Document:

EXHIBIT 10.10

                       FOURTH LOAN MODIFICATION AGREEMENT

         This Fourth Loan Modification Agreement (the "Agreement") is made and
entered into this 24th day of August, 1999, effective as of March 1, 1999 (the
"Effective Date"), by and among EAGLE NATIONAL BANK OF MIAMI, A National Banking
Association with its principal place of business at 701 Brickell Avenue, Suite
1250, Miami, Florida 33131 (the "Lender"), and HEICO CORPORATION, HEICO
AEROSPACE CORPORATION, JET AVION CORPORATION, JET AVION HEAT TREAT CORPORATION,
LPI INDUSTRIES CORPORATION, and AIRCRAFT TECHNOLOGY, INC., (collectively the
"Original Borrowers"), TRILECTRON INDUSTRIES, INC., a New York Corporation,
HEICO AVIATION PRODUCTS CORP. and NORTHWINGS ACCESSORIES CORP., each a Florida
Corporation (unless otherwise noted) (the "Additional Borrowers"); the Original
Borrowers and the Additional Borrowers are hereinafter collectively referred to
as the "Borrowers" and individually a "Borrower".

                                   WITNESSETH

         WHEREAS, on or about March 31, 1994 Lender and Original Borrowers
entered into that certain Loan Agreement (the "Loan Agreement") pursuant to
which Lender provided Borrowers a credit facility in the aggregate principal
amount of One Million, Six Hundred Thousand Dollars ($1,600,000.00) (the "Credit
Facility") for the purpose of making term loans to Borrowers for purchasing or
refinancing equipment to be used in Borrowers' business operations; and

         WHEREAS, Original Borrowers requested and Lender agreed to a
modification of the terms and conditions of the Loan Agreement, in accordance
with the terms and conditions of that certain Loan Modification Agreement dated
August 9, 1995 (the "First Modification"); and

         WHEREAS, Borrowers requested and Lender agreed to a modification of the
terms and conditions of the Loan Agreement and First Modification Agreement, in
accordance with the terms and conditions of that certain Second Loan
Modification Agreement dated February 27, 1997 (the "Second Modification"); and

         WHEREAS, Borrowers requested and Lender agreed to a modification of the
terms and conditions of the Loan Agreement, First Modification and Second
Modification Agreement, in accordance with the terms and conditions of that
certain Third Loan Modification Agreement dated February 6, 1998 (the "Third
Modification"); and

         WHEREAS, Borrowers have requested and Lender has agreed to a
modification of the terms and conditions of the Loan Agreement, the First
Modification Agreement, the Second Modification Agreement and the Third Loan
Modification Agreement in accordance with the terms and conditions of this
Agreement (this Fourth Agreement, the Loan Agreement, the First Modification
Agreement, the Second Modification Agreement and the Third Modification shall
hereafter be referred to as the "Modified Agreement");

<PAGE>

         NOW THEREFORE, in consideration of the premises, the mutual covenants
set forth below and the sum of $10.00, and other good and valuable consideration
the receipt and sufficiency of which are hereby acknowledged, Borrowers and
Lender agree as follows:

                                      TERMS

         1. AFFIRMATION OF LOAN AGREEMENT. Except as modified hereby, all of the
terms and conditions of the Loan Agreement, the First Modification Agreement,
the Second Modification Agreement and the Third Modification Agreement, as well
as all other documents and instruments executed and delivered by Borrowers to
Lender in connection therewith, are hereby ratified, affirmed and approved in
all respects and shall remain in full force and effect.

         2. DEFINITIONS. Unless otherwise defined all capitalized terms in this
Agreement shall have the same meaning as in the Loan Agreement.

         3. THE CREDIT FACILITY. Lender agrees, pursuant to the terms of this
Agreement, to extend the period of time the Credit Facility to September 1, 2000
(the "Termination Date"). The terms for each Equipment Loan shall remain as set
forth in the Loan Agreement, except to the extent modified by this Agreement.

         4. CREDIT FACILITY FEE. Paragraph 1.12 of the Loan Agreement is hereby
modified to read as follows: Borrowers agree to pay Lender a facility fee equal
to 50 basis point on the amount of each individual loan request at the time of
disbursement.

         5. CLOSING COSTS. Borrowers acknowledge to Lender that all costs
associated with the closing of each individual transaction including but not
limited to Documentary Stamp Taxes in each individual Note, Filing Fees and
Documentation/Processing Fees, will be borne by the Borrower.

         6. COMMITMENT. Paragraph 1.1 of the Loan Agreement is hereby modified
to read as follows:

"1.1 The proceeds of each Equipment Loan shall be used exclusively for the
purpose of purchasing equipment to be used in the applicable Borrower's business
or to refinance existing equipment purchased not earlier than December 1st, 1997
and used in the applicable Borrower's business."

         7. CONFLICT. The provisions of this Agreement shall control in the
event of any conflict between it and any of the Loan Documents, except that the
provisions of the Notes and security agreements (given pursuant to paragraph 2.3
of the Loan Agreement, the "Security Agreements) shall control in the event of
any conflict between the Notes or the Security Agreements and this Agreement.

         8. TIME. Time is of the essence with respect to all matters set forth
herein.

         9. WAIVER MODIFICATION OR CANCELLATION. Any waiver, alteration or
modification of any of the provisions of this Agreement shall not be valid
unless in writing and signed by the parties hereto.

                                       2
<PAGE>

         10. WAIVER OF CLAIMS OR DEFENSES. Borrowers hereby covenant that they
have no claims or defenses against Lender that could give rise to any defense,
off-set or counterclaim in connection with the enforcement of the Loan
Agreement, as modified hereby or any Equipment Loans.

         11. WAIVER OF JURY TRIAL ALL PARTIES TO THIS AGREEMENT HEREBY
KNOWINGLY, VOLUNTARILY AND INTENTIONALLY WAIVE THEIR RESPECTIVE RIGHTS TO A
TRIAL BY JURY IN ANY LAWSUIT, PROCEEDING, OR COUNTERCLAIM BASED UPON, OR ARISING
OUT OF THIS AGREEMENT, THE EQUIPMENT LOANS, THE LOAN DOCUMENTS AND ANY AGREEMENT
EXECUTED IN CONJUNCTION HEREWITH OR THEREWITH, OR ANY COURSE OF CONDUCT, COURSE
OF DEALING, STATEMENTS (WHETHER VERBAL OR WRITTEN), OR ACTIONS OR OMISSIONS OF
EITHER PARTY. THIS PROVISION FOR WAIVER OF A JURY TRIAL IS A MATERIAL INDUCEMENT
FOR LENDER TO ENTER INTO THIS AGREEMENT AND TO MAKE THE EQUIPMENT LOANS.

      12. FURTHER ASSURANCE. At all times following the date of this Agreement,
Borrowers agree to execute and deliver, or to cause to be executed and
delivered, such documents and to do, or cause to be done, such other acts and
things as might be reasonably requested by Lender to effectuate the terms and
provisions of this Agreement and the transactions contemplated herein to assure
that the benefits of this Agreement are realized by the parties hereto.

         IN WITNESS WHEREOF, Borrowers (Parent and Subsidiaries) and Lender have
hereunto caused these presents to be executed on this date first above written.

WITNESS:                                LENDER:

                                        EAGLE NATIONAL BANK OF MIAMI,
-----------------------------           a National Banking Association

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

STATE OF FLORIDA
COUNTY OF MIAMI DADE

The foregoing instrument was acknowledged before me this 18th day of August,
1999 by Antoinette Infante as Assistant Vice President of Eagle National Bank of
Miami, who is personally known to me or who has produced a Florida Driver
License as identification.

                                        ----------------------------------------
                                        NOTARY PUBLIC
                                        Print Name:
                                                   -----------------------------
                                        My Commission Expires:
                                                              ------------------

                                       3
<PAGE>

                                        BORROWERS:

WITNESSES:                              PARENT:

-----------------------------           HEICO CORPORATION, a Florida Corporation

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

STATE OF FLORIDA
COUNTY OF MIAMI DADE

The foregoing instrument was acknowledged before me this 24th day of August,
1999 by Thomas S. Irwin as Treasurer of HEICO CORPORATION, a Florida
Corporation, who is personally known to me or who has produced a Florida Driver
License as identification.

                                        ----------------------------------------
                                        NOTARY PUBLIC
                                        Print Name:
                                                   -----------------------------
                                        My Commission Expires:
                                                              ------------------

                                        SUBSIDIARIES:

WITNESSES:

-----------------------------           JET AVION CORPORATION, a Florida
                                        Corporation
-----------------------------
                                        By:
                                           -------------------------------------
                                        Print Name:
                                                   -----------------------------
                                        Title:
                                              ----------------------------------

STATE OF FLORIDA
COUNTY OF MIAMI DADE

The foregoing instrument was acknowledged before me this 24th day of August,
1999 by Thomas S. Irwin as Treasurer of JET AVION CORPORATION, a Florida
Corporation, who is personally known to me or who has produced a Florida Driver
License as identification.

                                        ----------------------------------------
                                        NOTARY PUBLIC
                                        Print Name:
                                                   -----------------------------
                                        My Commission Expires:
                                                              ------------------

                                       4
<PAGE>

WITNESSES:                              HEICO AEROSPACE CORPORATION, a
                                        Florida Corporation
-----------------------------

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

STATE OF FLORIDA
COUNTY OF MIAMI DADE

The foregoing instrument was acknowledged before me this 24th day of August,
1999 by Thomas S. Irwin as Treasurer of HEICO AEROSPACE CORPORATION, a Florida
Corporation, who is personally known to me or who has produced a Florida Driver
License as identification.

                                        ----------------------------------------
                                        NOTARY PUBLIC
                                        Print Name:
                                                   -----------------------------
                                        My Commission Expires:
                                                              ------------------

WITNESSES:                              JET AVION HEAT TREAT CORPORATION, a
                                        Florida Corporation
-----------------------------

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

STATE OF FLORIDA
COUNTY OF MIAMI DADE

The foregoing instrument was acknowledged before me this 24th day of August,
1999 by Thomas S. Irwin as Treasurer of JET AVION HEAT TREAT CORPORATION, a
Florida Corporation, who is personally known to me or who has produced a Florida
Driver License as identification.

                                        ----------------------------------------
                                        NOTARY PUBLIC
                                        Print Name:
                                                   -----------------------------
                                        My Commission Expires:
                                                              ------------------

                                       5
<PAGE>

WITNESSES:                              LPI INDUSTRIES CORPORATION, a
                                        Florida Corporation
-----------------------------

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

STATE OF FLORIDA
COUNTY OF MIAMI DADE

The foregoing instrument was acknowledged before me this 24th day of August,
1999 by Thomas S. Irwin as Treasurer of LPI INDUSTRIES CORPORATION, a Florida
Corporation, who is personally known to me or who has produced a Florida Driver
License as identification.

                                        ----------------------------------------
                                        NOTARY PUBLIC
                                        Print Name:
                                                   -----------------------------
                                        My Commission Expires:
                                                              ------------------

WITNESSES:                              AIRCRAFT TECHNOLOGY INC., a
                                        Florida Corporation
-----------------------------

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

STATE OF FLORIDA
COUNTY OF MIAMI DADE

The foregoing instrument was acknowledged before me this 24th day of August,
1999 by Thomas S. Irwin as Treasurer of AIRCRAFT TECHNOLOGY INC. a Florida
Corporation, who is personally known to me or who has produced a Florida Driver
License as identification.

                                        ----------------------------------------
                                        NOTARY PUBLIC
                                        Print Name:
                                                   -----------------------------
                                        My Commission Expires:
                                                              ------------------

                                       6
<PAGE>

WITNESSES:                              TRILECTRON INDUSTRIES INC., a
                                        New York Corporation
-----------------------------

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

STATE OF FLORIDA
COUNTY OF MIAMI DADE

The foregoing instrument was acknowledged before me this 24th day of August,
1999 by Thomas S. Irwin as Treasurer of TRILECTRON INDUSTRIES, INC., a New York
Corporation, who is personally known to me or who has produced a Florida Driver
License as identification.

                                        ----------------------------------------
                                        NOTARY PUBLIC
                                        Print Name:
                                                   -----------------------------
                                        My Commission Expires:
                                                              ------------------

WITNESSES:                              HEICO AVIATION PRODUCTS
                                        CORPORATION, a Florida Corporation
-----------------------------

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

STATE OF FLORIDA
COUNTY OF MIAMI DADE

The foregoing instrument was acknowledged before me this 24th day of August,
1999 by Thomas S. Irwin as Treasurer of HEICO AVIATION PRODUCTS CORPORATION, a
Florida Corporation, who is personally known to me or who has produced a Florida
Driver License as identification.

                                        ----------------------------------------
                                        NOTARY PUBLIC
                                        Print Name:
                                                   -----------------------------
                                        My Commission Expires:
                                                              ------------------

                                       7
<PAGE>

WITNESSES:                              NORTHWINGS ACCESSORIES
                                        CORPORATION, a Florida Corporation
-----------------------------

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

STATE OF FLORIDA
COUNTY OF MIAMI DADE

The foregoing instrument was acknowledged before me this 24th day of August,
1999 by Thomas S. Irwin as Treasurer of NORTHWINGS ACCESSORIES CORPORATION, a
Florida Corporation, who is personally known to me or who has produced a Florida
Driver License as identification.

                                        ----------------------------------------
                                        NOTARY PUBLIC
                                        Print Name:
                                                   -----------------------------
                                        My Commission Expires:
                                                              ------------------

                                        8EXHIBIT 10.31

                       AMENDMENT NO. 1 TO CREDIT AGREEMENT

         This AMENDMENT NO. 1 TO CREDIT AGREEMENT (the "Amendment") is made and
entered as of the 30th day of July, 1998, by and among HEICO CORPORATION, a
Florida corporation (together with its successors and permitted assigns,
"Borrower"), the lenders which are or may in the future be listed on the
signature pages to the Credit Agreement (as hereinafter defined) and hereto
(together with their successors and permitted assigns, individually a "Lender"
and collectively, the "Lenders"), and SUNTRUST BANK, SOUTH FLORIDA, NATIONAL
ASSOCIATION, as agent for the Lenders (together with any successor agent
appointed pursuant to the provisions herein, the "Agent").

                                   BACKGROUND

         The Borrower, the Lenders and the Agent are parties to a Credit
Agreement dated as of July 30, 1998 (the "Credit Agreement") and all of the
parties now desire to amend the Credit Agreement as provided herein.

         NOW, THEREFORE, in consideration of the premises and the mutual
agreements, covenants, and conditions herein, Borrower, the Lenders, and Agent
agree as follows:

         1. SECTION 1.1 (DEFINED TERMS) of the Credit Agreement shall be amended
by adding thereto the following definition:

            "DOCUMENTATION AGENT" shall mean First Union National Bank.

         2. SECTION 1.1 (DEFINED TERMS) of the Credit Agreement shall be amended
in the paragraph thereof defining "Guarantors" by deleting the word "and" before
the words "PTM Acquisition Corporation, a Florida corporation", and by adding
immediately after such words and immediately before the words "as to all of the
Obligations (as herein defined)", the words: "and McClain International, Inc., a
Georgia corporation".

         3. SECTION 2.7 (REVOLVING CREDIT TERMINATION DATE) of the Credit
Agreement shall be amended to read in its entirety as follows:

                           (a) REVOLVING CREDIT TERMINATION DATE; REQUEST FOR
                  EXTENSION. "All Borrowings outstanding under the Revolving
                  Credit Facility shall be due and payable in full on the
                  Revolving Credit Termination Date. The Borrower shall not
                  request and the Lenders will not be required to make or
                  consider requests for Revolving Credit Advances after the
                  Revolving Credit Termination Date. The Borrower may, by
                  written notice to the Agent (which shall promptly deliver a
                  copy to each of the Lenders), given not more than one hundred
                  twenty (120) days nor less than ninety (90) days prior to the
                  first anniversary date

<PAGE>

                  of the Closing Date, and again not more than one hundred
                  twenty (120) days nor less than ninety (90) days prior to the
                  second anniversary date of the Closing Date, request that the
                  Lenders extend the then scheduled Revolving Credit Termination
                  Date. Upon delivery of such notice by the Borrower, the
                  Lenders shall determine, in their sole and absolute
                  discretion, by decision of not less than all of the Lenders
                  (except as provided in paragraphs (b) and (c) of this Section
                  2.7), whether to extend the Revolving Credit Termination Date
                  for one (1) additional year on the same terms and conditions
                  as set forth in this Agreement, and Agent shall give written
                  notice to Borrower on or before the anniversary date of the
                  Closing Date prior to which such notice from the Borrower was
                  delivered, as to whether the Lenders have elected so to extend
                  the Revolving Credit Termination Date for one (1) additional
                  year.

                           (b) OPTIONS TO EXTEND REVOLVING CREDIT TERMINATION
                  DATE BY REPLACING NON-RENEWING LENDERS. In the event that
                  after delivery of a renewal notice by Borrower as provided in
                  paragraph (a) of this Section 2.7, one or more Lenders decide
                  not to extend the Revolving Credit Termination Date on the
                  first anniversary date of the Closing Date or on the second
                  anniversary date of the Closing Date, as the case may be, for
                  an additional one (1) year period, the Agent shall first offer
                  the Lenders who agree to extend the Revolving Credit
                  Termination Date the right to replace the non-renewing
                  Lender(s). Any such existing Lender(s) who agree to replace
                  the non-renewing Lender(s) shall assume all of the rights and
                  obligations of the non-renewing Lender(s) hereunder as of the
                  first or second anniversary date of the Closing Date, as the
                  case may be, pursuant to Section 13.17 of this Agreement and
                  one or more Assignment and Assumption Agreements as provided
                  therein. In its renewal notice delivered to Agent pursuant to
                  paragraph (a) of this Section 2.7, Borrower will have the
                  right to designate proposed new lender(s) to replace any
                  non-renewing Lender(s), and if the extension is not
                  accomplished in the manner set forth in the preceding
                  sentence, then if such designated new lender(s) are acceptable
                  to the Agent and agree(s) to become a party to this Agreement
                  as Lender(s) hereunder, then as of the first or second
                  anniversary date of the Closing Date, as the case may be, the
                  non-renewing Lender(s) shall assign all of its or their rights
                  and obligations under this Agreement to such designated new
                  lender(s), who shall assume all of such rights and
                  obligations, pursuant to Section 13.17 of this Agreement and
                  one or more Assignment and Assumption Agreements as provided
                  therein. Such new lender(s) shall thereby replace the
                  non-renewing Lender(s) as Lender(s) under and party to this

                                       2
<PAGE>

                  Agreement and shall have all the rights and obligations of
                  such non-renewing assigning Lender(s) under the Loan Documents
                  to the same extent as if such new Lender(s) were original
                  parties thereto.

                           (c) OPTION TO PRE-PAY NON-RENEWING LENDERS AND EXTEND
                  REVOLVING CREDIT TERMINATION DATE AS TO REDUCED REVOLVING
                  CREDIT COMMITMENTS. In the event that after delivery of a
                  renewal notice by Borrower as provided in paragraph (a) of
                  this Section 2.7, the Required Lenders decide to extend, but
                  one or more Lenders decide not to extend, the Revolving Credit
                  Termination Date on the first anniversary date of the Closing
                  Date or on the second anniversary date of the Closing Date, as
                  the case may be, for an additional one (1) year period, and in
                  the event that pursuant to the provisions of Section 2.7(b)
                  all non-renewing Lenders are not replaced with existing
                  Lenders or new Lenders, the Borrower will have the right, if
                  so elected in writing in the renewal notice, to prepay, in
                  whole and not in part, and terminate the Revolving Credit
                  Commitments of the non-renewing Lenders who have not been so
                  replaced subject to the provisions of Section 2.10, except
                  that the provisions of Section 2.10(b)(i) shall not apply. The
                  Required Lenders who elected to extend may thereupon
                  unanimously extend the Revolving Credit Termination Date as to
                  the remaining aggregate Revolving Credit Commitments of such
                  Lenders for one (1) additional year.

                           (d) DOCUMENTATION FOR EXTENSIONS OF REVOLVING CREDIT
                  TERMINATION DATE. If all of the Lenders (including any such
                  new Lender(s) who become parties hereto pursuant to Section
                  2.7(b)), or the Required Lenders in the event of a pre-payment
                  and termination of the Revolving Credit Commitments of
                  non-renewing Lenders pursuant to Section 2.7(c), elect to make
                  any such extension of the Revolving Credit Termination Date,
                  assuming Borrower elects to accept such extension, Borrower,
                  at its expense, shall, and shall cause its Subsidiaries to,
                  execute such amendments to this Agreement and other documents
                  as shall be reasonably required by Agent on behalf of the
                  Lenders in connection with any such extension. Nothing
                  contained herein shall obligate the Lenders to make any such
                  extension of the Revolving Credit Termination Date."

         4. SECTION 2.10(B) (REDUCTION OF REVOLVING CREDIT COMMITMENTS) shall be
amended by deleting the "(c)" at the beginning of the first paragraph thereof,
and by adding at the beginning of subsection (i) thereof, the words: "Except as
provided in Section 2.7(c),".

                                       3
<PAGE>

         5. SECTION 9.10 (HEICO AEROSPACE HOLDINGS CORP.) of the Credit
Agreement shall be amended by adding at the end thereof, the following language:

                  "Notwithstanding this Section 9.10, upon obtaining the prior
                  written consent of the Agent in each case on a case by case
                  basis, which consent shall not be unreasonably withheld, the
                  Borrower or the direct Subsidiaries of HEICO Aerospace
                  Holdings Corp. (i) may on the closing date of any Permitted
                  Acquisition made by HEICO Aerospace Holdings Corp. fund
                  through HEICO Aerospace Holdings Corp. the cash portion of the
                  acquisition purchase price to be paid at the closing of such
                  Permitted Acquisition, provided that Borrower shall cause
                  HEICO Aerospace Holdings Corp. to pay such cash acquisition
                  price immediately upon receipt of any such funds, such that no
                  such cash shall remain in HEICO Aerospace Holdings Corp. for
                  longer than twenty-four (24) hours, and (ii) no more
                  frequently than quarterly, may fund any payment of taxes
                  required to be made directly by HEICO Aerospace Holdings
                  Corp., provided that Borrower shall cause HEICO Aerospace
                  Holdings Corp. to pay such taxes immediately upon receipt of
                  any such funds, such that no cash remains in HEICO Aerospace
                  Holdings Corp. for longer than one (1) hour."

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

                                       4
<PAGE>

                                 SIGNATURE PAGE

         Amendment No. 1 to Credit Agreement among HEICO Corporation, SunTrust
Bank, South Florida, National Association, as Agent, and the Lenders party
thereto.

Witness: HEICO CORPORATION,
                                  a Florida corporation

                                  By:
---------------------------          ---------------------------------
                                  Name: Thomas S. Irwin
                                  Title: Executive Vice President and
                                         Chief Financial Officer

                                                 (SEAL)

                                  Address:
                                          HEICO CORPORATION
                                          3000 Taft Street
                                          Hollywood, Florida 33021
                                          Attn: Thomas S. Irwin
                                                Executive Vice President and
                                                Chief Financial Officer
                                          Fax No. (954) 987-8228
                                          Confirming Tel. No. (954) 987-4000

                                       5
<PAGE>

                                 SIGNATURE PAGE

         Amendment No. 1 to Credit Agreement among HEICO Corporation, SunTrust
Bank, South Florida, National Association, as Agent, and the Lenders party
thereto.

Witness: SUNTRUST BANK, SOUTH FLORIDA,
                                 NATIONAL ASSOCIATION
                                 a National Banking Association,
                                 as Agent

                                 By:
---------------------------         ---------------------------------
                                 Name: Dorman Parrish
                                 Title: Vice President

                                 Address of Lending Office for Notice:
                                          501 East Las Olas Boulevard, 7th Floor
                                          Corporate Banking Division
                                          Fort Lauderdale, Florida 33301
                                          Attn: Dorman Parrish
                                                   Vice President
                                                   Corporate Banking Division
                                          Fax No.  (954) 765-7301
                                          Confirming Tel. No. (954) 765-7311

                                       6
<PAGE>

                                 SIGNATURE PAGE

         Amendment No. 1 to Credit Agreement among HEICO Corporation, SunTrust
Bank, South Florida, National Association, as Agent, and the Lenders party
thereto.

Witness: SUNTRUST BANK, SOUTH FLORIDA,
                                 NATIONAL ASSOCIATION,
                                 a National Banking Association,
                                 as Lender

                                 By:
---------------------------         ---------------------------------
                                 Name: Dorman Parrish
                                 Title: Vice President

                                 Address of Lending Office for Notice:
                                          501 East Las Olas Boulevard, 7th Floor
                                          Corporate Banking Division
                                          Fort Lauderdale, Florida 33301
                                          Attn:    Dorman Parrish
                                                   Vice President
                                                   Corporate Banking Division
                                          Fax No.  (954) 765-7301
                                          Confirming Tel. No. (954) 765-7311

Revolving Credit Commitment:  $120,000,000.00

                                       7

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00000-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00000-of-00352.parquet"}]]