Document:

EXHIBIT 10.3

                          AMENDMENT AGREEMENT NO. 1 FOR
                             PARTICIPATION AGREEMENT
                     AND CERTAIN OTHER OPERATIVE AGREEMENTS

         THIS AMENDMENT AGREEMENT is made and entered into as of the 18th day of
February, 2000, by and among AVIATION SALES COMPANY, a Delaware corporation
("Aviation Sales"), as Construction Agent (the "Construction Agent"); AVIATION
SALES COMPANY, as Lessee (the "Lessee"); FIRST SECURITY BANK, NATIONAL
ASSOCIATION, a national banking association, not individually, except as
expressly stated in the Operative Agreements, but solely as Owner Trustee under
the Aviation Sales Trust 1998-1 (the "Owner Trustee"); BANK OF AMERICA, N.A.,
d/b/a NationsBank, N.A., successor to NationsBank, National Association ("Bank
of America"), as a Holder and as a Lender; BANK OF AMERICA, N.A., d/b/a
NationsBank, N.A., successor to NationsBank, National Association, as
Administrative Agent (the "Agent"); each of the holders party to the Trust
Agreement (defined below) (the "Holders"); and each of the Lenders party to the
Credit Agreement (defined below)(the "Lenders").

                              W I T N E S S E T H:

         WHEREAS, the Construction Agent, the Lessee, the Owner Trustee, the
Agent, the Lenders and the Holders have entered into the Participation Agreement
dated as of December 17, 1998 (the "Participation Agreement"); and

         WHEREAS, the Owner Trustee, the Lenders and the Agent have entered into
the Credit Agreement dated as of December 17, 1998 (the "Credit Agreement"); and

         WHEREAS, the Holders and the Owner Trustee have entered into the
Amended and Restated Trust Agreement dated as of December 17, 1998 (the "Trust
Agreement"); and

         WHEREAS, the Owner Trustee and the Construction Agent have entered into
the Agency Agreement dated as of December 17, 1998 (the "Agency Agreement"); and

         WHEREAS, the Owner Trustee and the Lessee have entered into the Lease
Agreement dated as of December 17, 1998 (the "Lease" or "Lease Agreement"); and

         WHEREAS, Aviation Sales, Subsidiaries of Aviation Sales, and the Agent
have entered into the Guaranty Agreement (Series A Obligations) dated as of
December 17, 1998 (the "Series A Guaranty Agreement"); and the Subsidiaries of
Aviation Sales and the Owner Trustee have entered into the Guaranty Agreement
(Lessee Obligations) dated as of December 17, 1998 (the "Lessee Guaranty
Agreement"); and

         WHEREAS, the parties hereto desire to amend the Participation
Agreement, the Credit Agreement and the Trust Agreement and certain other
Operative Agreements in the manner herein set forth effective as of the date
hereof;

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         NOW, THEREFORE, the Construction Agent, the Lessee, the Owner Trustee,
the Holders, the Agent and the Lenders do hereby agree as follows:

         1. DEFINITIONS. The terms "Participation Agreement", "Credit
Agreement", "Trust Agreement", "Agency Agreement", "Lease" and "Lease Agreement"
as used herein and in the Operative Documents (as defined in the Participation
Agreement) shall mean such agreements as hereby amended and modified, and as
further amended, modified, supplemented or restated from time to time in
accordance with the terms thereof. Unless the context otherwise requires, all
terms used herein without definition shall have the definition provided therefor
in the Participation Agreement.

         2. AMENDMENTS TO PARTICIPATION AGREEMENT. Subject to the conditions
hereof, the Participation Agreement is hereby amended, effective as of the date
hereof, as follows:

                  (a) Section 5.3(b)(xxii) of the Participation Agreement is
         amended in its entirety, so that as amended it reads as follows:

                           "(xxii) The Agent shall have received an Appraisal of
                  such Property showing that such Property has a value at least
                  equal to $37,500,000; and"

                  (b) Section 5.4(e) of the Participation Agreement is amended
         in its entirety, so that as amended it reads as follows:

                           "(e) with respect to each Initial Construction
                  Funding, the Agent and Owner Trustee shall have received a
                  copy of the Construction Budget for the completion of
                  Improvements to which such Funding relates, which Construction
                  Budget shall indicate a total Property Cost for such
                  Improvements, the Land on which such Improvements are to be
                  constructed, and all Transaction Expenses in connection
                  therewith, of not more than $43,000,000."

                  (c) The first sentence of Section 5.6 of the Participation
         Agreement is amended, so that as amended the sentence will read as
         follows: "On the Completion Date for each Property, the Construction
         Agent shall deliver to the Agent and the Owner Trustee an Officer's
         Certificate in the form attached hereto as EXHIBIT B specifying (a) the
         Completion Date for the construction of Improvements at the Property,
         and (b) the aggregate Property Cost of the Property."

                  (d) Section 10.3(g) of the Participation Agreement is amended
         in its entirety, so that as amended it reads as follows:

                           "(g) The Lessee and the Construction Agent agree that
                  the aggregate Property Cost of each Property shall at all
                  times be less than $43,000,000."

                  (e) Section 10.3(h)(i) of the Participation Agreement is
         amended by deleting the amount "$7,995,200" and inserting in its place
         "$7,995,200 prior to March 1, 2000, or $12,00,000 at any time on or
         after March 1, 2000".

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                  (f) Section 10.4(h) is further amended by adding the following
         sentence at the end of such Section: "The parties hereto agree that the
         failure to increase the amount of the Letter of Credit to $12,000,000
         by March 1, 2000, or at any time to maintain the Letter of Credit in
         the amount required by this Section 10.3(h), shall constitute an
         immediate and automatic Lease Event of Default, Credit Agreement Event
         of Default and Agency Agreement Event of Default)".

                  (g) Schedule 1 to the Participation Agreement is replaced in
         its entirety by the Schedule 1 to Participation Agreement attached
         hereto.

                  (h) Exhibit A to the Participation Agreement is replaced in
         its entirety by the Exhibit A to Participation Agreement attached
         hereto.

                  (i) Exhibit B to the Participation Agreement is replaced in
         its entirety by the Exhibit B to Participation Agreement attached
         hereto.

                  (j) Paragraph 5 of Exhibit J to the Participation Agreement is
         amended by deleting the phrase "invoice __________ for payment" and
         inserting in its place the phrase "invoice the Agent for payment."

                  (k) The following definition of "Amendment No. 1" is added to
         Appendix A to the Participation Agreement, at the appropriate place in
         such Appendix based on alphabetical order:

                           "'Amendment No. 1' shall mean that certain Amendment
                  Agreement No. 1 for Participation Agreement and Certain Other
                  Operative Agreements dated as of February 18, 2000 among the
                  Construction Agent, the Lessee, the Owner Trustee, the Agent,
                  and the Holders and Lenders party thereto".

                  (l) The definition of "Aviation Sales Credit Agreement Event
         of Default" in Appendix A to the Participation Agreement is amended by
         deleting the phrase "or any New Facility" from the third line thereof,
         and deleting the phrase "or New Facility" from the fifth and eighth
         lines thereof.

                  (m) The definition of "Construction Budget" in Appendix A to
         the Participation Agreement is amended by adding the following sentence
         immediately after such definition: "The initial Construction Budget for
         the Property located in Miramar, Florida is attached as Exhibit K to
         Amendment No. 1."

                  (n) The following definition of "Excluded Subsidiaries" is
         added to Appendix A to the Participation Agreement, at the appropriate
         place in such Appendix based on alphabetical order:

                           " 'Excluded Subsidiaries' shall have the meaning
                  assigned thereto in Exhibit D to the Lease Agreement."

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                  (o) The definition of "Guaranty Agreement" and "Guaranty" in
         Appendix A to the Participation Agreement is amended in its entirety,
         so that as amended it reads as follows:

                           "'Guaranty Agreement' or 'Guaranty' shall mean,
                  collectively, (a) the Guaranty Agreement (Series A
                  Obligations) dated as of the Initial Closing Date among each
                  Guarantor and the Agent, (b) the Guaranty Agreement (Lessee
                  Obligations) dated as of the Initial Closing Date among each
                  Guarantor (other than Aviation Sales) and the Lessor, and (c)
                  any other Guaranty Agreement by any Guarantor in favor of the
                  Lessor, the Agent, the Lenders and the Holders, as each such
                  agreement may be amended, supplemented, restated or modified
                  from time to time in accordance with the terms thereof."

                  (p) The definition of "Guarantors" in Appendix A to the
         Participation Agreement is amended in its entirety, so that as amended
         it reads as follows:

                           "'Guarantors' shall mean, collectively, Aviation
                  Sales and each of the Domestic Subsidiaries of Aviation Sales
                  other than Excluded Subsidiaries."

                  (q) The definition of "Letter of Credit" in Appendix to the
         Participation Agreement is amended in its entirety, so that as amended
         it reads as follows:

                           "'Letter of Credit' shall mean that certain standby
                  letter of credit dated as of the Initial Closing Date issued
                  by Citibank, N.A. ("Citibank") in favor of the Lessor and the
                  Agent (for itself and on behalf of the Series A Lenders) and
                  securing the obligations of the Lessee and the Construction
                  Agent under the Operative Agreements, as such letter of credit
                  may be amended, modified, restated or supplemented from time
                  to time by a letter of credit issued by Bank of America or
                  Citibank in favor of the Lessor and the Agent (for itself and
                  on behalf of the Series A Lenders)."

                  (r) Clause (b) of the definition of "Maximum Amount" in
         Appendix A to the Participation Agreement is amended, so that as
         amended such clause reads as follows:

                           "(b) the accreted value (calculated at a rate of
                  Seven and 702/1000 percent (7.702%) per annum) of any payments
                  previously made by the Construction Agent or the Lessee
                  regarding any and all Construction Period Properties and not
                  reimbursed; PLUS"

                  (s) The definition of "Scheduled Interest Payment Date" in
         Appendix A to the Participation Agreement is amended in its entirety,
         so that as amended it reads as follows:

                           "'Scheduled Interest Payment Date' shall mean (a) as
                  to any Eurodollar Loan (or Eurodollar Holder Funding), on the
                  last Business Day of the calendar month that includes the last
                  day of the Interest Period applicable to such Eurodollar Loan
                  (or Holder Funding), and (b) as to any Base Rate Loan (or Base
                  Rate Holder Funding), the last Business Day of each calendar
                  quarter, and (c) as to any Loan (or Holder Funding), the
                  Maturity Date."

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                  (t) The definition of "Tangible Personal Property" is deleted
         from Appendix A to the Participation Agreement.

                  (u) The definition of "Total Commitment" in Appendix A to the
         Participation Agreement is amended in its entirety, so that as amended
         it reads as follows:

                           "'Total Commitment' shall mean (a) with respect to
                  the Series A Loans, $37,840,000, and (b) with respect to the
                  Series B Loans, $3,870,000; PROVIDED, HOWEVER, that until the
                  Agent receives the Letter of Credit in the amount of
                  $12,000,000 pursuant to SECTION 10.3(H)(I), the 'Total
                  Commitment' shall mean (y) with respect to the Series A Loans,
                  $31,252,056, and (z) with respect to the Series B Loans,
                  $3,196,233; and PROVIDED FURTHER that upon the Agent's receipt
                  of such Letter of Credit in the amount of $12,000,000, until
                  the Series A Guaranty Cap (as defined in Amendment No. 1) is
                  no longer in effect and no longer limits any Guarantors'
                  Obligations (as set forth in Section 8 of Amendment No. 1),
                  Aviation Sales has obtained from the Existing Credit Agent and
                  required lenders under the Existing Aviation Sales Credit
                  Agreement, as amended, all necessary consents to such
                  elimination of the Series A Guaranty Cap, and any Defaults or
                  Events of Default (including "Standstill Events") referred to
                  in the Standstill Letter (as defined in Amendment No. 1) have
                  been permanently waived or cured, the 'Total Commitment' shall
                  mean (I) with respect to the Series A Loans, $35,200,000, and
                  (II) with respect to the Series B Loans, $3,600,000."

                  (u) The definition of "Total Holder Commitment" in Appendix A
         to the Participation Agreement is amended in its entirety, so that as
         amended it reads as follows:

                           "'Total Holder Commitment' shall mean $1,290,000;
                  PROVIDED, HOWEVER, that until the Agent receives the Letter of
                  Credit in the amount of $12,000,000 pursuant to SECTION
                  10.3(H)(I), the 'Total Holder Commitment' shall mean
                  $1,065,411; and PROVIDED FURTHER that upon the Agent's receipt
                  of such Letter of Credit in the amount of $12,000,000, until
                  the Series A Guaranty Cap (as defined in Amendment No. 1) is
                  no longer in effect and no longer limits any Guarantors'
                  Obligations (as set forth in Section 8 of Amendment No. 1),
                  Aviation Sales has obtained from the Existing Credit Agent and
                  required lenders under the Existing Aviation Sales Credit
                  Agreement, as amended, all necessary consents to such
                  elimination of the Series A Guaranty Cap, and any Defaults or
                  Events of Default (including "Standstill Events") referred to
                  in the Standstill Letter (as defined in the Standstill Letter)
                  have been permanently waived or cured, the 'Total Holder
                  Commitment' shall mean $1,200,000."

         3. AMENDMENTS TO CREDIT AGREEMENT. Subject to the conditions hereof,
the Credit Agreement is hereby amended, effective as of the date hereof, as
follows:

                  (a) Section 2.3(c) of the Credit Agreement is amended in its
         entirety, so that as amended it reads as follows:

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                           "(c) The aggregate amount of any borrowing
                  constituting Eurodollar Loans and Eurodollar Holder Fundings
                  and any conversion thereof shall be in an amount of at least
                  $100,000."

                  (b) The last sentence of Section 2.7 of the Credit Agreement
         is deleted and the following sentence is inserted in its place:

                  "Pursuant to the terms of the Participation Agreement, the
                  Borrower shall be deemed to have delivered such a notice upon
                  the delivery by the Construction Agent or the Lessee of a
                  notice in substantially the form of Exhibit L to Amendment No.
                  1. All or any part of outstanding Eurodollar Loans or Base
                  Rate Loans may be converted as provided herein, PROVIDED that
                  (i) no Base Rate Loan may be converted into a Eurodollar Loan
                  when any Event of Default has occurred and is continuing, (ii)
                  no Base Rate Loan may be converted into a Eurodollar Loan
                  which matures after the Maturity Date, (iii) during the
                  Commitment Period such conversion may only occur on the first
                  day of an Interest Period permitted pursuant to the terms of
                  SECTION 2.3 hereof and (iv) such notice of conversion shall
                  contain an election by the Borrower of an Interest Period for
                  such Eurodollar Loan to be created by such conversion and such
                  Interest Period shall be in accordance with the terms of the
                  definition of the term 'Interest Period' as set forth in
                  Appendix A to the Participation Agreement and PROVIDED,
                  FURTHER, that with respect to each conversion or continuation
                  of any Eurodollar Rate Loan, (y) if the Borrower shall fail to
                  give any required notice, such Loan shall be automatically
                  continued as a Eurodollar Rate Loan having a one-month
                  Interest Period, or (z) if continuation of any Eurodollar Rate
                  Loan is not permitted pursuant to the preceding provision,
                  such Loan shall be automatically converted to a Base Rate Loan
                  on the last day of such then expiring Interest Period."

                  (c) Schedule 1.2 to the Credit Agreement is replaced in its
         entirety by the Schedule 1.2 to Credit Agreement attached hereto.

         4. AMENDMENTS TO TRUST AGREEMENT. Subject to the conditions hereof, the
Trust Agreement is hereby amended, effective as of the date hereof, as follows:

                  (a) The last sentence of Section 3.8 of the Trust Agreement is
         deleted and the following sentence is inserted in its place:

                  "Pursuant to the terms of the Participation Agreement, the
                  Borrower shall be deemed to have delivered such a notice upon
                  the delivery by the Construction Agent or the Lessee of a
                  notice in substantially the form of Exhibit L to Amendment No.
                  1. All or any part of outstanding Eurodollar Holder Fundings
                  or Base Rate Holder Fundings may be converted as provided
                  herein, PROVIDED that (i) no Base Rate Holder Funding may be
                  converted into a Eurodollar Holder Funding when any Event of
                  Default has occurred and is continuing, (ii) no Base Rate
                  Holder Funding may be converted into a Eurodollar Holder
                  Funding which matures after the Maturity Date, (iii) during
                  the Commitment Period such conversion may only occur on the
                  first day of an Interest Period permitted pursuant to the
                  terms of SECTION 3.1 and (iv) such notice of conversion shall
                  contain an election by the Borrower of an Interest Period

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                  for such Eurodollar Holder Funding to be created by such
                  conversion and such Interest Period shall be in accordance
                  with the terms of the definition of the term 'Interest Period'
                  as set forth in Appendix A to the Participation Agreement and
                  PROVIDED, FURTHER, that with respect to each conversion or
                  continuation of any Eurodollar Rate Holder Funding, (y) if the
                  Borrower shall fail to give any required notice, such Holder
                  Funding shall be automatically continued as a Eurodollar Rate
                  Holder Funding having a one-month Interest Period, or (z) if
                  continuation of any Eurodollar Rate Holder Funding is not
                  permitted pursuant to the preceding provision, such Holder
                  Funding shall be automatically converted to a Base Rate Holder
                  Funding on the last day of such then expiring Interest
                  Period."

                  (b) Exhibit A to the Trust Agreement is replaced in its
         entirety by the Exhibit A to Trust Agreement attached hereto.

         5. AMENDMENTS TO AGENCY AGREEMENT. Subject to the conditions hereof,
the Agency Agreement is hereby amended, effective as of the date hereof, as
follows:

                  (a) Section 3.2(a)(ii) of the Agency Agreement is amended by
         deleting clause (C) thereof and inserting in its place the following:

                  "(C) result in the aggregate Construction Budget (as amended,
                  modified or revised) for any Property being larger than 100%
                  of the initial Construction Budget delivered to the Agent with
                  respect to such Property (prior to any amendments,
                  modifications or revisions); provided that in the case of the
                  Property located in Miramar, Florida, the initial Construction
                  Budget is deemed to be the Construction Budget attached as
                  Exhibit K to Amendment No. 1; and provided further that
                  nothing contained in this clause (C) shall be deemed to
                  increase the Commitment of any Lender or the Holder Commitment
                  of any Holder."

         6. AMENDMENTS TO LEASE AGREEMENT. Subject to the conditions hereof, the
Lease Agreement is hereby amended, effective as of the date hereof, as follows:

                  (a) Section 28.1(a) of the Lease is amended by adding the
         following sub-sections (vi) and (vii) at the end of such section:

                           "(vi) BORROWING BASE CERTIFICATES, NOTICES AND WAIVER
                  REQUESTS. Promptly (and in any event within five days after
                  the delivery thereof to the Existing Credit Agent or any
                  lender with respect to any Indebtedness), a copy of any
                  borrowing base certificate, notice, waiver request or any
                  other document or information that the Lessee or any of its
                  Subsidiaries may deliver to the Existing Credit Agent or any
                  such other lender or creditor.

                           "(vii) OTHER INFORMATION. Promptly such other
                  information concerning the business, operations, properties,
                  prospects or financial condition of Aviation Sales or any
                  Subsidiary as the Agent, the Lessor or the Majority Lenders
                  may reasonably request from time to time. "

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                  (b) Section 28.2 of the Lease is amended by adding the
         following subparagraphs (i) and (j) immediately after subparagraph (h):

                           "(i) NEW SUBSIDIARIES. Promptly (and in any event
                  within 15 days) after the acquisition or creation of any
                  Domestic Subsidiary (other than an Excluded Subsidiary), cause
                  to be delivered to the Agent for the benefit of itself, the
                  Lenders, the Holders and the Owner Trustee each of the
                  following:

                                    "(i) a Guaranty Agreement executed by such
                           Subsidiary substantially in the form of the Guaranty
                           Agreement (Series A Obligations) executed by the
                           Guarantors and the Agent on the Initial Closing Date;

                                    "(ii) a Guaranty Agreement executed by such
                           Subsidiary substantially in the form of the Guaranty
                           Agreement (Lessee Obligations) executed by the
                           Guarantors (other than Aviation Sales) and the Lessor
                           on the Initial Closing Date;

                                    "(iii) an opinion of outside counsel to such
                           Subsidiary (which counsel shall be acceptable to the
                           Agent) dated as of the date of delivery of the
                           Guaranty Agreements provided for in this SECTION
                           28.2(K) and addressed to the Agent, the Owner Trustee
                           and each of the Lenders, in form and substance
                           reasonably acceptable to the Agent (which opinion may
                           include assumptions and qualifications of similar
                           effect to those contained in the opinion of counsel
                           delivered by Akerman Senterfitt & Eidson, P.A. on the
                           Initial Closing Date (the "Initial ASE Opinion")),
                           including opinions with respect to such Subsidiary
                           and each such Guaranty Agreement that are
                           substantively identical to the opinions set forth in
                           paragraphs 2, 3, 4, 5(a), 5(b), 5(c), 5(d), 5(e),
                           5(f) and 6 (on pages 5-7) of the Initial ASE Opinion;

                                    "(iv) a certificate of the Secretary or an
                           Assistant Secretary of such Subsidiary in the form
                           attached as EXHIBIT E to the Participation Agreement
                           or in such other form as is reasonably acceptable to
                           the Agent attaching and certifying as to (A) the
                           resolutions of the Board of Directors (or, as
                           applicable, the partners, members or other equivalent
                           governing body) of such Subsidiary duly authorizing
                           the execution, delivery and performance by such
                           Subsidiary of each of the Operative Agreements to
                           which it is or will be a party, (B) its certificate
                           of incorporation (or other equivalent charter or
                           organizational documents), in each case certified as
                           of a recent date by the Secretary of State of the
                           State of its incorporation (or organization), (C) its
                           bylaws (or other equivalent documents relating to the
                           operation, governance or management of such
                           Subsidiary, and (D) the incumbency and signature of
                           persons authorized to execute and deliver on its
                           behalf the Operative Agreements to which it is a
                           party; and

                                    "(v) a good standing certificate from the
                           appropriate officer of its state of incorporation (or
                           organization) and each state in which it is required
                           to be qualified to do business as to its good
                           standing in such state."

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                  "(j) AVAILABILITY UNDER REVOLVING CREDIT FACILITY. The
         Borrower shall at all times (until the Letter of Credit in the amount
         of $12,000,000 is issued and delivered to the Agent in accordance with
         Section 10.1(h) of the Participation Agreement) maintain at least
         $4,004,800 of unused availability under the revolving credit facility
         established by the Existing Aviation Sales Credit Agreement, as
         amended."

                  (b) Section 28.3(a) of the Lease is amended by deleting the
         word "and" at the end of subparagraph (i), deleting the period at the
         end of subparagraph (ii), inserting in place of such period a
         semi-colon followed by the word "and", and adding the following
         subparagraph (iii) at the end of such Section:

                           "(iii) Indebtedness of the Lessee under unsecured
                  Accommodation Obligations of the Lessee that relate to
                  Indebtedness (the "Underlying Indebtedness") of its
                  Subsidiaries, PROVIDED that the Underlying Indebtedness of the
                  respective Subsidiaries (A) is permitted under SECTION 10.01
                  of the Existing Aviation Sales Credit Agreement and (B)
                  constitutes Indebtedness for borrowed money or Indebtedness
                  arising under Capital Leases or Operating Leases."

                  (c) The Lease is further amended by adding the following
         Sections 28.5, 28.6 and 28.7 at the end of Article XVIII thereof:

                           "28.5 AMENDMENTS AND WAIVERS. Notwithstanding
                  anything contained in this Lease or any other Operative
                  Agreement to the contrary, no provision of Section 28.1, 28.2,
                  28.3 or 28.4 hereof may be amended, waived, discharged or
                  terminated except by an instrument in writing signed by the
                  Lessor and the Majority Lenders.

                           "28.6 ADDITIONAL COVENANTS. The covenants contained
                  in this Article XVIII are in addition to any covenants or
                  terms contained in any other provisions of this Lease or any
                  other Operative Agreement. Nothing contained in this Article
                  XVIII shall be deemed to limit the generality of any covenant
                  or term contained in any other provision of this Lease or any
                  Operative Agreement.

                           "28.7 DEFINITIONS. Capitalized terms used in this
                  Article XVIII (including Sections 28.1, 28.2, 28.3, 28.4,
                  28.5, 28.6 and 28.7 hereof) shall have the respective meanings
                  assigned thereto in Exhibit D to this Lease, or if not defined
                  therein, then the meanings otherwise assigned thereto in this
                  Lease, or if not defined therein, then the meanings assigned
                  thereto in the Participation Agreement. The definitions set
                  forth in Exhibit D hereto shall apply only to the provisions
                  of this Article XVIII, and shall not apply to any other
                  provisions of this Lease or any other Operative Agreement
                  (except to the extent such other provisions may refer to or
                  incorporate any provision of this Article XVIII).

                  (d) The Lease Agreement is further amended by adding the
         Exhibit D to Lease Agreement that is attached hereto.

         7. MOST FAVORABLE COVENANTS. The parties agree that, if any
Indebtedness (or any document evidencing any Indebtedness) to which Aviation
Sales or any of its Subsidiaries is a party

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contains any covenants (the "Other Covenants") which are more restrictive (in
any respect) on Aviation Sales or any Subsidiary (or more protective of any
lender or creditor relating to such Indebtedness) than the covenants contained
in Article XVIII of the Lease, then upon the request of the Agent, any such
Other Covenant shall be deemed to be added immediately to the covenants set
forth in Article XVIII, and the parties shall promptly take any action
(including without limitation executing and delivering any amendment to the
Lease) which the Agent may deem appropriate to add any such Other Covenant to
Article XVIII of the Lease.

         8. TEMPORARY CAP ON GUARANTORS' OBLIGATIONS UNDER GUARANTY AGREEMENT
(SERIES A OBLIGATIONS). Prior to March 31, 2000, the Guarantors' Obligations of
each Guarantor under any Guaranty Agreement (Series A Obligations) shall be
limited to an amount (the "Series A Guaranty Cap") equal to $36,252, 056
principal amount of Borrower's Liabilities (as defined therein), plus interest
on such principal amount and related fees and expenses. At any time on or after
March 31, 2000, the Series A Guaranty Cap shall no longer be in effect, and this
Amendment Agreement shall no longer impose any limit on the Guarantors'
Obligations of any Guarantor under any Guaranty Agreement (Series A
Obligations).

         9. RESTRICTION ON FUNDINGS. The parties agree that until the Agent
receives the Letter of Credit in the amount of $12,000,000 pursuant to Section
10.3(h)(i) of the Participation Agreement, neither the Owner Trustee nor the
Construction Agent may request or receive, and the Lenders and Holders shall not
be required to make, any Funding under the Operative Agreements (other than a
Funding the proceeds of which are used solely to pay Transaction Expenses in
connection with this Amendment Agreement).

         10. AGREEMENT AND CONFIRMATION BY GUARANTORS. Each of the undersigned
Guarantors has joined in the execution of this Amendment Agreement for the
purpose of (i) agreeing to the amendments to the Participation Agreement, the
Credit Agreement, the Trust Agreements and other Operative Agreements contained
herein and (ii) confirming its guarantee of payment of all Borrower's
Liabilities (as defined in the Series A Guaranty Agreement) and all Lessee's
Liabilities (as defined in the Lessee Guaranty Agreement).

         11. REPRESENTATIONS AND WARRANTIES. The Lessee and the Construction
Agent hereby certify that:

                  (a) The representations and warranties made by the Lessee and
         the Construction Agent in Section 7 (other than in Section 7.3(f)(i))
         of the Participation Agreement are true on and as of the date hereof;
         and the representations in warranties set forth in Section 7.3(f)(i) of
         the Participation Agreement are true on and as of the date set forth in
         such Section;

                  (b) (i) The audited consolidated financial statements of each
         of the Construction Agent and the Lessee as at December 31, 1998,
         copies of which have been furnished to the Agent and the Owner Trustee,
         were prepared in accordance with GAAP and fairly present the financial
         condition of each of the Construction Agent and the Lessee and their
         Subsidiaries on a consolidated basis as of such date and their
         consolidated results of operations for the fiscal year then ended and
         (ii) the unaudited consolidated financial statements as at September
         30, 1999, copies of which have been furnished to the Agent and

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         the Owner Trustee, were prepared in accordance with GAAP (subject to
         normal year-end adjustments) and fairly present the financial condition
         of the Construction Agent and the Lessee and their Subsidiaries on a
         consolidated basis as of such date and their consolidated results of
         operations for the fiscal quarter then ended.

                  (c) There has been no material change in the condition,
         financial or otherwise, of the Lessee or the Construction Agent since
         the Initial Closing Date, other than changes in the ordinary course of
         business, none of which has been a material adverse change;

                  (d) The business and properties of the Lessee and the
         Construction Agent are not, and since the Initial Closing Date have not
         been, adversely affected in any substantial way as the result of any
         fire, explosion, earthquake, accident, strike, lockout, combination of
         workmen, flood, embargo, riot, activities of armed forces, war or acts
         of God or the public enemy, or cancellation or loss of any major
         contracts;

                  (e) (Other than the "Standstill Events", as defined in the
         Standstill, Waiver and Consent Letter dated February __, 2000, among
         Aviation Sales, Bank of America and the Owner Trustee (the "Standstill
         Letter")) no event has occurred and no condition exists which, upon the
         consummation of the transaction contemplated hereby, constitutes a
         Default or an Event of Default on the part of the Lessee or the
         Construction Agent under the Participation Agreement or any other
         Operative Agreement, either immediately or with the lapse of time or
         the giving of notice, or both;

                  (f) Exhibit M attached to this Amendment Agreement identifies
         each item of Equipment that has been or will be acquired by the Owner
         Trustee (or the Construction Agent on behalf of the Owner Trustee);

                  (g) Aviation Sales has complied with all terms of the
         Subordinated Notes (defined below) and the Note Indenture (defined
         below), including without limitation having made the full payment on
         the Senior Notes that was required on February 15, 2000. For the
         purposes of this Section:

                           "Note Indenture" means the Indenture dated as of
                  February 17, 1998 by and among Aviation Sales, certain
                  guarantors and SunTrust Bank Central Florida, National
                  Association, as Trustee, as amended; and

                           "Subordinated Notes" means the 8-1/8% Senior
                  Subordinated Notes issued pursuant to the Note Indenture in an
                  original aggregate principal amount of $165,000,000 and all
                  additional Senior Subordinated Notes which may be issued
                  pursuant to the Note Indenture in an aggregate principal
                  amount of up to $85,000,000";

                  (h) The $43,000,000 initial Construction Budget attached
         hereto as Exhibit K is adequate to ensure the Completion of the Miramar
         Property (including all Improvements thereon) in accordance with the
         Plans and Specifications prior to the Construction Period Termination
         Date; and all of the budget amounts and categories set forth in such
         Construction Budget are accurate and complete in all respects.

                                       11
<PAGE>

         12. CONDITIONS PRECEDENT. The effectiveness of this Amendment Agreement
shall be subject to fulfillment of the following conditions precedent:

         (a) The Agent shall have received on the date hereof, in form and
substance satisfactory to the Agent, the following:

                  (i) a fully-executed original of this Amendment Agreement and
         replacement Notes and Holder Certificate, reflecting the amended
         Commitments and Holder Commitment (in substitution for the Notes and
         Holder Certificate previously issued to Bank of America);

                  (ii) a fully-executed amended and restated Mortgage Instrument
         with respect to the Property in Miramar, Florida (the "Miramar
         Property");

                  (iii) a fully-executed modification of the Memorandum of Lease
         and Lease Supplement with respect to the Miramar Property;

                  (iv) a fully-executed notice of future advance with respect to
         the Miramar Property;

                  (v) an endorsement to the title insurance policies with
         respect to the Miramar Property, reflecting the amended documents and
         the increased amounts of Commitments and Holder Commitments;

                  (vi) an opinion of outside counsel to the Lessee and the
         Guarantors, addressed to the Agent, the Owner Trustee and the Lenders;

                  (vii) a certificate of the Secretary or an Assistant Secretary
         of each of the Lessee and each Guarantor in such form as is reasonably
         acceptable to the Agent attaching and certifying as to (A) the
         resolutions of the Board of Directors of Lessee or such Guarantor (as
         the case may be) duly authorizing the execution, delivery and
         performance by Lessee or such Guarantor (as the case may be) of this
         Amendment Agreement and each of the other Operative Agreements
         delivered in connection with this Amendment Agreement to which such
         Lessee or Guarantor is or will be a party, (B) the fact that neither
         its certificate of incorporation nor its bylaws have been changed from
         the versions that were certified and delivered to the Agent on the
         Initial Closing Date (or if they have been changed, such certificate of
         incorporation or by-laws certified as of a recent date by the Secretary
         of State of the State of its incorporation), and (C) the incumbency and
         signature of persons authorized to execute and deliver on its behalf
         this Amendment Agreement and each of the other Operative Agreements
         delivered in connection with this Amendment Agreement to which such
         Lessee or Guarantor is a party;

                  (viii) payment by the Lessee of all fees required by that
         certain letter agreement dated as of February 18, 2000 between the
         Lessee and the Agent, and that certain invoice dated February __, 2000,
         from Banc of America Securities LLC to Aviation Sales, and accepted by
         Dale S. Baker, as Chairman of the Board, President and Chief Executive
         Offficer of Aviation Sales;

                                       12
<PAGE>

                  (ix) evidence of an irrevocable written request by the Lessee
         to Citibank that the Letter of Credit be increased to $12,000,000 by
         March 1, 2000;

                  (x) a fully executed amendment to the Intercreditor Agreement;

                  (xi) a fully executed Standstill Letter, and the satisfaction
         of the conditions to effectiveness of the Standstill Letter; and

                  (xii) any additional agreements, instruments or documents
         which it may reasonably request in connection herewith;

         (b) The correctness in all material respects on the date hereof of the
representations and warranties of the Owner Trustee, Construction Agent and the
Lessee contained herein and in each of the Operative Agreements; and

         (c) No Default or Event of Default shall have occurred and be
continuing on the date hereof (except the Standstill Events).

         13. RELEASE. Aviation Sales and its Subsidiaries acknowledge that they
have no existing defense, counterclaim, offset, cross-complaint, claim or demand
of any kind or nature whatsoever that can be asserted to reduce or eliminate all
or any part of their or the Owner Trustee's respective liability to pay or
perform any obligations pursuant to any of the Operative Agreements or any other
documents which evidence or secure any obligations owed under any Operative
Agreement. In consideration for the execution of this Amendment Agreement,
Aviation Sales and its Subsidiaries hereby release and forever discharge, Bank
of America, the Agent, the Lenders, the Holders and the Owner Trustee and all of
their respective officers, directors, employees, affiliates and agents
(collectively, the "Released Parties") from any and all actions, causes of
action, debts, dues, claims, demands, liabilities and obligations of every kind
and nature, both in law and in equity, known or unknown, now existing
(collectively, the "Release Claims"), which might be asserted against any of the
Released Parties. This Release applies to all matters arising out of or relating
to the Operative Agreements, any Property, any obligations due under any of the
Operative Agreements and this Amendment Agreement, commitment letters with
respect to other loan facilities, and the lending and borrowing relationships,
and (to the extent any Release Claims relating to such deposit relationships are
now known to Aviation Sales or any of its Subsidiaries) the deposit
relationships, between Aviation Sales or its Subsidiaries, and Bank of America,
the Agent, the Lenders, the Holders and the Owner Trustee, including the
administration, collateralization and funding thereof.

         14. ENTIRE AGREEMENT. This Amendment Agreement sets forth the entire
understanding and agreement of the parties hereto in relation to the subject
matter hereof and supersedes any prior negotiations and agreements among the
parties relative to such subject matter. No promise, conditions, representation
or warranty, express or implied, not herein set forth shall bind any party
hereto, and no one of them has relied on any such promise, condition,
representation or warranty. Each of the parties hereto acknowledges that, except
as in this Amendment Agreement otherwise expressly stated, no representations,
warranties or commitments, express or implied, have been made by any other party
to the other. None of the terms or conditions of this Amendment Agreement may be
changed, modified, waived or canceled orally or otherwise, except by writing,
signed by all the

                                       13
<PAGE>

parties hereto, specifying such change, modification, waiver or cancellation of
such terms or conditions, or of any proceeding or succeeding breach thereof.

         15. FULL FORCE AND EFFECT OF OPERATIVE AGREEMENTS. Except as hereby
specifically amended, modified or supplemented, the Participation Agreement, the
Lease, the Credit Agreement, the Trust Agreement, the Guaranty Agreements and
all of the other Operative Agreements are hereby confirmed and ratified in all
respects and shall remain in full force and effect according to their respective
terms.

         16. COUNTERPARTS. This Amendment Agreement may be executed in one or
more counterparts, each of which shall be deemed an original but all of which
together shall constitute one and the same instrument.

                  [Remainder of page intentionally left blank.]

                                       14
<PAGE>

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

                    AVIATION SALES COMPANY,
                    as Construction Agent

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

                    AVIATION SALES COMPANY,
                    as Lessee

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

                    FIRST SECURITY BANK, NATIONAL
                    ASSOCIATION,
                    not individually, except as
                    expressly stated under the Operative
                    Agreements, but solely as Owner
                    Trustee under the Aviation Sales
                    Trust 1998-1

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

                    BANK OF AMERICA, N.A., as a Holder and as a Lender

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

                    BANK OF AMERICA, N.A., as Administrative Agent

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

                              SIGNATURE PAGE 1 OF 3

<PAGE>

                              JOINDER BY GUARANTORS

The undersigned Guarantors hereby join in and consent to this Amendment
Agreement.

                           AVIATION SALES COMPANY
                           AVIATION SALES MANUFACTURING COMPANY
                           AVIATION SALES PROPERTY MANAGEMENT CORP.
                           AVIATION SALES FINANCE COMPANY
                           TIMCO ENGINE CENTER, INC.
                           AVS/KRATZ-WILDE MACHINE COMPANY
                           APEX MANUFACTURING, INC.
                           AEROCELL STRUCTURES, INC.
                           AVIATION SALES DISTRIBUTION
                                 SERVICES COMPANY
                           AVIATION SALES BEARINGS COMPANY
                           AVIATION SALES LEASING COMPANY
                           WHITEHALL CORPORATION
                           TRIAD INTERNATIONAL MAINTENANCE
                                 CORPORATION (SUCCESSOR IN
                                 INTEREST TO AERO CORPORATION
                                 AND AERO CORP MACON, INC.)
                           AVIATION SALES MAINTENANCE, REPAIR &
                                 OVERHAUL COMPANY
                           CARIBE AVIATION, INC.
                           AIRCRAFT INTERIOR DESIGN, INC.
                           AERO HUSHKIT CORPORATION
                           HYDROSCIENCE, INC.
                           AVIATION SALES SPS I, INC.

                           By:
                              --------------------------------------------
                              Name:
                              Title:________ of each of the foregoing Guarantors

                              SIGNATURE PAGE 2 OF 3

<PAGE>

                                   AVSRE, L.P.
                                   BY: AVIATION SALES PROPERTY MANAGEMENT CORP.,
                                       ITS GENERAL PARTNER

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

                              SIGNATURE PAGE 3 OF 3EXHIBIT 10.4

                           AMENDMENT NO. 8 AND WAIVER

                          Dated as of February 18, 2000

                                       to

                   THIRD AMENDED AND RESTATED CREDIT AGREEMENT

                          Dated as of October 17, 1997

                  This Amendment No. 8 and Waiver (the "Amendment") dated as of
February 18, 2000 is entered into among AVIATION SALES DISTRIBUTION SERVICES
COMPANY, a Delaware corporation ("ASOC"), AEROCELL STRUCTURES, INC., an Arkansas
corporation ("Aerocell"), AVS/KRATZ-WILDE MACHINE COMPANY, a Delaware
corporation ("Kratz-Wilde"), WHITEHALL CORPORATION, a Delaware corporation
("Whitehall"), TRIAD INTERNATIONAL MAINTENANCE CORPORATION, a Delaware
corporation ("TIMCO"), APEX MANUFACTURING, INC., an Arizona corporation
("Apex"), CARIBE AVIATION, INC., a Florida corporation ("Caribe"), AIRCRAFT
INTERIOR DESIGN, INC., a Florida corporation ("Design"), AVIATION SALES LEASING
COMPANY, a Delaware corporation ("Leasing"), TIMCO ENGINE CENTER, INC., a
Delaware corporation ("TIMCO Engine"), AVIATION SALES COMPANY, a Delaware
corporation ("Parent"), and the "Lenders" (as defined in the Credit Agreement
identified below) a party hereto. Capitalized terms used herein without
definition are used herein as defined in the Credit Agreement.

                             PRELIMINARY STATEMENT:

                  WHEREAS, ASOC, Aerocell, Kratz-Wilde, Whitehall, TIMCO, Apex,
Caribe, and Design, as Borrowers, Parent, Citicorp USA, Inc., as Agent, and
certain financial institutions, as Lenders and Issuing Banks, are parties to
that certain Third Amended and Restated Credit Agreement dated as of October 17,
1997, as heretofore amended (the "Credit Agreement");

                  WHEREAS, the Borrowers have requested a $15,500,000 term loan
in addition to the Revolving Loans available under the terms of the Credit
Agreement and Citicorp USA, Inc. has agreed to provide such term loan to the
Borrowers on the terms and conditions set forth in EXHIBIT A attached hereto and
made a part hereof;

                  WHEREAS, the Lenders party hereto have consented to the
aforesaid additional extension of credit on the terms and conditions set forth
below; and

                  WHEREAS, in consideration of the foregoing, the parties hereto
have agreed to amend the Credit Agreement as set forth below in SECTION 1,
subject to the terms and conditions stated in this Amendment;

                  NOW, THEREFORE, the parties hereto hereby agree as follows:

<PAGE>

                  SECTION 1. AMENDMENTS TO THE CREDIT AGREEMENT. Effective as of
February 18, 2000, subject to the satisfaction of the conditions precedent set
forth in SECTION 3 hereof, the Credit Agreement is hereby amended as follows:

                  1.1  SECTION 1.01 is amended to add the following definitions:

         "Standstill Letter" means that certain Standstill Letter dated
         January 31, 2000 executed and delivered to Parent and the Borrowers by
         the Lenders.

         "Supplemental Term Loan" means that certain term loan made by Citicorp
         USA, Inc., to the Borrowers pursuant to the Term Loan Note dated
         February 18, 2000, a copy of which is attached as EXHIBIT A to
         Amendment No. 8 and Waiver dated as of February 18, 2000 to this
         Agreement.

                  1.2 SECTION 2.05 is amended to add the following provision at
the end thereof:

         In no event shall proceeds of the Loans be used, directly or
         indirectly, to provide a deposit in escrow or otherwise or cash
         collateral for any obligation under the TROL Documents or any letter of
         credit issued in support thereof which is not a Letter of Credit or to
         make any payment of Indebtedness incurred under or in connection with
         the TROL Documents other than obligations incurred under the TROL Lease
         in the ordinary course of business of Parent.

                  1.3 SECTION 3.01(A) is amended to delete the word "or" at the
end of CLAUSE (III) thereof, delete the "." at the end of CLAUSE (IV) thereof
and substitute therefor a "; and", and add the following clauses at the end
thereof:

         (v) for the purpose of supporting, directly or indirectly, Indebtedness
         under the TROL Documents or incurred in connection with the development
         of and construction on the Property financed thereunder other than the
         Letter of Credit outstanding as of February 18, 2000 and an amendment
         thereto or additional Letter of Credit issued on or after March 1, 2000
         providing for additional support for Indebtedness under the TROL
         Documents in an amount not to exceed $4,004,800, subject to all of the
         other conditions of this Agreement and the Standstill Letter.

                  1.4 SECTION 8.03 is amended to (i) delete the provisions of
CLAUSE (A) thereof in their entirety and substitute the following therefor:

         (a) Borrowing Base Certificate. ASOC shall provide the Agent and the
         Revolving Lenders (i) on Wednesday of each calendar week commencing on
         February 23, 2000, or if a Wednesday is not a Business Day, the
         immediately succeeding Business Day, with a Borrowing Base Certificate
         for Eligible Receivables as of the immediately preceding Friday, (ii)
         on a bi-weekly basis, on Wednesday of the applicable week, commencing
         on February 23, 2000, or if a Wednesday is not a Business Day, the
         immediately succeeding Business Day, with a Borrowing Base Certificate
         for Eligible Inventory of ASOC as of the immediately preceding Friday,
         and (iii) on a monthly basis, commencing on March 8, 2000 and
         continuing on the second Wednesday of each month thereafter, or if a
         Wednesday is not a Business Day, the immediately succeeding Business
         Day, with a

                                       2
<PAGE>

         Borrowing Base Certificate for Eligible Inventory of Persons other than
         ASOC as of the immediately preceding month end, in each instance,
         together with a calculation of the Texas Tax Reserve as of the date
         thereof if such Texas Tax Reserve exceeds $200,000 and such supporting
         documents as the Agent deems desirable, all certified as being true and
         correct by the chief financial officer, chief executive officer, or
         controller of ASOC.

and (ii) add the following provision at the end of CLAUSE (B) thereof:

         Notwithstanding the foregoing, Parent and the Borrowers shall engage an
         independent appraiser satisfactory to the Agent by no later than
         February 18, 2000 to prepare an appraisal of ASOC's Inventory and
         Inventory of such other Borrowers and their respective Subsidiaries as
         the Agent shall require on a basis satisfactory to the Agent and shall
         cooperate fully with such appraiser to enable it to complete and
         deliver the resultant appraisal to the Agent and Lenders by no later
         than March 15, 2000.

                  1.5 SECTION (A) 10.01(C) is amended to delete the reference
thereat to "Intentionally omitted." and substitute the following therefor:

         (c) Indebtedness incurred with respect to the Supplemental Term Loan,
         whether directly or by Accommodation Obligation;

                  1.6 SECTION (A) 10.03(E) is amended to delete the reference
thereat to "Intentionally omitted." and substitute the following therefor:

         (e) Liens securing the Indebtedness permitted under SECTION (A)
         10.01(C) pursuant to the Collateral Documents Amendment, a copy of
         which is attached as EXHIBIT A to Amendment No. 8 and Waiver dated as
         of February 18, 2000 to this Agreement;

                  1.7 SECTION (A) 10.05(D) is amended to delete the reference
thereat to "Intentionally omitted." and substitute the following therefor:

         (d) Accommodation Obligations with respect to Indebtedness permitted
         under SECTION (A) 10.01(C) pursuant to the Guaranty, a copy of which is
         attached as EXHIBIT A to Amendment No. 8 and Waiver dated as of
         February 18, 2000 to this Agreement;

                  1.8 SECTION (B) 10.17(F) is amended to delete the provisions
thereof in their entirety and substitute the following therefor:

         (f) grant or suffer to exist any Lien against any property or asset of
         the Parent other than Liens securing the Obligations and the Parent's
         guarantee of the Indebtedness of the Borrowers with respect to the
         Supplemental Term Loan and an assignment of its leasehold interest
         under the TROL Lease to secure its obligations under the TROL
         Documents.

                  1.9 SCHEDULE 1.01.3 is hereby deleted in its entirety and the
Schedule 1.01.3 attached hereto and made a part hereof substituted therefor.

                                       3
<PAGE>

                  SECTION 2.  WAIVER.

                  2.1 The Issuing Bank and Lenders signatory hereto hereby waive
their rights to the application of the "Excess Designated Prepayment" (as
defined below) which are payable pursuant to SECTION 4.01(B)(I) and as provided
in SECTION 4.01(B)(IV) of the Credit Agreement to Revolving Loans owing to such
Lenders and Letter of Credit Obligations (or required to be deposited as Cash
Collateral in respect of Letter of Credit Obligations) as provided in SECTION
4.01(B)(VII) or SECTION 4.02(B)(II) of the Credit Agreement; PROVIDED THAT the
Excess Designated Prepayment is remitted to Citicorp USA, Inc. for application
on the Supplemental Term Loan concurrently with the balance of such Net Cash
Proceeds of Sale being remitted to the Agent for application (i) FIRST, to the
amount by which the aggregate principal of the Revolving Loans exceeds (a) the
Maximum Revolving Credit Amount MINUS (b) the Letter of Credit Obligations and
(ii) THEN, under SECTION 4.01(B)(VII).

                  2.2 For purposes of Section 2.1 above, the term"Excess
Designated Prepayment" means the amount by which Net Cash Proceeds of Sale of
the property identified on EXHIBIT B attached hereto and made a part hereof
exceed the sum of (i) the amount by which the aggregate principal of the
Revolving Loans exceeds (a) the Maximum Revolving Credit Amount MINUS (b) the
Letter of Credit Obligations, PLUS (ii) the amount by which that portion of the
Designated Prepayments arising from such Net Cash Proceeds of Sale exceeds that
portion of the Borrowing Base allocable to such property (or, in the event of a
sale of Capital Stock, the property of the issuer of such Capital Stock) as of
the date of such prepayment.

                  SECTION 3. CONDITIONS PRECEDENT TO EFFECTIVENESS OF THIS
AMENDMENT. This Amendment shall become effective as of February 18, 2000, if,
and only if the Agent shall have received:

         (a) a facsimile or original executed copy of this Amendment executed by
         the Parent, each Borrower, the Issuing Bank and Lenders constituting at
         least the Requisite Lenders;

         (b) the written consent of the beneficiaries of the TROL Guaranties to
         the incurrence of the Indebtedness with respect to the Supplemental
         Term Loan permitted by SECTION (A) 10.01(C), as amended hereby;

         (c) an opinion of counsel to the Borrowers and Parent with respect to
         non-contravention of the TROL Documents and agreements under which the
         Senior Subordinated Notes have been issued;

         (d)  a Borrowing Base Certificate dated as of February 11, 2000; and

         (e) all instruments and agreements required to perfect Liens against
         all Property included on the February 15, 2000 Borrowing Base
         Certificate, in proper form for recordation, signed by the appropriate
         Borrower.

                  SECTION 4. REPRESENTATIONS AND WARRANTIES; ACKNOWLEDGMENT. The
Borrowers hereby represent and warrant as follows:

                                       4
<PAGE>

                  4.1 This Amendment and the Credit Agreement as previously
executed and delivered and as amended hereby constitute legal, valid and binding
obligations of the Borrowers and are enforceable against the Borrowers in
accordance with their terms.

                  4.2 No Event of Default or Potential Event of Default exists,
other than as referenced in that certain Waiver and Consent Letter dated
December 27, 1999 or otherwise heretofore disclosed by Parent to the Agent and
Lenders, or would result from any of the transactions contemplated by this
Amendment. No event of default or default has occurred and continues unwaived
under the terms of any of the TROL Documents, except as described in that
certain Standstill, Waiver and Consent Letter attached hereto as EXHIBIT C and
made a part hereof, or any of the agreements and documents executed with respect
to the Senior Subordinated Notes or under which the Senior Subordinated Notes
have been issued. The Borrowers hereby acknowledge that the Agent, Lenders and
Issuing Bank have reserved all rights with respect to Events of Default and
Potential Events of Default existing as of the date of this Amendment, subject
only to the agreement of the Lenders to continue providing financing
accommodations under the Credit Agreement on the conditions set forth in that
certain Standstill Letter dated January 31, 2000.

                  4.3 Upon the effectiveness of this Amendment, each Borrower
hereby reaffirms all covenants, representations and warranties made by it in the
Credit Agreement to the extent the same are not amended hereby and agree that
all such covenants, representations and warranties shall be deemed to have been
remade as of the date this Amendment becomes effective (unless a representation
and warranty is stated to be given on and as of a specific date, in which case
such representation and warranty shall be true, correct and complete as of such
date).

                  SECTION 5. REFERENCE TO AND EFFECT ON THE CREDIT AGREEMENT.

                  5.1 Upon the effectiveness of this Amendment, each reference
in the Credit Agreement to "this Agreement", "hereunder", "hereof", "herein" or
words of like import shall mean and be a reference to the Credit Agreement, as
amended hereby, each reference to the Credit Agreement in any other document,
instrument or agreement executed and/or delivered in connection with the Credit
Agreement shall mean and be a reference to the Credit Agreement as amended
hereby.

                  5.2 Except as specifically amended above, the Credit
Agreement, the Notes and all other Loan Documents shall remain in full force and
effect and are hereby ratified and confirmed.

                  5.3 The execution, delivery and effectiveness of this
Amendment shall not operate as a waiver of any right, power or remedy of any
Lender or Issuing Bank or the Agent under the Credit Agreement, the Notes or any
of the other Loan Documents, nor constitute a waiver of any provision contained
therein, except as specifically set forth herein.

                  SECTION 6. EXECUTION IN COUNTERPARTS. This Amendment may be
executed in any number of counterparts and by different parties hereto in
separate counterparts, each of which when so executed and delivered shall be
deemed to be an original and all of which taken together shall constitute but
one and the same instrument. Delivery of an executed counterpart of

                                       5
<PAGE>

this Amendment by telecopier shall be effective as delivery of a manually
executed counterpart of this Amendment.

                  SECTION 7. GOVERNING LAW. This Amendment shall be governed by
and construed in accordance with the laws of the State of New York.

                  SECTION 8. HEADINGS. Section headings in this Amendment are
included herein for convenience of reference only and shall not constitute a
part of this Amendment for any other purpose.

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

AVIATION SALES DISTRIBUTION                 AEROCELL STRUCTURES, INC.
 SERVICES COMPANY

By___________________________               By________________________
  Harold M. Woody                             Harold M. Woody
  Executive Vice President                    Title:

AVS/KRATZ-WILDE MACHINE COMPANY             WHITEHALL CORPORATION

By___________________________               By________________________
  Harold M. Woody                             Harold M. Woody
  Title:                                      Title:

TRIAD INTERNATIONAL MAINTENANCE             APEX MANUFACTURING, INC.
 CORPORATION

By___________________________               By________________________
  Harold M. Woody                             Harold M. Woody
  Title:                                      Title:

AIRCRAFT INTERIOR DESIGN, INC.              CARIBE AVIATION, INC.

By___________________________               By________________________
  Harold M. Woody                             Harold M. Woody
  Title:                                      Title:

                                       6
<PAGE>

AVIATION SALES COMPANY                      AVIATION SALES LEASING COMPANY

By__________________________                By________________________
  Harold M. Woody                             Harold M. Woody
  Title:                                      Title:

                                REMAINDER OF PAGE
                            INTENTIONALLY LEFT BLANK

                                       7
<PAGE>

TIMCO ENGINE CENTER, INC.

By__________________________
  Harold M. Woody
  Title:

CITICORP USA, INC.                          HELLER FINANCIAL, INC.
as Agent and Lender

By___________________________               By__________________________
  Name:                                       Name:
  Title:                                      Title:

NATIONAL CITY COMMERCIAL                    CITIBANK, N.A.
FINANCE, INC.                               as Issuing Bank

By____________________________              By__________________________
  Name:                                       Name:
  Title:                                      Title:

FIRST UNION COMMERCIAL                      CREDIT LYONNAIS, NEW YORK
 CORPORATION                                BRANCH

By___________________________               By__________________________
  Name:                                       Name:
  Title:                                      Title:

IBJ WHITEHALL BUSINESS CREDIT               BANKBOSTON, N.A.
 CORPORATION

By__________________________                By__________________________
  Name:                                       Name:
  Title:                                      Title:

                                       8
<PAGE>

SUNTRUST BANK, MIAMI, N.A.                  BANKATLANTIC

By_________________________                 By_________________________
  Name:                                       Ana C. Bolduc
  Title:                                      Senior Vice President

THE INTERNATIONAL BANK OF                   NATIONAL BANK OF CANADA
 MIAMI, N.A.                                A Canadian Chartered Bank

By_________________________                 By_________________________
  Caridad C. Errazquin                        Frank H. D'Alto
  Vice President                              Vice President
  Trade Finance Division

                                            By_________________________
                                              Michael S. Bloomenfeld
                                              Vice President & Manager

MERCANTILE BUSINESS CREDIT, INC.            CITIZENS BUSINESS CREDIT
                                            COMPANY

By_________________________                 By_________________________
  Steven C. Gonzalez                          John Atanasoff
  Assistant Vice President                    Vice President

AMSOUTH BANK                                PNC BANK NATIONAL ASSOCIATION

By__________________________                By_________________________
  Name:                                       Name:
  Title:                                      Title:

                                       9

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00004-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00004-of-00352.parquet"}]]