Document:

EX-10.1

 Exhibit 10.1 
 JOINDER AGREEMENT 
 THIS JOINDER AGREEMENT dated as of June 26, 2013
(this “Agreement”), is entered into between WHIPPANY ACTUATION SYSTEMS, LLC, a Delaware limited liability company (the “New Subsidiary”), and CREDIT SUISSE AG, as administrative agent and collateral agent (in such
capacities, the “Agent”), under that certain Amended and Restated Credit Agreement dated as of February 28, 2013 (as the same may be further 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. 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 Subsidiary Guarantor for all purposes of the Credit Agreement and shall have all of the obligations of a Loan Party and a Subsidiary 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 Guarantors, to the Agent and the Lenders, the prompt payment of the Additional Obligations in full when due (whether at stated maturity, upon acceleration or otherwise) to the extent of and in
accordance with 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 reasonably requested by the Agent in accordance with the Credit Agreement. 

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. 

 IN WITNESS WHEREOF, the New Subsidiary has caused this Agreement to be duly executed by its
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. 

 

			
	WHIPPANY ACTUATION SYSTEMS, LLC
		
	by	 	/s/ Gregory Rufus          
		 	Name: Gregory Rufus
		 	Title:   Secretary and Treasurer

 Acknowledged and accepted: 

 

			
	CREDIT SUISSE AG, as Agent
		
	by	 	/s/ Kevin Buddhdew
		 	Name: Kevin Buddhdew
		 	Title:   Authorized Signatory

  

			
		
	by	 	/s/ Patrick Freytag
		 	Name: Patrick Freytag
		 	Title:   Authorized SignatoryEX-10.2

 Exhibit 10.2 
 SUPPLEMENT NO. 2 dated as of June 26, 2013 (this “Supplement”), to the Guarantee and Collateral Agreement dated as of June 23, 2006, as amended and restated as of
December 6, 2010, February 14, 2011, and February 28, 2013 (as further amended, restated, supplemented or otherwise modified from time to time, 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 listed on Schedule I 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
AG, as collateral agent for the Secured Parties and as administrative agent (in such capacities, the “Agent”). 

A.    Reference is made to the Amended and Restated Credit Agreement dated as of February 28, 2013 (as further
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 from time to time party thereto (the
“Lenders”) and the Agent. 
 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 the context may require. 
 C.    The Grantors have entered into the Guarantee and Collateral Agreement in order to induce the Lenders to make Loans and the Issuing Banks 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 (the “New Subsidiary”) is executing this Supplement in accordance with the requirements of the Credit Agreement to become a Subsidiary Guarantor and a Grantor
under the Guarantee and Collateral Agreement in order to induce the Lenders to make additional Loans and the Issuing Banks 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 (except for any representation or warranty that is limited by its terms to an earlier specified date). 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
ratable 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 subject to applicable bankruptcy, insolvency or similar laws affecting
creditors’ rights generally and to general principles of equity. 
 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 or other electronic
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 all leased and owned real property of the New Subsidiary and each other location where any Collateral of the New Subsidiary is stored or otherwise located with a value in excess of $300,000 for each such
location, set forth on Schedule II is a true and correct schedule of the Pledged Collateral of the New Subsidiary and set forth on Schedule III is a true and correct schedule of the Intellectual Property of the New Subsidiary, and
(b) 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. 

[Signature pages to follow] 

 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. 
  

			
	WHIPPANY ACTUATION SYSTEMS, LLC
		
	by	 	/s/ Gregory Rufus        
		 	Name: Gregory Rufus
		 	Title:   Secretary and Treasurer
		 	 Address: The Tower at Erieview
 1301 E. 9th Street, Suite 3710
 Cleveland, OH 44114

		 	 Legal Name: Whippany Actuation
 Systems, LLC

		 	 Jurisdiction of Formation: Delaware
 Location of Chief Executive Office:

		 	 The Tower at Erieview
 1301 E. 9th Street, Suite 3710
 Cleveland, OH
44114

 
			
	CREDIT SUISSE AG, CAYMAN
ISLANDS BRANCH, as Agent
		
	by	 	/s/  Kevin Buddhdew        
		 	Name: Kevin Buddhdew
		 	Title:   Authorized Signatory

 
			
		
	by	 	/s/  Patrick Freytag        
		 	Name: Patrick Freytag
		 	Title:   Authorized Signatory

 Schedule I 
 to Supplement No. 2 
 to the Guarantee and 

Collateral Agreement 
 LOCATION OF COLLATERAL 
 Leased Real Property 

None. 
 Owned Real Property 
 None. 

Other Locations of Collateral 
 None. 

 Schedule II 
 to Supplement No. 2 
 to the Guarantee and 

Collateral Agreement 

PLEDGED SECURITIES OF THE NEW SUBSIDIARY 
 Capital Stock 
 None. 

Debt Securities 
 None. 
  

							
		 		 		 	 Schedule III
 to Supplement No. 2
 to the Guarantee and

Collateral Agreement

 INTELLECTUAL PROPERTY 
 None.

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