UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

~~WASHINGTON~~Washington, D.C. 20549

FORM 8-K

~~Current~~CURRENT ~~Report~~REPORT

Pursuant to Section 13 or 15(d) of

The Securities Exchange Act of 1934

Date of Report (~~date~~Date of earliest event reported): ~~February~~May 1017, 2005


TransDigm Inc.		TransDigm Holding Company
(Exact name of registrant as specified in its charter)		(Exact name of registrant as specified in its charter)

Delaware		Delaware
(State or other jurisdiction of incorporation)		(State or other jurisdiction of incorporation)
333-108340		333-108340-06
(Commission File Number)		(Commission File Number)
34-1750032		13-3733378
(IRS Employer Identification No.)		(IRS Employer Identification No.)
1301 East 9th Street, Suite 3710, Cleveland, Ohio		44114
(Address of principal executive offices)		(Zip Code)


Delaware		Delaware
(State or other jurisdiction of incorporation)		(State or other jurisdiction of incorporation)

Registrants’ telephone number, including area code (216) 289-4939


333-108340		333-108340-06
(Commission File Number)		(Commission File Number)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):


34-1750032		13-3733378
(IRS Employer Identification No.)		(IRS Employer Identification No.)


1301 East 9th Street, Suite 3710, Cleveland, Ohio		44114
(Address of principal executive offices)		(Zip Code)

(216) 706-2939

(Registrants’ telephone number, including area code)

(Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrants’ under any of the following provisions (see General Instruction A.2. below):

¨	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

¨	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

¨	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

¨	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 17.01. ~~Entry~~Regulation ~~into~~FD aDisclosure ~~Material Definitive Agreement.~~

AsOn ~~previously~~May ~~announced~~17, ~~in July 2004~~2005, TransDigm Inc. ~~(“TransDigm”)~~ ~~acquired all of the~~ issued ~~and~~a ~~outstanding~~press ~~shares~~release ofannouncing ~~capital~~its ~~stock~~regular ofquarterly ~~Avionic~~conference ~~Instruments Inc~~call. ~~(“Avionic”)~~A ~~and~~copy ~~DAC Realty Corp. (“DAC”). On February 10, 2005, and in accordance with the terms~~ of ~~that certain Indenture, dated as of July 22, 2003, among TransDigm, The Bank of New York, as trustee (~~the ~~“Trustee”),~~press ~~and~~release ~~the other parties named therein (as supplemented from time to time, the~~is ~~“Indenture”),~~attached ~~TransDigm Holding Company, TransDigm, Avionic, DAC, certain other direct and indirect subsidiaries of TransDigm and the Trustee, entered into that certain Second Supplemental Indenture~~ to ~~the~~this ~~Indenture~~report ~~(the “Second Supplemental Indenture”). In addition, on February 10, 2005, and in accordance with the terms of that certain Amended and Restated Credit Agreement, dated~~ as ofExhibit ~~April~~ 99.1, 2004, among TransDigm and the other parties named therein (as amended from time to time, the “Credit Agreement”), Avionic, DAC and Credit Suisse First Boston, as collateral agent, entered into Supplement No. 2 (“Supplement No. 2”) to the Guarantee and Collateral Agreement, dated as of July 22, 2003, among TransDigm and the other parties named therein. Pursuant to the terms of the Second Supplemental Indenture and Supplement No. 2, Avionic and DAC agreed to, among other things, guarantee all of the indebtedness of TransDigm outstanding under the Indenture and the Credit Agreement, respectively. In addition, under the terms of Supplement No. 2, Avionic and DAC pledged substantially all of their assets to secure their guaranteed obligations.

~~Copies~~Item ~~of the Second Supplemental Indenture and Supplement No~~9. 201 ~~are~~Financial ~~attached~~Statements ~~to this filing as Exhibit 10.1~~ and ~~10.2, respectively, and are incorporated herein by reference, and the foregoing summary of the terms and conditions of the Second Supplemental Indenture and Supplement No. 2 is qualified in its~~ ~~entirety~~Exhibits ~~by reference to such exhibits.~~

Item 9.01. Financial Statements and Exhibits.

Exhibit No.		Description
10.1		Second Supplemental Indenture, dated as of February 10, 2005, among TransDigm Holding Company, TransDigm Inc., Avionic Instruments Inc., DAC Realty Corp., the other direct and indirect subsidiaries of TransDigm Inc. named therein and The Bank of New York, as trustee.
99.1		Press Release issued May 17, 2005
10.2		Supplement No. 2, dated as of February 10, 2005, among Avionic Instruments Inc., DAC Realty Corp. and Credit Suisse First Boston, as collateral agent, to the Guarantee and Collateral Agreement, dated as of July 22, 2003, among TransDigm Holding Company, TransDigm Inc., the direct and indirect subsidiaries of TransDigm Inc. named therein and Credit Suisse First Boston, as collateral agent.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the Co-Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

TRANSDIGM INC. By: /s/ Gregory Rufus ~~Name:~~ Gregory Rufus ~~Title:~~ Chief Financial Officer

Date: ~~February 16~~May 18, 2005

Pursuant to the requirements of the Securities Exchange Act of 1934, the Co-Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

TRANSDIGM HOLDING COMPANY By: /s/ Gregory Rufus ~~Name:~~ Gregory Rufus ~~Title:~~ Chief Financial Officer

Date: ~~February 16~~May 18, 2005

EXHIBIT INDEX

Exhibit No.		Description
10.1		Second Supplemental Indenture, dated as of February 10, 2005, among TransDigm Holding Company, TransDigm Inc., Avionic Instruments Inc., DAC Realty Corp., the other direct and indirect subsidiaries of TransDigm Inc. named therein and The Bank of New York, as trustee.
99.1		Press Release issued May 17, 2005
10.2		Supplement No. 2, dated as of February 10, 2005, among Avionic Instruments Inc., DAC Realty Corp. and Credit Suisse First Boston, as collateral agent, to the Guarantee and Collateral Agreement, dated as of July 22, 2003, among TransDigm Holding Company, TransDigm Inc., the direct and indirect subsidiaries of TransDigm Inc. named therein and Credit Suisse First Boston, as collateral agent.

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