Document:

Supplement No. 7, dated as of July 27, 2009

 Exhibit 10.2 
 Execution Version 
 SUPPLEMENT NO. 7 dated as of July 27, 2009, to the Guarantee and
Collateral Agreement dated as of June 23, 2006 (the “Guarantee and Collateral Agreement”), among TRANSDIGM INC., a Delaware corporation (the “Borrower”), TRANSDIGM GROUP INCORPORATED, a Delaware corporation
(“Holdings”), each subsidiary of the Borrower from time to time party thereto (each such subsidiary individually a “Subsidiary Guarantor” and collectively, the “Subsidiary Guarantors”; the
Subsidiary Guarantors, Holdings and the Borrower are referred to collectively herein as the “Grantors”) and CREDIT SUISSE as administrative agent and collateral agent (in such capacity, the “Agent”) for the Secured
Parties (as defined therein). 
 A. Reference is made to the Credit Agreement dated as of June 23, 2006 (as amended, supplemented or
otherwise modified from time to time, the “Credit Agreement”), among the Borrower, Holdings, each subsidiary of the Borrower from time to time party thereto, the lenders named therein (the “Lenders”), and Credit
Suisse, as administrative agent and collateral agent (in such capacity, the “Agent”) for the Lenders, as amended by (i) that certain Amendment No. 1, Consent and Agreement dated as of January 25, 2007 and
(ii) that certain Assumption Agreement dated as of February 7, 2007. 
 B. Capitalized terms used herein and not otherwise defined
herein shall have the meanings assigned to such terms in the Credit Agreement or the Guarantee and Collateral Agreement, as applicable. 
 C.
The Grantors have entered into the Guarantee and Collateral Agreement in order to induce the Lenders to make Loans and the Issuing Bank to issue Letters of Credit. Section 7.16 of the Guarantee and Collateral Agreement provides that additional
Domestic Subsidiaries of the Loan Parties may become Subsidiary Guarantors and Grantors under the Guarantee and Collateral Agreement by execution and delivery of an instrument in the form of this Supplement. The undersigned Subsidiary (a
“New Subsidiary”) is executing this Supplement in accordance with the requirements of the Credit Agreement to become a Subsidiary Guarantor and Grantor under the Guarantee and Collateral Agreement in order to induce the Lenders to
make additional Loans and the Issuing Bank to issue additional Letters of Credit and as consideration for Loans previously made and Letters of Credit previously issued. 
 Accordingly, the Agent and the New Subsidiary agree as follows: 
 SECTION 1. In accordance with
Section 7.16 of the Guarantee and Collateral Agreement, the New Subsidiary by its signature below becomes a Grantor and Subsidiary Guarantor under the Guarantee and Collateral Agreement with the same force and effect as if originally named
therein as a Grantor and Subsidiary Guarantor and the New Subsidiary hereby (a) agrees to all the terms and provisions of the Guarantee and Collateral Agreement applicable to it as a Grantor and Subsidiary Guarantor thereunder and
(b) represents and warrants that the representations and warranties made by it as a Grantor and Subsidiary Guarantor thereunder are true and correct in all material respects on and as of the date hereof. In furtherance of the foregoing, the New
Subsidiary, as security for the payment and performance in full of the Secured Obligations (as defined 

 
in the Guarantee and Collateral Agreement), does hereby create and grant to the Agent, its successors and assigns, for the benefit of the Secured Parties,
their successors and assigns, a security interest in and lien on all of the New Subsidiary’s right, title and interest in and to the Collateral (as defined in the Guarantee and Collateral Agreement) of the New Subsidiary. Each reference to a
“Grantor” or a “Subsidiary Guarantor” in the Guarantee and Collateral Agreement shall be deemed to include the New Subsidiary. The Guarantee and Collateral Agreement is hereby incorporated herein by reference.

 SECTION 2. The New Subsidiary represents and warrants to the Agent and the other Secured Parties that this Supplement has been duly
authorized, executed and delivered by it and constitutes its legal, valid and binding obligation, enforceable against it in accordance with its terms. 
 SECTION 3. This Supplement may be executed in counterparts (and by different parties hereto on different counterparts), each of which shall constitute an original, but all of which when taken together shall constitute
a single contract. This Supplement shall become effective when the Agent shall have received counterparts of this Supplement that, when taken together, bear the signatures of the New Subsidiary and the Agent. Delivery of an executed signature page
to this Supplement by facsimile transmission shall be as effective as delivery of a manually signed counterpart of this Supplement. 
 SECTION 4. The New Subsidiary hereby represents and warrants that (a) set forth on Schedule I attached hereto is a true and correct schedule of the location of any and all Collateral of the New Subsidiary and the New
Subsidiary’s organization number (or equivalent) from its jurisdiction of formation, (b) set forth on Schedule II attached hereto is a true and correct schedule of any and all (i) Equity Interests and debt securities now owned by the
New Subsidiary and (ii) Intellectual Property now owned by the New Subsidiary and (c) set forth under its signature hereto, is the true and correct legal name of the New Subsidiary, its jurisdiction of formation and the location of its
chief executive office. 
 SECTION 5. Except as expressly supplemented hereby, the Guarantee and Collateral Agreement shall remain in full
force and effect. 
 SECTION 6. THIS SUPPLEMENT SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF
NEW YORK. 
 SECTION 7. In case any one or more of the provisions contained in this Supplement should be held invalid, illegal or
unenforceable in any respect, the validity, legality and enforceability of the remaining provisions contained herein and in the Guarantee and Collateral Agreement shall not in any way be affected or impaired thereby (it being understood that the
invalidity of a particular provision in a particular jurisdiction shall not in and of itself affect the validity of such provision in any other jurisdiction). The parties hereto shall endeavor in good-faith negotiations to replace the invalid,
illegal 

 
or unenforceable provisions with valid provisions the economic effect of which comes as close as possible to that of the invalid, illegal or unenforceable
provisions. 
 SECTION 8. All communications and notices hereunder shall be in writing and given as provided in Section 7.01 of the
Guarantee and Collateral Agreement. All communications and notices hereunder to the New Subsidiary shall be given to it at the address set forth under its signature below. 
 SECTION 9. The New Subsidiary agrees to reimburse the Agent for its reasonable out-of-pocket expenses in connection with this Supplement, including the
reasonable fees, other charges and disbursements of counsel for the Agent. 
 [Remainder of page intentionally left blank]

 IN WITNESS WHEREOF, the New Subsidiary and the Agent have duly executed this Supplement to the Guarantee
and Collateral Agreement as of the day and year first above written. 
  

			
	ACME AEROSPACE, INC.
		
	By	 	 /s/ Gregory Rufus

	Name:	 	Gregory Rufus
	Title:	 	Secretary
		
		 	Address:
		 	c/o TransDigm Inc.
		 	The Tower at Erieview
		 	1301 East 9th Street,
Suite 3710
		 	Cleveland, OH 44114
		 	Attn: Gregory Rufus
		 	Facsimile No: (216) 706-2937
		
		 	Legal Name: ACME AEROSPACE, INC.
		
		 	Jurisdiction
		 	of Formation: Delaware
		
		 	Location of Chief
		 	Executive Office:
		 	 528 W. 21st Street

		 	 Tempe, AZ 85282

			
	CREDIT SUISSE, CAYMAN ISLANDS BRANCH, as Agent
		
	By	 	 /s/ John Toronto

	Name:	 	John Toronto
	Title:	 	Director
		
	By	 	 /s/ Rianka Mohan

	Name:	 	Rianka Mohan
	Title:	 	Vice President

 Schedule I to 
 Supplement No. 7 
 to the Guarantee and 
 Collateral Agreement 
 LOCATION OF COLLATERAL 
  

			
	 Description
	  	 Location

	All assets pledged pursuant to the terms hereof	  	 Suites 5,6,7 and 8, Roosevelt Tech
 Center, 528 W. 21
st Street, Tempe, AZ

	All assets pledged pursuant to the terms hereof	  	 444 W. 21st Street (Broadway Business Park),
 Suite 106, Tempe, AZ

 JURISDICTION OF FORMATION 
 Delaware 
 ORGANIZATION NUMBER (OR EQUIVALENT) 
 (FROM JURISDICTION OF FORMATION) 
 N/A

 Schedule II to 
 Supplement No. 7 
 to the Guarantee and 
 Collateral Agreement 
 Pledged Securities of the New Subsidiary 
 CAPITAL STOCK 
  

										
	 Issuer
	  	Number of
Certificate	  	 Registered
 Owner
	  	 Number and
 Class of
 Equity Interests

	  	Percentage
of Equity
Interests	 
	 Acme Aerospace, Inc.
	  	3	  	TransDigm Inc.	  	100 shares of common stock	  	100	% 

 DEBT SECURITIES 
  

							
	 Issuer
	  	Principal
Amount	  	Date of Note	  	Maturity Date
	 None.
	  		  		  	

 Schedule III to 
 Supplement No. 7 
 to the Guarantee and 
 Collateral Agreement 
 INTELLECTUAL PROPERTY 
 PATENTS 
  

									
	 Title
	  	 Country
	  	Patent No.	  	Issue Date	  	Application No.
	 Battery Terminal Connector
	  	 United States
 of America
	  	5,158,842	  	27/10/1992	  	07/858,676
	 Storage Battery Electrodes With Integral Conductors*
	  	 China
 (People’s Republic)
	  		  		  	2006800431256
	 Storage Battery Electrodes With Integral Conductors*
	  	Germany	  		  		  	1120060029061
	 Storage Battery Electrodes With Integral Conductors*
	  	India	  		  		  	1032KOLNP2008
	 Storage Battery Electrodes With Integral Conductors*
	  	Japan	  		  		  	2008-541220
	 Storage Battery Electrodes With Integral Conductors*
	  	 United States
 of America
	  		  		  	11/282,537
	 Sealed Rechargeable Battery
	  	Canada	  	2157930	  	6/12/2005	  	2157930
	 Sealed Rechargeable Battery
	  	Japan	  	3454510	  	25/07/2003	  	6-520060
	 Sealed Rechargeable Battery
	  	 United States
 of America
	  	5,290,640	  	1/03/1994	  	08/029,136
	 Sealed Rechargeable Battery with Stabilizer
	  	Mexico	  	190889	  	7/01/1999	  	9503937
	 Sealed Rechargeable Battery with Stabilizer
	  	 United States
 of America
	  	5,569,554	  	29/10/1996	  	08/306,633
	 Terminal Structure and Seal
	  	 United States
 of America
	  	5,273,845	  	28/12/1993	  	07/931,727

 TRADEMARKS 
  

									
	 Mark
	  	 Country
	  	Reg. No.	  	Reg. Date.	  	Serial No.
	 A
 [Stylized]
	  	 United States
 of America
	  	1549852	  	01/08/1989	  	73685386Joinder Agreement, dated as of July 27, 2009

 Exhibit 10.3 
 Execution Version 
 JOINDER AGREEMENT 
 THIS JOINDER AGREEMENT (this “Agreement”), dated as of July 27, 2009, is entered into between ACME AEROSPACE, INC., a Delaware
corporation (the “New Subsidiary”), and CREDIT SUISSE, as Agent, under that certain Credit Agreement, dated as of June 23, 2006 (as the same may be amended, supplemented or otherwise modified from time to time, the
“Credit Agreement”), among TransDigm Inc., a Delaware corporation (the “Borrower”), TransDigm Group Incorporated, a Delaware corporation, the Subsidiaries of the Borrower from time to time party thereto, the Lenders
from time to time party thereto and the Agent, as amended by (i) that certain Amendment No. 1, Consent and Agreement dated as of January 25, 2007 and (ii) that certain Assumption Agreement dated as of February 7, 2007. All
capitalized terms used herein and not otherwise defined shall have the meanings set forth in the Credit Agreement. 
 The New Subsidiary and
the Agent, for the benefit of the Lenders, hereby agree as follows: 
 1. The New Subsidiary hereby acknowledges, agrees and confirms that,
by its execution of this Agreement, the New Subsidiary will be deemed to be a Loan Party under the Credit Agreement and a Loan Guarantor for all purposes of the Credit Agreement and shall have all of the obligations of a Loan Party and a Loan
Guarantor thereunder as if it had executed the Credit Agreement. The New Subsidiary hereby ratifies, as of the date hereof, and agrees to be bound by, all of the terms, provisions and conditions contained in the Credit Agreement, including without
limitation (a) all of the representations and warranties of the Loan Parties set forth in Article III of the Credit Agreement (to the extent made or deemed made on or after the effective date hereof), (b) all of the covenants set forth in
Articles V and VI of the Credit Agreement and (c) all of the guaranty obligations set forth in the Guarantee and Collateral Agreement. Without limiting the generality of the foregoing terms of this paragraph 1, the New Subsidiary, subject to
the limitations set forth in the Guarantee and Collateral Agreement, hereby absolutely and unconditionally guarantees, jointly and severally with the other Loan Guarantors, to the Agent and the Lenders, the prompt payment of the Secured Obligations
in full when due (whether at stated maturity, upon acceleration or otherwise) to the extent of and in accordance with the Guarantee and Collateral Agreement. 
 2. If required, the New Subsidiary is, simultaneously with the execution of this Agreement, executing and delivering such Collateral Documents (and such other documents and instruments) as requested by the Agent in
accordance with the Credit Agreement, except for items listed on Schedule I hereto which will be executed and delivered as soon as practical. 
 3. The New Subsidiary hereby waives acceptance by the Agent and the Lenders of the guaranty by the New Subsidiary upon the execution of this Agreement by the New Subsidiary. 

 4. This Agreement may be executed in any number of counterparts, each of which when so executed and
delivered shall be an original, but all of which shall constitute one and the same instrument. 
 5. THIS AGREEMENT AND THE RIGHTS AND
OBLIGATIONS OF THE PARTIES HEREUNDER SHALL BE CONSTRUED IN ACCORDANCE WITH AND GOVERNED BY THE LAWS OF THE STATE OF NEW YORK. 
 [Remainder of page intentionally left blank] 

 IN WITNESS WHEREOF, the New Subsidiary has caused this Agreement to be duly executed by their respective
authorized officer, and the Agent, for the benefit of the Lenders, has caused the same to be accepted by its authorized officer, as of the day and year first above written. 
  

			
	ACME AEROSPACE, INC.
		
	By	 	 /s/ Gregory Rufus

	Name:	 	Gregory Rufus
	Title:	 	Secretary

			
	Acknowledged and accepted:
	
	CREDIT SUISSE, CAYMAN ISLANDS BRANCH, as Agent
		
	By	 	 /s/ John Toronto

	Name:	 	John Toronto
	Title:	 	Director
		
	by	 	 /s/ Rianka Mohan

	Name:	 	Rianka Mohan
	Title:	 	Vice President

 SCHEDULE I 
 ITEMS TO BE EXECUTED AND DELIVERED 
 The stock certificates representing the Equity Interests described
immediately below accompanied by stock powers duly executed in blank: 
  

										
	 Issuer
	  	Number of
Certificate	  	 Registered
 Owner
	  	 Number and
 Class of
 Equity Interests
	  	Percentage
of Equity
Interests	 
	 Acme Aerospace, Inc.
	  	3	  	TransDigm Inc.	  	100 shares of common stock	  	100	%

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