TransDigm (TDG) 10-Q 5 May 15 2015 Q2 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	6 Months Ended
	Mar. 28, 2015	Apr. 25, 2015
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	FALSE
Document Period End Date	28-Mar-15
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q2
Trading Symbol	TDG
Entity Registrant Name	TRANSDIGM GROUP INC
Entity Central Index Key	1260221
Current Fiscal Year End Date	-21
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		53,281,930

Condensed_Consolidated_Balance

Condensed Consolidated Balance Sheets (USD $)	Mar. 28, 2015	Sep. 30, 2014
In Thousands, unless otherwise specified
CURRENT ASSETS:
Cash and cash equivalents	$392,519	$819,548
Trade accounts receivable - Net	419,636	351,307
Inventories - Net	553,057	459,074
Deferred income taxes	36,645	37,669
Prepaid expenses and other	65,465	21,978
Total current assets	1,467,322	1,689,576
PROPERTY, PLANT AND EQUIPMENT - Net	232,335	212,108
GOODWILL	3,945,335	3,525,077
TRADEMARKS AND TRADE NAMES	634,621	514,520
OTHER INTANGIBLE ASSETS - Net	840,002	702,633
DEBT ISSUE COSTS - Net	84,486	92,393
OTHER	22,111	20,541
TOTAL ASSETS	7,226,212	6,756,848
CURRENT LIABILITIES:
Current portion of long-term debt	39,295	39,295
Short-term borrowings - trade receivable securitization facility	200,000	200,000
Accounts payable	120,656	115,741
Accrued liabilities	253,565	230,871
Total current liabilities	613,516	585,907
LONG-TERM DEBT	7,299,262	7,233,836
DEFERRED INCOME TAXES	483,403	402,247
OTHER NON-CURRENT LIABILITIES	156,239	90,957
Total liabilities	8,552,420	8,312,947
STOCKHOLDERS' DEFICIT:
Common stock - $.01 par value; authorized 224,400,000 shares; issued 54,674,114 and 53,832,246 at March 28, 2015 and September 30, 2014, respectively	547	538
Paid-in capital	885,778	794,767
Accumulated deficit	-1,952,185	-2,150,293
Accumulated other comprehensive loss	-84,408	-25,171
Treasury stock, at cost; 1,415,100 shares at March 28, 2015 and September 30, 2014	-175,940	-175,940
Total stockholders' deficit	-1,326,208	-1,556,099
TOTAL LIABILITIES AND STOCKHOLDERS' DEFICIT	$7,226,212	$6,756,848

Condensed_Consolidated_Balance1

Condensed Consolidated Balance Sheets (Parenthetical) (USD $)	Mar. 28, 2015	Sep. 30, 2014
Common stock, par value	$0.01	$0.01
Common stock, shares authorized	224,400,000	224,400,000
Common stock, shares issued	54,674,114	53,832,246
Treasury stock, shares	1,415,100	1,415,100

Condensed_Consolidated_Stateme

Condensed Consolidated Statements of Income (USD $)	3 Months Ended		6 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Mar. 28, 2015	Mar. 29, 2014	Mar. 28, 2015	Mar. 29, 2014
NET SALES	$619,030	$590,761	$1,205,928	$1,120,083
COST OF SALES	277,413	283,179	543,138	528,365
GROSS PROFIT	341,617	307,582	662,790	591,718
SELLING AND ADMINISTRATIVE EXPENSES	74,026	71,488	141,505	128,615
AMORTIZATION OF INTANGIBLE ASSETS	11,030	17,600	24,056	33,983
INCOME FROM OPERATIONS	256,561	218,494	497,229	429,120
INTEREST EXPENSE - Net	99,892	82,289	198,827	163,142
INCOME BEFORE INCOME TAXES	156,669	136,205	298,402	265,978
INCOME TAX PROVISION	45,775	45,850	91,975	89,500
NET INCOME	110,894	90,355	206,427	176,478
NET INCOME APPLICABLE TO COMMON STOCK	$110,894	$84,869	$203,062	$166,853
Net earnings per share - see Note 4:
Basic and diluted	$1.96	$1.49	$3.59	$2.93
Cash dividends paid per common share	$0	$0	$0	$0
Weighted-average shares outstanding
Basic and diluted	56,604	57,068	56,603	57,030

Condensed_Consolidated_Stateme1

Condensed Consolidated Statements Of Comprehensive Income (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Mar. 28, 2015	Mar. 29, 2014	Mar. 28, 2015	Mar. 29, 2014
Net income	$110,894	$90,355	$206,427	$176,478
Other comprehensive (loss) income, net of tax:
Foreign currency translation adjustments	-24,083	3,481	-34,781	6,128
Interest rate swap agreements, net of taxes of $7.8 million and $2.5 million for the thirteen week periods ended March 28, 2015 and March 29, 2014 and $13.7 million and $0.7 million for the twenty-six week periods ended March 28, 2015 and March 29, 2014, respectively.	-13,918	-4,307	-24,456	-243
Other comprehensive (loss) income, net of tax	-38,001	-826	-59,237	5,885
TOTAL COMPREHENSIVE INCOME	$72,893	$89,529	$147,190	$182,363

Condensed_Consolidated_Stateme2

Condensed Consolidated Statements Of Comprehensive Income (Parenthetical) (USD $)	3 Months Ended		6 Months Ended
In Millions, unless otherwise specified	Mar. 28, 2015	Mar. 29, 2014	Mar. 28, 2015	Mar. 29, 2014
Interest rate swap agreements, taxes	$7.80	$2.50	$13.70	$0.70

Condensed_Consolidated_Stateme3

Condensed Consolidated Statement of Changes in Stockholders' Deficit (USD $)	Total	Common Stock	Additional Paid-In Capital	Accumulated Deficit	Accumulated Other Comprehensive Loss	Treasury Stock
In Thousands, except Share data
BEGINNING BALANCE at Sep. 30, 2014	($1,556,099)	$538	$794,767	($2,150,293)	($25,171)	($175,940)
BEGINNING BALANCE (in shares) at Sep. 30, 2014	53,832,246	53,832,246				-1,415,100
Unvested dividend equivalents	-8,319			-8,319
Compensation expense recognized for employee stock options	13,594		13,594
Excess tax benefits related to share-based payment arrangements	38,029		38,029
Exercise of employee stock options (in shares)		827,545
Exercise of employee stock options	39,131	9	39,122
Common stock issued (in shares)		14,323
Common stock issued	266		266
Net income	206,427			206,427
Foreign currency translation adjustments	-34,781				-34,781
Interest rate swaps, net of tax	-24,456				-24,456
ENDING BALANCE at Mar. 28, 2015	($1,326,208)	$547	$885,778	($1,952,185)	($84,408)	($175,940)
ENDING BALANCE (in shares) at Mar. 28, 2015	54,674,114	54,674,114				-1,415,100

Condensed_Consolidated_Stateme4

Condensed Consolidated Statements of Cash Flows (USD $)	6 Months Ended
In Thousands, unless otherwise specified	Mar. 28, 2015	Mar. 29, 2014
OPERATING ACTIVITIES:
Net income	$206,427	$176,478
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	16,347	15,630
Amortization of intangible assets	24,499	34,090
Amortization of debt issue costs	7,947	6,430
Net gain on sale of real estate		-804
Non-cash equity compensation	13,594	12,333
Excess tax benefits related to share-based payment arrangements	-38,029	-10,698
Deferred income taxes	5,528	-6,130
Changes in assets/liabilities, net of effects from acquisitions of businesses:
Trade accounts receivable	-9,656	-13,377
Inventories	-19,374	-4,880
Income taxes receivable/payable	4,508	9,371
Other assets	-529	3,255
Accounts payable	-11,349	-23,412
Accrued and other liabilities	-16,997	22,202
Net cash provided by operating activities	182,916	220,488
INVESTING ACTIVITIES:
Capital expenditures, net of disposals	-22,999	-17,709
Cash proceeds from sale of real estate		16,380
Acquisition of businesses, net of cash acquired	-723,200	-311,016
Net cash (used in) provided by investing activities	-746,199	-312,345
FINANCING ACTIVITIES:
Excess tax benefits related to share-based payment arrangements	38,029	10,698
Proceeds from exercise of stock options	39,122	9,422
Dividends paid	-3,365	-9,625
Repayment on 2014 term loan credit facility	-9,824	-7,761
Proceeds from 2014 revolving credit facility	75,250
Other	-41	-78
Net cash (used in) provided by financing activities	139,171	2,656
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	-2,917	152
NET DECREASE IN CASH AND CASH EQUIVALENTS	-427,029	-89,049
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	819,548	564,740
CASH AND CASH EQUIVALENTS, END OF PERIOD	392,519	475,691
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Cash paid during the period for interest	161,870	127,162
Cash paid during the period for income taxes	86,202	84,438
2014 Credit Facility
FINANCING ACTIVITIES:
Repayment on 2014 term loan credit facility	-9,824	-7,761
Proceeds from 2014 revolving credit facility	$75,250

DESCRIPTION_OF_THE_BUSINESS

DESCRIPTION OF THE BUSINESS	6 Months Ended
	Mar. 28, 2015
DESCRIPTION OF THE BUSINESS	1	DESCRIPTION OF THE BUSINESS
	Description of the Business – TransDigm Group Incorporated (“TD Group”), through its wholly-owned subsidiary, TransDigm Inc., is a leading global designer, producer and supplier of highly engineered aircraft components for use on nearly all commercial and military aircraft in service today. TransDigm Inc. along with TransDigm Inc.’s direct and indirect wholly-owned operating subsidiaries (collectively, with TD Group, the “Company” or “TransDigm”), offers a broad range of proprietary aerospace components. TD Group has no significant assets or operations other than its 100% ownership of TransDigm Inc. TD Group’s common stock is listed on The New York Stock Exchange, or the NYSE, under the trading symbol “TDG.”
	Major product offerings, substantially all of which are ultimately provided to end-users in the aerospace industry, include mechanical/electro-mechanical actuators and controls, ignition systems and engine technology, specialized pumps and valves, power conditioning devices, specialized AC/DC electric motors and generators, NiCad batteries and chargers, engineered latching and locking devices, rods and locking devices, engineered connectors and elastomers, cockpit security components and systems, specialized cockpit displays, aircraft audio systems, specialized lavatory components, seatbelts and safety restraints, engineered interior surfaces, lighting and control technology and military personnel parachutes and cargo loading, handling and delivery systems.

UNAUDITED_INTERIM_FINANCIAL_IN

UNAUDITED INTERIM FINANCIAL INFORMATION	6 Months Ended
	Mar. 28, 2015
UNAUDITED INTERIM FINANCIAL INFORMATION	2	UNAUDITED INTERIM FINANCIAL INFORMATION
	The financial information included herein is unaudited; however, the information reflects all adjustments (consisting solely of normal recurring adjustments) that are, in the opinion of management, necessary for a fair presentation of the Company’s financial position and results of operations and cash flows for the interim periods presented. These financial statements and notes should be read in conjunction with the financial statements and related notes for the year ended September 30, 2014 included in TD Group’s Form 10-K dated November 14, 2014. As disclosed therein, the Company’s annual consolidated financial statements were prepared in conformity with generally accepted accounting principles in the United States (“GAAP”). The September 30, 2014 condensed consolidated balance sheet was derived from TD Group’s audited financial statements. The results of operations for the twenty-six week period ended March 28, 2015 are not necessarily indicative of the results to be expected for the full year.

ACQUISITIONS

ACQUISITIONS	6 Months Ended
	Mar. 28, 2015
ACQUISITIONS	3	ACQUISITIONS
	During the twenty-six week periods ended March 28, 2015 and March 29, 2014, the Company completed the acquisitions of the Telair Cargo Group (“Telair”), Elektro-Metall Export GmbH, and Airborne Global Inc. The Company accounted for the acquisitions using the acquisition method and included the results of operations of the acquisitions in its consolidated financial statements from the effective date of each acquisition. The Company is in the process of obtaining a third-party valuation of certain tangible and intangible assets of Telair; therefore, the values attributed to those acquired assets in the condensed consolidated financial statements are subject to adjustment. Pro forma net sales and results of operations for the acquisitions had they occurred at the beginning of the applicable twenty-six week periods ended March 28, 2015 or March 29, 2014 are not significant and, accordingly, are not provided.
	The acquisitions strengthen and expand the Company’s position to design, produce and supply highly-engineered proprietary aerospace components in niche markets with significant aftermarket content and provide opportunities to create value through the application of our three core value-driven operating strategies (obtaining profitable new business, improving our cost structure, and providing highly engineered value-added products to customers). The purchase price paid for each acquisition reflects the current earnings before interest, taxes, depreciation and amortization (EBITDA) and cash flows, as well as, the future EBITDA and cash flows expected to be generated by the business, which are driven in most cases by the recurring aftermarket consumption over the life of a particular aircraft, estimated to be approximately 25-30 years.
	Telair Cargo Group – On March 26, 2015, TransDigm Inc. acquired Telair for a total purchase price of approximately $730.9 million in cash, subject to purchase price adjustments. TransDigm Inc. financed the acquisition of Telair through a combination of existing cash on hand and borrowing of $75 million under its existing revolving credit facility. Telair is a global leader in aerospace on-board cargo loading and handling, restraint systems and unit load devices for a variety of commercial and military platforms with positions on a wide range of new and existing aircraft. The business consists of three major operating units: Telair International GmbH, Nordisk Aviation Products and Telair US LLC. These products fit well with TransDigm’s overall business direction. Telair International GmbH and Telair US LLC are included in TransDigm’s Power & Control segment and Nordisk Aviation Products is included in TransDigm’s Airframe segment.
	The total purchase price was allocated to the underlying assets acquired and liabilities assumed based upon management’s estimated fair values at the date of acquisition. To the extent the purchase price exceeded the estimated fair value of the net identifiable tangible and intangible assets acquired, such excess was allocated to goodwill. The following table summarizes the purchase price allocation of the estimated fair values of the assets acquired and liabilities assumed at the transaction date (in thousands).
	Assets acquired:
	Current assets, excluding cash acquired		$	143,417
	Property, plant, and equipment			16,426
	Intangible assets			290,000
	Goodwill			439,946
	Other			1,445
	Total assets acquired		$	891,234
	Liabilities assumed:
	Current liabilities		$	46,708
	Other noncurrent liabilities			121,326
	Total liabilities assumed		$	168,034
	Net assets acquired		$	723,200
	The Company expects that the approximately $439.9 million of goodwill recognized for the acquisition will not be deductible for tax purposes.
	Elektro-Metall Export GmbH – On March 6, 2014, TransDigm Germany GmbH, a newly formed subsidiary of TransDigm Inc., acquired Elektro-Metall Export GmbH (“EME”) for approximately $49.6 million, which comprises $40.4 million in cash plus the assumption of approximately $9.2 million of net indebtedness. EME manufactures proprietary, highly engineered aerospace electromechanical actuators, electrical and electromechanical components and assemblies for commercial aircraft, helicopters and other specialty applications. These products fit well with TransDigm’s overall business direction. EME is included in TransDigm’s Airframe segment. The Company expects that the approximately $20.3 million of goodwill recognized for the acquisition will not be deductible for tax purposes.
	Airborne Global Inc. – On December 19, 2013, TransDigm Inc. acquired all of the outstanding stock of Airborne Global Inc. (“Airborne”) for approximately $264.2 million in cash, which includes a purchase price adjustment of $0.3 million paid in the second quarter of fiscal 2014. Airborne is the industry leading designer and manufacturer of personnel parachutes, cargo aerial delivery systems, emergency escape systems, naval decoys and other related products. These products fit well with TransDigm’s overall business direction. Airborne is included in TransDigm’s Airframe segment. The Company expects that the approximately $155.9 million of goodwill recognized for the acquisition will not be deductible for tax purposes.

RECENT_ACCOUNTING_PRONOUNCEMEN

RECENT ACCOUNTING PRONOUNCEMENTS	6 Months Ended
	Mar. 28, 2015
RECENT ACCOUNTING PRONOUNCEMENTS	4	RECENT ACCOUNTING PRONOUNCEMENTS
	In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2014-09 which creates a new topic in the Accounting Standards Codification (“ASC”) Topic 606, “Revenue From Contracts With Customers.” In addition to superseding and replacing nearly all existing U.S. GAAP revenue recognition guidance, including industry-specific guidance, ASC 606 establishes a new control-based revenue recognition model; changes the basis for deciding when revenue is recognized over time or at a point in time; provides new and more detailed guidance on specific topics; and expands and improves disclosures about revenue. In addition, ASU 2014-09 adds a new Subtopic to the Codification, ASC 340-40, “Other Assets and Deferred Costs: Contracts with Customers,” to provide guidance on costs related to obtaining a contract with a customer and costs incurred in fulfilling a contract with a customer that are not in the scope of another ASC Topic. The guidance is effective for the Company for annual reporting periods, including interim periods therein, for the year ending September 30, 2018. Early application is not permitted. The Company is currently evaluating the impact that the update will have on its financial position, results of operations, cash flows and financial statement disclosures.

EARNINGS_PER_SHARE_TWOCLASS_ME

EARNINGS PER SHARE (TWO-CLASS METHOD)	6 Months Ended
	Mar. 28, 2015
EARNINGS PER SHARE (TWO-CLASS METHOD)	5	EARNINGS PER SHARE (TWO-CLASS METHOD)
	The following table sets forth the computation of basic and diluted earnings per share (in thousands, except per share data):
			Thirteen Week Periods Ended					Twenty-Six Week Periods Ended
			March 28,		March 29,			March 28,			March 29,
			2015		2014			2015			2014
									`
	Numerator for earnings per share:
	Net income		$	110,894	$	90,355		$	206,427		$	176,478
	Less dividends paid on participating securities			—		(5,486	)		(3,365	)		(9,625	)
	Net income applicable to common stock - basic and diluted		$	110,894	$	84,869		$	203,062		$	166,853
	Denominator for basic and diluted earnings per share under the two-class method:
	Weighted average common shares outstanding			52,915		52,803			52,721			52,745
	Vested options deemed participating securities			3,689		4,265			3,882			4,285
	Total shares for basic and diluted earnings per share			56,604		57,068			56,603			57,030
	Basic and diluted earnings per share		$	1.96	$	1.49		$	3.59		$	2.93

INVENTORIES

INVENTORIES	6 Months Ended
	Mar. 28, 2015
INVENTORIES	6	INVENTORIES
	Inventories are stated at the lower of cost or market. Cost of inventories is determined by the average cost and the first-in, first-out (FIFO) methods for all locations except CEF Industries LLC, which determines the cost of inventories using the last-in, first-out (LIFO) method. Less than 3% of the inventory was valued under the LIFO method at March 28, 2015.
	Inventories consist of the following (in thousands):
			March 28,			September 30,
			2015			2014
	Raw materials and purchased component parts		$	361,648		$	298,318
	Work-in-progress			164,478			146,980
	Finished Goods			88,484			69,658
	Total			614,610			514,956
	Reserves for excess and obsolete inventory and LIFO			(61,553	)		(55,882	)
	Inventories - net		$	553,057		$	459,074

INTANGIBLE_ASSETS

INTANGIBLE ASSETS	6 Months Ended
	Mar. 28, 2015
INTANGIBLE ASSETS	7	INTANGIBLE ASSETS
	Intangible assets subject to amortization consist of the following (in thousands):
			March 28, 2015							September 30, 2014
			Gross Carrying		Accumulated			Net		Gross Carrying			Accumulated		Net
			Amount		Amortization					Amount			Amortization
	Technology		$	1,011,400	$	207,289		$	804,111	$	854,918		$	186,278	$	668,640
	Order backlog			13,006		8,006			5,000		8,006			6,006		2,000
	Other			43,304		12,413			30,891		43,252			11,259		31,993
	Total		$	1,067,710	$	227,708		$	840,002	$	906,176		$	203,543	$	702,633
	Intangible assets acquired during the twenty-six week period ended March 28, 2015 were as follows (in thousands):
			Cost		Amortization
					Period
	Intangible assets not subject to amortization:
	Goodwill		$	439,946
	Trademarks and trade names			125,000
				564,946
	Intangible assets subject to amortization:
	Technology			160,000		20 years
	Order backlog			5,000		1 year
				165,000		19.4 years
	Total		$	729,946
	The aggregate amortization expense on identifiable intangible assets for the twenty-six week periods ended March 28, 2015 and March 29, 2014 was approximately $24.5 million and $34.0 million, respectively. The estimated amortization expense is $52.7 million for fiscal 2015, $50.7 million for the fiscal year 2016, and $48.2 million for each of the five succeeding fiscal years 2017 through 2020.
	The following is a summary of changes in the carrying value of goodwill by segment from September 30, 2014 through March 28, 2015 (in thousands):
			Power &		Airframe			Non-aviation		Total
			Control
	Balance, September 30, 2014		$	1,563,438	$	1,906,270		$	55,369	$	3,525,077
	Goodwill acquired during the year			406,706		33,240			—		439,946
	Purchase price allocation adjustments			—		(2,424	)		—		(2,424	)
	Other			—		(17,264	)		—		(17,264	)
	Balance, March 28, 2015		$	1,970,144	$	1,919,822		$	55,369	$	3,945,335

INCOME_TAXES

INCOME TAXES	6 Months Ended
	Mar. 28, 2015
INCOME TAXES	8	INCOME TAXES
	At the end of each reporting period, TD Group makes an estimate of its annual effective income tax rate. The estimate used in the year-to-date period may change in subsequent periods. During the thirteen week periods ended March 28, 2015 and March 29, 2014, the effective income tax rate was 29.2% and 33.7%, respectively. During the twenty-six week periods ended March 28, 2015 and March 29, 2014, the effective income tax rate was 30.8% and 33.6%, respectively. The Company’s lower effective tax rate for the thirteen week period and the twenty-six week period ended March 28, 2015 was primarily due to foreign earnings taxed at rates lower than the U.S. statutory rate and a discrete adjustment related to agreed upon adjustments with the IRS for the fiscal year 2012 and 2013 examinations. The Company’s effective tax rate for these periods was less than the Federal statutory tax rate primarily due to the domestic manufacturing deduction, foreign earnings taxed at rates lower than the U.S. statutory rate and a discrete adjustment related to agreed upon adjustments with the IRS for the fiscal year 2012 and 2013 examinations.
	The Company and its subsidiaries file income tax returns in the U.S federal jurisdiction, various state and local jurisdictions as well as foreign jurisdictions located in Belgium, Canada, China, France, Germany, Hong Kong, Hungary, Malaysia, Mexico, Norway, Singapore, Sri Lanka, Sweden, and the United Kingdom. The Company is no longer subject to U.S. federal examinations for years before fiscal 2011. Fiscal years 2012 and 2013 have been examined by the IRS and adjustments have been agreed upon. AmSafe is subject to U.S. federal examinations for 2008, 2009, 2010 and 2011 years. In addition, the Company is subject to state income tax examinations for fiscal years 2009 and later.
	At March 28, 2015 and September 30, 2014, TD Group had $10.8 million and $13.9 million in unrecognized tax benefits, the recognition of which would have an effect of approximately $9.0 million and $13.5 million on the effective tax rate at March 28, 2015 and September 30, 2014, respectively. The Company believes that the tax positions that comprise the unrecognized tax benefit will be reduced by approximately $3.5 million over the next 12 months. The Company recognizes accrued interest and penalties related to unrecognized tax benefits in income tax expense.

FAIR_VALUE_MEASUREMENTS

FAIR VALUE MEASUREMENTS	6 Months Ended
	Mar. 28, 2015
FAIR VALUE MEASUREMENTS	9	FAIR VALUE MEASUREMENTS
	The following tables present our assets and liabilities that are measured at fair value on a recurring basis and are categorized using the fair value hierarchy. The fair value hierarchy has three levels based on the reliability of the inputs used to determine fair value. Level 1 inputs are quoted prices (unadjusted) in active markets for identical assets or liabilities. Level 2 inputs are quoted prices for similar assets and liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, and inputs (other than quoted prices) that are observable for the asset or liability, either directly or indirectly. Level 3 inputs are unobservable inputs for the asset or liability. A financial asset or liability’s classification within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement.
	The following summarizes the carrying amounts and fair values of financial instruments (in thousands):
					March 28, 2015				September 30, 2014
			Level		Carrying		Fair Value		Carrying		Fair Value
					Amount				Amount
	Assets:
	Cash and cash equivalents			1	$	392,519	$	392,519	$	819,548	$	819,548
	Liabilities:
	Interest rate swap agreements (1)			2		22,770		22,770		20,070		20,070
	Interest rate swap agreements (2)			2		41,150		41,150		4,650		4,650
	Short-term borrowings - trade receivable securitization facility			1		200,000		200,000		200,000		200,000
	Long-term debt, including current portion:
	Term loans and revolving credit facility			2		3,938,557		3,933,000		3,873,131		3,821,000
	5 1/2% Senior Subordinated Notes due 2020 (2020 Notes)			1		550,000		542,000		550,000		529,000
	7 1/2% Senior Subordinated Notes due 2021 (2021 Notes)			1		500,000		535,000		500,000		531,000
	6% Senior Subordinated Notes due 2022 (2022 Notes)			1		1,150,000		1,150,000		1,150,000		1,121,000
	6 1/2% Senior Subordinated Notes due 2024 (2024 Notes)			1		1,200,000		1,203,000		1,200,000		1,182,000
	-1	Included in Accrued liabilities on the Condensed Consolidated Balance Sheet.
	-2	Included in Other non-current liabilities on the Condensed Consolidated Balance Sheet.
	Interest rate swaps were measured at fair value using quoted market prices for the swap interest rate indexes over the term of the swap discounted to present value versus the fixed rate of the contract. The estimated fair value of the Company’s term loans and revolver was based on information provided by the agent under the Company’s senior secured credit facility. The estimated fair values of the Company’s 2020 Notes, 2021 Notes, 2022 Notes and 2024 Notes were based upon quoted market prices.

DERIVATIVES_AND_HEDGING_ACTIVI

DERIVATIVES AND HEDGING ACTIVITIES	6 Months Ended
	Mar. 28, 2015
DERIVATIVES AND HEDGING ACTIVITIES	10	DERIVATIVES AND HEDGING ACTIVITIES
	The Company is exposed to, among other things, the impact of changes in interest rates in the normal course of business. The Company’s risk management program is designed to manage the exposure and volatility arising from these risks, and utilizes derivative financial instruments to offset a portion of these risks. The Company uses derivative financial instruments only to the extent necessary to hedge identified business risks and does not enter into such transactions for trading purposes. The Company generally does not require collateral or other security with counterparties to these financial instruments and is therefore subject to credit risk in the event of nonperformance; however, the Company monitors credit risk and currently does not anticipate nonperformance by other parties. The company has agreements with each of its swap counterparties that contain a provision whereby if the Company defaults on the credit facility the Company could also be declared in default on its swaps, resulting in an acceleration of payment under the Swaps.
	Interest rate swap agreements are used to manage interest rate risk associated with floating-rate borrowings under our credit facility. The interest rate swap agreements utilized by the Company effectively modify the Company’s exposure to interest rate risk by converting a portion of the Company’s floating-rate debt to a fixed rate basis through the expiration date of the interest rate swap agreements, thereby reducing the impact of interest rate changes on future interest expense. These agreements involve the receipt of floating rate amounts in exchange for fixed rate interest payments over the term of the agreements without an exchange of the underlying principal amount. These derivative instruments that qualify as effective cash flow hedges under GAAP. For these cash flow hedges, the effective portion of the gain or loss from the financial instruments was initially reported as a component of accumulated other comprehensive income (loss) in stockholders’ equity and subsequently reclassified into earnings in the same line as the hedged item in the same period or periods during which the hedged item affected earnings.
	At March 28, 2015, five forward-starting interest rate swap agreements beginning March 31, 2016 were in place to hedge the variable interest rates on the credit facility for a fixed rate based on an aggregate notional amount of $750 million through June 30, 2020. These forward-starting interest rate swap agreements will effectively convert the variable interest rate on the aggregate notional amount of the credit facility to a fixed rate of 5.8% (2.8% plus the 3% margin percentage) over the term of the interest rate swap agreements.
	At March 28, 2015, three interest rate swap agreements beginning September 30, 2014 were in place to hedge the variable interest rates on the credit facility for a fixed rate based on an aggregate notional amount of $1.0 billion through June 30, 2019. These interest rate swap agreements converted the variable interest rate on the aggregate notional amount of the credit facility to a fixed rate of 5.4% (2.4% plus the 3% margin percentage) over the term of the interest rate swap agreements.
	At March 28, 2015, three interest rate swap agreements were in place to swap variable rates on the credit facility for a fixed rate based on an aggregate notional amount of $353 million. These interest rate swap agreements converted the variable interest rate on the aggregate notional amount to a fixed rate of 5.17% (2.17% plus the 3% margin percentage) through June 30, 2015.
	In conjunction with the refinancing of the 2011 Credit Facility, the Company no longer designated the interest rate swap agreements relating to the $353 million aggregate notional amount as cash flow hedges for accounting purposes. Accordingly, amounts previously recorded as a component of accumulated other comprehensive loss in stockholder’s equity will be amortized into earnings over the remaining period of the swap agreements.
	Based on the fair value amounts of the interest rate swap agreements determined as of March 28, 2015, the estimated net amount of existing gains and losses expected to be reclassified into interest expense within the next twelve months is approximately $17.3 million.

SEGMENTS

SEGMENTS	6 Months Ended
	Mar. 28, 2015
SEGMENTS	11	SEGMENTS
	The Company’s businesses are organized and managed in three reporting segments: Power & Control, Airframe and Non-aviation. Effective October 1, 2014, the Company made certain organizational realignments of the businesses comprising the Power & Control and the Airframe segments. Operating results for the thirteen week and twenty-six week periods ended March 29, 2014 were reclassified to conform to the presentation for the thirteen and twenty-six week periods ended March 28, 2015.
	The Power & Control segment includes operations that primarily develop, produce and market systems and components that predominately provide power to or control power of the aircraft utilizing electronic, fluid, power and mechanical motion control technologies. Major product offerings include mechanical/electro-mechanical actuators and controls, ignition systems and engine technology, specialized pumps and valves, engineered connectors and elastomers, power conditioning devices and specialized AC/DC electric motors and generators. Primary customers of this segment are engine and power system and subsystem suppliers, airlines, third party maintenance suppliers, military buying agencies and repair depots. Products are sold in the original equipment and aftermarket market channels.
	The Airframe segment includes operations that primarily develop, produce and market systems and components that are used in non-power airframe applications utilizing airframe and cabin structure technologies. Major product offerings include engineered latching and locking devices, rods and locking devices, cockpit security components and systems, aircraft audio systems, specialized lavatory components, seatbelts and safety restraints, engineered interior surfaces, lighting and control technology, personnel parachutes, cargo aerial delivery systems, emergency escape systems and naval decoys. Primary customers of this segment are airframe manufacturers and cabin system suppliers and subsystem suppliers, airlines, third party maintenance suppliers, military buying agencies and repair depots. Products are sold in the original equipment and aftermarket market channels.
	The Non-aviation segment includes operations that primarily develop, produce and market products for non-aviation markets. Major product offerings include seatbelts and safety restraints for ground transportation applications, mechanical/electro-mechanical actuators and controls for space applications, and refueling systems for heavy equipment used in mining, construction and other industries. Primary customers of this segment are off road vehicle suppliers and subsystem suppliers, child restraint system suppliers, satellite and space system suppliers and manufacturers of heavy equipment used in mining, construction and other industries.
	The primary measurement used by management to review and assess the operating performance of each segment is EBITDA As Defined. The Company defines EBITDA As Defined as earnings before interest, taxes, depreciation and amortization plus certain non-operating items including refinancing costs, acquisition-related costs, transaction-related costs and non-cash compensation charges incurred in connection with the Company’s stock option plans. Acquisition-related costs represent accounting adjustments to inventory associated with acquisitions of businesses and product lines that were charged to cost of sales when the inventory was sold; costs incurred to integrate acquired businesses and product lines into the Company’s operations, facility relocation costs and other acquisition-related costs; transaction related costs comprising deal fees; legal, financial and tax diligence expenses and valuation costs that are required to be expensed as incurred and other acquisition accounting adjustments.
	EBITDA As Defined is not a measurement of financial performance under GAAP. Although the Company uses EBITDA As Defined to assess the performance of its business and for various other purposes, the use of this non-GAAP financial measure as an analytical tool has limitations, and it should not be considered in isolation or as a substitute for analysis of the Company’s results of operations as reported in accordance with GAAP.
	The Company’s segments are reported on the same basis used internally for evaluating performance and for allocating resources. The accounting policies for each segment are the same as those described in the summary of significant accounting policies in the Company’s consolidated financial statements. Intersegment sales and transfers are recorded at values based on market prices, which creates intercompany profit on intersegment sales or transfers that is eliminated in consolidation. Intersegment sales were insignificant for the periods presented below.
	The following table presents net sales by reportable segment (in thousands):
			Thirteen Week				Twenty-Six Week
			Periods Ended				Periods Ended
			March 28,		March 29,		March 28,		March 29,
			2015		2014		2015		2014
	Net sales to external customers
	Power & Control		$	292,220	$	283,546	$	575,599	$	557,596
	Airframe			302,956		283,129		584,570		514,953
	Non-aviation			23,854		24,086		45,759		47,534
			$	619,030	$	590,761	$	1,205,928	$	1,120,083
	The following table reconciles EBITDA As Defined by segment to consolidated income before income taxes (in thousands):
			Thirteen Week				Twenty-Six Week
			Periods Ended				Periods Ended
			March 28,		March 29,		March 28,		March 29,
			2015		2014		2015		2014
	EBITDA As Defined
	Power & Control		$	149,670	$	140,780	$	295,798	$	277,738
	Airframe			139,271		122,833		265,092		229,329
	Non-aviation			5,141		5,047		9,879		10,152
	Total segment EBITDA As Defined			294,082		268,660		570,769		517,219
	Unallocated corporate expenses			6,013		5,692		12,972		10,694
	Total Company EBITDA As Defined			288,069		262,968		557,797		506,525
	Depreciation and amortization			19,061		25,881		40,846		49,720
	Interest expense - net			99,892		82,289		198,827		163,142
	Acquisition-related costs			4,617		10,435		6,128		15,352
	Stock compensation expense			7,830		8,158		13,594		12,333
	Income before income taxes		$	156,669	$	136,205	$	298,402	$	265,978
	The following table presents total assets by segment (in thousands):
			March 28, 2015		September 30, 2014
	Total assets
	Power & Control		$	3,242,471	$	2,453,308
	Airframe			3,230,550		3,243,516
	Non-aviation			131,145		132,988
	Corporate			622,046		927,036
			$	7,226,212	$	6,756,848
	The Company’s sales principally originate from the United States, and the Company’s long-lived assets are principally located in the United States.

SUBSEQUENT_EVENTS

SUBSEQUENT EVENTS	6 Months Ended
	Mar. 28, 2015
SUBSEQUENT EVENTS	12	SUBSEQUENT EVENTS
	On March 31, 2015, TransDigm Inc. acquired the aerospace business of Franke Aquarotter GmbH, whose name going forward is Adams Rite Aerospace GmbH (“ARA”), for approximately $75 million in cash. ARA manufactures proprietary faucets and related products for use on commercial transports and regional jets. ARA will be included in TransDigm’s Airframe segment.
	On April 30, 2015, the Company entered into a definitive agreement to acquire the assets of the aerospace business of Pexco LLC (“Pexco Aerospace”), a portfolio company of Odyssey Investment Partners, LLC, for approximately $496 million in cash. The purchase price includes approximately $160 million of tax benefits to be realized by TransDigm over a 15 year period beginning in 2015. TransDigm expects to finance the acquisition primarily through a combination of cash on hand, existing availability under our revolving credit facility and new debt. Pexco Aerospace manufactures extruded plastic interior parts for use in the commercial aerospace industry. Pexco Aerospace will be included in TransDigm’s Airframe segment.

SUPPLEMENTAL_GUARANTOR_INFORMA

SUPPLEMENTAL GUARANTOR INFORMATION	6 Months Ended
	Mar. 28, 2015
SUPPLEMENTAL GUARANTOR INFORMATION	13	SUPPLEMENTAL GUARANTOR INFORMATION
	TransDigm’s 2020 Notes, 2021 Notes, 2022 Notes and 2024 Notes are jointly and severally guaranteed, on a senior subordinated basis, by TD Group and TransDigm Inc.’s 100% Domestic Restricted Subsidiaries, as defined in the Indentures. The following supplemental condensed consolidating financial information presents, in separate columns, the balance sheets of the Company as of March 28, 2015 and September 30, 2014 and its statements of income and comprehensive income and cash flows for the twenty-six week periods ended March 28, 2015 and March 29, 2014 for (i) TransDigm Group on a parent only basis with its investment in subsidiaries recorded under the equity method, (ii) TransDigm Inc. including its directly owned operations and non-operating entities, (iii) the Subsidiary Guarantors on a combined basis, (iv) Non-Guarantor Subsidiaries and (v) the Company on a consolidated basis.
	Separate financial statements of TransDigm Inc. are not presented because TransDigm Inc.’s 2020 Notes, 2021 Notes, 2022 Notes and 2024 Notes are fully and unconditionally guaranteed on a senior subordinated basis by TD Group and all existing 100% owned domestic subsidiaries of TransDigm Inc. and because TD Group has no significant operations or assets separate from its investment in TransDigm Inc.
	TRANSDIGM GROUP INCORPORATED
	CONDENSED CONSOLIDATING BALANCE SHEET
	AS OF MARCH 28, 2015
	(Amounts in thousands)
			TransDigm			TransDigm			Subsidiary			Non-						Total
												Guarantor
			Group			Inc.			Guarantors			Subsidiaries			Eliminations			Consolidated
	ASSETS
	CURRENT ASSETS:
	Cash and cash equivalents		$	154		$	358,954		$	(965	)	$	34,376		$	—		$	392,519
	Trade accounts receivable - Net			—			(235	)		24,467			398,689			(3,285	)		419,636
	Inventories - Net			—			35,136			427,596			91,025			(700	)		553,057
	Deferred income taxes			—			36,645			—			—			—			36,645
	Prepaid expenses and other			—			42,437			14,129			8,899			—			65,465
	Total current assets			154			472,937			465,227			532,989			(3,985	)		1,467,322
	INVESTMENT IN SUBSIDIARIES AND INTERCOMPANY BALANCES		$	(1,326,362	)	$	6,070,783		$	4,084,770		$	(58,824	)	$	(8,770,367	)	$	—
	PROPERTY, PLANT AND EQUIPMENT - Net			—			15,766			175,787			40,782			—			232,335
	GOODWILL			—			154,463			3,639,870			151,002			—			3,945,335
	TRADEMARKS AND TRADE NAMES			—			31,748			546,053			56,820			—			634,621
	OTHER INTANGIBLE ASSETS - Net			—			7,595			815,099			18,768			(1,460	)		840,002
	DEBT ISSUE COSTS - Net			—			84,413			—			73			—			84,486
	OTHER			—			8,033			11,812			2,266			—			22,111
	TOTAL ASSETS		$	(1,326,208	)	$	6,845,738		$	9,738,618		$	743,876		$	(8,775,812	)	$	7,226,212
	LIABILITIES AND STOCKHOLDERS’
	(DEFICIT) EQUITY
	CURRENT LIABILITIES:
	Current portion of long-term debt		$	—		$	39,295		$	—		$	—		$	—		$	39,295
	Short-term borrowings - trade receivable securitization facility			—			—			—		$	200,000			—		$	200,000
	Accounts payable			—			13,179			84,556			26,314			(3,393	)		120,656
	Accrued liabilities			—			121,867			84,295			47,403			—			253,565
	Total current liabilities			—			174,341			168,851			273,717			(3,393	)		613,516
	LONG-TERM DEBT			—			7,299,262			—			—			—			7,299,262
	DEFERRED INCOME TAXES			—			483,670			—			(267	)		—			483,403
	OTHER NON-CURRENT LIABILITIES			—			80,643			38,697			36,899			—			156,239
	Total liabilities			—			8,037,916			207,548			310,349			(3,393	)		8,552,420
	STOCKHOLDERS’ (DEFICIT) EQUITY			(1,326,208	)		(1,192,178	)		9,531,070			433,527			(8,772,419	)		(1,326,208	)
	TOTAL LIABILITIES AND STOCKHOLDERS’ (DEFICIT) EQUITY		$	(1,326,208	)	$	6,845,738		$	9,738,618		$	743,876		$	(8,775,812	)	$	7,226,212
	TRANSDIGM GROUP INCORPORATED
	CONDENSED CONSOLIDATING BALANCE SHEET
	AS OF SEPTEMBER 30, 2014
	(Amounts in thousands)
			TransDigm			TransDigm			Subsidiary			Non-						Total
												Guarantor
			Group			Inc.			Guarantors			Subsidiaries			Eliminations			Consolidated
	ASSETS
	CURRENT ASSETS:
	Cash and cash equivalents		$	2,088		$	782,648		$	3,793		$	31,019		$	—		$	819,548
	Trade accounts receivable - Net			—			(305	)		1,711			351,881			(1,980	)		351,307
	Inventories - Net			—			32,287			382,016			45,471			(700	)		459,074
	Deferred income taxes			—			37,669			—			—			—			37,669
	Prepaid expenses and other			—			2,040			14,789			5,149			—			21,978
	Total current assets			2,088			854,339			402,309			433,520			(2,680	)		1,689,576
	INVESTMENT IN SUBSIDIARIES AND INTERCOMPANY BALANCES			(1,558,187	)		5,327,465			3,758,085			(59,788	)		(7,467,575	)		—
	PROPERTY, PLANT AND EQUIPMENT - Net			—			15,884			167,257			28,967			—			212,108
	GOODWILL			—			64,461			3,289,295			171,321			—			3,525,077
	TRADEMARKS AND TRADE NAMES			—			19,377			449,706			45,437			—			514,520
	OTHER INTANGIBLE ASSETS - Net			—			20,689			642,305			41,099			(1,460	)		702,633
	DEBT ISSUE COSTS - Net			—			92,155			—			238			—			92,393
	OTHER			—			7,845			11,754			942			—			20,541
	TOTAL ASSETS		$	(1,556,099	)	$	6,402,215		$	8,720,711		$	661,736		$	(7,471,715	)	$	6,756,848
	LIABILITIES AND STOCKHOLDERS’
(DEFICIT) EQUITY
CURRENT LIABILITIES:
Current portion of long-term debt		$	—		$	39,295		$	—		$	—		$	—		$	39,295
Short-term borrowings - trade receivable securitization facility			—			—			—			200,000			—			200,000
Accounts payable			—			17,629			85,328			14,768			(1,984	)		115,741
Accrued liabilities			—			106,631			98,308			25,932			—			230,871
Total current liabilities			—			163,555			183,636			240,700			(1,984	)		585,907
LONG-TERM DEBT			—			7,233,836			—			—			—			7,233,836
DEFERRED INCOME TAXES			—			402,538			—			(291	)		—			402,247
OTHER NON-CURRENT LIABILITIES			—			42,470			42,445			6,042			—			90,957
Total liabilities			—			7,842,399			226,081			246,451			(1,984	)		8,312,947
STOCKHOLDERS’ (DEFICIT) EQUITY			(1,556,099	)		(1,440,184	)		8,494,630			415,285			(7,469,731	)		(1,556,099	)
TOTAL LIABILITIES AND STOCKHOLDERS’ (DEFICIT) EQUITY		$	(1,556,099	)	$	6,402,215		$	8,720,711		$	661,736		$	(7,471,715	)	$	6,756,848
TRANSDIGM GROUP INCORPORATED
CONDENSED CONSOLIDATING STATEMENT OF INCOME AND COMPREHENSIVE INCOME
FOR THE TWENTY-SIX WEEK PERIOD ENDED MARCH 28, 2015
(Amounts in thousands)
		TransDigm			TransDigm			Subsidiary			Non-						Total
											Guarantor
		Group			Inc.			Guarantors			Subsidiaries			Eliminations			Consolidated
NET SALES		$	—		$	62,646		$	1,048,889		$	100,762		$	(6,369	)	$	1,205,928
COST OF SALES			—			37,365			445,207			66,935			(6,369	)		543,138
GROSS PROFIT			—			25,281			603,682			33,827			—			662,790
SELLING AND ADMINISTRATIVE EXPENSES			—			34,469			90,974			16,062			—			141,505
AMORTIZATION OF INTANGIBLE ASSETS			—			694			20,883			2,479			—			24,056
INCOME (LOSS) FROM OPERATIONS			—			(9,882	)		491,825			15,286			—			497,229
INTEREST EXPENSE - Net			—			204,309			15			(5,497	)		—			198,827
EQUITY IN INCOME OF SUBSIDIARIES			(206,427	)		(352,149	)		—			—			558,576			—
INCOME BEFORE INCOME TAXES			206,427			137,958			491,810			20,783			(558,576	)		298,402
INCOME TAX PROVISION (BENEFIT)			—			(68,469	)		154,777			5,667			—			91,975
NET INCOME		$	206,427		$	206,427		$	337,033		$	15,116		$	(558,576	)	$	206,427
OTHER COMPREHENSIVE (LOSS) INCOME, NET OF TAX			(59,237	)		(34,567	)		(700	)		(36,850	)		72,117			(59,237	)
TOTAL COMPREHENSIVE INCOME		$	147,190		$	171,860		$	336,333		$	(21,734	)	$	(486,459	)	$	147,190
TRANSDIGM GROUP INCORPORATED
CONDENSED CONSOLIDATING STATEMENT OF INCOME AND COMPREHENSIVE INCOME
FOR THE TWENTY-SIX WEEK PERIOD ENDED MARCH 29, 2014
(Amounts in thousands)
		TransDigm			TransDigm			Subsidiary			Non-						Total
											Guarantor
		Group			Inc.			Guarantors			Subsidiaries			Eliminations			Consolidated
NET SALES		$	—		$	59,065		$	975,281		$	90,395		$	(4,658	)	$	1,120,083
COST OF SALES			—			35,692			432,613			64,941			(4,881	)		528,365
GROSS PROFIT			—			23,373			542,668			25,454			223			591,718
SELLING AND ADMINISTRATIVE EXPENSES			—			29,740			84,867			14,008			—			128,615
AMORTIZATION OF INTANGIBLE ASSETS			—			694			31,118			2,171			—			33,983
INCOME (LOSS) FROM OPERATIONS			—			(7,061	)		426,683			9,275			223			429,120
INTEREST EXPENSE - Net			—			162,134			94			914			—			163,142
EQUITY IN INCOME OF SUBSIDIARIES			(176,478	)		(275,926	)		—			—			452,404			—
INCOME BEFORE INCOME TAXES			176,478			106,731			426,589			8,361			(452,181	)		265,978
INCOME TAX PROVISION (BENEFIT)			—			(69,747	)		153,204			6,043			—			89,500
NET INCOME		$	176,478		$	176,478		$	273,385		$	2,318		$	(452,181	)	$	176,478
OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX			5,885			(343	)		1,018			5,111			(5,786	)		5,885
TOTAL COMPREHENSIVE INCOME		$	182,363		$	176,135		$	274,403		$	7,429		$	(457,967	)	$	182,363
TRANSDIGM GROUP INCORPORATED
CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS
FOR THE TWENTY-SIX WEEK PERIOD ENDED MARCH 28, 2015
(Amounts in thousands)
		TransDigm			TransDigm			Subsidiary			Non-						Total
											Guarantor
		Group			Inc.			Guarantors			Subsidiaries			Eliminations			Consolidated
NET CASH (USED IN) PROVIDED BY
OPERATING ACTIVITIES		$	—		$	(72,472	)	$	268,461		$	(12,969	)	$	(104	)	$	182,916
INVESTING ACTIVITIES:
Capital expenditures			—			(976	)		(19,165	)		(2,858	)		—			(22,999	)
Acquisition of business, net of cash acquired			—			(723,200	)		—			—			—			(723,200	)
Net cash used in investing activities			—			(724,176	)		(19,165	)		(2,858	)		—			(746,199	)
FINANCING ACTIVITIES:
Intercompany activities			(141,146	)		372,995			(254,054	)		22,101			104			—
Excess tax benefits related to share-based payment arrangements			38,029			—			—			—			—			38,029
Proceeds from exercise of stock options			39,122			—			—			—			—			39,122
Dividends paid			(3,365	)		—			—			—			—			(3,365	)
Repayment of credit facility			(9,824	)		—												(9,824	)
Proceeds from credit revolver			75,250			—												75,250
Other			—			(41	)		—			—			—			(41	)
Net cash (used in) provided by financing activities			(1,934	)		372,954			(254,054	)		22,101			104			139,171
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS			—			—			—			(2,917	)		—			(2,917	)
(DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS			(1,934	)		(423,694	)		(4,758	)		3,357			—			(427,029	)
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD			2,088			782,648			3,793			31,019			—			819,548
CASH AND CASH EQUIVALENTS, END OF PERIOD		$	154		$	358,954		$	(965	)	$	34,376		$	—		$	392,519
TRANSDIGM GROUP INCORPORATED
CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS
FOR THE TWENTY-SIX WEEK PERIOD ENDED MARCH 29, 2014
(Amounts in thousands)
		TransDigm			TransDigm			Subsidiary			Non-						Total
											Guarantor
		Group			Inc.			Guarantors			Subsidiaries			Eliminations			Consolidated
NET CASH PROVIDED BY (USED IN)
OPERATING ACTIVITIES		$	—		$	(74,534	)	$	279,875		$	21,275		$	(6,128	)	$	220,488
INVESTING ACTIVITIES:
Capital expenditures			—			(1,573	)		(14,669	)		(1,467	)		—			(17,709	)
Cash proceeds from sale of real estate			—			—			16,380			—			—			16,380
Acquisition of business, net of cash acquired			—			(311,016	)		—			—			—			(311,016	)
Net cash (used in) provided by investing activities			—			(312,589	)		1,711			(1,467	)		—			(312,345	)
FINANCING ACTIVITIES:
Intercompany activities			(11,258	)		292,401			(289,119	)		(9,949	)		17,925			—
Excess tax benefits related to share-based payment arrangements			10,698			—			—			—			—			10,698
Proceeds from exercise of stock options			9,422			—			—			—			—			9,422
Dividends paid			(9,625	)		—			—			—			—			(9,625	)
Repayment on 2013 credit facility			—			(7,761	)		—			—			—			(7,761	)
Other			—			(78	)		—			—			—			(78	)
Net cash (used in) provided by financing activities			(763	)		284,562			(289,119	)		(9,949	)		17,925			2,656
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS			—			—			—			152			—			152
(DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS			(763	)		(102,561	)		(7,533	)		10,011			11,797			(89,049	)
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD			1,313			536,863			7,900			18,664			—			564,740
CASH AND CASH EQUIVALENTS, END OF PERIOD		$	550		$	434,302		$	367		$	28,675		$	11,797		$	475,691

ACQUISITIONS_Tables

ACQUISITIONS (Tables)	6 Months Ended
	Mar. 28, 2015
Purchase Price Allocation of Estimated Fair Value of Assets Acquired and Liabilities Assumed	The following table summarizes the purchase price allocation of the estimated fair values of the assets acquired and liabilities assumed at the transaction date (in thousands).
	Assets acquired:
	Current assets, excluding cash acquired	$	143,417
	Property, plant, and equipment		16,426
	Intangible assets		290,000
	Goodwill		439,946
	Other		1,445
	Total assets acquired	$	891,234
	Liabilities assumed:
	Current liabilities	$	46,708
	Other noncurrent liabilities		121,326
	Total liabilities assumed	$	168,034
	Net assets acquired	$	723,200

EARNINGS_PER_SHARE_TWOCLASS_ME1

EARNINGS PER SHARE (TWO-CLASS METHOD) (Tables)	6 Months Ended
	Mar. 28, 2015
Computation of Basic and Diluted Earnings Per Share	The following table sets forth the computation of basic and diluted earnings per share (in thousands, except per share data):
		Thirteen Week Periods Ended					Twenty-Six Week Periods Ended
		March 28,		March 29,			March 28,			March 29,
		2015		2014			2015			2014
								`
	Numerator for earnings per share:
	Net income	$	110,894	$	90,355		$	206,427		$	176,478
	Less dividends paid on participating securities		—		(5,486	)		(3,365	)		(9,625	)
	Net income applicable to common stock - basic and diluted	$	110,894	$	84,869		$	203,062		$	166,853
	Denominator for basic and diluted earnings per share under the two-class method:
	Weighted average common shares outstanding		52,915		52,803			52,721			52,745
	Vested options deemed participating securities		3,689		4,265			3,882			4,285
	Total shares for basic and diluted earnings per share		56,604		57,068			56,603			57,030
	Basic and diluted earnings per share	$	1.96	$	1.49		$	3.59		$	2.93

INVENTORIES_Tables

INVENTORIES (Tables)	6 Months Ended
	Mar. 28, 2015
Inventories	Inventories consist of the following (in thousands):
		March 28,			September 30,
		2015			2014
	Raw materials and purchased component parts	$	361,648		$	298,318
	Work-in-progress		164,478			146,980
	Finished Goods		88,484			69,658
	Total		614,610			514,956
	Reserves for excess and obsolete inventory and LIFO		(61,553	)		(55,882	)
	Inventories - net	$	553,057		$	459,074

INTANGIBLE_ASSETS_Tables

INTANGIBLE ASSETS (Tables)	6 Months Ended
	Mar. 28, 2015
Intangible Assets Subject to Amortization	Intangible assets subject to amortization consist of the following (in thousands):
		March 28, 2015							September 30, 2014
		Gross Carrying		Accumulated			Net		Gross Carrying			Accumulated		Net
		Amount		Amortization					Amount			Amortization
	Technology	$	1,011,400	$	207,289		$	804,111	$	854,918		$	186,278	$	668,640
	Order backlog		13,006		8,006			5,000		8,006			6,006		2,000
	Other		43,304		12,413			30,891		43,252			11,259		31,993
	Total	$	1,067,710	$	227,708		$	840,002	$	906,176		$	203,543	$	702,633
Intangible Assets Acquired	Intangible assets acquired during the twenty-six week period ended March 28, 2015 were as follows (in thousands):
		Cost		Amortization
				Period
	Intangible assets not subject to amortization:
	Goodwill	$	439,946
	Trademarks and trade names		125,000
			564,946
	Intangible assets subject to amortization:
	Technology		160,000		20 years
	Order backlog		5,000		1 year
			165,000		19.4 years
	Total	$	729,946
Summary of Changes in Carrying Value of Goodwill	The following is a summary of changes in the carrying value of goodwill by segment from September 30, 2014 through March 28, 2015 (in thousands):
		Power &		Airframe			Non-aviation		Total
		Control
	Balance, September 30, 2014	$	1,563,438	$	1,906,270		$	55,369	$	3,525,077
	Goodwill acquired during the year		406,706		33,240			—		439,946
	Purchase price allocation adjustments		—		(2,424	)		—		(2,424	)
	Other		—		(17,264	)		—		(17,264	)
	Balance, March 28, 2015	$	1,970,144	$	1,919,822		$	55,369	$	3,945,335

FAIR_VALUE_MEASUREMENTS_Tables

FAIR VALUE MEASUREMENTS (Tables)	6 Months Ended
	Mar. 28, 2015
Carrying Amounts and Fair Values of Financial Instruments	The following summarizes the carrying amounts and fair values of financial instruments (in thousands):
					March 28, 2015				September 30, 2014
			Level		Carrying		Fair Value		Carrying		Fair Value
					Amount				Amount
	Assets:
	Cash and cash equivalents			1	$	392,519	$	392,519	$	819,548	$	819,548
	Liabilities:
	Interest rate swap agreements (1)			2		22,770		22,770		20,070		20,070
	Interest rate swap agreements (2)			2		41,150		41,150		4,650		4,650
	Short-term borrowings - trade receivable securitization facility			1		200,000		200,000		200,000		200,000
	Long-term debt, including current portion:
	Term loans and revolving credit facility			2		3,938,557		3,933,000		3,873,131		3,821,000
	5 1/2% Senior Subordinated Notes due 2020 (2020 Notes)			1		550,000		542,000		550,000		529,000
	7 1/2% Senior Subordinated Notes due 2021 (2021 Notes)			1		500,000		535,000		500,000		531,000
	6% Senior Subordinated Notes due 2022 (2022 Notes)			1		1,150,000		1,150,000		1,150,000		1,121,000
	6 1/2% Senior Subordinated Notes due 2024 (2024 Notes)			1		1,200,000		1,203,000		1,200,000		1,182,000
	-1	Included in Accrued liabilities on the Condensed Consolidated Balance Sheet.
	-2	Included in Other non-current liabilities on the Condensed Consolidated Balance Sheet.

SEGMENTS_Tables

SEGMENTS (Tables)	6 Months Ended
	Mar. 28, 2015
Net Sales by Reportable Segment	The following table presents net sales by reportable segment (in thousands):
		Thirteen Week				Twenty-Six Week
		Periods Ended				Periods Ended
		March 28,		March 29,		March 28,		March 29,
		2015		2014		2015		2014
	Net sales to external customers
	Power & Control	$	292,220	$	283,546	$	575,599	$	557,596
	Airframe		302,956		283,129		584,570		514,953
	Non-aviation		23,854		24,086		45,759		47,534
		$	619,030	$	590,761	$	1,205,928	$	1,120,083
EBITDA Defined by Segment to Consolidated Income Before Taxes Operations	The following table reconciles EBITDA As Defined by segment to consolidated income before income taxes (in thousands):
		Thirteen Week				Twenty-Six Week
		Periods Ended				Periods Ended
		March 28,		March 29,		March 28,		March 29,
		2015		2014		2015		2014
	EBITDA As Defined
	Power & Control	$	149,670	$	140,780	$	295,798	$	277,738
	Airframe		139,271		122,833		265,092		229,329
	Non-aviation		5,141		5,047		9,879		10,152
	Total segment EBITDA As Defined		294,082		268,660		570,769		517,219
	Unallocated corporate expenses		6,013		5,692		12,972		10,694
	Total Company EBITDA As Defined		288,069		262,968		557,797		506,525
	Depreciation and amortization		19,061		25,881		40,846		49,720
	Interest expense - net		99,892		82,289		198,827		163,142
	Acquisition-related costs		4,617		10,435		6,128		15,352
	Stock compensation expense		7,830		8,158		13,594		12,333
	Income before income taxes	$	156,669	$	136,205	$	298,402	$	265,978
Total Assets by Segment	The following table presents total assets by segment (in thousands):
		March 28, 2015		September 30, 2014
	Total assets
	Power & Control	$	3,242,471	$	2,453,308
	Airframe		3,230,550		3,243,516
	Non-aviation		131,145		132,988
	Corporate		622,046		927,036
		$	7,226,212	$	6,756,848

SUPPLEMENTAL_GUARANTOR_INFORMA1

SUPPLEMENTAL GUARANTOR INFORMATION (Tables)	6 Months Ended
	Mar. 28, 2015
Supplemental Condensed Consolidating Balance Sheet	TRANSDIGM GROUP INCORPORATED
	CONDENSED CONSOLIDATING BALANCE SHEET
	AS OF MARCH 28, 2015
	(Amounts in thousands)
		TransDigm			TransDigm			Subsidiary			Non-						Total
											Guarantor
		Group			Inc.			Guarantors			Subsidiaries			Eliminations			Consolidated
	ASSETS
	CURRENT ASSETS:
	Cash and cash equivalents	$	154		$	358,954		$	(965	)	$	34,376		$	—		$	392,519
	Trade accounts receivable - Net		—			(235	)		24,467			398,689			(3,285	)		419,636
	Inventories - Net		—			35,136			427,596			91,025			(700	)		553,057
	Deferred income taxes		—			36,645			—			—			—			36,645
	Prepaid expenses and other		—			42,437			14,129			8,899			—			65,465
	Total current assets		154			472,937			465,227			532,989			(3,985	)		1,467,322
	INVESTMENT IN SUBSIDIARIES AND INTERCOMPANY BALANCES	$	(1,326,362	)	$	6,070,783		$	4,084,770		$	(58,824	)	$	(8,770,367	)	$	—
	PROPERTY, PLANT AND EQUIPMENT - Net		—			15,766			175,787			40,782			—			232,335
	GOODWILL		—			154,463			3,639,870			151,002			—			3,945,335
	TRADEMARKS AND TRADE NAMES		—			31,748			546,053			56,820			—			634,621
	OTHER INTANGIBLE ASSETS - Net		—			7,595			815,099			18,768			(1,460	)		840,002
	DEBT ISSUE COSTS - Net		—			84,413			—			73			—			84,486
	OTHER		—			8,033			11,812			2,266			—			22,111
	TOTAL ASSETS	$	(1,326,208	)	$	6,845,738		$	9,738,618		$	743,876		$	(8,775,812	)	$	7,226,212
	LIABILITIES AND STOCKHOLDERS’
	(DEFICIT) EQUITY
	CURRENT LIABILITIES:
	Current portion of long-term debt	$	—		$	39,295		$	—		$	—		$	—		$	39,295
	Short-term borrowings - trade receivable securitization facility		—			—			—		$	200,000			—		$	200,000
	Accounts payable		—			13,179			84,556			26,314			(3,393	)		120,656
	Accrued liabilities		—			121,867			84,295			47,403			—			253,565
	Total current liabilities		—			174,341			168,851			273,717			(3,393	)		613,516
	LONG-TERM DEBT		—			7,299,262			—			—			—			7,299,262
	DEFERRED INCOME TAXES		—			483,670			—			(267	)		—			483,403
	OTHER NON-CURRENT LIABILITIES		—			80,643			38,697			36,899			—			156,239
	Total liabilities		—			8,037,916			207,548			310,349			(3,393	)		8,552,420
	STOCKHOLDERS’ (DEFICIT) EQUITY		(1,326,208	)		(1,192,178	)		9,531,070			433,527			(8,772,419	)		(1,326,208	)
	TOTAL LIABILITIES AND STOCKHOLDERS’ (DEFICIT) EQUITY	$	(1,326,208	)	$	6,845,738		$	9,738,618		$	743,876		$	(8,775,812	)	$	7,226,212
	TRANSDIGM GROUP INCORPORATED
	CONDENSED CONSOLIDATING BALANCE SHEET
	AS OF SEPTEMBER 30, 2014
	(Amounts in thousands)
		TransDigm			TransDigm			Subsidiary			Non-						Total
											Guarantor
		Group			Inc.			Guarantors			Subsidiaries			Eliminations			Consolidated
	ASSETS
	CURRENT ASSETS:
	Cash and cash equivalents	$	2,088		$	782,648		$	3,793		$	31,019		$	—		$	819,548
	Trade accounts receivable - Net		—			(305	)		1,711			351,881			(1,980	)		351,307
	Inventories - Net		—			32,287			382,016			45,471			(700	)		459,074
	Deferred income taxes		—			37,669			—			—			—			37,669
	Prepaid expenses and other		—			2,040			14,789			5,149			—			21,978
	Total current assets		2,088			854,339			402,309			433,520			(2,680	)		1,689,576
	INVESTMENT IN SUBSIDIARIES AND INTERCOMPANY BALANCES		(1,558,187	)		5,327,465			3,758,085			(59,788	)		(7,467,575	)		—
	PROPERTY, PLANT AND EQUIPMENT - Net		—			15,884			167,257			28,967			—			212,108
	GOODWILL		—			64,461			3,289,295			171,321			—			3,525,077
	TRADEMARKS AND TRADE NAMES		—			19,377			449,706			45,437			—			514,520
	OTHER INTANGIBLE ASSETS - Net		—			20,689			642,305			41,099			(1,460	)		702,633
	DEBT ISSUE COSTS - Net		—			92,155			—			238			—			92,393
	OTHER		—			7,845			11,754			942			—			20,541
	TOTAL ASSETS	$	(1,556,099	)	$	6,402,215		$	8,720,711		$	661,736		$	(7,471,715	)	$	6,756,848
	LIABILITIES AND STOCKHOLDERS’
	(DEFICIT) EQUITY
	CURRENT LIABILITIES:
	Current portion of long-term debt	$	—		$	39,295		$	—		$	—		$	—		$	39,295
Short-term borrowings - trade receivable securitization facility		—			—			—			200,000			—			200,000
Accounts payable		—			17,629			85,328			14,768			(1,984	)		115,741
Accrued liabilities		—			106,631			98,308			25,932			—			230,871
Total current liabilities		—			163,555			183,636			240,700			(1,984	)		585,907
LONG-TERM DEBT		—			7,233,836			—			—			—			7,233,836
DEFERRED INCOME TAXES		—			402,538			—			(291	)		—			402,247
OTHER NON-CURRENT LIABILITIES		—			42,470			42,445			6,042			—			90,957
Total liabilities		—			7,842,399			226,081			246,451			(1,984	)		8,312,947
STOCKHOLDERS’ (DEFICIT) EQUITY		(1,556,099	)		(1,440,184	)		8,494,630			415,285			(7,469,731	)		(1,556,099	)
TOTAL LIABILITIES AND STOCKHOLDERS’ (DEFICIT) EQUITY	$	(1,556,099	)	$	6,402,215		$	8,720,711		$	661,736		$	(7,471,715	)	$	6,756,848
Supplemental Condensed Consolidating Statement of Income and Comprehensive Income	TRANSDIGM GROUP INCORPORATED
	CONDENSED CONSOLIDATING STATEMENT OF INCOME AND COMPREHENSIVE INCOME
	FOR THE TWENTY-SIX WEEK PERIOD ENDED MARCH 28, 2015
	(Amounts in thousands)
		TransDigm			TransDigm			Subsidiary			Non-						Total
											Guarantor
		Group			Inc.			Guarantors			Subsidiaries			Eliminations			Consolidated
	NET SALES	$	—		$	62,646		$	1,048,889		$	100,762		$	(6,369	)	$	1,205,928
	COST OF SALES		—			37,365			445,207			66,935			(6,369	)		543,138
	GROSS PROFIT		—			25,281			603,682			33,827			—			662,790
	SELLING AND ADMINISTRATIVE EXPENSES		—			34,469			90,974			16,062			—			141,505
	AMORTIZATION OF INTANGIBLE ASSETS		—			694			20,883			2,479			—			24,056
	INCOME (LOSS) FROM OPERATIONS		—			(9,882	)		491,825			15,286			—			497,229
	INTEREST EXPENSE - Net		—			204,309			15			(5,497	)		—			198,827
	EQUITY IN INCOME OF SUBSIDIARIES		(206,427	)		(352,149	)		—			—			558,576			—
	INCOME BEFORE INCOME TAXES		206,427			137,958			491,810			20,783			(558,576	)		298,402
	INCOME TAX PROVISION (BENEFIT)		—			(68,469	)		154,777			5,667			—			91,975
	NET INCOME	$	206,427		$	206,427		$	337,033		$	15,116		$	(558,576	)	$	206,427
	OTHER COMPREHENSIVE (LOSS) INCOME, NET OF TAX		(59,237	)		(34,567	)		(700	)		(36,850	)		72,117			(59,237	)
	TOTAL COMPREHENSIVE INCOME	$	147,190		$	171,860		$	336,333		$	(21,734	)	$	(486,459	)	$	147,190
	TRANSDIGM GROUP INCORPORATED
	CONDENSED CONSOLIDATING STATEMENT OF INCOME AND COMPREHENSIVE INCOME
	FOR THE TWENTY-SIX WEEK PERIOD ENDED MARCH 29, 2014
	(Amounts in thousands)
		TransDigm			TransDigm			Subsidiary			Non-						Total
											Guarantor
		Group			Inc.			Guarantors			Subsidiaries			Eliminations			Consolidated
	NET SALES	$	—		$	59,065		$	975,281		$	90,395		$	(4,658	)	$	1,120,083
	COST OF SALES		—			35,692			432,613			64,941			(4,881	)		528,365
	GROSS PROFIT		—			23,373			542,668			25,454			223			591,718
	SELLING AND ADMINISTRATIVE EXPENSES		—			29,740			84,867			14,008			—			128,615
	AMORTIZATION OF INTANGIBLE ASSETS		—			694			31,118			2,171			—			33,983
	INCOME (LOSS) FROM OPERATIONS		—			(7,061	)		426,683			9,275			223			429,120
	INTEREST EXPENSE - Net		—			162,134			94			914			—			163,142
	EQUITY IN INCOME OF SUBSIDIARIES		(176,478	)		(275,926	)		—			—			452,404			—
	INCOME BEFORE INCOME TAXES		176,478			106,731			426,589			8,361			(452,181	)		265,978
	INCOME TAX PROVISION (BENEFIT)		—			(69,747	)		153,204			6,043			—			89,500
	NET INCOME	$	176,478		$	176,478		$	273,385		$	2,318		$	(452,181	)	$	176,478
	OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX		5,885			(343	)		1,018			5,111			(5,786	)		5,885
	TOTAL COMPREHENSIVE INCOME	$	182,363		$	176,135		$	274,403		$	7,429		$	(457,967	)	$	182,363
Supplemental Condensed Consolidating Statement of Cash Flows	TRANSDIGM GROUP INCORPORATED
	CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS
	FOR THE TWENTY-SIX WEEK PERIOD ENDED MARCH 28, 2015
	(Amounts in thousands)
		TransDigm			TransDigm			Subsidiary			Non-						Total
											Guarantor
		Group			Inc.			Guarantors			Subsidiaries			Eliminations			Consolidated
	NET CASH (USED IN) PROVIDED BY
	OPERATING ACTIVITIES	$	—		$	(72,472	)	$	268,461		$	(12,969	)	$	(104	)	$	182,916
	INVESTING ACTIVITIES:
	Capital expenditures		—			(976	)		(19,165	)		(2,858	)		—			(22,999	)
	Acquisition of business, net of cash acquired		—			(723,200	)		—			—			—			(723,200	)
	Net cash used in investing activities		—			(724,176	)		(19,165	)		(2,858	)		—			(746,199	)
	FINANCING ACTIVITIES:
	Intercompany activities		(141,146	)		372,995			(254,054	)		22,101			104			—
	Excess tax benefits related to share-based payment arrangements		38,029			—			—			—			—			38,029
	Proceeds from exercise of stock options		39,122			—			—			—			—			39,122
	Dividends paid		(3,365	)		—			—			—			—			(3,365	)
	Repayment of credit facility		(9,824	)		—												(9,824	)
	Proceeds from credit revolver		75,250			—												75,250
	Other		—			(41	)		—			—			—			(41	)
	Net cash (used in) provided by financing activities		(1,934	)		372,954			(254,054	)		22,101			104			139,171
	EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS		—			—			—			(2,917	)		—			(2,917	)
	(DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS		(1,934	)		(423,694	)		(4,758	)		3,357			—			(427,029	)
	CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD		2,088			782,648			3,793			31,019			—			819,548
	CASH AND CASH EQUIVALENTS, END OF PERIOD	$	154		$	358,954		$	(965	)	$	34,376		$	—		$	392,519
	TRANSDIGM GROUP INCORPORATED
	CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS
	FOR THE TWENTY-SIX WEEK PERIOD ENDED MARCH 29, 2014
	(Amounts in thousands)
		TransDigm			TransDigm			Subsidiary			Non-						Total
											Guarantor
		Group			Inc.			Guarantors			Subsidiaries			Eliminations			Consolidated
	NET CASH PROVIDED BY (USED IN)
	OPERATING ACTIVITIES	$	—		$	(74,534	)	$	279,875		$	21,275		$	(6,128	)	$	220,488
	INVESTING ACTIVITIES:
	Capital expenditures		—			(1,573	)		(14,669	)		(1,467	)		—			(17,709	)
	Cash proceeds from sale of real estate		—			—			16,380			—			—			16,380
	Acquisition of business, net of cash acquired		—			(311,016	)		—			—			—			(311,016	)
	Net cash (used in) provided by investing activities		—			(312,589	)		1,711			(1,467	)		—			(312,345	)
	FINANCING ACTIVITIES:
	Intercompany activities		(11,258	)		292,401			(289,119	)		(9,949	)		17,925			—
	Excess tax benefits related to share-based payment arrangements		10,698			—			—			—			—			10,698
	Proceeds from exercise of stock options		9,422			—			—			—			—			9,422
	Dividends paid		(9,625	)		—			—			—			—			(9,625	)
	Repayment on 2013 credit facility		—			(7,761	)		—			—			—			(7,761	)
	Other		—			(78	)		—			—			—			(78	)
	Net cash (used in) provided by financing activities		(763	)		284,562			(289,119	)		(9,949	)		17,925			2,656
	EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS		—			—			—			152			—			152
	(DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS		(763	)		(102,561	)		(7,533	)		10,011			11,797			(89,049	)
	CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD		1,313			536,863			7,900			18,664			—			564,740
	CASH AND CASH EQUIVALENTS, END OF PERIOD	$	550		$	434,302		$	367		$	28,675		$	11,797		$	475,691

Description_of_The_Business_Ad

Description of The Business - Additional Information (Detail)	Mar. 28, 2015
Nature Of Business [Line Items]
Percentage of ownership in subsidiary	100.00%

Acquisitions_Additional_Inform

Acquisitions - Additional Information (Detail) (USD $)	6 Months Ended	0 Months Ended		3 Months Ended	0 Months Ended
	Mar. 28, 2015	Mar. 06, 2014	Dec. 19, 2013	Mar. 29, 2014	Mar. 26, 2015	Sep. 30, 2014
Business Acquisition [Line Items]
GOODWILL	3,945,335,000					$3,525,077,000
Minimum
Business Acquisition [Line Items]
Estimated useful life of aircraft (in years)	25 years
Maximum
Business Acquisition [Line Items]
Estimated useful life of aircraft (in years)	30 years
Elektro-Metall Export GmbH
Business Acquisition [Line Items]
Cash consideration paid to acquire business		40,400,000
GOODWILL		20,300,000
Business acquisition cost		49,600,000
Business acquisition, assumption of net indebtedness		9,200,000
Airborne Systems Inc
Business Acquisition [Line Items]
Cash consideration paid to acquire business			264,200,000
GOODWILL			155,900,000
Business acquisition, purchase price adjustment				300,000
Telair Cargo Group
Business Acquisition [Line Items]
Cash consideration paid to acquire business					730,900,000
GOODWILL					439,946,000
Business acquisition, assumption of net indebtedness					168,034,000
Telair Cargo Group | Revolving credit facility
Business Acquisition [Line Items]
Borrowing under revolving credit facility					$75,000,000

Purchase_Price_Allocation_of_E

Purchase Price Allocation of Estimated Fair Value of Assets Acquired and Liabilities Assumed (Detail) (USD $)	Mar. 28, 2015	Sep. 30, 2014	Mar. 26, 2015
In Thousands, unless otherwise specified
Assets acquired:
GOODWILL	$3,945,335	$3,525,077
Telair Cargo Group
Assets acquired:
Current assets, excluding cash acquired			143,417
Property, plant, and equipment			16,426
Intangible assets			290,000
GOODWILL			439,946
Other			1,445
Total assets acquired			891,234
Liabilities assumed:
Current liabilities			46,708
Other noncurrent liabilities			121,326
Total liabilities assumed			168,034
Net assets acquired			$723,200

Computation_of_Basic_and_Dilut

Computation of Basic and Diluted Earnings Per Share (Detail) (USD $)	3 Months Ended		6 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Mar. 28, 2015	Mar. 29, 2014	Mar. 28, 2015	Mar. 29, 2014
Numerator for earnings per share:
Net income	$110,894	$90,355	$206,427	$176,478
Less dividends paid on participating securities		-5,486	-3,365	-9,625
Net income applicable to common stock - basic and diluted	$110,894	$84,869	$203,062	$166,853
Denominator for basic and diluted earnings per share under the two-class method:
Weighted average common shares outstanding	52,915	52,803	52,721	52,745
Vested options deemed participating securities	3,689	4,265	3,882	4,285
Total shares for basic and diluted earnings per share	56,604	57,068	56,603	57,030
Basic and diluted earnings per share	$1.96	$1.49	$3.59	$2.93

Inventories_Additional_Informa

Inventories - Additional Information (Detail) (Maximum)	Mar. 28, 2015
Maximum
Inventory [Line Items]
Percentage of inventory valued under LIFO method	3.00%

Inventories_Detail

Inventories (Detail) (USD $)	Mar. 28, 2015	Sep. 30, 2014
In Thousands, unless otherwise specified
Inventory [Line Items]
Raw materials and purchased component parts	$361,648	$298,318
Work-in-progress	164,478	146,980
Finished Goods	88,484	69,658
Total	614,610	514,956
Reserves for excess and obsolete inventory and LIFO	-61,553	-55,882
Inventories - net	$553,057	$459,074

Intangible_Assets_Subject_to_A

Intangible Assets Subject to Amortization (Detail) (USD $)	Mar. 28, 2015	Sep. 30, 2014
In Thousands, unless otherwise specified
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$1,067,710	$906,176
Accumulated Amortization	227,708	203,543
Net	840,002	702,633
Technology
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,011,400	854,918
Accumulated Amortization	207,289	186,278
Net	804,111	668,640
Order backlog
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	13,006	8,006
Accumulated Amortization	8,006	6,006
Net	5,000	2,000
Other intangible assets
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	43,304	43,252
Accumulated Amortization	12,413	11,259
Net	$30,891	$31,993

Intangible_Assets_Acquired_Det

Intangible Assets Acquired (Detail) (USD $)	6 Months Ended
In Thousands, unless otherwise specified	Mar. 28, 2015
Acquired Finite-Lived Intangible Assets [Line Items]
Goodwill	$439,946
Intangible assets not subject to amortization	564,946
Intangible assets subject to amortization	165,000
Total - Intangible assets both subject to and not subject to amortization	729,946
Amortization Period (in years)	19 years 4 months 24 days
Trademarks and trade names
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets not subject to amortization	125,000
Technology
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets subject to amortization	160,000
Amortization Period (in years)	20 years
Order backlog
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets subject to amortization	$5,000
Amortization Period (in years)	1 year

Intangible_Assets_Additional_I

Intangible Assets - Additional Information (Detail) (USD $)	6 Months Ended
	Mar. 28, 2015	Mar. 29, 2014
Schedule of Intangible Assets Disclosure [Line Items]
Aggregate amortization expense	$24,499,000	$34,090,000
Estimated Amortization Expense, 2015	52,700,000
Estimated Amortization Expense, 2016	50,700,000
Estimated Amortization Expense, 2017	48,200,000
Estimated Amortization Expense, 2018	48,200,000
Estimated Amortization Expense, 2019	48,200,000
Estimated Amortization Expense, 2020	$48,200,000

Summary_of_Changes_in_Carrying

Summary of Changes in Carrying Value of Goodwill (Detail) (USD $)	6 Months Ended
In Thousands, unless otherwise specified	Mar. 28, 2015	Sep. 30, 2014
Goodwill [Line Items]
Goodwill, Beginning Balance	$3,525,077
Goodwill acquired during the year	439,946
Purchase price allocation adjustments	-2,424
Other	-17,264
Goodwill, Ending Balance	3,945,335
Power & Control
Goodwill [Line Items]
Goodwill, Beginning Balance	1,563,438
Goodwill acquired during the year	406,706
Goodwill, Ending Balance	1,970,144
Airframe
Goodwill [Line Items]
Goodwill, Beginning Balance	1,906,270
Goodwill acquired during the year	33,240
Purchase price allocation adjustments	-2,424
Other	-17,264
Goodwill, Ending Balance	1,919,822
Non-aviation
Goodwill [Line Items]
Goodwill, Beginning Balance		55,369
Goodwill, Ending Balance	$55,369	$55,369

Income_Taxes_Additional_Inform

Income Taxes - Additional Information (Detail) (USD $)	3 Months Ended		6 Months Ended
In Millions, unless otherwise specified	Mar. 28, 2015	Mar. 29, 2014	Mar. 28, 2015	Mar. 29, 2014	Sep. 30, 2014
Income Tax Contingency [Line Items]
Effective income tax rate	29.20%	33.70%	30.80%	33.60%
Unrecognized tax benefit	$10.80		$10.80		$13.90
Effect of unrecognized tax benefits on effective tax rate	9		9		13.5
Unrecognized Tax Benefits, Period Increase (Decrease) over the next 12 months	$3.50		$3.50
Earliest Tax Year
Income Tax Contingency [Line Items]
Tax year under examination			2012
Latest Tax Year
Income Tax Contingency [Line Items]
Tax year under examination			2013

Carrying_Amounts_and_Fair_Valu

Carrying Amounts and Fair Values of Financial Instruments (Detail) (USD $)	Mar. 28, 2015		Sep. 30, 2014		Mar. 29, 2014	Sep. 30, 2013
In Thousands, unless otherwise specified
Carrying Amounts and Fair Values of Financial Instruments [Line Items]
Cash and cash equivalents, Assets, Carrying Amount	$392,519		$819,548		$475,691	$564,740
Short-term borrowings - trade receivable securitization facility, Carrying Amount	200,000		200,000
Accrued Liabilities
Carrying Amounts and Fair Values of Financial Instruments [Line Items]
Interest rate swap agreements, Liabilities, Carrying Amount	22,770	[1]	20,070	[1]
Other Non-Current Liabilities
Carrying Amounts and Fair Values of Financial Instruments [Line Items]
Interest rate swap agreements, Liabilities, Carrying Amount	41,150	[2]	4,650	[2]
Term Loan and Revolving Credit Facility
Carrying Amounts and Fair Values of Financial Instruments [Line Items]
Long-term debt, Carrying Amount	3,938,557		3,873,131
5 1/2% Senior Subordinated Notes, Due 2020
Carrying Amounts and Fair Values of Financial Instruments [Line Items]
Long-term debt, Carrying Amount	550,000		550,000
7 1/2% Senior Subordinated Notes, Due 2021
Carrying Amounts and Fair Values of Financial Instruments [Line Items]
Long-term debt, Carrying Amount	500,000		500,000
6.00% Senior Subordinated Notes, Due 2022
Carrying Amounts and Fair Values of Financial Instruments [Line Items]
Long-term debt, Carrying Amount	1,150,000		1,150,000
6 1/2% Senior Subordinated Notes, Due 2024
Carrying Amounts and Fair Values of Financial Instruments [Line Items]
Long-term debt, Carrying Amount	1,200,000		1,200,000
Level 1
Carrying Amounts and Fair Values of Financial Instruments [Line Items]
Cash and cash equivalents, Assets, Fair Value	392,519		819,548
Short-term borrowings - trade receivable securitization facility, Fair Value	200,000		200,000
Level 1 | 5 1/2% Senior Subordinated Notes, Due 2020
Carrying Amounts and Fair Values of Financial Instruments [Line Items]
Long-term debt, Fair Value	542,000		529,000
Level 1 | 7 1/2% Senior Subordinated Notes, Due 2021
Carrying Amounts and Fair Values of Financial Instruments [Line Items]
Long-term debt, Fair Value	535,000		531,000
Level 1 | 6.00% Senior Subordinated Notes, Due 2022
Carrying Amounts and Fair Values of Financial Instruments [Line Items]
Long-term debt, Fair Value	1,150,000		1,121,000
Level 1 | 6 1/2% Senior Subordinated Notes, Due 2024
Carrying Amounts and Fair Values of Financial Instruments [Line Items]
Long-term debt, Fair Value	1,203,000		1,182,000
Level 2 | Accrued Liabilities
Carrying Amounts and Fair Values of Financial Instruments [Line Items]
Interest rate swap agreements, Liabilities, Fair Value	22,770	[1]	20,070	[1]
Level 2 | Other Non-Current Liabilities
Carrying Amounts and Fair Values of Financial Instruments [Line Items]
Interest rate swap agreements, Liabilities, Fair Value	41,150	[2]	4,650	[2]
Level 2 | Term Loan and Revolving Credit Facility
Carrying Amounts and Fair Values of Financial Instruments [Line Items]
Long-term debt, Fair Value	$3,933,000		$3,821,000
[1]	Included in Accrued liabilities on the Condensed Consolidated Balance Sheet.
[2]	Included in Other non-current liabilities on the Condensed Consolidated Balance Sheet.

Fair_Value_Measurements_Additi

Fair Value Measurements - Additional Information (Detail)	6 Months Ended
	Mar. 28, 2015
5 1/2% Senior Subordinated Notes, Due 2020
Carrying Amounts and Fair Values of Financial Instruments [Line Items]
Senior subordinate note, due date	2020
7 1/2% Senior Subordinated Notes, Due 2021
Carrying Amounts and Fair Values of Financial Instruments [Line Items]
Senior subordinate note, due date	2021
6.00% Senior Subordinated Notes, Due 2022
Carrying Amounts and Fair Values of Financial Instruments [Line Items]
Senior subordinate note, due date	2022
6 1/2% Senior Subordinated Notes, Due 2024
Carrying Amounts and Fair Values of Financial Instruments [Line Items]
Senior subordinate note, due date	2024

Recovered_Sheet1

Derivatives and Hedging Activities - Additional Information (Detail) (USD $)	6 Months Ended
	Mar. 28, 2015
Derivative [Line Items]
Derivative loss to be recognized	$17,300,000
Forward-starting interest rate swap agreements beginning March 31, 2016
Derivative [Line Items]
Number of interest rate swap agreements	5
Interest rate swap, notional amount	750,000,000
Fixed rate of interest under interest rate swap	5.80%
Variable interest rate	2.80%
Basis spread on variable rate	3.00%
Interest rate swap agreements beginning September 30, 2014
Derivative [Line Items]
Number of interest rate swap agreements	3
Interest rate swap, notional amount	1,000,000,000
Fixed rate of interest under interest rate swap	5.40%
Variable interest rate	2.40%
Basis spread on variable rate	3.00%
Interest rate swap agreements to swap variable rates on the credit facility for a fixed rate
Derivative [Line Items]
Number of interest rate swap agreements	3
Interest rate swap, notional amount	$353,000,000
Fixed rate of interest under interest rate swap	5.17%
Variable interest rate	2.17%
Basis spread on variable rate	3.00%

Segment_Information_Additional

Segment Information - Additional Information (Detail)	6 Months Ended
	Mar. 28, 2015
	Segment
Segment Reporting Information [Line Items]
Number of reporting segments	3

Net_Sales_by_Reportable_Segmen

Net Sales by Reportable Segment (Detail) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Mar. 28, 2015	Mar. 29, 2014	Mar. 28, 2015	Mar. 29, 2014
Segment Reporting Information [Line Items]
NET SALES	$619,030	$590,761	$1,205,928	$1,120,083
Operating Segments | Power & Control
Segment Reporting Information [Line Items]
NET SALES	292,220	283,546	575,599	557,596
Operating Segments | Airframe
Segment Reporting Information [Line Items]
NET SALES	302,956	283,129	584,570	514,953
Operating Segments | Non-aviation
Segment Reporting Information [Line Items]
NET SALES	$23,854	$24,086	$45,759	$47,534

EBITDA_Defined_by_Segment_to_C

EBITDA Defined by Segment to Consolidated Income Before Taxes Operations (Detail) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Mar. 28, 2015	Mar. 29, 2014	Mar. 28, 2015	Mar. 29, 2014
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Earnings before interest taxes depreciation and amortization	$288,069	$262,968	$557,797	$506,525
Depreciation and amortization	19,061	25,881	40,846	49,720
Interest expense-net	99,892	82,289	198,827	163,142
Acquisition-related costs	4,617	10,435	6,128	15,352
Stock compensation expense	7,830	8,158	13,594	12,333
INCOME BEFORE INCOME TAXES	156,669	136,205	298,402	265,978
Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Earnings before interest taxes depreciation and amortization	294,082	268,660	570,769	517,219
Operating Segments | Power & Control
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Earnings before interest taxes depreciation and amortization	149,670	140,780	295,798	277,738
Operating Segments | Airframe
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Earnings before interest taxes depreciation and amortization	139,271	122,833	265,092	229,329
Operating Segments | Non-aviation
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Earnings before interest taxes depreciation and amortization	5,141	5,047	9,879	10,152
Corporate, Non-Segment
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Earnings before interest taxes depreciation and amortization	$6,013	$5,692	$12,972	$10,694

Total_Assets_by_Segment_Detail

Total Assets by Segment (Detail) (USD $)	Mar. 28, 2015	Sep. 30, 2014
In Thousands, unless otherwise specified
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$7,226,212	$6,756,848
Operating Segments | Power & Control
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	3,242,471	2,453,308
Operating Segments | Airframe
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	3,230,550	3,243,516
Operating Segments | Non-aviation
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	131,145	132,988
Corporate, Non-Segment
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$622,046	$927,036

Subsequent_Events_Additional_I

Subsequent Events - Additional Information (Detail) (Subsequent Event, USD $)	0 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Apr. 30, 2015
Adams Rite Aerospace GmbH
Subsequent Event [Line Items]
Cash consideration paid to acquire business	$75
Pexco Aerospace
Subsequent Event [Line Items]
Cash consideration paid to acquire business		496
Business combination, tax benefits to be realized		$160
Business combination, tax benefit period		15 years

Recovered_Sheet2

Supplemental Guarantor Information - Additional Information (Detail)	Mar. 28, 2015
Supplemental Guarantor Information [Line Items]
Percentage of ownership in subsidiary	100.00%

Supplemental_Condensed_Consoli

Supplemental Condensed Consolidating Balance Sheet (Detail) (USD $)	Mar. 28, 2015	Sep. 30, 2014	Mar. 29, 2014	Sep. 30, 2013
In Thousands, unless otherwise specified
Supplemental Guarantor Information [Line Items]
Cash and cash equivalents	$392,519	$819,548	$475,691	$564,740
Trade accounts receivable - Net	419,636	351,307
Inventories - Net	553,057	459,074
Deferred income taxes	36,645	37,669
Prepaid expenses and other	65,465	21,978
Total current assets	1,467,322	1,689,576
PROPERTY, PLANT AND EQUIPMENT - Net	232,335	212,108
GOODWILL	3,945,335	3,525,077
TRADEMARKS AND TRADE NAMES	634,621	514,520
OTHER INTANGIBLE ASSETS - Net	840,002	702,633
DEBT ISSUE COSTS - Net	84,486	92,393
OTHER	22,111	20,541
TOTAL ASSETS	7,226,212	6,756,848
Current portion of long-term debt	39,295	39,295
Short-term borrowings - trade receivable securitization facility	200,000	200,000
Accounts payable	120,656	115,741
Accrued liabilities	253,565	230,871
Total current liabilities	613,516	585,907
LONG-TERM DEBT	7,299,262	7,233,836
DEFERRED INCOME TAXES	483,403	402,247
OTHER NON-CURRENT LIABILITIES	156,239	90,957
Total liabilities	8,552,420	8,312,947
STOCKHOLDERS' (DEFICIT) EQUITY	-1,326,208	-1,556,099
TOTAL LIABILITIES AND STOCKHOLDERS' (DEFICIT) EQUITY	7,226,212	6,756,848
TransDigm Group
Supplemental Guarantor Information [Line Items]
Cash and cash equivalents	154	2,088	550	1,313
Total current assets	154	2,088
INVESTMENT IN SUBSIDIARIES AND INTERCOMPANY BALANCES	-1,326,362	-1,558,187
TOTAL ASSETS	-1,326,208	-1,556,099
STOCKHOLDERS' (DEFICIT) EQUITY	-1,326,208	-1,556,099
TOTAL LIABILITIES AND STOCKHOLDERS' (DEFICIT) EQUITY	-1,326,208	-1,556,099
TransDigm Inc.
Supplemental Guarantor Information [Line Items]
Cash and cash equivalents	358,954	782,648	434,302	536,863
Trade accounts receivable - Net	-235	-305
Inventories - Net	35,136	32,287
Deferred income taxes	36,645	37,669
Prepaid expenses and other	42,437	2,040
Total current assets	472,937	854,339
INVESTMENT IN SUBSIDIARIES AND INTERCOMPANY BALANCES	6,070,783	5,327,465
PROPERTY, PLANT AND EQUIPMENT - Net	15,766	15,884
GOODWILL	154,463	64,461
TRADEMARKS AND TRADE NAMES	31,748	19,377
OTHER INTANGIBLE ASSETS - Net	7,595	20,689
DEBT ISSUE COSTS - Net	84,413	92,155
OTHER	8,033	7,845
TOTAL ASSETS	6,845,738	6,402,215
Current portion of long-term debt	39,295	39,295
Accounts payable	13,179	17,629
Accrued liabilities	121,867	106,631
Total current liabilities	174,341	163,555
LONG-TERM DEBT	7,299,262	7,233,836
DEFERRED INCOME TAXES	483,670	402,538
OTHER NON-CURRENT LIABILITIES	80,643	42,470
Total liabilities	8,037,916	7,842,399
STOCKHOLDERS' (DEFICIT) EQUITY	-1,192,178	-1,440,184
TOTAL LIABILITIES AND STOCKHOLDERS' (DEFICIT) EQUITY	6,845,738	6,402,215
Subsidiary Guarantors
Supplemental Guarantor Information [Line Items]
Cash and cash equivalents	-965	3,793	367	7,900
Trade accounts receivable - Net	24,467	1,711
Inventories - Net	427,596	382,016
Prepaid expenses and other	14,129	14,789
Total current assets	465,227	402,309
INVESTMENT IN SUBSIDIARIES AND INTERCOMPANY BALANCES	4,084,770	3,758,085
PROPERTY, PLANT AND EQUIPMENT - Net	175,787	167,257
GOODWILL	3,639,870	3,289,295
TRADEMARKS AND TRADE NAMES	546,053	449,706
OTHER INTANGIBLE ASSETS - Net	815,099	642,305
OTHER	11,812	11,754
TOTAL ASSETS	9,738,618	8,720,711
Accounts payable	84,556	85,328
Accrued liabilities	84,295	98,308
Total current liabilities	168,851	183,636
OTHER NON-CURRENT LIABILITIES	38,697	42,445
Total liabilities	207,548	226,081
STOCKHOLDERS' (DEFICIT) EQUITY	9,531,070	8,494,630
TOTAL LIABILITIES AND STOCKHOLDERS' (DEFICIT) EQUITY	9,738,618	8,720,711
Non-Guarantor Subsidiaries
Supplemental Guarantor Information [Line Items]
Cash and cash equivalents	34,376	31,019	28,675	18,664
Trade accounts receivable - Net	398,689	351,881
Inventories - Net	91,025	45,471
Prepaid expenses and other	8,899	5,149
Total current assets	532,989	433,520
INVESTMENT IN SUBSIDIARIES AND INTERCOMPANY BALANCES	-58,824	-59,788
PROPERTY, PLANT AND EQUIPMENT - Net	40,782	28,967
GOODWILL	151,002	171,321
TRADEMARKS AND TRADE NAMES	56,820	45,437
OTHER INTANGIBLE ASSETS - Net	18,768	41,099
DEBT ISSUE COSTS - Net	73	238
OTHER	2,266	942
TOTAL ASSETS	743,876	661,736
Short-term borrowings - trade receivable securitization facility	200,000	200,000
Accounts payable	26,314	14,768
Accrued liabilities	47,403	25,932
Total current liabilities	273,717	240,700
DEFERRED INCOME TAXES	-267	-291
OTHER NON-CURRENT LIABILITIES	36,899	6,042
Total liabilities	310,349	246,451
STOCKHOLDERS' (DEFICIT) EQUITY	433,527	415,285
TOTAL LIABILITIES AND STOCKHOLDERS' (DEFICIT) EQUITY	743,876	661,736
Eliminations
Supplemental Guarantor Information [Line Items]
Cash and cash equivalents			11,797
Trade accounts receivable - Net	-3,285	-1,980
Inventories - Net	-700	-700
Total current assets	-3,985	-2,680
INVESTMENT IN SUBSIDIARIES AND INTERCOMPANY BALANCES	-8,770,367	-7,467,575
OTHER INTANGIBLE ASSETS - Net	-1,460	-1,460
TOTAL ASSETS	-8,775,812	-7,471,715
Accounts payable	-3,393	-1,984
Total current liabilities	-3,393	-1,984
Total liabilities	-3,393	-1,984
STOCKHOLDERS' (DEFICIT) EQUITY	-8,772,419	-7,469,731
TOTAL LIABILITIES AND STOCKHOLDERS' (DEFICIT) EQUITY	($8,775,812)	($7,471,715)

Supplemental_Condensed_Consoli1

Supplemental Condensed Consolidating Statement of Income and Comprehensive Income (Detail) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Mar. 28, 2015	Mar. 29, 2014	Mar. 28, 2015	Mar. 29, 2014
Supplemental Guarantor Information [Line Items]
NET SALES	$619,030	$590,761	$1,205,928	$1,120,083
COST OF SALES	277,413	283,179	543,138	528,365
GROSS PROFIT	341,617	307,582	662,790	591,718
SELLING AND ADMINISTRATIVE EXPENSES	74,026	71,488	141,505	128,615
AMORTIZATION OF INTANGIBLE ASSETS	11,030	17,600	24,056	33,983
INCOME (LOSS) FROM OPERATIONS	256,561	218,494	497,229	429,120
INTEREST EXPENSE - Net	99,892	82,289	198,827	163,142
INCOME BEFORE INCOME TAXES	156,669	136,205	298,402	265,978
INCOME TAX PROVISION (BENEFIT)	45,775	45,850	91,975	89,500
Net income	110,894	90,355	206,427	176,478
OTHER COMPREHENSIVE (LOSS) INCOME, NET OF TAX	-38,001	-826	-59,237	5,885
TOTAL COMPREHENSIVE INCOME	72,893	89,529	147,190	182,363
TransDigm Group
Supplemental Guarantor Information [Line Items]
EQUITY IN INCOME OF SUBSIDIARIES			-206,427	-176,478
INCOME BEFORE INCOME TAXES			206,427	176,478
Net income			206,427	176,478
OTHER COMPREHENSIVE (LOSS) INCOME, NET OF TAX			-59,237	5,885
TOTAL COMPREHENSIVE INCOME			147,190	182,363
TransDigm Inc.
Supplemental Guarantor Information [Line Items]
NET SALES			62,646	59,065
COST OF SALES			37,365	35,692
GROSS PROFIT			25,281	23,373
SELLING AND ADMINISTRATIVE EXPENSES			34,469	29,740
AMORTIZATION OF INTANGIBLE ASSETS			694	694
INCOME (LOSS) FROM OPERATIONS			-9,882	-7,061
INTEREST EXPENSE - Net			204,309	162,134
EQUITY IN INCOME OF SUBSIDIARIES			-352,149	-275,926
INCOME BEFORE INCOME TAXES			137,958	106,731
INCOME TAX PROVISION (BENEFIT)			-68,469	-69,747
Net income			206,427	176,478
OTHER COMPREHENSIVE (LOSS) INCOME, NET OF TAX			-34,567	-343
TOTAL COMPREHENSIVE INCOME			171,860	176,135
Subsidiary Guarantors
Supplemental Guarantor Information [Line Items]
NET SALES			1,048,889	975,281
COST OF SALES			445,207	432,613
GROSS PROFIT			603,682	542,668
SELLING AND ADMINISTRATIVE EXPENSES			90,974	84,867
AMORTIZATION OF INTANGIBLE ASSETS			20,883	31,118
INCOME (LOSS) FROM OPERATIONS			491,825	426,683
INTEREST EXPENSE - Net			15	94
INCOME BEFORE INCOME TAXES			491,810	426,589
INCOME TAX PROVISION (BENEFIT)			154,777	153,204
Net income			337,033	273,385
OTHER COMPREHENSIVE (LOSS) INCOME, NET OF TAX			-700	1,018
TOTAL COMPREHENSIVE INCOME			336,333	274,403
Non-Guarantor Subsidiaries
Supplemental Guarantor Information [Line Items]
NET SALES			100,762	90,395
COST OF SALES			66,935	64,941
GROSS PROFIT			33,827	25,454
SELLING AND ADMINISTRATIVE EXPENSES			16,062	14,008
AMORTIZATION OF INTANGIBLE ASSETS			2,479	2,171
INCOME (LOSS) FROM OPERATIONS			15,286	9,275
INTEREST EXPENSE - Net			-5,497	914
INCOME BEFORE INCOME TAXES			20,783	8,361
INCOME TAX PROVISION (BENEFIT)			5,667	6,043
Net income			15,116	2,318
OTHER COMPREHENSIVE (LOSS) INCOME, NET OF TAX			-36,850	5,111
TOTAL COMPREHENSIVE INCOME			-21,734	7,429
Eliminations
Supplemental Guarantor Information [Line Items]
NET SALES			-6,369	-4,658
COST OF SALES			-6,369	-4,881
GROSS PROFIT				223
INCOME (LOSS) FROM OPERATIONS				223
EQUITY IN INCOME OF SUBSIDIARIES			558,576	452,404
INCOME BEFORE INCOME TAXES			-558,576	-452,181
Net income			-558,576	-452,181
OTHER COMPREHENSIVE (LOSS) INCOME, NET OF TAX			72,117	-5,786
TOTAL COMPREHENSIVE INCOME			($486,459)	($457,967)

Supplemental_Condensed_Consoli2

Supplemental Condensed Consolidating Statement of Cash Flows (Detail) (USD $)	6 Months Ended
In Thousands, unless otherwise specified	Mar. 28, 2015	Mar. 29, 2014
Supplemental Guarantor Information [Line Items]
NET CASH (USED IN) PROVIDED BY OPERATING ACTIVITIES	$182,916	$220,488
Capital expenditures	-22,999	-17,709
Cash proceeds from sale of real estate		16,380
Acquisition of business, net of cash acquired	-723,200	-311,016
Net cash (used in) provided by investing activities	-746,199	-312,345
Excess tax benefits related to share-based payment arrangements	38,029	10,698
Proceeds from exercise of stock options	39,122	9,422
Dividends paid	-3,365	-9,625
Repayment of credit facility	-9,824	-7,761
Proceeds from credit revolver	75,250
Other	-41	-78
Net cash (used in) provided by financing activities	139,171	2,656
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	-2,917	152
(DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS	-427,029	-89,049
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	819,548	564,740
CASH AND CASH EQUIVALENTS, END OF PERIOD	392,519	475,691
TransDigm Group
Supplemental Guarantor Information [Line Items]
Intercompany activities	-141,146	-11,258
Excess tax benefits related to share-based payment arrangements	38,029	10,698
Proceeds from exercise of stock options	39,122	9,422
Dividends paid	-3,365	-9,625
Repayment of credit facility	-9,824
Proceeds from credit revolver	75,250
Net cash (used in) provided by financing activities	-1,934	-763
(DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS	-1,934	-763
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	2,088	1,313
CASH AND CASH EQUIVALENTS, END OF PERIOD	154	550
TransDigm Inc.
Supplemental Guarantor Information [Line Items]
NET CASH (USED IN) PROVIDED BY OPERATING ACTIVITIES	-72,472	-74,534
Capital expenditures	-976	-1,573
Acquisition of business, net of cash acquired	-723,200	-311,016
Net cash (used in) provided by investing activities	-724,176	-312,589
Intercompany activities	372,995	292,401
Repayment of credit facility		-7,761
Other	-41	-78
Net cash (used in) provided by financing activities	372,954	284,562
(DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS	-423,694	-102,561
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	782,648	536,863
CASH AND CASH EQUIVALENTS, END OF PERIOD	358,954	434,302
Subsidiary Guarantors
Supplemental Guarantor Information [Line Items]
NET CASH (USED IN) PROVIDED BY OPERATING ACTIVITIES	268,461	279,875
Capital expenditures	-19,165	-14,669
Cash proceeds from sale of real estate		16,380
Net cash (used in) provided by investing activities	-19,165	1,711
Intercompany activities	-254,054	-289,119
Net cash (used in) provided by financing activities	-254,054	-289,119
(DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS	-4,758	-7,533
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	3,793	7,900
CASH AND CASH EQUIVALENTS, END OF PERIOD	-965	367
Non-Guarantor Subsidiaries
Supplemental Guarantor Information [Line Items]
NET CASH (USED IN) PROVIDED BY OPERATING ACTIVITIES	-12,969	21,275
Capital expenditures	-2,858	-1,467
Net cash (used in) provided by investing activities	-2,858	-1,467
Intercompany activities	22,101	-9,949
Net cash (used in) provided by financing activities	22,101	-9,949
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	-2,917	152
(DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS	3,357	10,011
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	31,019	18,664
CASH AND CASH EQUIVALENTS, END OF PERIOD	34,376	28,675
Eliminations
Supplemental Guarantor Information [Line Items]
NET CASH (USED IN) PROVIDED BY OPERATING ACTIVITIES	-104	-6,128
Intercompany activities	104	17,925
Net cash (used in) provided by financing activities	104	17,925
(DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS		11,797
CASH AND CASH EQUIVALENTS, END OF PERIOD		$11,797