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Exhibit 10.1  

        
TRANSDIGM INC., 

TRANSDIGM
GROUP INCORPORATED, 

THE
GUARANTORS named herein 

and 

THE
BANK OF NEW YORK TRUST COMPANY, N.A., as Trustee 

THIRD
SUPPLEMENTAL INDENTURE 

Dated
as of June 29, 2007 

To 

Indenture
Dated as of June 23, 2006 

by
and among 

TRANSDIGM INC., 

TRANSDIGM
GROUP INCORPORATED, 

the
GUARANTORS named therein and 

THE
BANK OF NEW YORK TRUST COMPANY, N.A., as Trustee 

73/4%
Senior Subordinated Notes due 2014 

of
TransDigm Inc. 

 
 
 

THIRD SUPPLEMENTAL INDENTURE    
    

        THIRD SUPPLEMENTAL INDENTURE (this "SUPPLEMENTAL INDENTURE"), dated as of June 29, 2007, among AeroControlex Group, Inc., a Delaware corporation
(the "GUARANTEEING SUBSIDIARY"), TransDigm Inc., a Delaware corporation (the "COMPANY"), TransDigm Group Incorporated, a Delaware corporation ("TD GROUP"), Adams Rite Aerospace, Inc., a
California corporation ("ADAMS RITE"), ZMP, Inc., a California corporation ("ZMP"), MarathonNorco Aerospace, Inc., a Delaware corporation ("MARATHON"), Christie Electric Corp., a
California corporation ("CHRISTIE"), Champion Aerospace Inc., a Delaware corporation ("CHAMPION"),
AVIONIC INSTRUMENTS INC., a Delaware corporation ("AVIONIC"), DAC Realty Corp., a New Jersey corporation ("DAC"), Skurka Aerospace Inc., a Delaware corporation ("SKURKA"), SWEENEY
ENGINEERING CORP., a California corporation ("SWEENEY"), CDA InterCorp., a Florida corporation ("CDA"), Aviation Technologies, Inc. ("ATI"), Avtech Corporation, a Washington corporation
("AVTECH"), Transicoil Corp., a Delaware corporation ("TRANSICOIL"), West Coast Specialties, Inc., a Washington corporation ("WEST COAST"), Malaysian Aerospace
Services, Inc., a Delaware corporation ("MALAYSIAN" and, together with TD Group, Adams Rite, ZMP, Marathon, Christie, Champion, Avionic, DAC, Skurka, Sweeney, CDA, ATI, Avtech, Transicoil, West
Coast and Malaysian, the "EXISTING GUARANTORS"), and The Bank of New York Trust Company, N.A., as trustee under the indenture referred to below (the "TRUSTEE"). 

 
 

W I T N E S S E T H    
    

        WHEREAS, the Company and the Existing Guarantors have heretofore executed and delivered to the Trustee an indenture (as supplemented by the First Supplemental
Indenture thereto, dated as of November 2, 2006, and the Second Supplemental Indenture, dated as of February 7, 2007, the "INDENTURE"), dated as of June 23, 2006, providing for
the issuance by the Company of 73/4% Senior Subordinated Notes due 2014 (the "NOTES") and the guarantees thereof by each of the Existing Guarantors; 

        WHEREAS,
the Indenture provides that under certain circumstances described therein, newly created or acquired Domestic Restricted Subsidiaries shall execute and deliver to the Trustee a
supplemental indenture to the Indenture providing for a senior subordinated guarantee of payment of the Notes by such Domestic Restricted Subsidiary (the "SUBSIDIARY GUARANTEE"); and 

        WHEREAS,
pursuant to Section 9.01(g) of the Indenture, the Trustee is authorized to execute and deliver this Supplemental Indenture without the consent of the Holders Notes. 

        NOW
THEREFORE, in consideration of the foregoing and for other good and valuable consideration, the receipt of which is hereby acknowledged, the Guaranteeing Subsidiary covenants and
agrees for the equal and ratable benefit of the Holders of the Notes as follows: 

        1.     CAPITALIZED
TERMS. Capitalized terms used herein without definition shall have the meanings assigned to them in the Indenture. 

2

 

        2.     GUARANTEE,
ETC. The Guaranteeing Subsidiary hereby agrees that from and after the date hereof it shall be a Guarantor under the Indenture and be bound by the terms
thereof applicable to Guarantors and shall be entitled to all of the rights and subject to all the obligations of a Guarantor thereunder. 

        3.     RATIFICATION
OF INDENTURE; SUPPLEMENTAL INDENTURES PART OF INDENTURE. The Indenture is in all respects ratified and confirmed and all the terms, conditions and provisions
thereof shall remain in full force and effect. This Supplemental Indenture shall form a part of the Indenture for all purposes, and every holder of Notes heretofore or hereafter authenticated
and delivered shall be bound hereby. 

        4.     EXECUTION
AND DELIVERY. The Guaranteeing Subsidiary agrees that the Guarantee granted by it pursuant to the terms hereof shall remain in full force and effect
notwithstanding any failure to endorse on each Note a notation of such Guarantee. 

        5.     NO
RECOURSE AGAINST OTHERS. No past, present or future director, officer, employee, incorporator, stockholder or agent of the Guaranteeing Subsidiary (or any successor
entity) (other than the Company or the Existing Guarantors), as such, shall have any liability for any obligations of the Company, TD Group, the Guaranteeing Subsidiary or any other Guarantor under
the Notes, any Guarantee, the Indenture or this Supplemental Indenture or for any claim based on, in respect of, or by reason of, such obligations or their creation. Each Holder of the Notes by
accepting a Note waives and releases all such liability. The waiver and release are part of the consideration for issuance of the Notes. 

        6.     NEW
YORK LAW TO GOVERN. THE INTERNAL LAW OF THE STATE OF NEW YORK SHALL GOVERN AND BE USED TO CONSTRUE THIS SUPPLEMENTAL INDENTURE AND THE GUARANTEE GRANTED HEREUNDER
WITHOUT GIVING EFFECT TO APPLICABLE PRINCIPLES OF CONFLICTS OF LAW TO THE EXTENT THAT THE APPLICATION OF THE LAWS OF ANOTHER JURISDICTION WOULD BE REQUIRED THEREBY. 

        7.     COUNTERPART
ORIGINALS. The parties may sign any number of copies of this Supplemental Indenture. Each signed copy shall be an original, but all of them together represent
the same agreement. 

        8.     EFFECT
OF HEADINGS. The Section headings have been inserted for convenience of reference only, are not to be considered part of this Supplemental Indenture and shall in
no way modify or restrict any of the terms or provisions hereof. 

        9.     THE
TRUSTEE. The Trustee shall not be responsible in any manner whatsoever for or in respect of the validity or sufficiency of this Supplemental Indenture or for or in
respect of the recitals contained herein, all of which recitals are made solely by the Guaranteeing Subsidiary, the Existing Guarantors and the Company. 

[The remainder of this page is intentionally left blank.]

3

 

        IN
WITNESS WHEREOF, the parties hereto have caused this Third Supplemental Indenture to be duly executed as of the date first above written. 

	

 	

TRANSDIGM INC.
	

 	

By:	

/s/  GREGORY RUFUS      

	 	 	Name:	Gregory Rufus
	 	 	Title:	VP and Chief Financial Officer
	

 	

TRANSDIGM GROUP INCORPORATED
	

 	

By:	

/s/  GREGORY RUFUS      

	 	 	Name:	Gregory Rufus
	 	 	Title:	VP and Chief Financial Officer
	

 	

ADAMS RITE AEROSPACE, INC.
	

 	

By:	

/s/  GREGORY RUFUS      

	 	 	Name:	Gregory Rufus
	 	 	Title:	Treasurer and Asst. Secretary
	

 	

ZMP, Inc.
	

 	

By:	

/s/  GREGORY RUFUS      

	 	 	Name:	Gregory Rufus
	 	 	Title:	Treasurer and Asst. Secretary
	

 	

MARATHONNORCO AEROSPACE, INC.
	

 	

By:	

/s/  GREGORY RUFUS      

	 	 	Name:	Gregory Rufus
	 	 	Title:	Treasurer and Asst. Secretary
	

 	

CHRISTIE ELECTRIC CORP.
	

 	

By:	

/s/  GREGORY RUFUS      

	 	 	Name:	Gregory Rufus
	 	 	Title:	Treasurer and Asst. Secretary
	

 	

CHAMPION AEROSPACE, INC.
	

 	

By:	

/s/  GREGORY RUFUS      

	 	 	Name:	Gregory Rufus
	 	 	Title:	Treasurer and Asst. Secretary

4

 

	

 	

AVIONIC INSTRUMENTS, INC.
	

 	

By:	

/s/  GREGORY RUFUS      

	 	 	Name:	Gregory Rufus
	 	 	Title:	Treasurer and Asst. Secretary
	

 	

DAC REALTY CORP.
	

 	

By:	

/s/  GREGORY RUFUS      

	 	 	Name:	Gregory Rufus
	 	 	Title:	Treasurer and Asst. Secretary
	

 	

SKURKA AEROSPACE INC.
	

 	

By:	

/s/  GREGORY RUFUS      

	 	 	Name:	Gregory Rufus
	 	 	Title:	Treasurer and Asst. Secretary
	

 	

SWEENEY ENGINEERING CORP.
	

 	

By:	

/s/  GREGORY RUFUS      

	 	 	Name:	Gregory Rufus
	 	 	Title:	Secretary and Treasurer
	

 	

CDA INTERCORP.
	

 	

By:	

/s/  GREGORY RUFUS      

	 	 	Name:	Gregory Rufus
	 	 	Title:	Secretary and Treasurer
	

 	

AVIATION TECHNOLOGIES, INC.
	

 	

By:	

/s/  GREGORY RUFUS      

	 	 	Name:	Gregory Rufus
	 	 	Title:	Secretary and Treasurer
	

 	

AVTECH CORPORATION
	

 	

By:	

/s/  GREGORY RUFUS      

	 	 	Name:	Gregory Rufus
	 	 	Title:	Secretary and Treasurer
	

 	

TRANSICOIL CORP.
	

 	

By:	

/s/  GREGORY RUFUS      

	 	 	Name:	Gregory Rufus
	 	 	Title:	Secretary and Treasurer

5

 

	

 	

WEST COAST SPECIALTIES, INC.
	

 	

By:	

/s/  GREGORY RUFUS      

	 	 	Name:	Gregory Rufus
	 	 	Title:	Secretary and Treasurer
	

 	

MALAYSIAN AEROSPACE SERVICES, INC.
	

 	

By:	

/s/  GREGORY RUFUS      

	 	 	Name:	Gregory Rufus
	 	 	Title:	Secretary and Treasurer
	

 	

AEROCONTROLEX GROUP, INC.
	

 	

By:	

/s/  GREGORY RUFUS      

	 	 	Name:	Gregory Rufus
	 	 	Title:	Secretary and Treasurer

6

 

	

 	

THE BANK OF NEW YORK TRUST

COMPANY, N.A., as Trustee
	

 	

By:	

/s/  ROXANNE J. ELLWANGER      

	 	 	Name:	Roxanne J. Ellwanger
	 	 	Title:	Asst. Vice President

7

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THIRD SUPPLEMENTAL INDENTURE

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Exhibit 10.2  

        SUPPLEMENT
NO. 3 dated as of June 30, 2007, 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 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 as administrative agent and collateral agent (in such
capacity, the "Agent") for the Secured Parties (as defined herein). 

        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. 

        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
referred to therein, 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 (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 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 (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 follow] 

2

 

        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. 

	 	 	AEROCONTROLEX GROUP, INC.,
	
 	
 	

by	
 	

/s/  GREGORY RUFUS      

	 	 	 	 	Name:	 	Gregory Rufus
	 	 	 	 	Title:	 	Treasurer
	

 	
 	

 	
 	

Address:

c/o Transdigm Inc.

The Tower at Erieview

1301 East 9th Street, Suite 3710

Cleveland, OH 44114

Attention: Gregory Rufus

Facsimile No: (216) 706-2937
	

 	
 	

 	
 	

Legal Name: AeroControlex Group, Inc.
	

 	
 	

 	
 	

Jurisdiction of Formation: Delaware
	

 	
 	

 	
 	

Location of Chief Executive Office:

313 Gillett Street

Painesville, OH 44077
	

 	
 	
CREDIT SUISSE, AS AGENT
	
 	
 	

by	
 	

	 	 	 	 	Name:	 	 
	 	 	 	 	Title:	 	 
	

 	
 	

by	
 	

	 	 	 	 	Name:	 	 
	 	 	 	 	Title:	 	 

3

Schedule I to

Supplement No. 3 to the

Guarantee and

Collateral Agreement 

 
 

LOCATION OF COLLATERAL    
    

	Description
 
	 	Location

	Owned real estate property and all other property located thereon	 	4223 Monticello Boulevard, South Euclid, Ohio, Guyhoga County
	

Owned real estate property and all other property located thereon	
 	

313 Gillett Street, Painesville, Ohio, Lake County
	 	 	 

 
 

JURISDICTION OF FORMATION    
    

Delaware.

Schedule
II to

Supplement No.      

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

	AeroControlex Group, Inc.	 	1	 	TransDigm Inc.	 	100 shares of common stock	 	100%

 
 

DEBT SECURITIES    
    

	Issuer
 
	 	Principal Amount
	 	Date of Note
	 	Maturity Date

	None.	 	 	 	 	 	 

 
 

INTELLECTUAL PROPERTY    
    

Patents
listed on Schedule A attached hereto. 

 
 

SCHEDULE A    
    

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LOCATION OF COLLATERAL

JURISDICTION OF FORMATION

CAPITAL STOCK

DEBT SECURITIES

INTELLECTUAL PROPERTY

SCHEDULE A

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