof and at all times
thereafter to and including the date of this Engine Manufacturer's Consent and
Agreement the legal, valid and binding obligations of the Engine Manufacturer
enforceable against the Engine Manufacturer in accordance with their respective
terms, and this Engine Manufacturer's Consent and Agreement is the legal, valid
and binding obligation of the Engine Manufacturer, enforceable against the
Engine Manufacturer in accordance with its terms subject to:  (i) the
limitations of applicable bankruptcy, insolvency, reorganization, moratorium,
fraudulent transfer or similar laws affecting the rights of creditors generally,
and (ii) general principles of equity (regardless of whether such enforceability
is considered in a proceeding in equity or at law), which principles do not make
the remedies available at law or in equity with respect to the General Terms
Agreement or this Engine Manufacturer's Consent and Agreement inadequate for the
practical realization of the benefits intended to be provided thereby.
Notwithstanding any provision to the contrary in this Engine Manufacturer's
Consent and Agreement or the Assignment, nothing contained in this Engine
Manufacturer's Consent and Agreement or the Assignment shall subject the Engine
Manufacturer to any obligation or liability to which it would not otherwise be
subject under the General Terms Agreement or modify in any respect the Engine
Manufacturer's contract rights thereunder or subject the Engine
<PAGE>

Manufacturer to any multiple or duplicative obligation or liability under the
General Terms Agreement.

          It is understood that the execution by the Engine Manufacturer, and
validity, of this Engine Manufacturer's Consent and Agreement is subject to the
condition that, upon the delivery of the Aircraft (including the Engines) by the
Assignor to the Assignee and the acceptance thereof by the Assignee pursuant to
the Purchase Agreement Assignment, the Assignee shall lease such Aircraft
(including the Engines) to the Assignor under the Lease.

          This Engine Manufacturer's Consent and Agreement shall be governed by,
and construed in accordance with, the law of the State of New York, U.S.A.

*                             *                              *
<PAGE>

          IN WITNESS WHEREOF, the Engine Manufacturer has caused this Engine
Manufacturer's Consent and Agreement to be duly executed as of December 15,
1999.

                         GENERAL ELECTRIC COMPANY

                         By:  /s/ Patricia A. Bowles
                              ----------------------
                              Name:  Patricia A. Bowles
                              Title: Contracts Manager,
                                     Attorney-In-Fact<PAGE>

                                                                  CONFORMED COPY
                                                                  --------------

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

                           LEASE AGREEMENT [N587ML]

                         dated as of December 30, 1999

                                    between

                              FLEET NATIONAL BANK

                                                            Lessor,

                                      and

                          MIDWAY AIRLINES CORPORATION

                                                            Lessee.

                        Covering One Canadair Regional
                          Jet Series 200 ER Aircraft
                          Registration Number N587ML
                       Manufacturer's Serial Number 7346

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

                      THIS IS ORIGINAL COUNTERPART NO. 1.
TO THE EXTENT, IF ANY, THAT THIS LEASE AGREEMENT [N587ML] CONSTITUTES CHATTEL
PAPER (AS THE TERM IS DEFINED IN THE UNIFORM COMMERCIAL CODE AS IN EFFECT IN ANY
APPLICABLE JURISDICTION), NO SECURITY INTEREST IN THIS LEASE AGREEMENT [N587ML]
MAY BE CREATED THROUGH THE TRANSFER OR POSSESSION OF ANY COUNTERPART OTHER THAN
THE ORIGINAL COUNTERPART MARKED COUNTERPART NO. 1.
<PAGE>

                               TABLE OF CONTENTS
                               -----------------

<TABLE>
<CAPTION>
                                                                                                                Page
                                                                                                                ----
<S>                                                                                                             <C>
Section 1.      Interpretation...............................................................................     1
       (a)      Definitions..................................................................................     1
       (b)      References...................................................................................     1
       (c)      Headings.....................................................................................     2
       (d)      Appendices, Schedules and Exhibits...........................................................     2

Section 2.      Delivery and Leasing of the Aircraft.........................................................     2
       (a)      Leasing of the Aircraft......................................................................     2
       (b)      Delivery and Acceptance of the Aircraft Under the Lease......................................     2

Section 3.      Term and Rent................................................................................     2
       (a)      Term.........................................................................................     2
       (b)      Basic Rent...................................................................................     3
       (c)      Supplemental Rent............................................................................     3
       (d)      Adjustments to Basic Rent and Termination Values.............................................     3
       (e)      Manner of Payment............................................................................     5
       (f)      Rent Obligations Unconditional...............................................................     5

Section 4.      The Lessor's Representations and Warranties..................................................     6

Section 5.      Possession, Operation and Use, Maintenance, Registration and Insignia........................     8
       (a)      General......................................................................................     8
       (b)      Possession...................................................................................     8
       (c)      Operation and Use............................................................................    12
       (d)      Maintenance..................................................................................    13
       (e)      Registration.................................................................................    13

Section 6.      Inspection...................................................................................    14

Section 7.      Replacement and Pooling of Parts; Alterations, Modifications and
                Additions; Substitution of Engines...........................................................    15
       (a)      Replacement of Parts.........................................................................    15
       (b)      Title to Parts...............................................................................    15
       (c)      Pooling or Parts Leasing.....................................................................    15
       (d)      Alterations, Modifications and Additions.....................................................    16
       (e)      Substitution of Engines......................................................................    17
</TABLE>
<PAGE>

<TABLE>
<CAPTION>
                                                                                                                Page
                                                                                                                ----
<S>                                                                                                             <C>
Section 8.      Loss, Destruction or Requisition.............................................................    19
       (a)      Event of Loss with Respect to the Airframe...................................................    19
       (b)      Effect of Replacement........................................................................    21
       (c)      Effect of Termination Value Payment..........................................................    21
       (d)      Conditions to Airframe Replacement...........................................................    21
       (e)      Non-Insurance Payments Received on Account of an Event of Loss...............................    24
       (f)      Requisition for Use..........................................................................    25
       (g)      Certain Payments to be Held As Security......................................................    25

Section 9.      Insurance....................................................................................    26
       (a)      Public Liability and Property Damage Insurance...............................................    26
       (b)      Insurance Against Loss or Damage to the Aircraft and Engines.................................    26
       (c)      Additional Insureds; Loss Payment............................................................    27
       (d)      Deductibles and Self-Insurance...............................................................    28
       (e)      Application of Hull Insurance Proceeds.......................................................    28
       (f)      Insurance for Own Account....................................................................    29
       (g)      Reports, etc.................................................................................    29
       (h)      Right to Pay Premiums........................................................................    30

Section 10.     Liens........................................................................................    30

Section 11.     Recordation and Further Assurances...........................................................    31
       (a)      Recordation of Lease.........................................................................    31
       (b)      Further Assurances...........................................................................    31

Section 12.     Return of Aircraft and Records...............................................................    31
       (a)      Return of Aircraft...........................................................................    31
       (b)      Return of Other Engines......................................................................    32
       (c)      Fuel; Records................................................................................    32
       (d)      Condition of Aircraft........................................................................    32
       (e)      Storage and Related Matters..................................................................    32

Section 13.     Renewal Option and Purchase Options..........................................................    33
       (a)      Renewal Terms................................................................................    33
       (b)      Lessee's Purchase Options....................................................................    34
                (i)      Rights to Purchase..................................................................    34
                (ii)     Notice of Exercise of Option........................................................    34
</TABLE>
<PAGE>

<TABLE>
<CAPTION>
                                                                                                                Page
                                                                                                                ----
<S>                                                                                                             <C>
Section 14.     Voluntary Termination for Obsolescence.......................................................    35
       (a)      Termination by Sale of Aircraft..............................................................    35
       (b)      Payments Due Upon Sale of Aircraft...........................................................    36
       (c)      Preemptive Election by Lessor................................................................    36
       (d)      Termination of Lease.........................................................................    37
       (e)      Effect of No Sale or Preemptive Delivery to Lessor...........................................    37
       (f)      No Duty on Part of Lessor....................................................................    37

Section 15.     Investment of Security Funds.................................................................    37

Section 16.     Events of Default............................................................................    38

Section 17.     Remedies.....................................................................................    40

Section 18.     Lessor's Right to Perform for the Lessee.....................................................    43

Section 19.     Bankruptcy...................................................................................    44

Section 20.     Assignment: Benefit and Binding Effect.......................................................    44
       (a)      Assignment by the Lessee.....................................................................    44
       (b)      Assignment by the Lessor.....................................................................    44
       (c)      Benefit and Binding Effect...................................................................    44
       (d)      Sublessee's Performance and Rights...........................................................    45

Section 21.     Certain Agreements of Lessee.................................................................    45

Section 22.     Miscellaneous................................................................................    45
       (a)      Notices......................................................................................    45
       (b)      Counterparts.................................................................................    45
       (c)      Amendments...................................................................................    46
       (d)      Agreement to Lease...........................................................................    46
       (e)      Governing Law................................................................................    46
       (f)      Severability.................................................................................    47
       (g)      Survival.....................................................................................    48
       (h)      Article 2A...................................................................................    48
       (i)      Security Interest............................................................................    48
</TABLE>
<PAGE>

Appendix A   Definitions
Exhibit A    Form of Lease Supplement
Exhibit B    Certain Economic Information
Exhibit C    Basic Rent
Exhibit D    Termination Values
Exhibit E    List of Countries
Exhibit F    Return Conditions
<PAGE>

          THIS LEASE AGREEMENT [N587ML], dated as of December 30, 1999, between
FLEET NATIONAL BANK, a national banking association established under the laws
of the United States of America, the Lessor, and MIDWAY AIRLINES CORPORATION, a
Delaware corporation, the Lessee.

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

            WHEREAS, the Lessor intends to purchase the Aircraft pursuant to the
terms of the Supplemental Agreement;

            WHEREAS, the Lessee desires to lease from the Lessor and the Lessor
is willing to lease to the Lessee the Aircraft upon and subject to the terms and
conditions of this Lease; and

            WHEREAS, the parties intend this Lease to constitute a true lease
and not a security agreement;

            NOW, THEREFORE, in consideration of the mutual covenants herein
contained and other good and valuable consideration the receipt and adequacy of
which is hereby acknowledged, and intending to be legally bound, the parties do
hereby agree as follows:

Section 1.  Interpretation.
            --------------

            (a)  Definitions.
                 -----------

            Capitalized terms used herein and defined in Appendix A shall,
except as such definitions may be specifically modified in the body of this
Lease for the purposes of a particular section, paragraph or clause, have the
meanings given such terms in Appendix A and, unless otherwise specified, such
meanings shall be equally applicable to both the singular and the plural forms
of such terms.

            (b)  References.
                 ----------

            References in this Lease to sections, paragraphs, clauses,
appendices, schedules and exhibits are to sections, paragraphs, clauses,
appendices, schedules and exhibits in and to this Lease unless otherwise
specified. Paragraphs identified with a letter and clauses identified with a
number or letter within a section may be referred to either by section reference
(for example, this is Section l(b)) or by paragraph and clause reference (for
example, this is also paragraph (b) of Section 1) with the same meaning.
<PAGE>

            (c)  Headings.
                 --------

            The headings of the various sections, paragraphs and clauses of this
Lease and the table of contents are for convenience of reference only and shall
not modify, define, expand or limit any of the terms or provisions hereof.

            (d)  Appendices, Schedules and Exhibits.
                 ----------------------------------

            The appendices, schedules and exhibits hereto are part of this
Lease.

Section 2.  Delivery and Leasing of the Aircraft.
            ------------------------------------

            (a)  Leasing of the Aircraft.
                 -----------------------

            Subject to the satisfaction or waiver of the conditions precedent
stated in the Supplemental Agreement, the Lessor agrees to lease to the Lessee,
and the Lessee agrees to lease from the Lessor, the Aircraft on the terms and
conditions set forth herein, such leasing to be evidenced by the execution and
delivery by the Lessor and the Lessee on the Delivery Date of a Lease
Supplement.

            (b)  Delivery and Acceptance of the Aircraft Under the Lease.
                 -------------------------------------------------------

            The Lessor hereby authorizes one or more persons designated by the
Lessee as the authorized representative or representatives of the Lessor for the
sole and limited purpose of accepting delivery of the Aircraft from the Seller.
The execution by Lessee of Lease Supplement No. 1 shall evidence that the
Aircraft is leased under, and is subject to all of the terms, provisions and
conditions of, this Lease and shall constitute Lessee's unconditional and
irrevocable acceptance of the Aircraft for all purposes of this Lease. Except as
may be expressly set forth herein, this Lease is non-cancelable and non-
terminable by Lessee.

Section 3.  Term and Rent.
            -------------

            (a)  Term.
                 ----

            The Aircraft is leased for a Term which shall comprise the Basic
Term and, at the option of the Lessee exercised in accordance with Section
13(a), one or more Renewal Terms. The Basic Term shall commence on the Delivery
Date and continue through the Expiration Date; and each Renewal Term, if any,
shall be for the applicable period provided in Section 13(a), except that the
Term (including the Basic Term or any Renewal Term, as the case may be) shall
end upon any earlier termination of this Lease according to its terms.

                                       2
<PAGE>

            (b) Basic Rent.
                ----------

            The Lessee shall pay Basic Rent in consecutive semi-annual
installments on each Basic Rent Payment Date during the Basic Term, each such
installment to be in an amount determined by multiplying Lessor's Cost by the
percentage set forth in Exhibit C for the applicable Basic Rent Payment Date.
The Lessee shall pay Basic Rent during a Renewal Term in the amounts and at the
times provided in Section 13(a) for such Renewal Term.

            (c) Supplemental Rent.
                -----------------

            The Lessee shall pay to the Lessor, or to whoever shall be entitled
thereto, any and all Supplemental Rent when the same shall become due and owing.
Without limiting the foregoing, the Lessee shall pay as Supplemental Rent:

                (i)   to the Lessor, on demand, interest at the Past Due Rate on
            any part of any installment of Basic Rent not paid when due for the
            period for which the same shall be overdue; and

                (ii)  to whoever shall have been entitled to receive the
            relevant payment of Supplemental Rent, on demand, interest at the
            Past Due Rate on any payment of Supplemental Rent (other than
            interest payable under this clause (ii)) not paid when due for the
            period for which the same shall be overdue.

            The obligations of the Lessee to pay Supplemental Rent provided for
in this Section 3(c) shall not terminate for any reason and shall survive the
expiration, cancellation or other termination of this Lease.

            (d) Adjustments to Basic Rent and Termination Values.
                ------------------------------------------------

            All installments of Basic Rent remaining to be paid during the Basic
Term shall be recalculated and adjusted, upwards or downwards as the case may be
(and corresponding adjustments shall be made to the EBO Amount and the
Termination Values applicable during the remaining Basic Term) to maintain the
Net Economic Return and, to the greatest extent consistent with such maintenance
of such Net Economic Return, to minimize the net present value (calculated at a
discount rate equal to the Applicable Rate or such other rate as may be
specified by the Lessee to the Lessor) of the remaining Basic Rent payments (or,
if the Lessee shall have so specified to the Lessor, the remaining Basic Rent
Payments to the EBO Date together with the EBO Amount), if there shall be an
adjustment of Termination Values as provided in Section 16 of the Tax Indemnity
Agreement.

                                       3
<PAGE>

Adjustments to the installments of Basic Rent (expressed as percentages of
Lessor's Cost) set forth in Exhibit C and conforming adjustments to the EBO
Amount and the amounts of Termination Values (expressed as percentages of
Lessor's Cost) set forth in Exhibit D shall be calculated by the Lessor in
accordance with the terms of this Section 3(d), and the Lessor shall deliver to
the Lessee schedules setting forth the revised EBO Amount and the revised
percentages that the Lessor proposes to include in Exhibits C and D, subject to
review by the Lessee and verification as provided herein. In the event of a
dispute regarding any such adjustment which is not resolved by agreement of the
Lessee and the Lessor, the adjustments, at the request of the Lessee delivered
to the Lessor within 30 days after receipt of the Lessor's proposed adjustments,
shall be subjected to verification by a lease advisory firm or a nationally
recognized firm of accountants to be selected by the Lessor and reasonably
acceptable to the Lessee. The Lessor shall provide to such firm, but not, in any
circumstances, to Lessee or any representatives of Lessee, on a confidential
basis such information as such firm may reasonably require, including, without
limitation, a true copy of this Lease and a full description of the methodology
and assumptions employed by the Lessor in calculating the EBO Amount or Basic
Rent or Termination Value set forth in Exhibits C and D as in effect on the
Delivery Date and a true copy of the calculations of the same performed by the
Lessor at the time, to enable such firm to determine whether the adjustments
proposed by the Lessor are mathematically accurate, apply the same methodology
and assumptions (except to the extent changed by the events giving rise to such
recalculation) as were employed in the calculations of the Basic Rent, EBO
Amount and Termination Values in effect on the Delivery Date, and are otherwise
in conformity with the provisions of this Lease. The Lessee and its financial
advisors shall be entitled to submit such data and views as the Lessee may elect
to such firm concerning the proposed adjustments. The firm shall be requested to
deliver to each of the Lessee and the Lessor within 30 days after its
appointment its determination as to the changes, if any, that are appropriate
with respect to the adjustments proposed by the Lessor. The adjustments proposed
by the Lessor, if not disputed by the Lessee as provided above, or the
determination of the firm as provided above, as the case may be, shall be
conclusive, final and binding upon the Lessor and the Lessee, and the EBO Amount
and Exhibits C and D shall be amended to reflect them. No dispute concerning any
adjustment shall release the Lessee from its obligation to pay the EBO Amount or
Basic Rent or Termination Value as then set forth in Exhibits C and D. All
reasonable fees and expenses payable to a firm pursuant to this paragraph shall
be paid by the Lessee except that such fees and expenses shall be paid entirely
by the Lessor if, as a result of changes determined by the firm, the net present
value, discounted at the Applicable Rate or such other rate as the Lessee may
have specified as provided above in this paragraph, of Basic Rent remaining to
be paid is ten basis points (0.10%) or more lower than it would have been under
the adjustments proposed by the Lessor.

Any adjustments made pursuant to this Section 3(d) shall (i) be made so as to
avoid characterization of this Lease as a "disqualified leaseback or long-term
agreement" within the meaning of Section 467 of the Code and/or regulations
thereunder (or any successor or relevant Code provision or regulations) and (ii)
be in compliance with the requirements of Sections 4.02(5) and 4.07(l) of the
Revenue Procedure 75-28 (or any successor relevant procedure), except to the
extent that on the

                                       4
<PAGE>

Delivery Date the Lease constituted such a "disqualified leaseback or long-term
agreement" or was not in compliance with the revenue procedure referred to in
clause (ii). In addition, notwithstanding any other provisions herein, in no
event shall the EBO Amount be adjusted to an amount that is less than (A) the
adjusted Termination Value as of the applicable EBO Date or (B) the estimated
fair market value of the Aircraft on the applicable EBO Date (as set forth in
the appraisal received pursuant to Section 3.01(b)(xii) of the Supplemental
Agreement). All adjustments required pursuant to this Section 3(d) shall be set
forth in a Lease Supplement or in an amendment to this Lease.

            (e) Manner of Payment.
                -----------------

            All Rent payable by the Lessee to the Lessor hereunder shall be paid
to the Lessor at the following account or at such other account as the Lessor
shall specify in a notice to the Lessee, in Dollars in immediately available
funds, so that the Lessor receives the full amount of each payment not later
than 12:00 noon Eastern Time on the due date thereof:

                Bank: Fleet National Bank
                ABA No. 01150010
                For the account of Fleet Capital Leasing, account no. 015-
                5527767-01
                Re: Midway Airlines Corp., customer no. 33136
                Upon receipt contact Leslie Tordorff at (401) 278-3152

If any Rent is due on a day that is not a Business Day, such Rent shall be paid
on the next succeeding Business Day with the same force and effect as if paid on
the scheduled date of payment and (if paid on such next succeeding Business Day)
no interest shall accrue on the amount of such payment from and after such
scheduled date to the time of payment on such next succeeding Business Day.

            (f) Rent Obligations Unconditional.
                -------------------------------

            This Lease is a net lease, and Lessee acknowledges and agrees that
Lessee's obligation to pay all Rent hereunder and the rights of Lessor in and to
such Rent, shall be absolute, irrevocable and unconditional and shall not be
subject to cancellation, termination, modification or repudiation by Lessee or
any abatement, reduction, setoff, defense, counterclaim or recoupment for any
reason or under any circumstance whatsoever, including, without limitation, (i)
any setoff, counterclaim, recoupment or other right which the Lessee may have
against the Lessor or anyone else for any reason whatsoever, (ii) any defect in
the title, airworthiness, condition, design, operation or fitness for use of, or
any damage to or loss or destruction of, the Aircraft, or any interference,
interruption or cessation in or prohibition of the use or possession thereof by
the Lessee for any reason whatsoever, including, without limitation, any such
interference, interruption, cessation or prohibition resulting from the act of
any governmental authority or any violation by the Lessor of Section 4 hereof,
(iii) any Liens, encumbrances or rights of others with respect to the Aircraft,
(iv) the invalidity or unenforceability or lack of due authorization or other
infirmity or disaffirmance of

                                       5
<PAGE>

this Lease or any provision hereof or any other Operative Agreement or any lack
of right, power or authority of the Lessor or the Lessee to enter into this
Lease or any other Operative Agreement, (v) any insolvency, bankruptcy,
reorganization or similar proceedings by or against the Lessee, or any other
Person, or (vi) any other cause whether similar or dissimilar to the foregoing,
any present or future law notwithstanding, it being the intention of the parties
that all Rent payable by the Lessee hereunder shall continue to be payable in
all events in the manner and at the times provided herein. To the extent
permitted by Applicable Law, the Lessee waives any rights which it may now have
or which may be conferred upon it by statute or otherwise to terminate, cancel,
quit or surrender this Lease except in accordance with the terms hereof. If for
any reason whatsoever this Lease shall be terminated in whole or in part by
operation of law or otherwise except as specifically provided in Sections 8, 13,
14 and 17, Lessee nonetheless agrees to pay to Lessor an amount equal to the
Rent payment at the time such payment would have become due and payable in
accordance with the terms hereof had this Lease not been terminated in whole or
in part. Subject to the following sentence, each payment of Rent made by Lessee
to Lessor shall be final as to Lessor and Lessee and Lessee (unless adjusted in
accordance with the terms of this Lease or another Operative Agreement) will not
seek to recover all or any part of such payment of Rent for any reason
whatsoever. Nothing herein shall be construed as a waiver by the Lessee of any
claim it may have against any Person arising under any of the Operative
Agreements or otherwise, including, without limitation, any claim that Rent
payments demanded from or paid by the Lessee are or were not due, are or were
erroneous or were paid under mistake or protest, or be construed as a limitation
on any rights of the Lessee to assert any claim in any proceeding at law, in
equity or otherwise against the Lessor or any other Person and to pursue and
obtain relief on such claim in such manner as the Lessee shall deem appropriate
other than by setoff against Rent payments due under the terms hereof.

Section 4.  The Lessor's Representations and Warranties.
            -------------------------------------------

            (a) LESSEE EXPRESSLY ACKNOWLEDGES THAT IT HAS SELECTED THE AIRCRAFT
WITHOUT ANY ASSISTANCE FROM LESSOR, ITS AGENTS OR EMPLOYEES AND LESSEE EXPRESSLY
AGREES THAT IT IS LEASING THE AIRCRAFT FROM LESSOR IN AN "AS IS", "WHERE IS" AND
"WITH ALL FAULTS" CONDITION. LESSEE FURTHER ACKNOWLEDGES THAT THE LESSOR HAS NOT
MANUFACTURED OR SUPPLIED THE AIRCRAFT AND THAT THE LESSOR ACQUIRED OR WILL
ACQUIRE THE AIRCRAFT AND/OR THE RIGHT TO POSSESSION THERETO IN CONNECTION WITH
THIS LEASE. LESSOR SHALL NOT BE DEEMED TO HAVE MADE, AND LESSOR HEREBY EXPRESSLY
DISCLAIMS, ANY REPRESENTATION OR WARRANTY (EXCEPT AS OTHERWISE EXPRESSLY
PROVIDED HEREIN OR IN THE SUPPLEMENTAL AGREEMENT), EITHER EXPRESS OR IMPLIED, AS
TO THE AIRCRAFT, ANY PART THEREOF, ANY RECORDS, OR ANY MATTER WHATSOEVER,
INCLUDING, WITHOUT LIMITATION, THE DESIGN, CONDITION, CAPACITY OR DURABILITY OF
THE AIRCRAFT, ITS MERCHANTABILITY OR ITS FITNESS FOR ANY PARTICULAR PURPOSE, USE
OR OPERATION, THE QUALITY OF THE MATERIALS OR WORKMANSHIP OF THE

                                       6
<PAGE>

AIRCRAFT, ITS VALUE OR AIRWORTHINESS, TITLE, SAFETY, THE ABSENCE OF ANY PATENT,
TRADEMARK OR COPYRIGHT INFRINGEMENT OR LATENT DEFECT (WHETHER OR NOT
DISCOVERABLE BY LESSEE), COMPLIANCE OF THE AIRCRAFT WITH THE REQUIREMENTS OF ANY
LAW, RULE, REGULATION OR STANDARD PERTAINING THERETO, OR THE CONFORMITY OF THE
AIRCRAFT TO THE PROVISIONS AND SPECIFICATIONS OF ANY PURCHASE OR OTHER DOCUMENT
RELATING THERETO OR ANY INTERFERENCE OR ANY COURSE OF PERFORMANCE, COURSE OF
DEALING OR USAGE OF TRADE, NOR SHALL LESSOR BE LIABLE, REGARDLESS OF ANY ACTUAL
OR ALLEGED NEGLIGENCE OF LESSOR, FOR ANY DEFECTS, EITHER PATENT OR LATENT
(WHETHER OR NOT DISCOVERABLE BY LESSEE), IN THE AIRCRAFT OR ANY PART THEREOF OR
ANY DIRECT OR INDIRECT DAMAGE TO PERSONS OR PROPERTY OR FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES OR FOR STRICT OR ABSOLUTE
LIABILITY IN TORT, IN ANY SUCH CASE RESULTING THEREFROM. WITHOUT LIMITING THE
GENERALITY OF THE FOREGOING, LESSEE HEREBY WAIVES ANY CLAIM (INCLUDING ANY CLAIM
BASED ON STRICT OR ABSOLUTE LIABILITY IN TORT OR INFRINGEMENT) IT MIGHT HAVE
AGAINST LESSOR FOR ANY LOSS, DAMAGE OR EXPENSE (INCLUDING, WITHOUT LIMITATION,
DIRECT, INDIRECT, INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGE, ANY LOSS OF
BUSINESS OR PROFITS OR ANY INTERRUPTION OR LOSS OF SERVICE OR USE THEREOF)
CAUSED BY THE AIRCRAFT OR BY LESSEE'S LOSS OF USE THEREOF FOR ANY REASON
WHATSOEVER (EXCEPT IN THE CASE OF BREACH BY THE LESSOR OF ITS EXPRESS
OBLIGATIONS UNDER THIS LEASE AND THE SUPPLEMENTAL AGREEMENT).

            If the Aircraft does not operate as warranted, becomes obsolete, or
is unsatisfactory for any reason whatsoever, Lessee shall make all claims on
account thereof solely against the Manufacturer or any other supplier and not
against Lessor, and Lessee shall nevertheless pay all Rent and other sums
payable hereunder. Lessee acknowledges that neither the Manufacturer or any
other supplier nor any sales representative or agent thereof, is an agent of
Lessor, and no agreement or representation as to the Aircraft or any other
matter by any such sales representative or agent of the Manufacturer or any
other supplier shall in any way affect Lessee's obligations hereunder.

            To the extent permitted by Applicable Law, Lessee waives any and all
rights and remedies conferred upon a lessee by Section 2A-508 to 2A-522
(inclusive) of the Uniform Commercial Code; provided however, nothing herein or
                                            -------- -------
in the other Operative Agreement shall in any way limit (x) the obligations of
the Lessor under Section 4(b) hereof or Sections 5.01(b), 5.01(c) and 5.01(d) of
the Supplemental Agreement or (y) the rights or any claims of the Lessee against
the Lessor in the event of any breach by the Lessor of any such obligations.

            (b) The Lessor covenants that during the Term, so long as no Event
of Default shall have occurred and be continuing and the Lessor has not
commenced the exercise of remedies

                                       7
<PAGE>

set forth in Section 17, Lessor or any Person claiming by, through or under
Lessor will not take or cause to be taken any action contrary to the Lessee's
rights hereunder, including, without limitation, its rights to possession, use
and quiet enjoyment of the Aircraft during the Term, provided that nothing
                                                     --------
contained herein shall affect any of the rights of the Lessor under Section 17
upon the occurrence and during the continuance of an Event of Default.

Section 5.  Possession, Operation and Use, Maintenance, Registration and
            ------------------------------------------------------------
            Insignia.
            --------

            (a) General.
                -------

            Except as otherwise expressly provided herein, the Lessee (and any
Permitted Sublessee) shall be entitled during the Term to operate, use, locate,
employ or otherwise utilize or not utilize the Airframe, Engines and Parts
leased hereunder in any lawful manner or place in accordance with the Lessee's
(or such Permitted Sublessee's) business judgment.

            (b) Possession.
                ----------

            The Lessee shall not sublease, or otherwise in any manner deliver,
relinquish or transfer possession of the Airframe or any Engine leased hereunder
to any Person or install any Engine, or permit any Engine to be installed, on
any airframe other than the Airframe, during the Term, without the prior consent
of the Lessor, provided, however, that so long as (A) only in the case of clause
               --------  -------
(x) below, no Event of Default shall have occurred and be continuing, and (B)
all approvals, consents or authorizations required from the Aeronautical
Authority in connection with any such sublease or such delivery, transfer or
relinquishment of possession have been obtained and remain in full force and
effect, the Lessee (or, except in the case of clause (x) below, any Permitted
Sublessee) may, without the prior consent of the Lessor:

                (i)   enter into a charter or wet lease or other similar
            arrangement under which the Lessee (or such Permitted Sublessee) has
            operational control of the Airframe and any Engines installed
            thereon in the course of the Lessee's business (which shall not be
            considered a transfer of possession hereunder), provided that the
            Lessee's obligations under this Lease and such Permitted Sublessee's
            obligations under the relevant Sublease shall continue in full force
            and effect notwithstanding any such charter or wet lease or other
            similar arrangement;

                (ii)  deliver possession of the Airframe or any Engine to the
            manufacturer thereof or to any organization for testing, service,
            repair, maintenance, overhaul work or other similar purposes or for
            alterations or modifications or additions required or permitted by
            the terms of this Lease;

                                       8
<PAGE>

                (iii) subject the Airframe and any Engines installed thereon to
     interchange agreements or any Engine to interchange or pooling agreements
     or arrangements which are applicable to other similar property owned by or
     leased to the Lessee (or such Permitted Sublessee) and are entered into by
     the Lessee (or such Permitted Sublessee) in the course of its airline
     business with any air carrier, provided, that (A) no such agreement or
                                    --------
     arrangement shall under any circumstances result in, contemplate or require
     the transfer of title to the Aircraft, Airframe or any Engine and (B) if
     the Lessor's title to any Engine shall nevertheless be divested under any
     such agreement or arrangement, such divestiture shall be deemed to be an
     Event of Loss with respect to such Engine and the Lessee shall comply with
     Section 7(e) hereof in respect thereof;

               (iv)   install an Engine on an airframe owned by the Lessee (or
     such Permitted Sublessee) free and clear of all Liens except (A) Permitted
     Liens, (B) those which apply only to the engines (other than the Engines),
     appliances, parts, instruments, appurtenances, accessories, furnishings and
     other equipment (other than Parts) installed on such airframe, and (C)
     those created by the rights of other air carriers under interchange or
     pooling agreements or other arrangements customary in the airline industry
     which do not contemplate, permit or require the transfer of title to such
     airframe or engines installed thereon;

               (v)    install an Engine on an airframe, leased to the Lessee (or
     such Permitted Sublessee) or purchased by the Lessee (or such Permitted
     Sublessee) subject to a conditional sale or other security agreement, but
     only if such airframe is free and clear of all Liens, except (i) the rights
     of the parties to such lease, or any such secured financing arrangement,
     covering such airframe and (ii) Liens of the type permitted by Section
     5(b)(iv);

               (vi)   install an Engine on an airframe, owned by the Lessee (or
     such Permitted Sublessee), leased by the Lessee (or such Permitted
     Sublessee) or purchased by the Lessee (or such Permitted Sublessee) subject
     to a conditional sale or other security agreement under circumstances where
     neither clause (iv) nor clause (v) above is applicable, provided that any
                                                             --------
     such installation (so long as the same shall be continuing) shall be deemed
     an Event of Loss with respect to such Engine and the Lessee shall comply
     with Section 7(e) hereof;

               (vii)  transfer possession of the Airframe or Engine to the
     United States of America or any instrumentality thereof pursuant to the
     Civil Reserve Air Fleet Program (as established and administered pursuant
     to Executive Order 11490, as amended, as superseded by United States
     Executive Order No. 12656) or any similar or substitute program ("CRAF
     Program"), in which event Lessee (or such Permitted

                                       9
<PAGE>

     Sublessee) shall promptly notify Lessor in writing of any such transfer of
     possession and, in the case of any transfer pursuant to the CRAF Program,
     in such notification shall identify by name, address and telephone numbers
     the Contracting Office Representatives of the Military Airlift Command of
     the United States Air Force to whom notices must be given and to whom
     requests or claims must be made to the extent applicable under the CRAF
     Program;

               (viii) transfer possession of the Airframe or any Engine to the
     United States of America, or to a foreign government, when required by
     Applicable Law (it being understood that nothing in this clause (viii)
     shall relieve the Lessee from its obligations under Section 8(a) if such
     transfer becomes an Event of Loss), in which event Lessee shall promptly
     notify Lessor in writing of any such transfer of possession;

               (ix)   transfer possession of the Airframe or any Engine to the
     United States of America or any instrumentality or agency thereof pursuant
     to a sublease, contract or other instrument;

               (x)    subject to the provisions of this Section 5(b), enter into
     a sublease with respect to any Engine or the Airframe and Engines or
     engines then installed on the Airframe to any Permitted Sublessee if (A)
     Lessee shall provide written notice to Lessor at least 10 days prior to
     entering into any such sublease, (B) in any such case, the sublessee under
     such sublease is not subject to a proceeding or final order under
     applicable bankruptcy, insolvency or reorganization laws on the date such
     sublease is entered into, (C) in the event that the sublessee under such
     sublease is a foreign air carrier or Person based in a country other than
     the United States, the United States maintains normal diplomatic relations
     with the country in which such proposed sublessee is principally based at
     the time such sublease is entered into and (D) in the event that the
     sublessee under such sublease is a foreign air carrier or Person based in a
     country other than the United States, prior to the effectiveness of such
     sublease Lessor shall have received an opinion of counsel to Lessee
     (reasonably acceptable to Lessor) to the effect that (I) the terms of the
     proposed sublease will be legal, valid, binding and (subject to customary
     exceptions) enforceable against the proposed sublessee in the country in
     which the proposed sublessee is principally based, (II) there exist no
     possessory rights in favor of the sublessee under such sublease under the
     laws of such sublessee's country of domicile that would, upon bankruptcy or
     insolvency of or other default by the Lessee and assuming that at such time
     such sublessee is not insolvent or bankrupt, prevent or unreasonably delay
     the return or repossession of the Aircraft in accordance with and when
     permitted by the terms of Section 17(a) upon the exercise by Lessor of its
     remedies under Section 17(a), (III) the laws of such sublessee's country of
     domicile would give recognition

                                       10
<PAGE>

     to Lessor's title to such Engine or the Airframe, (IV) all filings, if any,
     required to be made in such jurisdiction in connection with the execution
     of such sublease in order to protect the interest of Lessor in such Engine
     or the Airframe have been made, (V) it is not necessary for the Lessor to
     register or qualify to do business in such jurisdiction, if not already so
     registered or qualified, as a result of the proposed sublease, and (VI)
     there is no tort liability for owners not in possession of aircraft in such
     country more onerous than under the laws of the United States or any state
     thereof (it being agreed that in the event such opinion cannot be given in
     a form reasonably satisfactory to the Lessor, such opinion will be waived
     if insurance reasonably satisfactory to the Lessor is provided to cover the
     risk of such tort liability); provided that no such sublease shall be made
                                   --------
     to a Permitted Sublessee of the type described in clause (b) of the
     definition thereof that is not domiciled in the United States or of the
     type described in clause (b) of the definition of Permitted Air Carrier or
     to any tax exempt entity within the meaning of Section 168(h) of the Code
     prior to the end of the Recovery Period, unless the Lessee prepays on a
     lump sum basis any liability due under the Tax Indemnity Agreement as a
     result of such sublease based upon the assumption that such sublease will
     continue for the full term of such sublease;

provided that (1) the rights of any transferee who receives possession by reason
--------
of a transfer permitted by this Section 5(b) (other than by a transfer of an
Engine which is deemed an Event of Loss) shall be subject and subordinate to all
the terms of this Lease; (2) no pooling agreement, sublease or other
relinquishment of possession of the Airframe or any Engine shall discharge or
diminish any of Lessee's obligations to Lessor under this Lease or any other
Operative Agreements or constitute a waiver of Lessor's rights or remedies
thereunder, and the Lessee shall remain primarily liable hereunder for the
performance of all the terms and conditions of this Lease and all of the terms
and conditions of this Lease and the other applicable Operative Agreements shall
remain in effect; (3) no sublease or transfer of possession otherwise in
compliance with this Section 5(b) shall (A) result in any registration or re-
registration of the Aircraft except to the extent permitted by Section 5(e) or
(B) extend beyond the end of the Term (except to the extent that the Lessee
shall have irrevocably committed to exercise a purchase option in accordance
with the terms hereof); (4) if any such sublease or transfer of possession
shall, in the reasonable opinion of the Lessor, result in any risk of adverse
tax consequences, the Lessee shall, prior to entering into the same, provide an
indemnity satisfactory in form and substance to the Lessor against any such
adverse tax consequences; (5) the Lessee shall provide evidence reasonably
satisfactory to Lessor that the insurance required by Section 9 remains in
effect; (6) all necessary documents shall have been duly filed or recorded in
applicable public offices as may be required to preserve the title of Lessor to
the Airframe and Engines; and (7) Lessee shall reimburse Lessor, on an After Tax
Basis, for all of their reasonable out-of-pocket expenses (including fees and
disbursements of counsel) in connection with any such sublease or transfer.

                                       11
<PAGE>

          In the case of any sublease permitted under this Section 5(b), (i) the
Lessee will include in such sublease appropriate provisions which (x) make such
sublease expressly subject and subordinate to all of the terms of this Lease,
including the rights of the Lessor to avoid such sublease in the exercise of its
rights to repossession of the Airframe and Engines hereunder and thereunder; (y)
expressly prohibit any further subleasing of the Airframe and Engines; and (z)
limit the term of such sublease (including renewal rights) to a period not
beyond the end of the Term unless the Lessee shall then have irrevocably
committed to exercise a purchase option in accordance with the terms hereof; and
(ii) if the term of such sublease exceeds two (2) years, the Lessee shall assign
its rights thereunder to Lessor as collateral for its obligations hereunder,
such assignment to be effected pursuant to an agreement in form and substance
reasonably satisfactory to Lessor and duly filed or recorded in all applicable
jurisdictions; provided that, such collateral assignment shall provide that
               -------- -----
payments due under such sublease shall only be paid by the Permitted Sublessee
to the Lessor during the continuance of a Specified Default.

          The Lessor hereby agrees for the benefit of the lessor or secured
party of any engine or of any airframe (other than the Airframe) leased to the
Lessee or purchased by the Lessee subject to a conditional sale or other
security agreement, which lease or conditional sale or other security agreement
(in the case of any such airframe) also covers an engine or engines owned by the
lessor under such lease or subject to a security interest in favor of the
secured party under such conditional sale or other security agreement, that the
Lessor will not acquire or claim, as against such lessor or secured party, any
right, title or interest in any such engine as the result of such engine being
installed on the Airframe at any time while such engine is owned by such lessor
or is subject to such conditional sale or other security agreement or security
interest in favor of such secured party.

          (c)  Operation and Use.
               -----------------

          The Lessee shall not operate, use or locate the Airframe or any
Engine, or suffer such Airframe or any Engine to be operated, used or located
(i) in any area excluded from coverage by any insurance required by the terms of
Section 9 hereof, except in the case of a requisition by the United States of
America where the Lessee obtains (and provides evidence of) indemnity from the
Government for the benefit of the Additional Insureds against substantially the
same risks and for at least the amounts of the insurance required by Section 9
hereof covering such area, or (ii) outside the United States or Canada in any
recognized or, in the Lessee's reasonable judgment, threatened area of
hostilities unless covered by war risk insurance, or in either case (x) unless
the Airframe or such Engine is operated or used under contract with the
Government under which contract the Government assumes liability for
substantially the same risks in at least the same amounts as would be covered by
such insurance, or (y) except to the extent attributable primarily to causes
beyond the reasonable control of the Lessee or any Permitted Sublessee or
primarily to circumstances involving an isolated occurrence or series of events
not in the ordinary course of the regular operations of the Lessee or any
Permitted Sublessee, and the Lessee or Permitted Sublessee is diligently trying
to rectify the situation.  The Lessee shall not permit the Airframe or any
Engine to be used or operated

                                       12
<PAGE>

during the Term in violation of any Applicable Law or in violation of any
airworthiness certificate, license or registration relating to the Aircraft or
such Engines issued by any competent governmental authority, unless (i) the
validity thereof is being contested in good faith and by appropriate proceedings
which do not involve a non-de minimis danger of the sale, forfeiture or loss of
the Airframe or such Engine or the interest of Lessor therein, any risk of
criminal liability or any material risk of civil liability against Lessor, (ii)
it is not possible for the Lessee (or a Permitted Sublessee) to comply with the
laws of a jurisdiction other than the United States (or other than any
jurisdiction in which the Aircraft is then registered) because of a conflict
with the applicable laws of the United States (or such jurisdiction in which the
Aircraft is then registered), or (iii) it is for minor, unanticipated, or non-
recurring violations that the Lessee is diligently trying to rectify which do
not render the Aircraft liable to any risk of condemnation, destruction, seizure
or confiscation by any authority

          (d)  Maintenance.
               -----------

          The Lessee, at its own cost and expense, shall during the Term
service, repair, maintain, overhaul and test the Aircraft, the Airframe and each
Engine or cause the same to be done in accordance with (1)(i) a maintenance
program approved by the Aeronautical Authority and (ii) maintenance standards
required by, or no less stringent than those required by, the FAA or the central
civil aviation authority of Canada, France, Germany, Japan, The Netherlands or
the United Kingdom, and shall keep or cause to be kept the Aircraft, the
Airframe and each Engine in such operating condition as may be necessary to
enable the airworthiness certification of the Aircraft to be maintained in good
standing at all times under the applicable rules and regulations of the
Aeronautical Authority, except when aircraft of the same type, model or series
as the Airframe (powered by engines of the same type as those with which the
Airframe shall be equipped at the time of grounding) registered in the same
country have been grounded by the Aeronautical Authority, provided, however,
                                                          --------  -------
that if the airworthiness certificate of the Aircraft shall be withdrawn, then,
subject to Section 8 hereof, so long as the Lessee (or a Permitted Sublessee) is
taking or causing to be taken all necessary action to promptly correct the
condition which caused such withdrawal, no Event of Default shall arise from
such withdrawal and (2) except during periods when a Sublease is in effect, the
same standards Lessee uses with respect to similar aircraft of similar size in
its fleet operated (whether owned or leased) by Lessee in similar circumstances
and during any period in which a Sublease is in effect, the same standards the
Permitted Sublessee uses with respect to similar aircraft of similar size in its
fleet and operated (whether owned or leased) by the Permitted Sublessee in
similar circumstances. Nothing herein shall be deemed to prevent the Lessee (or
a Permitted Sublessee) from taking the Aircraft out of service for maintenance
or modifications permitted hereunder or storage in accordance with applicable
Aeronautical Authority requirements and sound practice for such storage
(provided that, without the consent of the Lessor, which consent shall not be
unreasonably withheld, no such period of storage shall exceed twelve consecutive
months).  The Lessee shall maintain or cause to be maintained all records, logs
and other documents required by the Aeronautical Authority to be maintained in
respect of the Aircraft in English.  Lessee further

                                       13
<PAGE>

agrees that the Aircraft, Airframe and Engines will be maintained, used,
serviced, repaired, overhauled or inspected in compliance with Applicable Law
with respect to the maintenance of the Aircraft and compliance with each
applicable airworthiness certificate, license and registration relating to the
Aircraft, Airframe or any Engine issued by the Aeronautical Authority.

               (e)  Registration
                    ------------

               Except as otherwise permitted by Section 4.02(b) of the
Supplemental Agreement, or as otherwise required by the Transportation Code or
rules, regulations, or orders promulgated thereunder, or to the extent that such
registration cannot be effected or continued due to the Lessor's failure to
comply with the citizenship or other eligibility requirements for registration
of commercial aircraft under the Transportation Code or any rule, regulation or
order promulgated thereunder, the Aircraft shall be duly registered in the name
of the Lessor under the Transportation Code at all times during the Term;
provided that the Lessor shall execute and deliver all such documents as the
--------
Lessee may reasonably request for the purpose of effecting, continuing or (as
provided in this Section 5(e) hereof and Section 4.02(b) of the Supplemental
Agreement) changing such registration.

Section 6.     Inspection.
               ----------

               At all reasonable times during the Term, but upon at least 5
Business Days' prior notice to the Lessee (unless an Event of Default shall have
occurred and be continuing, in which event no prior notice of any kind is
required) and at a time and place reasonably acceptable to the Lessee, the
Lessor or its authorized representatives (which may include the Manufacturer)
may at its own expense and risk conduct a visual walk-around inspection of the
Aircraft and any Engine (including a visual walk-around inspection of the
Aircraft during any "C" check or other heavy maintenance) and may inspect the
books and records of the Lessee relating to the operation and maintenance
thereof and the Lessee shall provide copies of such books and records to the
Lessor or its authorized representatives at its reasonable request; provided
                                                                    --------
that (a) any such inspection shall be subject to the safety, security and
workplace rules applicable at the location where such inspection is conducted
and any applicable governmental rules or regulations, (b) in the case of an
inspection during a maintenance visit, such inspection shall not interfere with
the normal conduct of such maintenance visit or extend the time required for
such maintenance visit or, in any event, at any time interfere with the use or
operation of the Airframe or any Engine or with the normal conduct of the
Lessee's or a Permitted Sublessee's business, and (c) the Lessee shall not be
required to undertake or incur any additional liabilities in connection with any
such inspection. All information obtained in connection with any such inspection
shall be held confidential by the Lessor and shall not be furnished or disclosed
by it to anyone other than its bank examiners, auditors, accountants, agents and
legal counsel and any Person with whom the Lessor is conducting negotiations
relating to the possible transfer and sale of Lessor's Estate, if such Person
shall have entered into an agreement similar to that contained in this Section 6
whereby such Person agrees to hold such information confidential, and except as
may be required by an order of any court or administrative agency or by
                                       14
<PAGE>

any statute, rule, regulation or order of any governmental authority or as may
be necessary to enforce the terms of this Lease. The Lessor shall have no duty
to make any such inspection and shall not incur any liability or obligation by
reason of not making any such inspection.

               If requested by Lessor, Lessee shall provide, or shall cause any
Permitted Sublessee to provide, the date (if then scheduled) upon which the
Airframe undergoes its next scheduled major check and, with respect to any
Engine, the next scheduled off the Airframe maintenance, and shall advise Lessor
of the name and location (if then known) of the relevant maintenance performer.

 Section 7.    Replacement and Pooling of Parts; Alterations,
               Modifications and Additions; Substitution of Engines.
               ----------------------------------------------------

               (a)  Replacement of Parts.
                    --------------------

               Except as otherwise provided in the proviso to the third sentence
of Section 7(d) or if the Airframe or an Engine to which a Part relates has
suffered an Event of Loss, the Lessee, at its own cost and expense, will during
the Term promptly replace all Parts that may from time to time become worn out,
lost, stolen, destroyed, seized, confiscated, damaged beyond repair or
permanently re ndered unfit for use for any reason whatsoever.  In addition, in
the ordinary course of maintenance, service, repair, overhaul or testing, the
Lessee (or a Permitted Sublessee), at its own cost and expense, may remove any
Parts, whether or not worn out, lost, stolen, destroyed, seized, confiscated,
damaged beyond repair or permanently rendered unfit for use, provided that the
                                                             --------
Lessee (or such Permitted Sublessee), at its own cost and expense, shall, except
as otherwise provided in the proviso to the third sentence of Section 7(d),
replace such Parts as promptly as practicable with replacement Parts or
temporary replacement parts as provided in Section 7(c) hereof.  All replacement
Parts shall be free and clear of all Liens except for pooling arrangements to
the extent permitted by Section 7(c) and Permitted Liens and shall be in as good
operating condition as, and shall have a value and utility at least equal to,
the Parts replaced assuming such replaced Parts were in the condition and repair
required to be maintained by the terms hereof.

               (b)  Title to Parts.
                    --------------

               Except as otherwise provided in the proviso to the third sentence
of Section 7(d), all Parts at any time removed from the Airframe or any Engine
shall remain the property of the Lessor and subject to this Lease, no matter
where located, until such time as such Parts shall be replaced by Parts that
have been incorporated or installed in or attached to such Airframe or Engine
and that meet the requirements for replacement Parts specified in Section 7(a).
Immediately upon any replacement Part becoming incorporated or installed in or
attached to an Airframe or Engine as provided in Section 7(a), without further
act, (i) title to the replaced Part shall thereupon vest in the Lessee (or the
relevant Permitted Sublessee), in "as-is, where-is" condition without any
representation or warranty by, or recourse to, Lessor, free and clear of all
rights of the Lessor and any Lessor's Liens

                                       15
<PAGE>

and shall no longer be deemed a Part hereunder; (ii) title to such replacement
Part shall thereupon vest in the Lessor, free and clear of all Liens (other than
Permitted Liens); and (iii) such replacement Part shall become subject to this
Lease and be deemed part of such Airframe or Engine, as the case may be, for all
purposes hereof to the same extent as the Parts originally incorporated or
installed in or attached to such Airframe or Engine.

          (c)  Pooling or Parts Leasing.
               ------------------------

          Any Part removed from the Airframe or from any Engine as provided in
Section 7(a) may be subjected by the Lessee (or a Permitted Sublessee) to a
pooling or parts leasing agreement or arrangement of a type customary in the
airline industry entered into in the ordinary course of the Lessee's (or such
Permitted Sublessee's) business, provided the part replacing such removed Part
shall be incorporated or installed in or attached to such Airframe or Engine in
accordance with Sections 7(a) and 7(b) as promptly as practicable after the
removal of such removed Part.  In addition, any replacement part when
incorporated or installed in or attached to the Airframe or any Engine in
accordance with Section 7(a) may be owned by another airline or vendor as
customary in the airline industry, subject to a pooling or parts leasing
arrangement, provided that the Lessee (or a Permitted Sublessee), at its expense
             --------
as promptly thereafter as reasonably practicable, either (i) causes title to
such temporary replacement part to vest in the Lessor in accordance with Section
7(b) by the Lessee (or such Permitted Sublessee) acquiring title thereto for the
benefit of the Lessor free and clear of all Liens except Permitted Liens, at
which time such temporary replacement part shall become a Part and become
subject to this Lease or (ii) replaces such temporary replacement part by
incorporating or installing in or attaching to such Airframe or Engine a further
replacement Part owned by the Lessee (or such Permitted Sublessee) free and
clear of all Liens except Permitted Liens and by causing title to such further
replacement Part to vest in the Lessor in accordance with Section 7(b).

          (d)  Alterations, Modifications and Additions.
               ----------------------------------------

          The Lessee, at its own expense, shall make (or cause to be made)
alterations and modifications in and additions to the Airframe and any Engine as
may be required to be made from time to time during the Term by Applicable Law
or in order to maintain the insurance required under Section 9 regardless of
upon whom such requirements are, by their terms, nominally imposed; provided,
                                                                    --------
that the Lessee may, in good faith and with due diligence and by appropriate
procedure, contest the validity or application of any such standard in any
reasonable manner which does not materially adversely affect the interests of
the Lessor and does not involve any non-de minimis risk of sale, forfeiture or
loss of the Aircraft or the interest of Lessor therein, any non-de minimis risk
of civil penalty, or any risk of criminal liability, being imposed on Lessor.
In addition, the Lessee (or a Permitted Sublessee), at its own expense, may from
time to time make or cause to be made such alterations and modifications in and
additions to the Airframe and any Engine as the Lessee (or such Permitted
Sublessee) may deem desirable in the proper conduct of its business including,
without

                                       16
<PAGE>

limitation, removal of Parts which Lessee (or such Permitted Sublessee) deems
are obsolete or no longer suitable or appropriate for use in the Aircraft,
Airframe or such Engine so long as the aggregate value of such removed Parts
(based on their value as of the Delivery Date) does not exceed $200,000,
provided further that no such alteration, modification or addition diminishes
--------
the value, utility, condition or airworthiness of such Airframe or Engine below
the value, utility, condition or airworthiness thereof immediately prior to such
alteration, modification or addition, assuming such Airframe or Engine was then
in the condition required to be maintained by the terms of this Lease, except
that the value (but not the utility, condition or airworthiness) of the Aircraft
may be reduced by the value of Parts which the Lessee (or such Permitted
Sublessee) has removed as permitted above.  Title to all Parts incorporated or
installed in or attached or added to the Airframe or any Engine as the result of
any alteration, modification or addition effected by the Lessee (or a Permitted
Sublessee) shall, without further act, vest in the Lessor free and clear of any
Liens except Permitted Liens and become subject to this Lease; provided that the
                                                               --------
Lessee (or such Permitted Sublessee) may, at any time during the Term, remove
any such Part from the Airframe or an Engine if (i) such Part is in addition to,
and not in replacement of or in substitution for, any Part originally
incorporated or installed in or attached to such Airframe or Engine at the time
of delivery thereof hereunder or any Part in replacement of, or in substitution
for, any such original Part, (ii) such Part is not required to be incorporated
or installed in or attached or added to such Airframe or Engine pursuant to the
terms of Section 5(d) or the first sentence of this Section 7(d) and (iii) such
Part can be removed from such Airframe or Engine without diminishing or
impairing the value, condition, utility or airworthiness which such Airframe or
Engine would have had at the time of removal had such alteration, modification
or addition not been effected by the Lessee (or such Permitted Sublessee)
assuming the Aircraft was otherwise maintained in the condition required by this
Lease.  Upon the removal by the Lessee (or such Permitted Sublessee) of any such
Part as above provided and the installation of a Replacement Part as provided
herein (if applicable), title to such replaced Part shall, without further act,
vest in the Lessee (or such Permitted Sublessee), in "as-is, where-is" condition
without any representation or warranty by, or recourse to, Lessor, free and
clear of all rights of the Lessor and any Lessor's Liens and such Part shall no
longer be deemed a Part hereunder. Any Part not removed by the Lessee (or a
Permitted Sublessee) as above provided prior to the return of the Airframe or
respective Engine to the Lessor hereunder shall remain the property of the
Lessor.  Lessee shall repair all damage to the Aircraft resulting from any
such installation and/or removal of additions so as to restore the Aircraft to
its condition prior to installation, ordinary wear and tear excepted assuming
the Aircraft was in the condition and repair then required to be maintained by
the terms hereof.

           (e) Substitution of Engines.
               -----------------------

           So long as no Specified Default shall have occurred and be continuing
at the time of notice or completion of the substitution of a Replacement Engine,
the Lessee (or a Permitted Sublessee) shall have the right at its option at any
time, on at least 30 days' prior notice to the Lessor, to substitute, and if an
Event of Loss shall have occurred with respect to an Engine under

                                       17
<PAGE>

circumstances in which there has not occurred an Event of Loss with respect to
the Airframe, shall within 120 days of the occurrence of such Event of Loss and
on at least five days' prior notice to the Lessor substitute, a Replacement
Engine for any Engine not then installed or held for use on the Airframe. In
such event, immediately upon the effectiveness of such substitution on the date
set forth in such notice and without further act, (i) title to the Replacement
Engine shall thereupon vest in the Lessor free and clear of all Liens (other
than Permitted Liens), (ii) title to the replaced Engine shall thereupon vest in
the Lessee (or its designee), in "as-is, where-is" condition without any
representation or warranty by, or recourse to, Lessor, free and clear of all
rights of the Lessor and any Lessor's Liens and shall no longer be deemed an
Engine hereunder, and (iii) such Replacement Engine shall become subject to this
Lease and be deemed part of the Aircraft for all purposes hereof to the same
extent as the Engine originally installed on or attached to the Airframe. At the
time of the substitution of a Replacement Engine, the following conditions shall
be satisfied at the Lessee's sole cost and expense and the parties agree to, at
the reasonable request of the Lessee, cooperate with the Lessee to the extent
necessary to enable it to timely satisfy such conditions:

                    (i)  the following documents shall be duly authorized,
          executed and delivered by the respective party or parties thereto, and
          an executed counte rpart of each shall be delivered to the Lessor:

                         (A)  a Lease Supplement covering the Replacement
                    Engine, which shall have been duly filed for recordation
                    with the FAA;

                         (B)  a full warranty bill of sale (as to title and
                    Liens), in form and substance satisfactory to the Lessor,
                    covering the Replacement Engine, executed by the owner
                    thereof in favor of the Lessor;

                         (C)  "precautionary" Uniform Commercial Code financing
                    statements as are deemed necessary or desirable by counsel
                    for the Lessor to protect the ownership interests of the
                    Lessor in the Replacement Engine;

                         (D)  an Officer's Certificate of the Lessee certifying
                    that the Replacement Engine is of at least equal value,
                    remaining useful life and utility, and in as good operating
                    condition, as the Engine it replaces assuming such Engine
                    had been maintained in the condition required hereunder;

                         (E)  an opinion of qualified FAA counsel as to the due
                    recordation of the Lease Supplement and all other documents
                    or instruments the recordation of which is necessary to
                    perfect and protect the rights of the Lessor in the
                    Replacement Engine;

                                      18
<PAGE>

                    (F) to the extent that an engine warranty in respect of such
          Replacement Engine is available to the Lessee, an engine warranty
          assignment covering such Replacement Engine, in substantially the form
          of the Engine Warranty Assignment or otherwise in such form and
          substance satisfactory to the Lessor and a consent to such engine
          warranty assignment, in substantially the form of the Engine Warranty
          Assignment or otherwise in such form and substance satisfactory to the
          Lessor;

                    (G) evidence of compliance with the insurance provisions of
          Section 9 with respect to such Replacement Engine; and

                    (H) if requested by Lessor, Lessor shall have received an
          appraisal satisfactory to it confirming that the Replacement Engine
          satisfies the conditions set forth in the definition thereof;

          (ii)   the Lessee shall furnish (or cause to be furnished to) the
     Lessor with an opinion, reasonably satisfactory in form and substance to
     the Lessor, of the Lessee's counsel, which may be the Lessee's General
     Counsel or Associate General Counsel, to the effect that such bills of sale
     or other documents reasonably requested by the Lessor are sufficient to
     convey good and marketable title to such Replacement Engine to the Lessor;
     and

          (iii)  at Lessor's option (x) the Lessor shall have received an
     opinion of independent tax counsel (selected by the Lessor and reasonably
     acceptable to the Lessee), reasonably satisfactory to the Lessor, to the
     effect that there shall be no risk of adverse tax consequences resulting
     from such replacement (and the Lessor shall use its reasonable efforts to
     cause a timely opinion to be delivered) or (y) the Lessee shall have
     provided, or caused to be provided, an indemnity in respect of any adverse
     tax consequences reasonably satisfactory in form and substance to the
     Lessor.

     Upon satisfaction of all conditions to such substitution, (x) the Lessor
shall, at the expense of the Lessee, execute and deliver to the Lessee such
bills of sale and other documents and instruments as the Lessee shall reasonably
request to evidence the transfer to the Lessee and vesting of all right, title
and interest in and to the replaced Engine in the Lessee, in "as-is, where-is"
condition without any representation or warranty by, or recourse to, Lessor,
free and clear of all right, title and interest of the Lessor and any Lessor's
Liens; (y) the Lessor shall, at the request and expense of the Lessee, assign to
the Lessee all claims it may have against any other Person relating to an Event
of Loss giving rise to such substitution (other than those in respect of
insurance maintained by the Lessor pursuant to Section 9(f)) and (z) the Lessee
shall be entitled to receive all insurance proceeds (other than those reserved
to others under Section 9(f) hereof) and proceeds in

                                       19
<PAGE>

respect of any Event of Loss giving rise to such replacement to the extent not
previously applied to the purchase price of the Replacement Engine as provided
in Sections 9(e)(i) and 8(e)(ii).

 Section 8.    Loss, Destruction or Requisition.
               --------------------------------

               (a)  Event of Loss with Respect to the Airframe.
                    ------------------------------------------

               Upon the occurrence of an Event of Loss with respect to the
Airframe, the Lessee shall forthwith (and in any event within 5 Business Days
after such occurrence) give the Lessor notice of such Event of Loss. The Lessee
shall, within 60 days after such occurrence, give the Lessor written notice of
its election to perform one of the following options (it being agreed that if
the Lessee shall not have given the Lessor such notice of such election, the
Lessee shall be deemed to have elected to perform the option identified in the
following clause (ii)):

                    (i)  subject to the satisfaction of the conditions contained
               in Section 8(d), on a date not more than 180 days after the
               occurrence of the Event of Loss (or, if earlier, the last day of
               the Term), convey or cause to be conveyed to the Lessor, and to
               be leased by the Lessee hereunder in replacement of the Airframe
               and Engines with respect to which the Event of Loss occurred, a
               Replacement Airframe (together with the same number of
               Replacement Engines as the number of Engines, if any, which were
               subject to such Event of Loss), such Replacement Airframe and
               Replacement Engines to be free and clear of all Liens except
               Permitted Liens and to have a remaining useful life, estimated
               residual value, value and utility at least equal to the Airframe
               and Engines, if any, so replaced (assuming such Airframe and
               Engines were in the condition and repair required by the terms
               hereof) and to be an airframe that is the same model and same or
               later vint age as the Airframe to be replaced thereby, or an
               improved model; provided that, if the Lessee shall not perform
                               -------- ----
               its obligation to effect such replacement under this clause (i)
               during the 180-day period of time provided herein (or, if
               earlier, the last day of the Term), it shall give the Lessor
               notice to such effect upon or before the expiration of such
               period of time and shall promptly pay on the first Termination
               Date next following the thirtieth (30th) day after the date of
               such notice to the Lessor (or, if earlier, the last day of the
               Term), in immediately available funds, the amount specified in
               clause (ii) below; and provided further, that in the event the
                                      -------- -------
               Lessor is not, prior to the 90/th/ day following such Event of
               Loss, holding the proceeds of insurance paid to the Lessor (as
               loss payee) as a result of such Event of Loss in an amount at
               least equal to the applicable Termination Value, the Lessee shall
               provide collateral (in a form reasonably acceptable to the
               Lessor) in such amount (or if such insurance proceeds are being
               so held at such time by the Lessor but are in an amount less than
               Termination Value, in the amount of such deficiency) to the
               Lessor, which collateral shall be released to the Lessee upon the
               earlier of (x) performance by the Lessee of

                                       20
<PAGE>

          its obligations under this Section 8(a) or (y) the proceeds of such
          insurance in such required amount being paid to Lessor (as loss payee
          pursuant to Section 9); or

               (ii) pay or cause to be paid to the Lessor in immediately
          available funds, on a date which shall be a Termination Date not more
          than 180 days after the occurrence of the Event of Loss, an amount
          equal to (A) the arrears portion, if any, of Basic Rent payable on
          such Termination Date, together with all unpaid Basic Rent, if any,
          payable before such Termination Date plus (B) all unpaid Supplemental
          Rent (other than Termination Value) due on or before such payment
          date, plus (C) the Termination Value for the Aircraft determined as of
          such Termination Date or, if such Termination Date is beyond the end
          of the Term, the Termination Value as of the last Termination Date of
          the Term plus (D) all out-of-pocket expenses (including reasonable
          attorneys' fees) incurred by the Lessor in connection with such Event
          of Loss.

          (b)  Effect of Replacement.
               ---------------------

          Should the Lessee have provided a Replacement Aircraft as provided for
in Section 8(a)(i), (i) this Lease shall continue with respect to such
Replacement Aircraft as though no Event of Loss had occurred; (ii) the Lessor
shall, at the expense of Lessee, convey "as-is, where-is", without
representation, recourse or warranty except for a warranty against Lessor's
Liens, to the Lessee all right, title and interest of the Lessor, in and to the
Airframe and the Engine or Engines, if any, installed on the Airframe upon the
occurrence of the Event of Loss by executing and delivering to the Lessee such
bills of sale and other documents and instruments as the Lessee may reasonably
request to evidence such conveyance; (iii) the Lessor shall, at the request and
expense of Lessee, assign to the Lessee all claims it may have against any other
Person arising from the Event of Loss (except with respect to insurance obtained
in accordance with Section 9(f)) and (iv) the Lessee shall be entitled to
receive all insurance proceeds (other than those reserved to others under
Section 9(f)) and proceeds from any award in respect of condemnation,
confiscation, seizure or requisition, including any investment interest thereon,
to the extent not previously applied to the purchase price of the Replacement
Aircraft as provided in Sections 9(e)(iii) and 8(e)(i).

          (c)  Effect of Termination Value Payment.
               -----------------------------------

          In the event of a payment in full of the Termination Value for the
Aircraft and other Rent payable as provided in Section 8(a)(ii), (i) this Lease
and the obligations of the Lessee to pay Rent (except for Supplemental Rent
obligations which survive pursuant to Section 3(c) and Articles 6 and 7 of the
Supplemental Agreement or the Tax Indemnity Agreement or which have accrued but
have not otherwise been paid as of the date of such payment) shall terminate and
the Term shall end, (ii) any remaining insurance proceeds (other than those
reserved to others under Section 9(f)), including any investment interest
thereon, shall be promptly paid over to the Lessee; and (iii) the

                                       21
<PAGE>

Lessor, at the expense of Lessee, shall convey, "as-is, where-is" without
representation, recourse or warranty, except for a warranty against Lessor's
Liens attributable to Lessor, to the Lessee all right, title and interest of the
Lessor in and to the Airframe and Engines and shall execute and deliver to the
Lessee such bills of sale and other documents and instruments as the Lessee may
reasonably request to evidence such conveyance.

          (d)  Conditions to Airframe Replacement.
               ----------------------------------

          The Lessee's right to substitute a Replacement Aircraft as provided in
Section 8(a)(i) shall be subject to the fulfillment, at the Lessee's sole cost
and expense, in addition to the conditions contained in such Section 8(a)(i), of
the following conditions precedent:

               (i)  On the date when the Replacement Aircraft is delivered to
          the Lessor (such date being referred to in this Section 8(d) as the
          "Replacement Closing Date"), no Specified Default shall have occurred
          and be continuing and the Lessor shall have received an Officer's
          Certificate so certifying;

               (ii) On the Replacement Closing Date the following documents
          shall have been duly authorized, executed and delivered by the
          respective party or parties thereto and shall be in full force and
          effect, and an executed counterpart of each thereof (or, in the case
          of the FAA Bills of Sale (or a comparable document, if any, of another
          Aeronautical Authority, if applicable) referred to below, a photocopy
          thereof) shall have been delivered to the Lessor:

                    (i)    a Lease Supplement covering the Replacement Aircraft,
               which shall have been duly filed for recordation with the FAA;

                    (ii)   an FAA Bill of Sale (or a comparable document, if
               any, of another Aeronautical Authority, if applicable) covering
               the Replacement Aircraft, executed by the owner thereof in favor
               of the Lessor, and dated the Replacement Closing Date;

                    (iii)  a full warranty (as to title and Liens) bill of sale,
               in form and substance satisfactory to the Lessor, covering the
               Replacement Aircraft, executed by the owner thereof in favor of
               the Lessor, dated the Replacement Closing Date and guaranteed by
               the Lessee;

                    (iv)   such "precautionary" Uniform Commercial Code
               financing statements as are deemed necessary or desirable by
               counsel for the Lessor to protect the ownership interests of the
               Lessor in the Replacement Aircraft;

                                       22
<PAGE>

                    (v)   an Officer's Certificate of the Lessee certifying that
               the Replacement Aircraft is a Canadair Regional Jet Series 200 ER
               aircraft of a more advanced model, is in as good operating
               condition as, and has a value, remaining useful life, estimated
               residual value and utility at least equal to, the Aircraft it
               replaces, assuming such Aircraft had been maintained in the
               condition required hereunder;

                    (vi)  a residual value agreement which is either (x) a
               renewal of the Residual Agreement, or (y) a residual value
               agreement that is substantially identical to the Residual
               Agreement, covering the Replacement Aircraft; and

                    (vii) a deficiency agreement which is either (x) a renewal
               of the Deficiency Agreement, or (y) a deficiency agreement that
               is substantially identical to the Deficiency Agreement, covering
               the Replacement Aircraft;

               (iii)  On or before the Replacement Closing Date, the Lessor
     (acting directly or by authorization to its special counsel) shall have
     received such documents and evidence with respect to the Lessee or the
     owner of such Replacement Aircraft, as the Lessor or its special counsel
     may reasonably request in order to establish the consummation of the
     transactions contemplated by Section 8(a)(i) and this Section 8(d), the
     taking of all necessary corporate action in connection therewith and
     compliance with the conditions set forth in this Section 8(d), in each case
     in form and substance reasonably satisfactory to the Lessor;

               (iv)   The Lessor (acting directly or by authorization to its
     special counsel) shall each have received satisfactory evidence as to the
     compliance with Section 9 hereof with respect to the Replacement Aircraft;

               (v)    On the Replacement Closing Date, (A) the Lessor shall
     receive good and marketable title to the Replacement Aircraft free and
     clear of Liens (other than Permitted Liens), (B) the Replacement Aircraft
     shall have been duly certified by the Aeronautical Authority as to type and
     airworthiness in accordance with the terms of this Lease, and (C)
     application for registration of the Replacement Aircraft in accordance with
     Section 5(e) shall have been duly made with the Aeronautical Authority;

               (vi)   The Lessor shall have received an appraisal satisfactory
     to it with respect to the Replacement Aircraft;

               (vi)   The Lessor shall have received (acting directly or by
     authorization to its special counsel) (A) an opinion, satisfactory in form
     and substance to the Lessor,

                                       23
<PAGE>

     of counsel to the Lessee (which may be the Lessee's General Counsel) to the
     effect that (x) the bill of sale referred to in clause (ii)(D) above
     constitutes an effective instrument for the conveyance of good and
     marketable title to the Replacement Airframe and Replacement Engines, if
     any, to the Lessor, (y) all documents executed and delivered by the Lessee
     pursuant to this Section 8(d) have been duly authorized, executed and
     delivered by the Lessee and constitute legal, valid and binding obligations
     of, and are enforceable against, the Lessee in accordance with their
     respective terms, and (z) the Lessor is entitled to the benefits of Section
     1110 with respect to such Replacement Aircraft to the same extent as with
     respect to the replaced Aircraft immediately preceding such replacement;
     and (B) an opinion of qualified FAA counsel (or counsel in such
     jurisdiction outside of the United States where the Aircraft may be
     registered in accordance with Section 5(e)), as to, in the case of FAA
     counsel, the due recordation of the Lease Supplement and all other
     documents or instruments the recordation of which is necessary to perfect
     and protect the rights of the Lessor in the Replacement Aircraft or, in the
     case of counsel in another jurisdiction, the taking of all action necessary
     in such jurisdiction for such purposes;

          (viii)  (1) The Lessor shall have received an opinion of independent
     tax counsel (selected by the Lessor and reasonably acceptable to the
     Lessee), reasonably satisfactory to the Lessor, to the effect that there
     shall be no risk of adverse tax consequences resulting from such
     replacement (and the Lessor shall use its reasonable efforts to cause a
     timely opinion to be delivered) and (2) the Lessee shall have provided, or
     caused to be provided, an indemnity in respect of any adverse tax
     consequences in form and substance satisfactory to the Lessor.

     Lessee shall promptly reimburse the Lessor for all out-of-pocket costs
(including reasonable attorneys' fees) incurred by it in connection with any
substitution of a Replacement Aircraft pursuant to this Section 8.

     (e)  Non-Insurance Payments Received on Account of an Event of Loss.
          --------------------------------------------------------------

     As between the Lessor and the Lessee, any payments on account of an
Event of Loss (other than insurance proceeds or other payments the application
of which is provided for in this Section 8 or elsewhere in this Lease, as the
case may be, or payments in respect of damage to the business or property of the
Lessee) with respect to the Aircraft, an Engine or any Part received at any time
by the Lessor or by the Lessee from any governmental authority or other Person
will be applied as follows:

          (i)  if such payments are received with respect to an Event of Loss as
     to the Aircraft, and the Airframe or the Airframe and the Engines or
     engines installed

                                       24
<PAGE>

     thereon are being replaced by the Lessee pursuant to Section 8(a)(i), such
     payments shall be paid over to, or retained by, the Lessee, provided that
                                                                 --------
     if the Lessee has not completed such replacement pursuant to the terms of
     this Lease, such payments shall be paid over to, or retained by, the Lessor
     as security, and upon completion of, or in connection with a closing for,
     such replacement, be paid over to or retained by the Lessee;

             (ii)   if such payments are received with respect to an Event of
     Loss to an Engine that has been or is being replaced by the Lessee pursuant
     to the terms hereof, such payments shall be paid over to, or retained by,
     the Lessee, provided that if the Lessee has not completed such replacement
                 --------
     pursuant to the terms of this Lease, such payments shall be paid over to,
     or retained by, the Lessor as security, and upon completion of, or in
     connection with a closing for, such replacement, be paid over to or
     retained by the Lessee; and

             (iii)  if such payments are received with respect to an Event of
     Loss as to the Aircraft, and if the Airframe or the Airframe and the
     Engines or engines installed thereon have not been and will not be replaced
     as contemplated by Section 8(a), (x) so much of such payments as shall not
     exceed the Termination Value required to be paid by the Lessee pursuant to
     Section 8(a) hereof shall be applied in reduction of the Lessee's
     obligation to pay such Termination Value and other amounts, to the extent
     not already paid by the Lessee, and, after the Termination Value and all
     amounts required to be paid to the Lessor pursuant to Section 8(a)(ii)
     above shall be paid in full, shall be applied to reimburse the Lessee for
     such Termination Value up to the full amount thereof, and (y) the balance,
     if any, of such payment remaining thereafter shall be applied to reimburse
     the Lessee and the Lessor for their out-of-pocket costs (including
     reasonable attorney's fees), if any, of procuring such payments, and (z)
     the balance remaining, if any, (i) if attributable to Lessor's loss of its
     residual value in the Aircraft, shall then be paid over to or retained by
     the Lessor, and (ii) if attributable to Lessee's loss of use of the
     Aircraft for the remainder of the Term, shall then be paid over to or
     retained by the Lessee.

     (f)     Requisition for Use.
             -------------------

     In the event of a requisition for use by any government during the
Term of the Airframe and the Engines, if any, or engines installed on the
Airframe (including the Government pursuant to the CRAF Program), the Lessee
shall promptly notify the Lessor of such requisition and, if the same does not
constitute an Event of Loss, all of the Lessee's obligations under this Lease
shall continue to the same extent as if such requisition had not occurred except
to the extent that the performance or observance of any obligation by the Lessee
shall have been prevented or delayed by such requisition, provided that the
                                                          --------
Lessee's obligations for the payment of money and under Section

                                       25
<PAGE>

9 (except, in the case of Section 9, while an assumption of liability by the
government of the United States of the scope referred to in Section 5(c) is in
effect) shall not be reduced, delayed or affected by such requisition. Any
payments received by the Lessor or the Lessee from such government with respect
to the use of such Airframe or Engines during the Term shall be paid over to, or
retained by, the Lessee. Any payments received by the Lessor or Lessee from such
government with respect to the use of the Airframe or Engines after the Term
shall be paid over to, or retained by, Lessor. In the event of an Event of Loss
of an Engine resulting from the requisition for use by a government of such
Engine (but not the Airframe), the Lessee will replace such Engine hereunder by
complying with the terms of Section 7(e) and any payments received by the Lessor
or the Lessee from such government with respect to such requisition shall be
paid over to, or retained by, the Lessee.

               (g)  Certain Payments to be Held As Security.
                    ---------------------------------------

               Any amount referred to in this Section 8 or Section 9 hereof
which is payable to the Lessee shall not be paid to the Lessee, or, if it has
been previously paid directly to the Lessee, shall not be retained by the
Lessee, if at the time of such payment or at any applicable time thereafter, a
Specified Default shall have occurred and be continuing, but shall be paid to
and held by the Lessor as security for the obligations of the Lessee under this
Lease, unless and until applied by Lessor to Lessee's obligations at any time
that an Event of Default shall have occurred and be continuing, and at such time
as there shall not be continuing any Specified Default, to the extent such
amounts have not been so applied, such amount and any gain realized as a result
of Permitted Investments required to be made pursuant to Section 15 shall be
paid over to the Lessee.

 Section 9.    Insurance.
               ---------

               (a)  Public Liability and Property Damage Insurance.
                    ----------------------------------------------

               Subject to the rights of the Lessee under Section 9(d), the
Lessee shall, without expense to the Lessor, maintain or cause to be maintained
in effect at all times during the Term with insurers of nationally or
internationally recognized responsibility public liability insurance (including,
without limitation, aircraft third party, passenger legal liability, property
damage, general third party legal liability and product liability coverage but
excluding manufacturer's product liability coverage) with respect to the
Aircraft in an amount not less than the greater of (i) the amount which Lessee
may carry from time to time on other similar aircraft in its fleet (whether
owned or leased) and (ii) the Minimum Liability Amount; provided that an
                                                        --------
agreement of the Government for the benefit of the Additional Insureds to insure
against or indemnify for substantially the same risks to at least the same
amount shall satisfy the requirements of this Section 9(a), provided that on or
                                                            --------
prior to the date of such agreement, the Lessee shall provide an Officer's
Certificate of the Lessee certifying that any such insurance or indemnity
provides protection no less favorable than insurance coverage that would comply
with this Section 9.  Such insurance shall be of the type usually carried

                                       26
<PAGE>

by the Lessee with respect to similar aircraft and engines, and covering risks
of the kind customarily insured against by the Lessee.

          During any period that the Aircraft is grounded and not in operation,
the Lessee may modify the insurance required by this Section 9(a) to modify the
amounts of public liability and property damage insurance, the scope of the
risks covered and the type of insurance, in all circumstances to conform to such
insurance customary in the United States airlines industry for regional air
carriers similarly situated with the Lessee in respect of similar aircraft which
are grounded, not in operation, and stored or hangared, except that in all
instances, the amounts of coverage and scope of risk covered and the type of
insurance shall be at a minimum no less favorable than the insurance as from
time to time applicable to aircraft owned or leased by Lessee on the ground, not
in operation, and stored or hangared.

          (b)  Insurance Against Loss or Damage to the Aircraft and Engines.
               ------------------------------------------------------------

          Subject to the rights of the Lessee under Section 9(d), the Lessee
shall, without expense to the Lessor, maintain or cause to be maintained in
effect at all times during the Term with insurers of nationally recognized
responsibility (i) all risk, agreed value, ground and flight hull insurance,
which may, except as provided below, exclude war risks and allied perils,
covering the Aircraft for an amount at all times (even when the Aircraft is
grounded or in storage) not less than the Termination Value from time to time;
provided that, neither the Lessee nor any Permitted Sublessee shall be required
-------- ----
to maintain all-risk flight aircraft hull insurance with respect to any period
in which the Aircraft is grounded and properly stored or hangared.  Such
insurance shall not provide insurers with a right to replace the Airframe or any
Engine with another airframe or Engine.  Such hull insurance or other personal
property insurance of the Lessee (or a Permitted Sublessee) shall cover Engines
or engines and Parts temporarily removed from the Airframe, pending replacement
by installation of the same or similar Engines, engines or Parts on the
Airframe.  Such insurance shall be of the type usually carried by the Lessee
with respect to similar aircraft and engines, and covering risks of the kind
customarily insured against by the Lessee. If and to the extent that the Lessee
or a Permitted Sublessee operates the Aircraft (A) on routes where it maintains
war risk, hijacking or allied perils insurance in effect with respect to other
similar owned or leased aircraft in its fleet, (B) on routes (other than routes
within the United States, Canada, Mexico, Bermuda and islands other than Cuba in
the Caribbean Basin) where the custom in the industry is to carry war risk
insurance or (C) in any area of recognized hostilities, the Lessee or such
Permitted Sublessee shall maintain or cause to be maintained such insurance in
effect with respect to the Aircraft in the amount at least equal to Termination
Value from time to time.  An agreement by the Government to insure against or
indemnify for substantially the same risks to at least the same amount will
satisfy any of the requirements of this Section 9(b).

                                       27
<PAGE>

          (c)  Additional Insureds; Loss Payment.
               ---------------------------------

          The Lessee shall cause all policies of insurance carried in accordance
with this Section 9 to name the Additional Insureds as their respective
interests may appear as additional insureds. Such policies shall provide with
respect to such Additional Insureds that (i) none of their respective interests
in such policies shall be invalidated by any act or omission or breach of
warranty or condition contained in such policies by the Lessee or, in the case
of any particular Additional Insured, any other Additional Insured; (ii) no
cancellation or lapse of coverage for nonpayment of premium or otherwise, and no
substantial change of coverage which adversely affects the interests of any such
Additional Insured, shall be effective as to such Additional Insured until 30
days (or such lesser period as may be applicable in the case of any war risk
coverage) after receipt by such Additional Insured of written notice from the
insurers of such cancellation, lapse or change; (iii) they shall have no
liability for premiums, commissions, calls, assessments or advances with respect
to such policies; (iv) such policies will be primary without any right of
contribution from any other insurance carried by such Additional Insureds; (v)
the insurers waive any rights of set-off, counterclaim, deduction or subrogation
against such Additional Insureds; (vi) shall apply worldwide and have no
territorial restrictions or limitations (except, in the case of war, hijacking
or related perils insurance, as otherwise permitted hereunder); and (vii) shall
contain a 50/50% Clause per Lloyd's Aviation Underwriter's Association Standard
Policy Form AVS 103.  Each liability policy shall provide that all the
provisions thereof, except the limits of liability, shall operate in the same
manner as if there were a separate policy covering each insured and each hull
policy shall provide that the exercise by the insurer of rights of subrogation
derived from rights retained by the Lessee will not delay payment of any claim
that would otherwise be payable but for such rights of subrogation.  Each hull
policy shall name the Lessor as loss payee; provided that, so long as the
                                            -------- ----
insurers shall not have received written notice that an Event of Default has
occurred and is continuing, if insurance proceeds in the aggregate equal
$2,000,000 or less, then such proceeds shall be payable to the Lessee and,
notwithstanding the foregoing, any amounts up to  Termination Value (i) of any
proceeds which in the aggregate exceed $2,000,000, (ii) of any proceeds in
respect of a total loss or an Event of Loss or (iii) if the insurers shall have
received written notice that an Event of Default has occurred and is continuing,
any proceeds with respect to any single loss, shall be payable to such loss
payee.

          (d)  Deductibles and Self-Insurance.
               ------------------------------

          The Lessee may from time to time self-insure, by way of deductible or
premium adjustment provisions in insurance policies or otherwise, the risks
required to be insured against pursuant to this Section 9 in such amounts as are
then self-insured with respect to similar owned or leased aircraft in the
Lessee's fleet but in no case shall such self-insurance in the aggregate exceed
on an annual basis, on a per occurrence or on fleetwide basis, an amount equal
to 4% of the Lessee's tangible net worth, calculated as at the end of the
Lessee's immediately preceding fiscal year (but in no event to exceed
$15,000,000).  A deductible per occurrence that is not in excess of the

                                       28
<PAGE>

prevailing standard market deductible for similar aircraft shall be permitted,
for each aircraft in the Lessee's fleet, in addition to such self-insurance.

     (e)     Application of Hull Insurance Proceeds.
             --------------------------------------

     Subject to Section 8(g), as between the Lessor and the Lessee, any
payments received under policies of hull or other property insurance required to
be maintained by the Lessee pursuant to Section 9(b), shall be applied as
follows:

             (i)   if such payments are received with respect to loss or damage
     (including an Event of Loss with respect to an Engine) not constituting an
     Event of Loss with respect to the Airframe, payments in the aggregate of
     $2,000,000 or less shall be paid over to or retained by the Lessee and,
     subject to Section 9(c), any payments which in the aggregate are greater
     than $2,000,000 shall be paid over to or retained by the Lessor for payment
     to the Lessee only upon performance of its repair or replacement
     obligation;

           (ii)    if such payments are received with respect to an Event of
     Loss with respect to the Airframe and the Airframe is not being replaced by
     the Lessee pursuant to Section 8(a)(i), so much of such payments as shall
     not exceed the Termination Value and other amounts required to be paid by
     the Lessee pursuant to Section 8(a)(ii) shall be applied in reduction of
     the Lessee's obligation to pay such amounts if not already paid by the
     Lessee, and to reimburse the Lessee if such amounts shall have been paid,
     and the balance, if any, of such payments shall be promptly paid over to or
     retained by the Lessee; and

           (iii)   if such payments are received with respect to the Airframe
     or the Airframe and Engines or engines installed thereon and the Airframe
     is being replaced by the Lessee pursuant to Section 8(a)(i), such payments
     shall be paid over to, or retained by the Lessee, provided that if the
     Lessee has not completed such replacement and the performance of all other
     obligations under Section 8(d), such payments shall be paid over to, or
     retained by, the Lessor as security, and upon completion of, or in
     connection with a closing for, such replacement, be paid over to or
     retained by the Lessee.

     (f)   Insurance for Own Account.
           -------------------------

     Nothing in this Section 9 shall prohibit the Lessor, the Lessee or any
Additional Insured from obtaining insurance with respect to the Aircraft for its
own account (including, without limitation, in the case of the Lessee, hull
insurance under the same policies maintained pursuant to this Section 9 in
amounts in excess of those required to be maintained pursuant to this Section 9)
and
                                       29
<PAGE>

any proceeds payable thereunder shall be payable as provided in the
insurance policy relating thereto, provided that no such insurance may be
                                   --------
obtained which would limit or otherwise adversely affect the availability of
coverage or payment of any insurance required to be obtained or maintained
pursuant to this Section 9, it being understood that all salvage rights to the
Airframe or the Engines shall remain with the Lessee's insurers at all times.

          (g) Reports, etc.
              ------------

          Lessee will furnish to the Lessor (A) on or prior to the Delivery
Date, insurance certificates describing in reasonable detail the insurance
maintained by Lessee as required pursuant to this Section 9, (B) prior to the
cancellation, lapse or expiration of the insurance policies required pursuant to
this Section 9, evidence of renewal of such insurance policies, and (C) on or
prior to the Delivery Date and on or before the renewal dates of the insurance
policies carried by the Lessee pursuant to this Section 9, a report signed by a
firm of aircraft insurance brokers, not affiliated with the Lessee, appointed by
the Lessee and reasonably satisfactory to the Lessor, stating the opinion of
such firm that all premiums in connection with the insurance then due have been
paid and the insurance then carried and maintained on the Aircraft complies with
the terms hereof and, in the case of renewal insurance, that such renewal
insurance will on and after the effective date thereof so comply with the terms
hereof, provided that all information contained in such report shall be held
        --------
confidential by the Lessor, and shall not be furnished or disclosed by it to
anyone except its legal counsel, insurance brokers or advisors, bona fide
prospective transferees of the Lessor and their respective agents (provided that
                                                                   --------
they shall agree for the benefit of the Lessee to hold all such information
similarly confidential) or as may be required by Applicable Law.  The Lessee
will instruct such firm to give prompt written advice to the Lessor of any
default in the payment of any premium and of any other act or omission on the
part of the Lessee of which it has knowledge and which would in such firm's
opinion invalidate or render unenforceable, in whole or in any material part,
any insurance on the Aircraft.  The Lessee will also instruct such firm to
advise the Lessor in writing at least 30 days prior to the termination or
cancellation of, or material adverse change in, such insurance carried and
maintained on the Aircraft pursuant to this Section 9 (or such lesser period as
may be applicable in the case of war risk coverage).

          (h) Right to Pay Premiums.
              ---------------------

          The Additional Insureds shall have the rights but not the obligations
of an additional named insured.  None of Lessor and the other Additional
Insureds shall have any obligation to pay any premium, commission, assessment or
call due on any such insurance (including reinsurance). Notwithstanding the
foregoing, in the event of cancellation of any insurance due to the nonpayment
of premiums, each of Lessor and the other Additional Insureds shall have the
option, in its sole discretion, to pay any such premium in respect of the
Aircraft that is due in respect of the coverage pursuant to this Lease and to
maintain such coverage, as Lessor or the other Additional Insureds may

                                       30
<PAGE>

require, until the scheduled expiry date of such insurance and, in such event,
Lessee shall, upon demand, reimburse Lessor and the other Additional Insureds
for amounts so paid by them.

Section 10.    Liens.
               -----

               The Lessee shall not during the Term directly or indirectly
voluntarily or involuntarily create, incur, assume or suffer to exist any Lien
on or with respect to the Aircraft, Airframe, any Engine or any Part or title
thereto or any interest therein or in this Lease except (a) the respective
rights of the Lessor and the Lessee as provided herein and the rights of the
parties to the other Operative Agreements; (b) the rights of others under
agreements or arrangements to the extent expressly permitted in Sections 5(b)
and 7(c); (c) Liens for Taxes either not yet due or being contested in good
faith by appropriate proceedings (and for which adequate reserves have been
provided if required in accordance with generally accepted accounting
principles) so long as such proceedings do not involve any non-de minimis risk
of the sale, forfeiture or loss of the Aircraft, Airframe or an Engine or the
interest of Lessor therein or any risk of criminal liability or any material
risk of civil penalty against Lessor; (d) Liens of suppliers, mechanics,
workers, repairers, employees, airport operators, air traffic control
authorities or other like Liens arising in the ordinary course of business and
for amounts the payment of which is either not yet delinquent or is being
contested in good faith (and for the payment of which adequate reserves have
been provided if required in accordance with generally accepted accounting
principles) by appropriate proceedings, so long as such proceedings do not
involve a non-de minimis risk of the sale, forfeiture or loss of the Airframe or
an Engine or the interest of Lessor therein or any risk of criminal liability or
any material risk of civil penalty against Lessor; (e) Liens arising out of
judgments or awards against the Lessee so long as there shall be in effect with
respect to which a stay of execution; (f) Lessor's Liens; (g) salvage and
similar rights of insurers under policies of insurance maintained with respect
to the Aircraft and (h) Liens with respect to which the Lessee (or any
sublessee) has provided a bond or other security adequate in the good faith
opinion of the Lessor. Liens described in clauses (a) through (h) above are
referred to herein as "Permitted Liens." The Lessee shall promptly, at its own
expense, take such action as may be necessary to duly discharge (by bonding or
otherwise) any Lien other than a Permitted Lien arising at any time during the
Term.

Section 11.    Recordation and Further Assurances.
               ----------------------------------

               (a) Recordation of Lease.
                   --------------------

               The Lessee shall cause this Lease, any Lease Supplements, and any
and all additional instruments which shall be executed pursuant to the terms
hereof to be kept, filed and recorded and to be re-executed, refiled and re-
recorded at all times during the Term with the FAA or other Aeronautical
Authority to the extent required to perfect and preserve the Lessor's interest
in the Aircraft and/or as Lessor shall reasonably request.

                                       31
<PAGE>

               (b) Further Assurances.
                   ------------------

               The Lessee and the Lessor will each promptly and duly execute and
deliver to the other such further documents and assurances and take such further
action as the other may from time to time reasonably request in order to more
effectively carry out the intent and purpose of this Lease and to establish and
protect the rights and remedies created or intended to be created in favor of
the Lessor and the Lessee hereunder, including, without limitation, if requested
by the Lessor or the Lessee, the execution and delivery of supplements or
amendments hereto, in recordable form, subjecting any replacement or substituted
aircraft or engine to this Lease and the recording or filing of counterparts
hereof, or of financing statements with respect hereto; provided, however, the
                                                        --------  -------
Lessor will not be required to take any action under this Section 11 to the
extent such action would be inconsistent with the terms of this Lease or impose
any additional liability on Lessor hereunder or under any other Operative
Agreement.

Section 12.    Return of Aircraft and Records.
               ------------------------------

               (a) Return of Aircraft.
                   ------------------

               Upon the termination of this Lease at the expiration of the Term
or upon the earlier termination of this Lease pursuant to the terms hereof,
unless the Lessee shall purchase the Aircraft or there shall have been an Event
of Loss with respect to the Aircraft, the Lessee, at its own expense, shall,
except as otherwise expressly provided herein, return the Airframe by delivering
the same to the Lessor in the continental United States of America at a location
on the Lessee's domestic route system chosen by the Lessee and reasonably
acceptable to the Lessor, fully equipped with two Engines or other General
Electric CF34-3B1 Series 200 engines (or engines of the same manufacturer of a
comparable or an improved model and suitable for installation and use on the
Airframe and owned by the Lessee) duly installed thereon.

               (b) Return of Other Engines.
                   -----------------------

               In the event any engine not owned by the Lessor shall be returned
with the Airframe, such engine shall satisfy the requirements for a Replacement
Engine, shall be free and clear of all Liens other than Lessor's Liens and shall
have a value, remaining useful life, utility and condition at least as great as
the Engine replaced (assuming such Engine was maintained in accordance with the
terms hereof) and the Lessee shall, at its own expense and concurrently with
such return, furnish the Lessor with (i) a full warranty bill of sale guaranteed
by Lessee, in form and substance reasonably satisfactory to the Lessor, (ii) an
Officer's Certificate as described in Section 7(e)(i)(D), and (iii) an opinion
of counsel to the Lessee as described in Section 7(e)(ii), with respect to each
such engine and shall take such other action as required by Section 7(e) to
cause such engine to be a Replacement Engine or as the Lessor may reasonably
request in order that such engine shall be duly and properly titled in the
Lessor free and clear of all Liens other than Lessor's Liens. Upon

                                       32
<PAGE>

passage of title such engine shall be deemed to be an Engine for all purposes
hereof and thereupon the Lessor will transfer to the Lessee, in "as-is, where
is" condition, without recourse or warranty except a warranty against Lessor's
Liens, all right, title and interest of the Lessor or any Affiliate in and to an
Engine not installed on the Airframe at the time of the return thereof.

               (c) Fuel; Records.
                   -------------

               Upon the return of the Aircraft, (i) the Lessor shall have no
obligation with respect to the amount of fuel or oil contained in the Airframe
and (ii) the Lessee shall deliver to the Lessor all logs, manuals, certificates
and inspection, modification and overhaul records which are required to be
maintained with respect thereto under applicable rules and regulations of the
FAA and DOT.

               (d) Condition of Aircraft.
                   ---------------------

               The Aircraft when returned to the Lessor shall be in the
operating condition required by Exhibit F hereto. The obligations of the Lessee
under this Section 12 shall survive the physical return of the of the Aircraft
by the Lessee to the Lessor.

               (e) Storage and Related Matters.
                   ---------------------------

               If Lessor gives written notice to Lessee not less than 60 days
nor more than 180 days prior to the end of the Term requesting storage of the
Aircraft upon its return hereunder, Lessee will provide Lessor, or cause Lessor
to be provided, with outdoor parking facilities for the Aircraft for a period up
to 90 days, commencing on the date of such return, at such storage facility in
the 48 contiguous states of the United States as Lessee may select. Such storage
shall be at Lessor's risk, and Lessor shall pay all applicable storage fees,
except that Lessee shall pay the parking fees for the 90 day storage period;
provided that Lessee shall pay only the parking fees for the initia storage
--------
period of 90 days and Lessor shall bear all maintenance and insurance charges
and other costs incurred relating to such storage.

Section 13.    Renewal Option and Purchase Options.
               -----------------------------------

               (a) Renewal Terms.
                   -------------

               Subject to the final sentence of this Section 13(a), upon
expiration of the Basic Term, the Lessee shall have the right to extend this
Lease for successive periods of one or two years each (each a "Fixed Renewal
Term"), but for not more than an aggregate of three years. Subject to the final
sentence of this Section 13(a), upon expiration of the Basic Term or at the end
of any Fixed Renewal Term, the Lessee shall have the right to extend this Lease
for any number of successive periods of one year each (each a "Fair Market Value
Renewal Term"; each Fixed Renewal Term and each Fair Market Value Renewal Term,
being hereinafter sometimes called a "Renewal Term")

                                       33
<PAGE>

provided that the aggregate term of all Renewal Terms shall not exceed six
years. A Fixed Renewal Term will commence at the end of the Basic Term or the
preceding Fixed Renewal Term, as the case may be and a Fair Market Value Renewal
Term will commence at the end of the Basic Term or the preceding Renewal Term,
as the case may be. Such right to extend this Lease shall be exercised upon
notice to the Lessor, specifying the nature and duration of the Renewal Term,
not less than 210 days nor more than 365 days before the expiration of the Basic
Term or the preceding Renewal Term, as the case may be. Such notice shall be
irrevocable except that in the event the Lessee gives such notice to the Lessor
240 or more days before the end of the Basic Term or the Renewal Term then in
effect, as the case may be, the Lessee may revoke its election to extend this
Lease within 15 days following the determination of the Fair Market Rental Value
of the Aircraft but in no event later than 210 days prior to the end of the
Basic Term or the preceding Renewal Term, as the case may be. If the Lessee
requests a determination of Fair Market Rental Value at least 240 days before
the expiration of the Basic Term or a Renewal Term, as the case may be, the
Lessor and the Lessee shall comply in a timely manner with their respective
obligations under the definition of "Fair Market Rental Value" to allow any
appraisal of Fair Market Rental Value to be completed in sufficient time to
permit the Lessee to exercise the revocation right provided above. If no
Specified Default shall have occurred and be continuing on the date of such
notice or on the date of the commencement of any Renewal Term, then this Lease
shall be extended for the additional period of such Renewal Term as specified in
such notice on the same conditions as provided for herein. The Basic Rent
payable per annum during any Fixed Renewal Term shall be the lesser of (i) the
then Fair Market Rental Value for the Aircraft and (ii) Renewal Rental Rate
identified on Exhibit B. The rental payable per annum during any Fair Market
Value Renewal Term shall be the then Fair Market Rental Value for the Aircraft.
Such rental during each Renewal Term shall be payable semi-annually in arrears.
The Termination Value of the Aircraft during each Renewal Term shall be the Fair
Market Sales Value for the Aircraft at the beginning of such Renewal Term
declining on a straight line basis to the projected Fair Market Sales Value for
the Aircraft at the end of such Renewal Term, but in both cases determined prior
to the commencement of such Renewal Term. Lessee's right to renew this Lease
pursuant to this Section 13(a) is subject to the condition precedent that either
(i) the Lessor shall have agreed in writing with Lessee not to demand payment of
the Payment Amount (as defined in the Residual Agreement) pursuant to Section
4(a) of the Residual Agreement within the period specified therein (unless a
Specified Default shall thereafter occur and be continuing); or (ii) the Lessor
shall have received a residual value agreement which is either (x) a renewal of
the Residual Agreement through the end of the applicable Renewal Term, or (y) a
residual value agreement that is substantially identical to the Residual
Agreement or otherwise fully acceptable to the Lessor from or guaranteed by an
institution, the senior unsecured debt obligations of which are rated "A/A2" or
better by Standard & Poor's Ratings Group or Moody's Investors Service, Inc. and
which (as to clauses (x) and (y)) is in an amount which protects the Lessor's
Net Economic Return through the end of the Renewal Term, and providing residual
value protection as provided in Exhibit B.

                                       34
<PAGE>

               (b) Lessee's Purchase Options.
                   -------------------------

                   (i)   Rights to Purchase.
                         ------------------

               The Lessee shall have the right upon notice as provided herein to
purchase the Aircraft (A) on the EBO Date for a price equal to the EBO Amount;
(B) upon the termination of the Basic Term a price equal to the then Fair Market
Sales Value of the Aircraft; or (C) at the end of any Renewal Term for a price
equal to the then Fair Market Sales Value of the Aircraft, in each case as long
as no Specified Default shall have occurred and be continuing on the date of
purchase. Upon the payment by the Lessee of the purchase price for the Aircraft
and the Basic Rent, if any, payable in arrears on the date of purchase, together
with all unpaid Basic Rent, if any, payable before such date and all
Supplemental Rent then due and payable hereunder together with all sales,
transfer or similar Taxes due or payable in connection with any such purchase,
the Term shall end and the obligations of the Lessee to pay Rent hereunder
(except for Supplemental Rent obligations surviving pursuant to Section 3(c),
Articles 6 and 7 of the Supplemental Agreement or the Tax Indemnity Agreement or
which have otherwise accrued but not been paid as of the date of such payment)
shall cease, and the Lessor shall convey to the Lessee all right, title and
interest of the Lessor in and to the Aircraft on an "as-is, where is" basis,
without representation, recourse or warranty except a warranty against Lessor's
Liens.

                   (ii)  Notice of Exercise of Option.
                         -----------------------------

               The Lessee's right to purchase provided for in clause (B) or (C)
of Section 13(b)(i) shall be exercised upon written notice to the Lessor not
less than 180 days nor more than 365 days before the applicable date of purchase
provided in such clause (B) or (C) as the case may be. Such notice shall be
irrevocable, except that where the purchase price is or may be measured by the
Fair Market Sales Value of the Aircraft the Lessee may revoke its exercise of an
option to purchase the Aircraft within 15 days following the determination of
such Fair Market Sales Value, but in no event later than 180 days prior to the
applicable date of purchase provided in such clause (B) or (C), as the case may
be. The Lessee's right to purchase provided for in clause (A) of Section
13(b)(i) shall be exercised upon written notice to the Lessor not less than 90
days nor more than 365 days before the EBO Date and shall be irrevocable when
given.

Section 14.    Voluntary Termination for Obsolescence.
               --------------------------------------

               (a) Termination by Sale of Aircraft.
                   -------------------------------

               So long as no Specified Default shall have occurred and be
continuing, the Lessee shall have the right at its option five years or more
after commencement of the Basic Term on at least 180 days', but not more than
365 days, prior written notice (which notice shall be irrevocable, except as
provided below) to the Lessor, specifying a proposed date of termination which
shall be a

                                       35
<PAGE>

Termination Date, to terminate this Lease if the chief financial officer of the
Lessee shall have certified in writing to the Lessor that the Aircraft shall
have become obsolete or shall be surplus to the Lessee's equipment requirements.
Subject to the Lessor's preemptive election under Section 14(c), during the
period following the giving of such notice of termination until the Termination
Date, the Lessee, as agent for the Lessor and at no cost or expense to Lessor,
shall endeavor to sell the Aircraft "as is", without any recourse to or
representation or warranty by the Lessor or the Lessee except as to the Lessor's
title, on behalf of the Lessor. If Lessee receives any bid, it shall at least 10
Business Days prior to the proposed day of sale, certify to Lessor in writing
the amount and terms of such bid, such proposed date of sale and the name and
address of the potential buyer (which shall not be Lessee or any Affiliate or
any Person with whom Lessee or any Affiliate has any arrangement or
understanding for the future purchase, lease, operation or use of the Aircraft).
Lessor may also solicit bids directly or through agents other than Lessee. So
long as the Lessor has not exercised its preemptive election under Section
14(c), the Lessee may, by notice to the Lessor, withdraw its notice of
termination at any time on or before the date 10 days prior to the proposed
Termination Date (unless such withdrawal is due to the cancellation of the
proposed purchase of the Aircraft by the potential buyer in which event such
notice may be given at any time on or prior to the proposed Termination Date),
and thereupon this Lease shall continue in full force and effect. Withdrawal of
notice of termination shall not exhaust the Lessee's right to give a further
notice of termination as provided herein; provided that Lessee shall not be
entitled to give more than two such notices (excluding one notice of termination
which has been withdrawn due to the cancellation of the proposed purchase of the
Aircraft by the potential buyer). Unless the Lessee shall withdraw its notice of
termination as stated above or the Lessor shall have made a preemptive election
to take possession of the Aircraft in accordance with Section 14(c), on the
Termination Date, or such other date of sale as shall be consented to in writing
by the Lessor and the Lessee, which date shall thereafter be deemed the
Termination Date, the Lessee shall, upon payment in full of the amounts
described in Section 14(b), deliver the Airframe and Engines or engines
installed thereon to the party which shall have prior to such date submitted the
highest bona fide cash bid to close such sale and purchase of the same, in the
same manner as if delivery were being made to the Lessor pursuant to Section 12,
and shall duly transfer to such party title to any engines which are not Engines
delivered with the Airframe in accordance with the terms of Section 12. The
Lessor shall, in "as-is, where-is" condition, without representation, recourse
or warranty (except a warranty as to the absence of Lessor's Liens),
simultaneously therewith sell and convey title to the Airframe and the Engines
or engines conveyed to the Lessor as provided in Section 12 for cash to such
party. Upon the sale of the Airframe and the Engines or engines conveyed to the
Lessor as provided in Section 12 pursuant to this Section 14 and receipt by the
Lessor of all amounts referred to in Section 14(b), the Lessor will transfer to
the Lessee, in "as-is, where-is" condition, without representation, recourse or
warranty (except a warranty as to the absence of Lessor's Liens), all right,
title and interest of the Lessor in and to any Engines constituting part of the
Aircraft but which were not delivered to the purchaser with the Airframe. The
Lessee shall pay all out of pocket expenses of the Lessor in connection with any
termination or proposed termination of this Lease except that Lessee shall not

                                       36
<PAGE>

be responsible for such expenses of the Lessor in the event the Lessor exercises
its preemptive election under Section 14(c) and thereafter fails to perform its
obligations under such Section.

               (b) Payments Due Upon Sale of Aircraft.
                   ----------------------------------

               The total selling price realized at any sale of the Airframe and
Engines or engines installed thereon in accordance with this Section 14 shall be
retained by the Lessor and, in addition, on the Termination Date, the Lessee
shall pay to the Lessor, in immediately available funds, an amount equal to the
sum of (A) the excess, if any, of (x) the Termination Value as of the
Termination Date, over (y) the net proceeds of the sale of the Aircraft, plus
(B) all unpaid Supplemental Rent due on or before the Termination Date, plus (C)
the arrears portion, if any, of Basic Rent payable on such Termination Date,
together with all unpaid Basic Rent, if any, payable before the Termination
Date, plus (D) the fees and expenses of the Lessor in connection therewith, plus
(E) any sales, transfer or similar Taxes incurred on such sale.

               (c) Preemptive Election by Lessor.
                   -----------------------------

               Notwithstanding the foregoing provisions of this Section 14, the
Lessor may, not later than 90 days prior to the proposed Termination Date,
notify the Lessee of its preemptive election to take possession of the Aircraft.
In any such case, upon payment of any Basic Rent due on such Termination Date
and any other amounts due under this Lease, the Lessee shall have no obligation
to pay Termination Value.  On the Termination Date, if the Lessor shall have
exercised its preemptive election to retain the Aircraft in accordance with the
terms of this Section 14(c), the Lessee shall deliver the Airframe and Engines
or engines installed thereon to the Lessor in accordance with Section 12 and
shall pay all unpaid Basic Rent, if any, payable before the Termination Date,
together with all Basic Rent (if payable in arrears) due on such Termination
Date, all unpaid Supplemental Rent due on or before or after the Termination
Date, and the Lessor shall transfer to the Lessee title to any Engines
constituting part of the Airframes but which were not then installed on the
Aircraft as provided in Section 12(b).  If the Lessor, having given notice of a
preemptive election, shall fail to perform any of its obligations pursuant to
this Section 14(c) and as a result thereof this Lease shall not be terminated on
a proposed Termination Date and shall continue in full force and effect, the
Lessee may at its option at any time thereafter submit a new termination notice
(and in connection with any such notice, Lessor shall be entitled to exercise
its preemptive election pursuant to this Section 14(c)).

               (d) Termination of Lease.
                   --------------------

               Upon delivery by the Lessee of the Airframe and Engines or
engines installed thereon and payment by the Lessee of all amounts payable by
the Lessee or any other party under Section 14(a), 14(b) or 14(c), as the case
may be, the obligations of the Lessee to pay Rent (except for Supplemental Rent
obligations surviving pursuant to Section 3(c) and Articles 6 and 7 of the

                                       37
<PAGE>

Supplemental Agreement or the Tax Indemnity Agreement or which have otherwise
accrued but not paid as of the Termination Date) shall cease and the Term shall
end.

               (e) Effect of No Sale or Preemptive Delivery to Lessor.
                   --------------------------------------------------

               If on the Termination Date no sale of the Aircraft shall have
occurred and the Lessee has not delivered the Aircraft to the Lessor pursuant to
Section 14(c), the Lessee's notice given pursuant to Section 14(a) shall be
deemed to be withdrawn as of such date and this Lease shall continue in full
force and effect.

               (f) No Duty on Part of Lessor.
                   -------------------------

               Lessor shall be under no duty to solicit bids, to inquire into
the efforts of Lessee to obtain bids or otherwise to take any action in
connection with any such sale other than to cooperate with such efforts as
Lessee may reasonably request and to make the transfers described in Section
14(a) so long as any such request by Lessee is not inconsistent with the terms
of this Lease.

Section 15.    Investment of Security Funds.
               ----------------------------

               Any insurance proceeds and other payments in respect of an Event
of Loss (including amounts held by the Lessor pursuant to the second proviso to
Section 8(a)(i), paid to or retained by the Lessor which are required to be paid
to the Lessee or applied for the benefit of the Lessee, but which the Lessor is
entitled to hold under the terms hereof pending the occurrence of some event or
the performance of some act (including, without limitation, the remedying of an
Event of Default), shall, until paid to the Lessee or applied as provided
herein, be held by the Lessor in a segregated account and invested by the Lessor
from time to time at the direction, risk and expense of the Lessee in Permitted
Investments. There shall be promptly remitted to the Lessee any gain (including
interest received) realized as the result of any such investment (net of any
fees, commissions and other expenses, if any, incurred in connection with such
investment) unless a Specified Default shall have occurred and be continuing, in
which case such gains shall be held or applied in accordance with the preceding
sentence. The Lessee will promptly pay to the Lessor, on demand, the amount of
any loss realized as the result of any such investment (together with any fees,
commissions and other expenses, if any, incurred in connection with such
investment). Any other monies paid to or retained by the Lessor which are
required to be paid to the Lessee or applied for the benefit of the Lessee, but
which the Lessor is entitled to hold under the terms hereof pending the
occurrence of some event or the performance of some act (including, without
limitation, the remedying of an Event of Default), may, until paid to the Lessee
or applied as provided herein, be held by the Lessor in the manner of its
discretion and the Lessor shall have no obligation to hold such monies in a
separate account and may commingle such monies with its general or other funds.

                                       38
<PAGE>

Section 16.    Events of Default.
               -----------------

               The following events shall constitute Events of Default and each
such Event of Default shall be deemed to exist and continue so long as, but only
so long as, it shall not have been remedied:

               (a) The Lessee shall fail to make any payment of (i) Basic Rent
     or Termination Value when due and such failure shall continue for a period
     of 10 days or (ii) Supplemental Rent (other than Termination Value) within
     20 days after receipt by the Lessee of a written demand therefor from the
     Lessor;

               (b) The Lessee shall fail to procure and maintain any insurance
     required pursuant to Section 9 or such insurance shall be cancelled or
     lapse; provided that such lapse or cancellation shall not constitute an
            --------
     Event of Default until the earlier of 30 days after receipt by the Lessor
     of notice of such lapse or cancellation or the date that the lapse or
     cancellation is effective as to the Lessor;

               (c) The Lessee shall operate the Aircraft after having received
     notice that the public liability insurance required by Section 9(a) has
     lapsed or has been cancelled (For the avoidance of doubt, the event
     specified in this Section 16(c) is an additional event constituting an
     Event of Default hereunder and is separate and independent from any event
     specified in Section 16(b) above.);

               (d) The Lessee shall fail to perform or observe any other
     covenant or condition to be performed or observed by it hereunder or under
     any other Operative Agreement (other than the Tax Indemnity Agreement), and
     such failure shall continue unremedied for a period of 30 days after
     delivery of notice of such failure from the Lessor to the Lessee, unless
     such failure is curable and the Lessee shall, after the delivery of such
     notice, be diligently proceeding to correct such failure and shall in fact
     correct such failure 135 days after delivery of such notice; provided that,
                                                                  -------- ----
     such additional 135 days period shall not apply to any such failure under
     Section 5(b)(x), 5(e) or 10 of this Lease or Section 4.02(b) or 4.02(e) of
     the Supplemental Agreement;

               (e) Any representation or warranty made by the Lessee herein or
     in any Operative Agreement or in any certificate required to be delivered
     by the Lessee pursuant thereto (other than the Tax Indemnity Agreement)
     shall prove to have been incorrect in any material respect when made and
     shall remain material at the time in question and shall not be remedied
     within 30 days after notice thereof has been given to the Lessee by the
     Lessor, unless such incorrectness is curable and Lessee shall, after
     delivery of such notice, be

                                       39
<PAGE>

     diligently proceeding to correct such failure and shall in fact correct
     such failure 135 days after the delivery of such notice;

               (f) The Lessee shall consent to the appointment of or taking
     possession by a receiver, assignee, custodian, sequestrator, trustee or
     liquidator (or other similar official) of itself or of a substantial part
     of its property, or the Lessee shall admit in writing its inability to pay
     its debts generally as they come due (as provided in 11 U.S.C.
     (S)303(h)(1)), or shall make a general assignment for the benefit of its
     creditors, or the Lessee shall file a voluntary petition in bankruptcy or a
     voluntary petition or answer seeking liquidation, reorganization or other
     relief with respect to itself or its debts under the Federal bankruptcy
     laws, as now or hereafter constituted or any other applicable Federal or
     State bankruptcy, insolvency or other similar law or shall consent to the
     entry of an order for relief in an involuntary case under any such law or
     the Lessee shall file an answer admitting the material allegations of a
     petition filed against the Lessee in any such proceeding, or otherwise seek
     relief under the provisions of any now existing or future Federal or State
     bankruptcy, insolvency or other similar law providing for the
     reorganization or winding-up of corporations, or providing for an
     agreement, composition, extension or adjustment with its creditors;

               (g) An order, judgment or decree shall be entered in any
     proceedings by any court of competent jurisdiction appointing, without the
     consent of the Lessee, a receiver, trustee or liquidator of the Lessee or
     of any substantial part of its property, or any substantial part of the
     property of the Lessee shall be sequestered, and any such order, judgment
     of decree of appointment or sequestration shall remain in force
     undismissed, unstayed or unvacated for a period of 60 days after the date
     of entry thereof;

               (h) A petition against the Lessee in a proceeding under the
     Federal bankruptcy laws or other insolvency laws as now or hereafter in
     effect shall be filed and shall not be withdrawn or dismissed within 60
     days thereafter, or, under the provisions of any law providing for
     reorganization or winding-up of corporations which may apply to the Lessee,
     any court of competent jurisdiction shall assume jurisdiction, custody or
     control of the Lessee or of any substantial part of its property and such
     jurisdiction, custody or control shall remain in force unrelinquished,
     unstayed or unterminated for a period of 60 days;

               (i) So long as Fleet Capital Corporation (or an Affiliate
     thereof) remains as the lender under the Engine Loan Agreement, any "Event
     of Default" shall occur under the Engine Loan Agreement;

               (j) Lessee shall receive notice of default or exercise of
     remedies with respect to the payment or performance of any indebtedness or
     other obligation to any third party (other than the "Lender" under the
     Engine Loan Agreement) and any such default or exercise of

                                       40
<PAGE>

remedies results in an acceleration of such indebtedness or obligation;
provided, however, that the aggregate amount of any such indebtedness or
obligation is in excess of $5,000,000; or

               (k)  the Lessee shall fail to physically return the Aircraft to
     the Lessor at the end of the Basic Term or any Renewal Term; provided
                                                                  --------
     however, without in any way limiting Lessor's claims or remedies against
     -------
     Lessee for any non-compliance by Lessee with its obligations under Section
     12 hereof, Lessee in no instance shall be deemed to have so failed to
     return the Aircraft to the extent such physical return has occurred,
     notwithstanding that the Lessee and Lessor do not agree as to whether the
     conditions of Section 12 has otherwise been complied with by Lessee.

provided that, notwithstanding anything to the contrary contained in this Lease,
--------
any failure of the Lessee to perform or observe any covenant, condition, or
agreement herein shall not constitute an Event of Default under clause (d) and
(k) above if such failure is caused solely by reason of an event referred to in
the definition of "Event of Loss" so long as the Lessee is continuing to comply
                   -------------
with the applicable terms of Section 8.

Section 17.    Remedies.
               --------

               Upon the occurrence of any Event of Default and at any time
thereafter so long as the same shall be continuing, the Lessor may, at its
option, declare this Lease to be in default by a notice to the Lessee (provided
                                                                       --------
that this Lease shall be deemed to have been declared in default without the
necessity of such notice upon the occurrence of any Event of Default described
in paragraph (f), (g) or (h) of Section 16 hereof, and provided further that no
                                                       -------- -------
such declaration shall be a condition to any suit against Lessee or any
Permitted Sublessee for specific performance of a defaulted covenant); and at
any time thereafter, unless the Lessee shall have remedied all outstanding
Events of Default prior to the Lessor (x) having terminated this Lease pursuant
to Section 17(e), (y) taken any action to physically repossess the Aircraft, or
(z) incurred any obligation or commitment to a third party or otherwise
irreversibly changed its position in reliance upon the occurrence and
continuation of such Event of Default, the Lessor may do, and the Lessee shall
comply with, one or more of the following, as the Lessor in its sole discretion
shall elect, to the extent permitted by, and subject to compliance with any
mandatory requirements of, Applicable Law then in effect; provided that during
                                                          --------
any period the Aircraft is subject to the Civil Reserve Air Fleet Program in
accordance with the provisions of Section 5(b) and in the possession of the
United States government or an instrumentality or agency thereof, the Lessor
shall not, on account of any Event of Default, be entitled to do any of the
following in such manner as to limit the Lessee's control under this Lease (or
any sublessee's control under any Sublease permitted by the terms of this Lease)
of any Airframe or any Engines, unless at least 60 days' (or such lesser period,
if any, as may then be applicable under the Military Airlift Command Program of
the United States Government) notice of default hereunder shall have been given
by the Lessor by registered or certified mail to the Lessee (or any sublessee)
with a copy addressed to the Contracting Office Representative for the Military
Airlift

                                       41
<PAGE>

Command of the United States Air Force under any contract with Lessee (or any
sublessee) relating to the Aircraft:

          (a)  By notice, terminate this Lease, whereupon all rights of Lessee
     (and any Permitted Sublessee) to the use of the Aircraft or any part
     thereof shall absolutely cease and terminate but Lessee shall remain liable
     as hereinafter provided; and thereupon cause the Lessee, upon the written
     demand of the Lessor and at the Lessee's expense to, and the Lessee shall,
     promptly return the Airframe and all or such part of the Engines as the
     Lessor may demand to the Lessor at such place in the continental United
     States of America as Lessor shall designate and in the manner and condition
     required by, and otherwise in accordance with all of the provisions of,
     Section 12 as if the Airframe and such Engines were being returned at the
     end of the Term (and in connection therewith, Lessee shall comply with
     Section 12(c)); or the Lessor, at its option, may enter upon the premises
     where the Airframe or any or all Engines are located or reasonably believed
     to be located and take immediate possession of and remove such Airframe or
     Engines, by self-help, summary proceedings or otherwise and the Lessee
     shall comply therewith, all without liability to the Lessor for or by
     reason of such entry or taking possession, whether for the restoration of
     damage to property caused by such taking or otherwise and Lessee hereby
     waives any cause of action relating to the forgoing other than in respect
     of any wilful misconduct or gross negligence of the Lessor; and the Lessee
     shall promptly execute and deliver to the Lessor such instruments of title
     or other documents as the Lessor may deem necessary or advisable to enable
     the Lessor or its agent to obtain possession of the Airframe or the
     Engines, provided that if the Lessee shall for any reason fail to execute
              --------
     and deliver such instruments and documents after such request, the Lessor
     shall be entitled, in a proceeding to which the Lessee shall be a necessary
     party, to a judgment for specific performance, conferring the right to
     immediate possession upon the Lessor and requiring the Lessee to execute
     and deliver such instruments and documents to the Lessor;

          (b)  Sell or otherwise dispose of all or any part of the Aircraft, at
     public or private sale, as the Lessor may determine, or hold, use, operate,
     lease to others or keep idle all or any part of the Aircraft, Airframe or
     any Engine as the Lessor, in its sole discretion, may determine (and in
     connection therewith, Lessor may use Lessee's premises for storage pending
     lease or sale or for holding a sale without liability for rent or costs or
     any other matter whatsoever for a period not to exceed sixty (60) days
     following the date that the Lessor takes actual possession of the Aircraft
     after the occurrence of an Event of Default), in any such case free and
     clear of any rights of the Lessee or any Permitted Sublessee except as
     hereinafter set forth in this Section 17 and without any duty to account to
     the Lessee and any Permitted Sublessee with respect to such action or
     inaction or for any proceeds with respect thereto except, as to the Lessee
     only, to the extent expressly required by paragraph (d) below in the event
     the Lessor elects to exercise its rights under said paragraph in lieu of
     its rights under paragraph (c) below;

                                       42
<PAGE>

          (c)  Whether or not the Lessor shall have exercised, or shall
     thereafter at any time exercise, any of its rights under paragraph (a) or
     paragraph (b) above with respect to the Aircraft, the Lessor, by written
     notice to the Lessee specifying a payment date (which shall be a
     Termination Date) not earlier than 10 days from the date of such notice,
     may require the Lessee to pay to the Lessor, and the Lessee shall pay to
     the Lessor, on the payment date specified in such notice, as liquidated
     damages for loss of a bargain and not as a penalty, any installment of
     Basic Rent due on (if payable in arrears) or before such payment date plus
     an amount equal to the excess, if any, of (i) Termination Value for the
     Aircraft, determined as of such payment date over (ii) either (as the
     Lessor may elect in its sole discretion) (x) the Fair Market Sales Value
     for the Aircraft, computed as of the payment date specified pursuant to
     this paragraph (c), or (y) the aggregate Fair Market Rental Value of such
     Aircraft for the remainder of the Term, after discounting such aggregate
     Fair Market Rental Value to present value as of the payment date specified
     in this paragraph (c) at an annual rate of 12.5%, together with, in either
     such case, interest, to the extent permitted by Applicable Law, at the Past
     Due Rate on the amount of such excess, if any, from such payment date
     specified pursuant to this paragraph (c), to the date of actual payment of
     such amount, and any unpaid Supplemental Rent due hereunder on the payment
     date specified in such notice; provided that, in any such instance in which
                                    -------- ----
     the Lessor is unable to repossess the Aircraft due to circumstances not
     relating to or caused by any Lessee Person and the Fair Market Sales Value
     and Fair Market Rental Value thereof is deemed to be zero, upon receipt of
     any such payment under this clause (c) and all other amounts due hereunder,
     the Lessor shall convey, as-is, where-is, without recourse, warranty or
     representation, other than a warranty against Lessor's Liens, to the Lessee
     all right, title and interest of the Lessor in and to the Airframe and
     Engines, and execute and deliver to the Lessee such bills of sale and other
     documents and instruments as the Lessee may reasonably request to evidence
     such conveyance;

          (d)  In the event the Lessor, pursuant to paragraph (b) above, shall
     have sold the Aircraft upon five (5) Business Days notice to the Lessee,
     the Lessor, in its sole discretion, in lieu of exercising its rights under
     paragraph (c) above with respect to the Aircraft, may, if it shall so
     elect, require the Lessee to pay the Lessor, and the Lessee shall pay to
     the Lessor, on the date of such sale, as liquidated damages for loss of a
     bargain and not as a penalty (in lieu of the Basic Rent due after the date
     on which such sale occurs but in addition to any installment of Basic Rent
     due on (if payable in arrears) or up to the date on which such sale
     occurs), the amount of any deficiency of the net proceeds of such sale
     (after deducting all costs, charges and expenses, including the cost of
     discharging all Liens, on the Aircraft and all legal fees and disbursements
     incurred by Lessor as a result of the Event of Default and/or the exercise
     of its remedies with respect thereto) below the Termination Value of the
     Aircraft, determined as of the Termination Date immediately preceding the
     date of such sale, together with interest, to the extent permitted by
     Applicable Law, at the Past Due Rate on the amount of such deficiency from
     such Termination Date to the date of actual payment, and any unpaid
     Supplemental Rent due hereunder on the date of such sale;

                                       43
<PAGE>

          (e)  Rescind, cancel or terminate this Lease or exercise any other
     right or remedy which may be available under Applicable Law or proceed by
     appropriate court action to enforce the terms hereof;

          (f)  Lessor may apply any amounts then held thereby pursuant to
     Section 15, or otherwise pursuant to the Operative Agreements, toward the
     payment of the Lessee's obligations hereunder; and

In addition, the Lessee shall be liable for any unpaid Supplemental Rent due
hereunder before or after any termination hereof, including all reasonable costs
and expenses including attorney's fees and disbursements incurred by the Lessor
by reason of the occurrence of any Event of Default or the exercise of the
Lessor's remedies with respect thereto including without limitation all costs
and expenses incurred in connection with the return of the Airframe or any
Engine in accordance with, and in the condition required by, the terms of
Section 12 or any appraisal of the Aircraft required for purposes of this
Section 17.  At any sale of the Aircraft, the Airframe or any Engine, or portion
thereof pursuant to this Section 17, the Lessor may bid for and purchase such
property. Except as otherwise expressly provided above, no remedy referred to in
this Section 17 is intended to be exclusive (but the liquidation of damages
provided in this Section 17 shall be exclusive to the extent required by
Applicable Law), but each shall be cumulative and in addition to any other
remedy referred to above or otherwise available to the Lessor for the Event of
Default at law or in equity; and the exercise or beginning of exercise by the
Lessor of any one or more of such remedies shall not preclude the simultaneous
or later exercise by the Lessor of any or all such other remedies. No express or
implied waiver by the Lessor of any Event of Default hereunder shall in any way
be, or be construed to be, a waiver of any future or subsequent Event of
Default.  The failure or delay of Lessor in exercising any rights granted to it
hereunder upon the occurrence of any of the contingencies set forth herein shall
not constitute a waiver of any such right upon the continuation or reoccurrence
of any such contingencies or similar contingencies, and any single or partial
exercise of any particular right by Lessor shall not exhaust the same or
constitute a waiver of any other right provided for or otherwise referred to
herein.  All remedies set forth herein shall survive the expiration or other
termination of this Lease for any reason whatsoever.

Section 18.    Lessor's Right to Perform for the Lessee.
               ----------------------------------------

               If the Lessee fails to make any payment of Rent required to be
made by it hereunder or fails to perform or comply with any of its agreements
contained herein the Lessor may, upon prior notice to the Lessee, itself make
such payment or perform or comply with such agreement, and the amount of such
payment and the amount of the out-of-pocket expenses of the Lessor incurred in
connection with such payment or the performance of or compliance with such
agreement, as the case may be, together with interest thereon at the Past Due
Rate, shall be deemed Supplemental Rent, payable by the Lessee upon demand;
provided that no such payment or performance by the Lessor be deemed to cure any
--------
Default or Event of Default under this Lease or relieve the Lessee of any

                                       44
<PAGE>

of its obligations hereunder; provided further that nothing in this Section 18
                              --------
shall be deemed to permit the Lessor to exercise any control over the operation
or maintenance of the Aircraft or any part thereof while it is being utilized in
the air transportation services of the Lessee or any Permitted Sublessee without
the consent of the Lessee or otherwise allow any action precluded by Section
4(b) hereof.

Section 19.    Bankruptcy.
               ----------

               It is the intention of the parties that the Lessor shall be
entitled to the benefits of 11 U.S.C. (S)1110 with respect to the right to
repossess the Airframe, Engines and Parts as provided herein, and in any
circumstances where more than one construction of the terms and conditions of
this Lease is possible, a construction which would preserve such benefits shall
control over any construction which would not preserve such benefits or would
render them doubtful. To the extent consistent with the provisions of 11 U.S.C.
(S)1110 or any analogous section of the Federal bankruptcy laws, as amended from
time to time, it is hereby expressly agreed and provided that, notwithstanding
any other provisions of the Federal bankruptcy laws, as amended from time to
time, any right of the Lessor to take possession of the Aircraft in compliance
with the provisions of this Lease shall not be affected by the provisions of 11
U.S.C. (S)362 or 363, as amended from time to time, or any analogous provisions
of any superseding statute or any power of the bankruptcy court to enjoin such
taking of possession.

Section 20.    Assignment: Benefit and Binding Effect.
               --------------------------------------

               (a)  Assignment by the Lessee.
                    ------------------------

               The Lessee may not, without the prior written consent of the
Lessor, assign any of its rights hereunder except as otherwise expressly
provided herein.

               (b)  Assignment by the Lessor.
                    ------------------------

               The Lessor may not, without the prior consent of the Lessee,
assign any of its rights under or interest in this Lease except as expressly
provided herein or in the Supplemental Agreement.

               (c)  Benefit and Binding Effect.
                    --------------------------

               The terms and provisions of this Lease shall be binding upon and,
subject to the limitations on assignment of rights hereunder, inure to the
benefit of the Lessor and the Lessee and their respective successors and
permitted assigns. Nothing herein shall be construed as creating rights in any
other Person.

                                       45
<PAGE>

               (d)  Sublessee's Performance and Rights.
                    ----------------------------------

               Subject to the terms of Section 5(b)(x), any obligation
imposed on the Lessee in this Lease shall require only that the Lessee perform
or cause to be performed such obligation, even if stated herein as a direct
obligation, and the performance of any such obligation by any sublessee or
transferee of the Airframe or any Engine or Part permitted by the terms hereof
under a sublease or transfer agreement then in effect shall constitute
performance by the Lessee and to the extent of such performance discharges such
obligation by the Lessee.

               (e)  Security Interest.
                    -----------------

               Notwithstanding anything to contrary contained herein or
otherwise, should a court of competent jurisdiction determine that this
Agreement is one intended as security then solely in that event and for the
expressly limited purposes thereof, Lessee shall be deemed to have hereby
granted and conveyed, and for such express purposes Lessee hereby grants and
conveys to Lessor, a security interest and lien in the Aircraft (and any records
referenced in Section 12(c)) to secure the prompt and full payment and
performance as and when due of any and all obligations and indebtedness of
Lessee to Lessor, now existing or hereafter created of any kind whatsoever.

 Section 21.   Certain Agreements of Lessee.
               ----------------------------

               The Lessee will take, or cause to be taken, at the Lessee's cost
and expense, such action with respect to the recording, filing, re-recording and
re-filing of this Lease, each Lease Supplement and any financing statements or
other instruments as are necessary or requested by the Lessor and appropriate,
to maintain any security interest that may be claimed to have been created by
this Lease and the ownership interest of the Lessor in the Aircraft, and will
furnish to the Lessor timely notice of the necessity of such action, together
with such instruments, in execution form, and such other information as may be
required to enable them to take such action.

Section 22.    Miscellaneous.
               -------------

               (a)  Notices.
                    -------

               Except as otherwise specifically provided herein, all notices,
requests, approvals or consents required or permitted by the terms
hereof shall be in writing (it being understood that the specification of a
writing in certain instances and not in others does not imply an intention that
a writing is not required as to the latter). Any notice shall be effective when
received. Any notice shall either be mailed, certified or registered mail,
return receipt requested with proper first class postage prepaid, or sent in the
form of a telecopy, provided that there is receipt of such notice the next
                    --------
Business Day from an overnight courier service, or by overnight delivery service
or delivered by hand. Any notice shall be directed to the Lessee, the Lessor or
any other party to the Supplemental

                                       46
<PAGE>

Agreement to the respective addresses set forth in Section 9.01 to the
Supplemental Agreement or to such other address or telecopy number as any such
party may designate pursuant to Section 9.01 of the Supplemental Agreement.

          (b)  Counterparts.
               ------------

          This Lease may be executed by the parties hereto in separate
counterparts, each of which when so executed and delivered shall, subject to the
next sentence and the legends appearing on the cover and signature page hereof,
be an original, but all such counterparts shall together constitute but one and
the same instrument. TO THE EXTENT, IF ANY, THAT THIS LEASE CONSTITUTES CHATTEL
PAPER (AS THE TERM IS DEFINED IN THE UNIFORM COMMERCIAL CODE AS IN EFFECT IN ANY
APPLICABLE JURISDICTION), NO SECURITY INTEREST IN THIS LEASE MAY BE CREATED
THROUGH THE TRANSFER OR POSSESSION OF ANY COUNTERPART OTHER THAN THE ORIGINAL
COUNTERPART MARKED COUNTERPART NO. 1.

          (c)  Amendments.
               ----------

          Neither this Lease nor any of the terms hereof may be terminated,
amended, supplemented, waived or modified orally, but only by an instrument in
writing signed by the Lessor and the Lessee.

               Initials: Lessor _______ Lessee ________

          (d)  Agreement to Lease.
               ------------------

          It is the intent of the parties to this Lease that for all purposes
(including, without limitation, U.S. Federal income tax purposes) this Lease
will be a true lease, and that this Lease conveys to the Lessee no right, title
or interest in the Aircraft except as a lessee as provided in this Lease.

          (e)  Governing Law.
               -------------

               (i)  THIS LEASE SHALL IN ALL RESPECTS BE GOVERNED BY THE LAW OF
THE STATE OF NEW YORK, INCLUDING ALL MATTERS OF CONSTRUCTION, VALIDITY AND
PERFORMANCE. THIS LEASE HAS BEEN DELIVERED IN THE STATE OF NEW YORK.

               (ii) TO THE EXTENT PERMITTED BY APPLICABLE LAW, EACH PARTY HERETO
IRREVOCABLY AGREES, ACCEPTS AND SUBMITS ITSELF TO THE NON-EXCLUSIVE JURISDICTION
OF THE COURTS OF THE STATE OF NEW YORK IN

                                       47
<PAGE>

THE CITY AND COUNTY OF NEW YORK AND OF THE UNITED STATES FOR THE SOUTHERN
DISTRICT OF NEW YORK, IN CONNECTION WITH ANY LEGAL ACTION, SUIT OR PROCEEDING
WITH RESPECT TO ANY MATTER RELATING TO OR ARISING OUT OF OR IN CONNECTION WITH
THIS LEASE; PROVIDED, HOWEVER, TO THE EXTENT PERMITTED BY APPLICABLE LAW, THAT
            --------  -------
NOTHING IN THIS LEASE SHALL BE DEEMED OR OPERATE TO PRECLUDE LESSOR FROM
BRINGING SUIT OR TAKING OTHER LEGAL ACTION IN ANY OTHER JURISDICTION IN ORDER TO
REALIZE ON THE AIRCRAFT OR ANY OTHER COLLATERAL OR ANY OTHER SECURITY, OR TO
ENFORCE A JUDGMENT OR OTHER COURT ORDER IN FAVOR OF LESSOR, AND LESSEE EXPRESSLY
WAIVES ANY OBJECTIONS THAT IT MAY HAVE TO THE VENUE OF SUCH COURTS.

          (iii)  TO THE EXTENT PERMITTED BY APPLICABLE LAW, EACH PARTY HERETO
HEREBY IRREVOCABLY CONSENTS AND AGREES THAT THE SERVICE OF ANY AND ALL LEGAL
PROCESS, SUMMONS, NOTICES AND DOCUMENTS OF ANY OF THE AFOREMENTIONED COURTS IN
ANY SUCH SUIT, ACTION OR PROCEEDING MAY BE MADE BY MAILING COPIES THEREOF BY
REGISTERED OR CERTIFIED MAIL, POSTAGE PREPAID, AT THE ADDRESS SET FORTH PURSUANT
TO SECTION 9.01 OF THE SUPPLEMENTAL AGREEMENT.  EACH PARTY HERETO AGREES THAT
SERVICE UPON IT, OR ANY OF ITS AGENTS, IN EACH CASE IN ACCORDANCE WITH THIS
SECTION 22(e)(iii), SHALL CONSTITUTE VALID AND EFFECTIVE PERSONAL SERVICE UPON
SUCH PARTY, AND EACH PARTY HERETO HEREBY AGREES THAT THE FAILURE OF ANY OF ITS
AGENTS TO GIVE ANY NOTICE OF SUCH SERVICE TO ANY SUCH PARTY SHALL NOT IMPAIR OR
AFFECT IN ANY WAY THE VALIDITY OF SUCH SERVICE ON SUCH PARTY OR ANY JUDGMENT
RENDERED IN ANY ACTION OR PROCEEDING BASED THEREON.

          (iv)   EACH PARTY HERETO HEREBY IRREVOCABLY WAIVES, TO THE EXTENT
PERMITTED BY APPLICABLE LAW, AND AGREES NOT TO ASSERT, BY WAY OF MOTION, AS A
DEFENSE, OR OTHERWISE, IN ANY LEGAL ACTION OR PROCEEDING BROUGHT HEREUNDER IN
ANY OF THE ABOVE-NAMED COURTS, THAT SUCH ACTION OR PROCEEDING IS BROUGHT IN AN
INCONVENIENT FORUM, THAT VENUE FOR THE ACTION OR PROCEEDING IS IMPROPER OR THAT
THIS LEASE OR ANY OTHER OPERATIVE AGREEMENT MAY NOT BE ENFORCED IN OR BY SUCH
COURTS.

          (v)    TO THE EXTENT PERMITTED BY APPLICABLE LAW, EACH PARTY HERETO
HEREBY WAIVES ITS RESPECTIVE RIGHTS TO A JURY TRIAL OF ANY CLAIM OR CAUSE OF
ACTION IN ANY COURT IN ANY JURISDICTION BASED UPON OR ARISING OUT OF OR RELATING
TO THIS LEASE.

                                       48
<PAGE>

          (f)  Severability.
               ------------

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

          (g)  Survival.
               --------

          The representations, warranties, indemnities and covenants set forth
herein shall survive the delivery of the Aircraft and the transfer of Lessor's
Estate pursuant to Section 5.01(c) of the Supplemental Agreement.

          (h)  Article 2A.
               ----------

          The Lessor and the Lessee agree that this Lease is a "finance lease"
for purposes of Article 2A of, and as defined in Section 2-A-103 of the Uniform
Commercial Code.  The Lessee agrees that no right or remedy granted solely by
reason of Article 2A of the Uniform Commercial Code shall be available to the
Lessee as against the Lessor unless expressly provided in this Lease.

                           *            *           *

                                       49
<PAGE>

          IN WITNESS WHEREOF, the Lessor and the Lessee have each caused this
Lease to be duly executed by their authorized officers as of the day and year
first above written.

                              FLEET NATIONAL BANK,
                              as Lessor

                              By:   /s/ Edward W. O'Brien
                                    ---------------------------
                                    Name: Edward W. O'Brien
                                    Title: Banking Officer

                              MIDWAY AIRLINES CORPORATION,
                              as Lessee

                              By:   /s/ Jonathan S. Waller
                                    ---------------------------
                                    Name: Jonathan S. Waller
                                    Title: Senior Vice President
                                         General Councel

                                       50
<PAGE>

                                  APPENDIX A

                             DEFINITIONS [N587ML]

GENERAL PROVISIONS

          The following terms shall have the following meanings for all purposes
of the Operative Agreements (as defined below), unless otherwise defined in an
Operative Agreement or the context thereof shall otherwise require.  In the case
of any conflict between the provisions of this Appendix and the provisions of
any Operative Agreement, the provisions of such Operative Agreement shall
control the construction of such Operative Agreement.

          Unless the context otherwise requires, (i) references to agreements
shall be deemed to mean such agreements as amended and supplemented from time to
time, and any agreement, instrument or document entered into in substitution or
replacement therefor, and (ii) references to parties to agreements shall be
deemed to include the successors and permitted assigns of such parties.

     "Additional Insureds" means the Lessor.
      -------------------

     "Aeronautical Authority" means as of any time of determination, the FAA or
      ----------------------
other governmental airworthiness authority having jurisdiction over the Aircraft
or the Airframe and Engines or engines attached thereto under the laws of the
country in which the Airframe is then registered.

     "Affiliate" means, with respect to any Person, any other Person directly or
      ---------
indirectly controlling 50% or more of any class of voting securities of such
Person or otherwise controlling, controlled by or under common control with such
Person.  For the purposes of this definition, "control" (including "controlled
by" and "under common control with") shall mean 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.

     "After Tax Basis" means a basis such that any payment to be received or
      ---------------
deemed to be received by a Person shall be supplemented by a payment to such
Person so that the sum of such payments, after deduction of all Taxes (taking
into account any related credits or deductions) resulting from the actual or
constructive receipt or accrual of such payments, shall be equal to the payment
to be received.
<PAGE>

     "Aircraft" means the Airframe together with the two (2) Engines, whether or
      --------
not any of the Engines may at the time of determination be installed on the
Airframe or installed on any other airframe or on any other aircraft.

     "Airframe" means (i) the  Canadair Regional Jet Model CL-600-2B19 Series
      --------
200ER aircraft (excluding the Engines and any other engines which may from time
to time be installed thereon, but including any and all Parts which may from
time to time be incorporated in, installed on or attached to such aircraft, and
including any and all such Parts removed therefrom so long as title to such
removed Parts remains vested in the Lessor under the terms of Section 7 of the
Lease) originally delivered and leased under the Lease, identified by national
registration number and manufacturer's serial number in the Lease Supplement
executed and delivered on the Delivery Date, so long as a Replacement Airframe
shall not have been substituted therefor pursuant to Section 8 of the Lease, and
(ii) a Replacement Airframe, so long as another Replacement Airframe shall not
have been substituted therefor pursuant to Section 8 of the Lease.

     "Applicable Law" means all applicable laws, treaties, judgments, decrees,
      --------------
injunctions, writs and orders of any court, governmental agency or authority and
rules, regulations, orders, directives, licenses and permits of any governmental
body, instrumentality, agency or authority.

     "Applicable Rate" has the meaning specified in Exhibit B to the Lease.
      ---------------

     "Bankruptcy Code" means Title 11 of the United States Code, as amended, and
      ---------------
any successor thereto.

     "Basic Rent" means the rent payable on Basic Rent Payment Dates throughout
      ----------
the Basic Term for the Aircraft pursuant to Section 3(b) of the Lease and rent
payable during any Renewal Term pursuant to Section 13(a) of the Lease.

     "Basic Rent Payment Date" means each date listed under the heading "Basic
      -----------------------
Rent Payment Date" in Exhibit C to the Lease.

     "Basic Term" means the period commencing at the beginning of the day on the
      ----------
Delivery Date and ending at end of the day on the Expiration Date, or such
earlier date on which the Lease shall be terminated as provided therein.

     "Bills of Sale" means the FAA Bill of Sale and the Warranty Bill of Sale.
      -------------

     "Business Day" means any day other than a Saturday or Sunday or other day
      ------------
on which commercial banks are authorized or required by law to close in New York
City, Charlotte, North Carolina or Providence, Rhode Island.
<PAGE>

     "Citizen of the United States" means a citizen of the United States as
      ----------------------------
defined in (S)40102(a)(15) of the Transportation Code, or any analogous part of
any successor or substituted legislation or regulation at the time in effect.

     "Code" means the United States Federal Internal Revenue Code of 1986, as
      ----
amended from time to time, or any similar legislation of the United States
enacted to supersede, amend, or supplement such Code (and any reference to a
provision of the Code shall refer to any successor provision(s), however
designated).

     "Commitment" shall have the meaning given such term in Section 2.01(b) of
      ----------
the Supplemental Agreement.

     "CRAF Program" has the meaning specified in Section 5(b)(vii) of the Lease.
      -------------

     "Default" means any event or condition which, with the lapse of time or the
      -------
giving of notice, or both, would constitute an Event of Default.

     "Deficiency Agreement" has the meaning given to such term in the recitals
      --------------------
of the Supplemental Agreement.

     "Deficiency Obligor" has the meaning given to such term in the recitals of
      ------------------
the Supplemental Agreement.

     "Delivery Date" means the date on which the Aircraft is delivered and sold
      -------------
to the Lessor and leased by the Lessor to the Lessee under the Lease, which date
shall be the date of the initial Lease Supplement.

     "Dollars", "Dollar" and "$" means dollars in lawful currency of the United
      -------    ------       -
States.

     "DOT" means the United States Department of Transportation or any successor
      ---
thereto.

     "EBO Date" has the meaning given to such term in Exhibit B to the Lease.
      --------

     "EBO Amount" has the meaning given to such term in Exhibit B to the Lease.
      ----------

     "Engine" means (A) each of the two General Electric CF34-3B1 Series 200
      ------
engines originally delivered and leased under the Lease, identified by
manufacturer's serial number in the Lease Supplement executed and delivered on
the Delivery Date, so long as a Replacement Engine shall not have been
substituted therefor pursuant to Section 7(e) of the Lease, and (B) a
Replacement Engine, so long as another Replacement Engine shall not have been
substituted therefor pursuant to Section 7(e) of the Lease, whether or not such
engine or Replacement Engine, as the case may be,
<PAGE>

is from time to time installed on the Airframe or installed on any other
aircraft, and including in each case all Parts incorporated or installed in or
attached thereto and any and all Parts removed therefrom so long as title to
such Parts remains vested in the Lessor under the terms of Section 7 of the
Lease. The term "Engines" means, as of any date of determination, the two
                 -------
engines each of which is an Engine on that date.

     "Engine Loan Agreement" means the Loan Agreement between Fleet Capital
      ---------------------
Corporation, as lender and Lessee, as borrower in respect of the financing of
two General Electric CF34-3B1 Series 200 engines.

     "Engine Manufacturer" means General Electric Company, a New York
      -------------------
corporation.

     "Engine Manufacturer's Consent" means the Engine Manufacturer's Consent and
      -----------------------------
Agreement [N587ML], dated as of December 30, 1999, from the Engine Manufacturer.

     "Engine Warranty Assignment" means the Engine Warranty Assignment [N587ML],
      --------------------------
dated as of December 30, 1999, between Lessee and Lessor.

     "ERISA" means the Employee Retirement Income Security Act of 1974 and any
      -----
regulations and rulings issued thereunder all as amended and in effect from time
to time.

     "ERISA Plan" means, individually or collectively, an employee benefit plan,
      ----------
as defined in Section 3(3) of ERISA, which is subject to Title I of ERISA or any
applicable regulation thereunder or a plan or individual retirement account
which is subject to Section 4975(c) of the Code;

     "Event of Default" has the meaning given to such term in Section 16 of the
      ----------------
Lease.

     "Event of Loss" means any of the following events with respect to the
      -------------
Aircraft, the Airframe or any Engine:

          (i)   any theft, hijacking or disappearance of such property for a
     period of 15 consecutive days (provided that, so long as Lessee shall be
     diligently pursuing recovery of such property, such period shall be
     extended to 45 consecutive days) or more or, if earlier for a period that
     extends until the end of the Term;

          (ii)  destruction, damage beyond economic repair or rendition of such
     property permanently unfit for normal use for any reason whatsoever;

          (iii) any event which results in an insurance settlement with respect
     to such property on the basis of an actual, constructive or compromised
     total loss;
<PAGE>

        (iv)    condemnation, confiscation or seizure of, or requisition of
     title to or use of such property by any foreign government or purported
     government (or in the case of any such condemnation, confiscation, seizure
     or requisition of title, by the Government) or any agency or
     instrumentality thereof, for a period in excess of (A) in the case of any
     condemnation, confiscation, seizure or requisition of use, 180 consecutive
     days or (B) in the case of any condemnation, confiscation or seizure of, or
     requisition of title, 15 consecutive days, or, in any of the cases in this
     clause (iv), such shorter period ending on the expiration of the Term;

          (v)   condemnation, confiscation or seizure of, or requisition of use
     of such property by the Government for a period extending beyond the Term;

          (vi)  as a result of any law, rule, regulation, order or other action
     by the Aeronautical Authority, the use of the Aircraft or Airframe in the
     normal course of air transportation shall have been prohibited by virtue of
     a condition affecting all  Canadair Regional Jet Series 200ER aircraft
     equipped with engines of the same make and model as the Engines for a
     period of 180 consecutive days (or beyond the end of the Term), unless the
     Lessee, prior to the expiration of such 180-day period, shall be diligently
     carrying forward all necessary and desirable steps to permit normal use of
     the Aircraft and shall within 12 months have conformed at least one
     Canadair Regional Jet Series 200ER aircraft (but not necessarily the
     Aircraft) to the requirements of any such law, rule, regulation, order or
     action, and shall be diligently pursuing conformance of the Aircraft in a
     non-discriminatory manner provided that, notwithstanding the foregoing, if
     such normal use of such property subject to the Lease shall be prohibited
     at the end of the Term, an Event of Loss shall be deemed to have occurred;
     and

          (vii) with respect to an Engine only, the requisition or taking of
     use thereof by any government, and any divestiture of title or ownership
     deemed to be an Event of Loss with respect to an Engine under Section
     5(b)(iii) or 5(b)(vi) of the Lease.

The date of such Event of Loss shall be (aa) the 16/th/ day following loss of
such property or its use due to theft or disappearance or the 46/th/ day
following such loss if such period shall have been extended (or the end of the
Term if earlier); (bb) the date of any destruction, damage beyond economic
repair or rendition of such property permanently unfit for normal use; (cc) the
date of any insurance settlement on the basis of an actual, constructive or
compromised total loss; (dd) the 181/st/ day following condemnation,
confiscation, seizure or requisition of title to such property by a foreign
government referred to in clause (iv) above (or the 16/th/ day in the case of
appropriation of title), or the end of the Term if earlier than such 181/st/ or
16/th/ day; (ee) the last day of the Term in the case of requisition of title to
or use of such property by the Government; and (ff) the last day of the
applicable period referred to in clause (vi) above (or if earlier, the end of
the Term without the Lessee's having conformed at least one Canadair Regional
Jet Series 200ER aircraft to the
<PAGE>

applicable requirements). An Event of Loss with respect to the Aircraft shall be
deemed to have occurred if any Event of Loss occurs with respect to the
Airframe.

     "Expenses" has the meaning given to such term in Section 7.01(a) of the
      --------
Supplemental Agreement.

     "Expiration Date" means the date specified as such in the Lease Supplement
      ---------------
executed and delivered on the Delivery Date.

     "FAA Bill of Sale" means (A) the bill of sale for the Airframe on AC Form
      ----------------
8050-2, or such other form as may be approved by the Aeronautical Authority,
executed by the Seller in favor of the Lessor and to be dated the Delivery Date,
and (B) a bill of sale for a Replacement Airframe on AC Form 8050-2, or such
other form as may be approved by the Aeronautical Authority, executed by the
seller thereof in favor of the Lessor.

     "Fair Market Rental Value" or "Fair Market Sales Value" of the Airframe or
      ------------------------      -----------------------
any Engine shall mean the value that would be obtained in an arms'-length
transaction between an informed and willing lessee-user or buyer-user (other
than a lessee currently in possession or a used equipment dealer) under no
compulsion to lease or buy, as the case may be, and an informed and willing
lessor or seller, as the case may be, under no compulsion to lease or sell, as
the same shall be specified by agreement between the Lessor and the Lessee or,
if not agreed to by the Lessor and the Lessee within a period of 15 days after
either party requests a determination, then as specified in an appraisal
prepared and delivered and mutually agreed to by two recognized independent
aircraft appraisers, one of which shall be appointed by the Lessor and the other
of which shall be appointed by the Lessee, or, if such appraisers cannot agree
on such appraisal, an appraisal arrived at by a third independent recognized
appraiser chosen by the mutual consent of the two aircraft appraisers.  If
either party should fail to appoint an appraiser within 15 days of receiving
notice of the appointment of an appraiser by the other party, then such
appraisal shall be made by the appraiser appointed by the first party.  If the
two appraisers cannot agree on such appraisal and fail to appoint a third
independent recognized aircraft appraiser within 15 days after the appointment
of the second appraiser, then either party may apply to the American Arbitration
Association to make such appointment.  The appraisal shall be completed within
30 days of the appointment of the last appraiser appointed.  In determining Fair
Market Rental Value or Fair Market Sales Value by appraisal or otherwise, it
will be assumed that the Aircraft, Airframe or Engine is in the condition,
location and overhaul status in which it is required to be returned to the
Lessor pursuant to Section 12 of the Lease and that the Lessee has removed all
Parts which it is entitled to remove pursuant to Section 7 of the Lease and that
the Aircraft is not encumbered by the Lease and there shall be no deduction for
any costs of removal of the Aircraft from its then location.  Except as
otherwise expressly provided in the Lease, all appraisal costs will be paid by
the Lessee.  Notwithstanding the foregoing, for purposes of Section 17 of the
Lease, the "Fair Market Rental Value" or "Fair Market Sales Value" of the
Aircraft, the Airframe or any Engine, shall be determined
<PAGE>

on an "as is, where is" basis and shall take into account customary brokerage
and other out-of-pocket fees and expenses which typically would be incurred in
connection with a re-lease or sale of the Aircraft, the Airframe or any Engine.
Any such determination pursuant to Section 17 of the Lease shall be made by a
recognized independent aircraft appraiser selected by Lessor and the costs and
expenses associated therewith shall be borne by Lessee, unless Lessor does not
obtain possession of the Aircraft, Airframe and Engines pursuant to Section 17
of the Lease, in which case an appraiser shall not be appointed and Fair Market
Rental Value and Fair Market Sales Value for purposes of Section 17 of the Lease
shall be zero.

     "Fair Market Value Renewal Term" has the meaning given to such term in
      ------------------------------
Section 13(a) of the Lease.

     "Federal Aviation Administration" or "FAA" means the United States Federal
      --------------------------------     ---
Aviation Administration and any successor agency or agencies thereto.

     "Fixed Renewal Term" has the meaning given to such term in Section 13(a) of
      ------------------
the Lease.

     "Government" means the United States of America or an agency or
      ----------
instrumentality thereof the obligations of which bear the full faith and credit
of the United States of America.

     "Indemnitee" means Lessor and each Affiliate, officer, director, employee,
      ----------
agent, servant, successor and permitted assigns of Lessor.

     "Lease" means the Lease Agreement [N587ML], dated as of December 30, 1999
      -----
between the Lessor and the Lessee.

     "Lease Supplement" means any Lease Supplement, substantially in the form of
      ----------------
Exhibit A to the Lease, entered into between the Lessor and the Lessee for the
purpose of leasing the Aircraft under and pursuant to the terms of the Lease,
including any amendment thereto entered into subsequent to the Delivery Date.

     "Lessee" means Midway Airlines Corporation, a Delaware corporation, and its
      ------
successors and permitted assigns.

     "Lessee Documents" means the Operative Agreements to which the Lessee is a
      ----------------
party.

     "Lessor" means Fleet National Bank, a national banking association
      ------
established under the laws of the United States of America, and its successors
and permitted assigns.

     "Lessor's Cost" has the meaning given to such term in Exhibit B of the
      -------------
Lease.
<PAGE>

     "Lessor's Estate" means all estate, right, title and interest of the Lessor
      ---------------
in and to the Aircraft, and Engines and the Operative Agreements including,
without limitation, all amounts of Rent, insurance proceeds and requisition,
indemnity or other payments of any kind.

     "Lessor's Liens" means Liens against, on or with respect to the Aircraft,
      --------------
any Engine, the Lessor's Estate or any part thereof, title thereto or any
interest therein arising as a result of (i) claims against or affecting the
Lessor not related to the Operative Agreements or the transactions contemplated
thereby, (ii) acts or omissions of the Lessor not contemplated or permitted
under the terms of the Operative Agreements, (iii) Taxes or Expenses imposed
against the Lessor or Lessor's Estate which are not required to be indemnified
against by the Lessee pursuant to Articles 6 or 7 of the Supplemental Agreement
(other than pursuant to Section 6.01(b)(x) or 7.01(b)(vii)) and which are not
required to be indemnified against by the Lessee pursuant to the Tax Indemnity
Agreement, or (iv) claims against the Lessor arising from the transfer by the
Lessor of its interests in the Aircraft or any Engine other than a transfer of
the Aircraft or any other portion of the Lessor's Estate pursuant to Section
5(b), 7(b), 7(c), 7(d), 7(e), 8, 12(b), 13(b), 14(a) or 17 of the Lease and
other than a transfer pursuant to the exercise of the remedies set forth in
Section 17 of the Lease.

     "Lien" means any mortgage, pledge, lien, charge, encumbrance, lease,
      ----
security interest, claim, or other similar interest of any nature whatsoever.

     "Manufacturer" means Bombardier Inc., a Canadian corporation, and its
      ------------
successors and permitted assigns.

     "Material Adverse Change" means, with respect to any Person, any event,
      -----------------------
condition or circumstance that materially and adversely affects such Person's
business or consolidated financial condition.

     "Minimum Liability Amount" has the meaning given to such term in Exhibit B
      ------------------------
to the Lease.

     "Net Economic Return" means the Lessor's nominal after-tax book yield
      -------------------
(utilizing the multiple investment sinking fund method of analysis), computed
through the Expiration Date on the basis of the same methodology, constraints
and assumptions as were utilized by the Lessor in determining Basic Rent
percentages and Termination Value percentages as of the Delivery Date; provided,
                                                                       --------
that, if the Lessor shall have transferred its interest, Net Economic Return
shall be calculated as if the Lessor had retained its interest.

     "Non-U.S. Person" means any Person other than a U.S. Person.
      ---------------

     "Officer's Certificate" means as to any company a certificate signed by a
      ---------------------
Responsible Officer of such company.
<PAGE>

     "Operative Agreements" means the Supplemental Agreement, the Deficiency
      --------------------
Agreement, the Residual Agreement, the Return Condition Agreement, the FAA Bill
of Sale, the Warranty Bill of Sale, the Purchase Agreement, the Purchase
Agreement Assignment, the Engine Warranty Assignment, the PAA Consent, the
Engine Manufacturer's Consent, the Lease, each Lease Supplement and the Tax
Indemnity Agreement.

     "PAA Consent" means the Aircraft Manufacturer's Consent and Agreement
      -----------
[N587ML], dated as of December 30, 1999, from the Manufacturer.

     "Parts" means any and all appliances, parts, instruments, components,
      -----
appurtenances, accessories, furnishings, seats, and other equipment of whatever
nature (other than complete Engines or engines and temporary replacement parts
as provided in Section 8 of the Lease and cargo containers) which may from time
to time be incorporated or installed in or attached to any Airframe or any
Engine, exclusive of any items leased by the Lessee from third parties and not
required in the navigation of the Aircraft.

     "Past Due Rate" means a rate per annum identified in Exhibit B to the
      -------------
Lease.

     "Permitted Air Carrier" means (a) any Section 1110 Person and (b) any
      ---------------------
foreign air carrier that is principally based in any foreign country listed on
Exhibit E to the Lease, except those that do not maintain normal diplomatic
relations with the United States.

     "Permitted Investments" means (a) direct obligations of the United States
      ---------------------
of America or any agency or instrumentality thereof, (b) obligations fully
guaranteed by the United States of America or any agency or instrumentality
thereof, (c) any mutual fund the portfolio of which is limited to obligations of
the type described in clauses (a) and (b), (d) certificates of deposit issued
by, or bankers' acceptances of, or time deposits or a deposit account with, any
bank, trust company, or national banking association incorporated or doing
business under the laws of the United States of America or one of the states
thereof, having a combined capital and surplus of at least $100,000,000 and
having a rating of "A" or better from the Keefe Bank Watch Service.  Unless
otherwise specified in writing by the Lessor, all such Permitted Investments
shall mature not later than 30 days from the date of purchase.

     "Permitted Lien" has the meaning given to such term in Section 10 of the
      --------------
Lease.

     "Permitted Sublessee" means (a) any Permitted Air Carrier, (b) any airframe
      -------------------
or engine manufacturer, or Affiliate of such a manufacturer, who is domiciled in
the United States of America or a country listed on Exhibit E to the Lease or
(c) the United States of America or any instrumentality or agency thereof.
<PAGE>

     "Person" means any individual, sole proprietorship, partnership, joint
      ------
venture, joint stock company, trust, unincorporated organization, association,
corporation, institution, limited liability company or government (federal,
state, local, foreign or any agency, instrumentality, division or body thereof)
or other entity of whatever nature.

     "Purchase Agreement" means Bombardier Regional Aircraft Division Purchase
      ------------------
Agreement No. PA-0393 dated September 17, 1997, as amended, between the Lessee
and the Manufacturer (including all exhibits thereto, together with all letter
agreements entered into that by their terms constitute part of such Purchase
Agreement), but only to the extent the same relates to the Aircraft.

     "Purchase Agreement Assignment" means the Purchase Agreement Assignment
      -----------------------------
[N587ML], dated as of December 30, 1999, between Lessee and Lessor.

     "Purchase Price" means an amount equal to Lessor's Cost.
      --------------

     "Reasonable Basis" means that a realistic possibility of success, within
      ----------------
the meaning of ABA Formal Opinion No. 85-352, exists for pursuing such contest.

     "Recovery Period" means "Tax Attribute Period" as defined in the Tax
      ---------------
Indemnity Agreement.

     "Related Tax Indemnitee" means any Affiliate of any Tax Indemnitee.
      ----------------------

     "Renewal Term" has the meaning given to such term in Section 13(a) of the
      ------------
Lease.

     "Rent" means Basic Rent and Supplemental Rent, collectively.
      ----

     "Replacement Aircraft" means any Aircraft of which a Replacement Airframe
      --------------------
is part.

     "Replacement Airframe" means a  Canadair Regional Jet Series 200ER series
      --------------------
aircraft or a comparable or improved model of such aircraft of the Manufacturer
(except Engines or engines from time to time installed thereon) which shall have
become subject to the Lease pursuant to Section 8 thereof.

     "Replacement Closing Date" has the meaning given such term in Section 8(d)
      ------------------------
of the Lease.

     "Replacement Engine" means a General Electric CF34-3B1 Series 200 engine
      ------------------
(or engine of the same manufacturer of a comparable or an improved model and
suitable for installation and use on the Airframe), which has a value, utility
and remaining useful life at least equal to, and which is in good operating
condition as, the Engine to be replaced thereby (assuming that such Engine being
<PAGE>

replaced was in the condition required to be maintained in accordance with the
Lease), and which shall have become subject to the Lease pursuant to Section
7(e) thereof.

     "Residual Agreement" has the meaning given to such term in the recitals of
      ------------------
the Supplemental Agreement.

     "Responsible Officer" means, with respect to any party, any Vice President
      -------------------
or other corporate officer of a party who, in the normal performance of his or
her operational responsibilities, with respect to the subject matter of any
covenant, agreement or obligation of such party pursuant to any Operative
Agreement, would have responsibility for and knowledge of such matter and the
requirements of any Operative Agreement with respect thereto.

     "Return Condition Agreement" means the Return Condition Agreement [N587ML],
      --------------------------
dated as of December 30, 1999, between the Manufacturer and the Lessee.

     "SEC" means the Securities and Exchange Commission of the United States and
      ---
any successor agencies or authorities.

     "Section 1110" means 11 U.S.C. (S) 1110 or any successor or analogous
      ------------
section of the federal bankruptcy law in effect from time to time.

     "Section 1110 Person" means a Citizen of the United States who is an air
      -------------------
carrier holding a valid air carrier operating certificate issued pursuant to 49
U.S.C. ch. 447 for aircraft capable of carrying 10 or more individuals.

     "Securities Act" means the Securities Act of 1933, as amended.
      --------------

     "Seller" has the meaning given to such term in Exhibit B to the Lease.
      ------

     "Specified Default" means (a) an event or condition described in Section
      -----------------
16(a), (f), (g) or (h) of the Lease that, after the giving of notice or lapse of
time, or both, would become an Event of Default, or (b) any Event of Default.

     "Sublease" means any sublease agreement between the Lessee and a Permitted
      --------
Sublessee as permitted by Section 5(b) of the Lease.

     "Supplemental Agreement" means the Supplemental Agreement [N587ML], dated
      ----------------------
as of December 30, 1999, between the Lessee and the Lessor.

     "Supplemental Rent" means all amounts, liabilities, indemnities and
      -----------------
obligations which the Lessee assumes or agrees to perform or pay under the Lease
or under the Supplemental Agreement
<PAGE>

or Tax Indemnity Agreement or any other Operative Agreement to the Lessor or
others, including payments of Termination Value, EBO Amount, and amounts
calculated by reference to Termination Value, all other amounts payable under
Section 3(c) of the Lease, and all amounts required to be paid by Lessee under
the agreements, covenants, and indemnities contained in the Lease or in the
Supplemental Agreement or the Tax Indemnity Agreement or any other Operative
Agreement, but excluding Basic Rent.

     "Tax" or "Taxes" has the meaning set forth in Section 6.01(a) of the
      ---      -----
Supplemental Agreement.

     "Tax Indemnitee" means each of Lessor and any Affiliate thereof.
      --------------

     "Tax Indemnity Agreement" means the Tax Indemnity Agreement [N587ML], dated
      -----------------------
as of December 30, 1999 between the Lessee and the Lessor.

     "Term" has the meaning given to such term in Section 3(a) of the Lease.
      ----

     "Termination Date" means each date listed in the column entitled
      ----------------
"Termination Date" in Exhibit D to the Lease or, during a Renewal Term or
otherwise during any period following the last day of the Term, the second day
of each month.

     "Termination Value" means (a) as of any Termination Date during the Basic
      -----------------
Term, the amount determined by multiplying Lessor's Cost by the percentage set
forth in Exhibit D to the Lease for that Termination Date, and (b) during any
Renewal Term, the amount for the date involved, determined in accordance with
Section 13(a) of the Lease, in either case adjusted as required by Section 3(d)
of the Lease.

     "Transaction Costs" means those costs and expenses set forth in Section
      -----------------
8.01(a) of the Supplemental Agreement.

     "Transportation Code" means Title 49 of the United States Code, subtitle
      -------------------
VII, as amended and in effect on the date of the Lease or as subsequently
amended, or any successor or substituted legislation at the time in effect and
applicable, and the regulations promulgated pursuant thereto.

     "Uniform Commercial Code" means the Uniform Commercial Code as in effect
      -----------------------
from time to time in any relevant jurisdiction.

     "United States", "U.S." or "US" means the United States of America.
      -------------    ----      --

     "U.S. Person" means a Person described in (S)7701(a)(30) of the Code.
      -----------
<PAGE>

     "Warranty Bill of Sale" means (A) the full warranty bill of sale covering
      ---------------------
the Aircraft (and specifically referring to each Engine) executed by the Seller
in favor of the Lessor and to be dated the Delivery Date, and (B) a full
warranty bill of sale covering a Replacement Aircraft (and specifically
referring to each Engine) executed by the seller thereof in favor of the Lessor.
<PAGE>

                                                                       Exhibit A
                                                              to Lease Agreement
                                                              ------------------

                        LEASE SUPPLEMENT NO. 1 [N587ML]
                        -------------------------------

          THIS LEASE SUPPLEMENT NO. 1 [N587ML] dated ____________, 1999, between
FLEET NATIONAL BANK, a national banking association established under the laws
of the United States of America, the Lessor, and MIDWAY AIRLINES CORPORATION, a
Delaware corporation, the Lessee;

                             W I T N E S S E T H :

          WHEREAS, the Lessor and the Lessee have heretofore entered into that
certain Lease Agreement [N587ML], dated as of December 30, 1999 (the "Lease",
the terms defined therein being herein used with the same meaning), which Lease
provides, among other things, for the execution and delivery of Lease
Supplements in substantially the form hereof for the purpose of leasing a
specific Aircraft under the Lease when delivered by the Lessor to the Lessee in
accordance with the terms thereof;

          WHEREAS, the Lease, a counterpart of which is attached hereto and made
a part hereof, relates to the Aircraft and Engines described in Schedule I
hereto and this Lease Supplement, together with such attachment, is being filed
for recordation on the date hereof with the FAA as one document;

          NOW, THEREFORE, in consideration of the premises and other good and
sufficient consideration, and pursuant to Section 2 of the Lease, the Lessor and
the Lessee hereby agree as follows:

          1.   The Lessor hereby delivers and leases to the Lessee, and the
Lessee hereby accepts and leases from the Lessor, under the Lease as herein
supplemented, the Aircraft, described in Schedule I hereto.

          2.   Lessee hereby acknowledges, agrees and certifies that the
Aircraft is in Lessee's possession, has been inspected by Lessee to its complete
satisfaction, has been found to be in good working order, repair and condition
(ordinary wear and tear excepted) and fully equipped to operate as required
under Applicable Law for its purpose, is of a size, design, capacity and
manufacture selected by Lessee, and is, as of the date set forth below,
unconditionally, irrevocably and fully accepted by Lessee for lease under the
Lease. Lessee hereby further reaffirms its acknowledgments and agreements in the
Lease.
<PAGE>

          3.    Lessee hereby represents and warrants to Lessor that on the date
hereof:

          (i)   The representations and warranties of Lessee set forth in the
Supplemental Agreement and all certificates delivered in connection therewith
are true and correct in all material respects (with the same force and effect as
if the same had been made on this date), or, to the extent that any such
representation and warranty relates to an earlier date, is true and correct in
all material respects as of such earlier date.

          (ii)  No Default or Event of Default under the Lease has occurred and
is continuing.

          (iii) Lessee has obtained, and there are in full force and effect,
such insurance policies with respect to the Aircraft as are required to be
obtained under the terms of the Lease.

          4.    The Delivery Date is the date of this Lease Supplement set forth
in the opening paragraph hereof.

          5.    The Basic Term shall commence on the Delivery Date and continue
through June ___, 2016 (the "Expiration Date"), unless terminated earlier as
provided in the Lease.

          6.    Lessee hereby confirms to Lessor that Lessee has duly and
irrevocably accepted the Aircraft under and for all purposes hereof, of the
Lease and of the other Lessee Documents.

          7.    All of the terms and provisions of the Lease are hereby
incorporated by reference in this Lease Supplement to the same extent as if
fully set forth herein.

          8.    This Lease Supplement may be executed by the parties hereto in
separate counterparts and all such counterparts shall together constitute but
one and the same instrument. To the extent, if any, that this Lease Supplement
constitutes chattel paper (as such term is defined in the Uniform Commercial
Code as in effect in any applicable jurisdiction), no security interest in this
Lease Supplement or the Lease may be created through the transfer or possession
of any counterpart other than the original counterpart of each thereof marked
Counterpart No. 1.

          9.    THIS LEASE SUPPLEMENT HAS BEEN DELIVERED IN THE STATE OF NEW
YORK AND SHALL IN ALL RESPECTS BE GOVERNED BY THE LAW OF THE STATE OF NEW YORK,
INCLUDING ALL MATTERS OF CONSTRUCTION, VALIDITY AND PERFORMANCE.
<PAGE>

          IN WITNESS WHEREOF, the Lessor and the Lessee have each caused this
Lease Supplement to be duly executed by their authorized officers as of the day
and year first above written.

                              FLEET NATIONAL BANK,
                              as Lessor

                              By:   ____________________________________
                                    Name:
                                    Title:

                              MIDWAY AIRLINES CORPORATION,
                              as Lessee

                              By:   ____________________________________
                                    Name:
                                    Title:
<PAGE>

                                                                      SCHEDULE I
                                                                    TO EXHIBIT A

                      DESCRIPTION OF AIRFRAME AND ENGINES
                      -----------------------------------

                                   AIRFRAME

                      Manufacturer's     FAA Registration     Manufacturer's
Manufacturer              Model                 No.             Serial No.
------------          --------------     ----------------     --------------

Bombardier Inc.       CL-600-2B19        N587ML               7346

                                    ENGINES

                                Manufacturer's         Manufacturer's
Manufacturer                          Model              Serial Nos.
------------                    --------------         --------------

General Electric Company        CF34-3B1               GE-E-872593
                                                       GE-E-872592

          Each Engine is of 750 or more "rated take-off horsepower" or the
equivalent of such horsepower.
<PAGE>

                                                                       Exhibit B

                         Certain Economic Information
                         ----------------------------

"EBO Amount" shall mean $*.
 ----------

"EBO Date" shall mean June 30, 2014.
 --------

"Lessor's Cost" shall mean $*.
 -------------

"Minimum Liability Amount" shall mean $300,000,000.
 ------------------------

"Transaction Costs" shall mean *% of Lessor's Cost.
 -----------------

"Seller" shall mean Bombardier Capital Inc.
 ------

"Past Due Rate" shall mean a rate equal to the rate per annum announced from
 -------------
time to time by Citibank, N.A. as its prime rate plus three percent (3%) per
annum.

"Renewal Rental Rate" shall mean $* per annum.
 -------------------

"Applicable Rate" shall mean *% per annum.
 ---------------

"Residual Value Protection": the residual value support referred to in Section
 -------------------------
13(a) shall protect, as of the end of any Renewal Term, against shortfalls in
value of the Aircraft below the residual value as of the end of the Basic Term,
less the amount of such residual value amortized by Basic Rent received during
such Renewal Term, provided that the amount of such residual value support shall
not exceed 15/40 of the amount of such amortized residual value as of the end of
such Renewal Term.

* Confidential treatment requested for omitted information. Omitted information
has been filed separately with the Commission.
<PAGE>

                                                                       Exhibit C

                                  Basic Rent
                                  ----------

          Basic Rent Payment Date                      Amount
          -----------------------                      ------

* Confidential treatment requested for omitted information. Omitted information
has been filed separately with the Commission.

<PAGE>

                                                                       Exhibit D

                               Termination Values
                               ------------------

Termination Date                             Termination Value
----------------                             -----------------

* Confidential treatment requested for omitted information. Omitted information
has been filed separately with the Commission.
<PAGE>

                                                                       Exhibit E

       List of Countries - Permitted for Re-Registration and Subleasing
       ----------------------------------------------------------------

Argentina                        Italy
Australia                        Japan
Austria                          Luxembourg
Belgium                          Mexico
Canada                           Netherlands
Denmark                          New Zealand
Finland                          Norway
France                           Portugal
Germany                          Spain
Iceland                          Sweden
Ireland                          Switzerland
                                 United Kingdom
<PAGE>

                                                                       Exhibit F

                               RETURN CONDITIONS
                               -----------------

* Confidential treatment requested for omitted information. Omitted information
has been filed separately with the Commission.

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