Exhibit 10.1

Execution Version
FIRST AMENDMENT TO
REVOLVING CREDIT AGREEMENT

THIS FIRST AMENDMENT TO REVOLVING CREDIT AGREEMENT (this “Amendment”), is made
and entered into as of December 11, 2012, by and among HEICO CORPORATION, a
Florida corporation (the “Borrower”), the several banks and other financial
institutions from time to time party hereto (collectively, the “Lenders”) and
SUNTRUST BANK, in its capacity as Administrative Agent for the Lenders (the
“Administrative Agent”), as issuing bank (the “Issuing Bank”) and as swingline
lender (the “Swingline Lender”).

W I T N E S S E T H:

WHEREAS, the Borrower, the Lenders and the Administrative Agent are parties to a
certain Revolving Credit Agreement, dated as of December 14, 2011 (as amended,
restated, supplemented or otherwise modified from time to time, the “Credit
Agreement”; capitalized terms used herein and not otherwise defined shall have
the meanings assigned to such terms in the Credit Agreement), pursuant to which
the Lenders have made certain financial accommodations available to the
Borrower;
WHEREAS, the Borrower has requested that the Lenders and the Administrative
Agent amend certain provisions of the Credit Agreement, and subject to the terms
and conditions hereof, the Lenders are willing to do so;
NOW, THEREFORE, for good and valuable consideration, the sufficiency and receipt
of all of which are acknowledged, the Borrower, the Lenders and the
Administrative Agent agree as follows:

1.Amendments.
(a) Section 1.1 of the Credit Agreement is amended by replacing the definition
of “Revolving Commitment Termination Date” in its entirety with the following
definition:
“Revolving Commitment Termination Date” shall mean the earliest of (i) December
14, 2017, as such date may be extended pursuant to the terms of Section 2.25,
(ii) the date on which the Revolving Commitments are terminated pursuant to
Section 2.7 and (iii) the date on which all amounts outstanding under this
Agreement have been declared or have automatically become due and payable
(whether by acceleration or otherwise).

(b)    Section 2.25 of the Credit Agreement is hereby amended by replacing the
first sentence of subsection (b) of such Section in its entirety with the
following:

If all of the Lenders consent in writing to any such request in accordance with
subsection (a) of this Section 2.25, the Revolving Commitment Termination Date
shall, effective as at such next Anniversary Date (or such other date as the
Lenders shall agree in such writing) (the “Extension Date”), be extended for one
calendar year from the then scheduled Revolving

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Commitment Termination Date; provided that on each Extension Date, no Default or
Event of Default shall have occurred and be continuing, or shall occur as a
consequence thereof.    

2.Conditions to Effectiveness of this Amendment. Notwithstanding any other
provision of this Amendment and without affecting in any manner the rights of
the Lenders hereunder, it is understood and agreed that this Amendment shall not
become effective, and the Borrower shall have no rights under this Amendment,
until the Administrative Agent shall have received (i) an amendment fee in the
amount of 0.05% of the Revolving Commitments of those Lenders executing this
Amendment, to be applied pro rata among such Lenders, (ii) such other fees as
the Borrower has previously agreed to pay the Administrative Agent or any of its
affiliates in connection with this Amendment, (iii) reimbursement or payment of
the costs and expenses of the Administrative Agent incurred in connection with
this Amendment or the Credit Agreement (including reasonable fees, charges and
disbursements of King & Spalding LLP, counsel to the Administrative Agent), and
(iv) each of the following documents:

(a)     executed counterparts to this Amendment from the Borrower, each of the
Guarantors and Lenders constituting at least the Required Lenders; and

(b)    a certificate of the Secretary or Assistant Secretary of the Borrower,
attaching and certifying copies of resolutions of its board of directors,
authorizing the execution, delivery and performance of the Amendment, certifying
the name, title and true signature of each officer of the Borrower executing the
Amendment and confirming that the articles of incorporation and bylaws have not
changed since the Closing Date.

3.Representations and Warranties. To induce the Lenders and the Administrative
Agent to enter into this Amendment, each Loan Party hereby represents and
warrants to the Lenders and the Administrative Agent:

(a)    The Borrower and each of its Subsidiaries (i) is duly organized, validly
existing and in good standing as a corporation, partnership or limited liability
company under the laws of the jurisdiction of its organization, (ii) has all
requisite power and authority to carry on its business as now conducted except
where a failure to be so qualified could not reasonably be expected to result in
a Material Adverse Effect, (iii) has all licenses and permits necessary to carry
on and conduct its business in all states and localities wherein it now operates
and (iv) is duly qualified to do business, and is in good standing, in each
jurisdiction where such qualification is required, except where a failure to be
so qualified could not reasonably be expected to result in a Material Adverse
Effect;

(b) The execution, delivery and performance by each Loan Party of the Loan
Documents to which it is a party are within such Loan Party’s organizational
powers and have been duly authorized by all necessary organizational, and if
required, shareholder, partner or member, action;

(c)    The execution, delivery and performance by the Borrower of this
Agreement, and by each Loan Party of the other Loan Documents to which it is a
party (i) do not require any consent or approval of, registration or filing
with, or any action by, any Governmental Authority, except those as have been
obtained or made and are in full force and effect, (ii) will not violate any
Requirements of Law applicable to the Borrower or any of its Subsidiaries or any
judgment, order or ruling of any Governmental Authority, (iii) will not violate
or result in a default under any indenture, agreement or other instrument
binding on the Borrower or any of its Subsidiaries or any of its assets or give
rise to a right thereunder to require any payment to be made by the Borrower or
any of its Subsidiaries and (iv) will not result in the creation or imposition

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of any Lien on any asset of the Borrower or any of its Subsidiaries, except
Liens (if any) created under the Loan Documents;

(d)    This Amendment has been duly executed and delivered for the benefit of or
on behalf of each Loan Party and constitutes a valid and binding obligation of
each Loan Party, enforceable against such Loan Party in accordance with its
terms except as the enforceability hereof may be limited by applicable
bankruptcy, insolvency, reorganization, moratorium or similar laws affecting the
enforcement of creditors’ rights generally and by general principles of equity;
and

(e)    Immediately after giving effect to this Amendment, all representations
and warranties of each Loan Party set forth in the Loan Documents are true and
correct in all material respects. No Default or Event of Default has occurred
and is continuing as of the date hereof or would occur as after giving effect to
this Amendment. Since the date of the financial statements of the Borrower
described in Section 4.4 of the Credit Agreement, there shall have been no
change which has had or could reasonably be expected to have a Material Adverse
Effect.

4.Reaffirmations.

(a)    Reaffirmation of Subsidiary Guaranty Agreement. Each Subsidiary Loan
Party consents to the execution and delivery by the Borrower of this Amendment
and jointly and severally ratify and confirm the terms of the Subsidiary
Guaranty Agreement with respect to the indebtedness now or hereafter outstanding
under the Credit Agreement as amended hereby and all promissory notes issued
thereunder. Each Subsidiary Loan Party acknowledges that, notwithstanding
anything to the contrary contained herein or in any other document evidencing
any indebtedness of the Borrower to the Lenders or any other obligation of the
Borrower, or any actions now or hereafter taken by the Lenders with respect to
any obligation of the Borrower, the Subsidiary Guaranty Agreement (i) is and
shall continue to be a primary obligation of the Subsidiary Loan Parties, (ii)
is and shall continue to be an absolute, unconditional, joint and several,
continuing and irrevocable guaranty of payment, and (iii) is and shall continue
to be in full force and effect in accordance with its terms. Nothing contained
herein to the contrary shall release, discharge, modify, change or affect the
original liability of the Subsidiary Loan Parties under the Subsidiary Guaranty
Agreement.

5.Effect of Amendment. Except as set forth expressly herein, all terms of the
Credit Agreement, as amended hereby, and the other Loan Documents shall be and
remain in full force and effect and shall constitute the legal, valid, binding
and enforceable obligations of the Borrower to the Lenders and the
Administrative Agent. The execution, delivery and effectiveness of this
Amendment shall not, except as expressly provided herein, operate as a waiver of
any right, power or remedy of the Lenders under the Credit Agreement, nor
constitute a waiver of any provision of the Credit Agreement. This Amendment
shall constitute a Loan Document for all purposes of the Credit Agreement.

6.Governing Law. This Amendment shall be governed by, and construed in
accordance with, the internal laws of the State of Florida and all applicable
federal laws of the United States of America.

7.No Novation. This Amendment is not intended by the parties to be, and shall
not be construed to be, a novation of the Credit Agreement or an accord and
satisfaction in regard thereto.

8.Costs and Expenses. The Borrower agrees to pay on demand all reasonable,
documented, out-of-pocket expenses of the Administrative Agent in connection
with the preparation, execution and delivery of this Amendment, including,
without limitation, the reasonable fees and out-of-pocket expenses of outside
counsel for the Administrative Agent with respect thereto.

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9.Counterparts. This Amendment may be executed by one or more of the parties
hereto in any number of separate counterparts, each of which shall be deemed an
original and all of which, taken together, shall be deemed to constitute one and
the same instrument. Delivery of an executed counterpart of this Amendment by
facsimile transmission or by electronic mail in pdf form shall be as effective
as delivery of a manually executed counterpart hereof.

10.Binding Nature. This Amendment shall be binding upon and inure to the benefit
of the parties hereto, their respective successors, successors-in-titles, and
assigns.

11.Entire Understanding. This Amendment sets forth the entire understanding of
the parties with respect to the matters set forth herein, and shall supersede
any prior negotiations or agreements, whether written or oral, with respect
thereto.

[Signature Pages To Follow]

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IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be duly
executed, under seal in the case of the Borrower and the Subsidiary Loan
Parties, by their respective authorized officers as of the day and year first
above written.

BORROWER:

HEICO CORPORATION

By:
/s/ CARLOS L. MACAU, JR.    

Name:
Carlos L. Macau, Jr.

Title:
Chief Financial Officer and Treasurer

SUBSIDIARY LOAN PARTIES:

16-1741 PROPERTY, INC.
3D ACQUISITION CORP.
3D PLUS U.S.A., INC.
ACTION RESEARCH CORPORATION
AD HEICO ACQUISITION CORP.
AERODESIGN, INC.
AIRCRAFT TECHNOLOGY, INC.
ANALOG MODULES, INC.
ARGER ENTERPRISES, INC.
ATK ACQUISITION CORP.
AVIATION ENGINEERED SERVICES CORP.
AVIATION FACILITIES, INC.
BATTERY SHOP, L.L.C.
BLUE AEROSPACE LLC
CONNECTRONICS CORP.
CONXALL CORPORATION
CSI AEROSPACE, INC.
DB CONTROL, CORP.
DEC TECHNOLOGIES, INC.
DE-ICING INVESTMENT HOLDINGS     CORP.
DIELECTRIC SCIENCES, INC.
DUKANE SEACOM, INC.
DYNATECH ACQUISITION, CORP.
EMD ACQUISITION CORP.
ENGINEERING DESIGN TEAM, INC.
FERRISHIELD, INC.
FUTURE AVIATION, INC.
HEICO AEROSPACE CORPORATION
HEICO AEROSPACE PARTS CORP.
HEICO EAST CORPORATION
HEICO ELECTRONIC TECHNOLOGIES CORP.

[SIGNATURE PAGE TO FIRST AMENDMENT TO REVOLVING CREDIT AGREEMENT]

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HEICO FLIGHT SUPPORT CORP.
HEICO PARTS GROUP, INC.
HNW BUILDING CORP.
HNW 2 BUILDING CORP.
HVT GROUP, INC.
INERTIAL AIRLINE SERVICES, INC.
IRCAMERAS LLC
JA ENGINEERING I CORP.
JA ENGINEERING II CORP.
JET AVION CORPORATION
JETSEAL, INC.
LEADER TECH, INC.
LPI INDUSTRIES CORPORATION
LUMINA POWER, INC.
MCCLAIN INTERNATIONAL, INC.
MCCLAIN PROPERTY CORP.
MEREDIAN INDUSTRIAL, INC.
NIACC-AVITECH TECHNOLOGIES, INC.
NORTHWINGS ACCESSORIES CORP.
PRIME AIR, LLC
RADIANT POWER CORP.
RAMONA RESEARCH, INC.
ROGERS-DIERKS, INC.
SANTA BARBARA INFRARED, INC.
SEAL DYNAMICS LLC
SIERRA MICROWAVE TECHNOLOGY, LLC
SUNSHINE AVIONICS, LLC
SWITCHCRAFT HOLDCO, INC.
SWITCHCRAFT, INC.
THERMAL STRUCTURES, INC.
TURBINE KINETICS, INC.

                            
By:
/s/ CARLOS L. MACAU, JR.

Name:
Carlos L. Macau, Jr.

Title:
Chief Financial Officer and Treasurer

                            
HEICO AEROSPACE HOLDINGS CORP.

By:
/s/ THOMAS S. IRWIN

Name:
Thomas S. Irwin

Title:
Treasurer

[SIGNATURE PAGE TO FIRST AMENDMENT TO REVOLVING CREDIT AGREEMENT]

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LENDERS:

SUNTRUST BANK, as a Lender

    
By:
/s/ DONALD J. CAPISANO

Name:
Donald J. Capisano

Title:
Senior Vice President

[SIGNATURE PAGE TO FIRST AMENDMENT TO REVOLVING CREDIT AGREEMENT]

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WELLS FARGO BANK, NATIONAL
ASSOCIATION, as a Lender

By:
/s/ ALINA CANNON

Name:
Alina Cannon

Title:
Senior Vice President

[SIGNATURE PAGE TO FIRST AMENDMENT TO REVOLVING CREDIT AGREEMENT]

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

By:
/s/ DAVID GUTIERREZ

Name:
David Gutierrez

Title:
Senior Vice President

[SIGNATURE PAGE TO FIRST AMENDMENT TO REVOLVING CREDIT AGREEMENT]

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PNC BANK, NATIONAL ASSOCIATION,
as a Lender

By:
/s/ JOSE MAZARIEGOS

Name:
Jose Mazariegos

Title:
Senior Vice President

[SIGNATURE PAGE TO FIRST AMENDMENT TO REVOLVING CREDIT AGREEMENT]

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BRANCH BANKING AND TRUST
COMPANY, as a Lender

By:
/s/ JAMES E. DAVIS

Name:
James E. Davis

Title:
Senior Vice President

[SIGNATURE PAGE TO FIRST AMENDMENT TO REVOLVING CREDIT AGREEMENT]

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US BANK, NATIONAL ASSOCIATION,
as a Lender

By:
/s/ MICHAEL P. DICKMAN

Name:
Michael P. Dickman

Title:
Vice President

[SIGNATURE PAGE TO FIRST AMENDMENT TO REVOLVING CREDIT AGREEMENT]

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RBS CITIZENS, N.A., as a Lender

By:
/s/ JASON UPHAM

Name:
Jason Upham

Title:
Assistant Vice President

[SIGNATURE PAGE TO FIRST AMENDMENT TO REVOLVING CREDIT AGREEMENT]

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SYNOVUS BANK, as a Lender

By:
/s/ MICHAEL SAWICKI

Name:
Michael Sawicki

Title:
Corporate Banking

[SIGNATURE PAGE TO FIRST AMENDMENT TO REVOLVING CREDIT AGREEMENT]

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THE NORTHERN TRUST COMPANY, as
a Lender

By:
/s/ PATRICK COWAN

Name:
Patrick Cowan

Title:
Vice President

[SIGNATURE PAGE TO FIRST AMENDMENT TO REVOLVING CREDIT AGREEMENT]

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JPMORGAN CHASE BANK, N.A., as a
Lender

By:
/s/ ANTJE B. FOCKE

Name:
Antje B. Focke

Title:
Senior Underwriter

[SIGNATURE PAGE TO FIRST AMENDMENT TO REVOLVING CREDIT AGREEMENT]

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SABADELL UNITED BANK, N.A., as a
Lender

By:
/s/ MAURICI LLADO

Name:
Maurici Lladó

Title:
Executive Vice President Corporate & Commercial Banking

[SIGNATURE PAGE TO FIRST AMENDMENT TO REVOLVING CREDIT AGREEMENT]

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FIFTH THIRD BANK, AN OHIO
BANKING CORPORATION, as a Lender

By:
/s/ JOHN A. MARIAN

Name:
John Marian

Title:
Vice President

[SIGNATURE PAGE TO FIRST AMENDMENT TO REVOLVING CREDIT AGREEMENT]

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MERCANTIL COMMERCEBANK, N.A.,
as a Lender

By:
/s/ ALAN HILLS

Name:
Alan Hills

Title:
Senior Vice President

[SIGNATURE PAGE TO FIRST AMENDMENT TO REVOLVING CREDIT AGREEMENT]

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FLORIDA COMMUNITY BANK N.A., as
a Lender

    
By:
/s/ JOSE M. CRUZ

Name:
Jose M. Cruz

Title:
Senior Vice President

[SIGNATURE PAGE TO FIRST AMENDMENT TO REVOLVING CREDIT AGREEMENT]