Exhibit 99.1

TransDigm Group Reports Fiscal 2012 Second Quarter Results

Cleveland, Ohio, May 8, 2012/PRNewswire via COMTEX/ — TransDigm Group Incorporated (NYSE: TDG), a leading global designer, producer and supplier of highly engineered aircraft components, today reported results for the second quarter ended March 31, 2012.

Highlights for the second quarter:

Net sales for the quarter rose 39.2% to $423.5 million from $304.3 million in the comparable quarter a year ago. Organic net sales grew approximately 14.9%, of which two-thirds was attributable to strong commercial OEM sales. The acquisitions of AmSafe, Schneller and Harco accounted for the balance of the sales increase.

Net income from continuing operations for the quarter rose to $81.6 million, or $1.51 per share, compared to $36.7 million, or $0.69 per share in the comparable quarter a year ago. The increase in net income primarily reflects the growth in net sales described above and the reduction in acquisition-related costs. Net income from continuing operations for the second quarter of fiscal 2012 includes acquisition-related and non-cash compensation costs of $7.5 million, net of tax, or $0.14 per share. The comparable quarter a year ago reflected acquisition-related, refinancing and non-cash compensation costs of $14.6 million, net of tax, or $0.27 per share.

Net income from discontinued operations in the comparable quarter a year ago was $19.1 million, or $0.35 per share.

Adjusted net income for the quarter rose 73.7% to $89.1 million, or $1.65 per share, from $51.3 million, or $0.96 per share, in the comparable quarter a year ago.

EBITDA for the quarter increased 50.0% to $192.5 million from $128.3 million for the comparable quarter a year ago. EBITDA As Defined for the period increased 39.1% to $203.1 million compared with $146.1 million in the quarter a year ago. EBITDA As Defined as a percentage of net sales for the quarter was 48.0%.

“We are pleased with our operating results for both the second quarter and year-to-date periods,” stated W. Nicholas Howley, TransDigm Group’s Chairman and Chief Executive Officer. “Our second quarter organic sales growth of 15% and year-to-date EBITDA As Defined Margin of almost 49% continue to reflect the strength of our proprietary products as well as the diverse global commercial and military markets we serve. Our commercial aerospace businesses continue to grow nicely, though the OEM is growing faster than the aftermarket. Our defense business is exceeding our expectations at this time. The ongoing strong year-to-date EBITDA As Defined margin was again achieved in spite of approximately 2 margin point dilution from acquisitions.”

As previously reported on February 15, 2012, TransDigm Group acquired AmSafe Global Holdings, Inc. for approximately $750 million. AmSafe is a leading supplier of innovative, highly engineered and proprietary safety and restraint equipment used primarily in the global aerospace industry.

Year-to-Date Results

Net sales for the 26-week period ended March 31, 2012 rose 44.3% to $775.9 million from $537.9 million in the comparable period last year. Organic sales growth was 16.4%. The acquisitions of McKechnie, Talley, Schneller, Harco and AmSafe accounted for the balance of the sales increase.

Net income from continuing operations for the 26-week period increased 396.4% to $146.7 million, or $2.66 per share, from $29.5 million, or $0.50 per share. Net income in the prior year included one-time costs of $46.0 million, net of tax, or $0.86 per share, attributable to the refinancing of the Company’s capital structure in connection with the acquisition of McKechnie in the first quarter of fiscal 2011. The remainder of the increase in net income primarily reflects the growth in net sales as described above, partially offset by higher interest expense. Net income from continuing operations for the 26-week period ended March 31, 2012 includes acquisition–related and non-cash compensation costs of $18.9 million, net of tax, or $0.35 per share. In addition to the one-time costs attributable to the refinancing noted above, the net income in the comparable period a year ago included acquisition-related and non-cash compensation costs of $20.0 million, net of tax, or $0.38 per share.

Earnings per share were reduced in both fiscal 2012 and 2011, $0.06 per share and $0.05 per share respectively, due to dividend equivalent payments made in the first quarter of each fiscal year.

Net income from discontinued operations in the comparable period a year ago was $18.9 million, or $0.35 per share.

Adjusted net income for the 26-week period rose 73.3% to $165.5 million, or $3.07 per share, from $95.5 million, or $1.79 per share, in the comparable period a year ago.

EBITDA for the 26-week period increased 124.3% to $355.5 million from $158.5 million in the comparable period a year ago. EBITDA As Defined for the period, increased 47.0% to $377.3

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million compared with $256.6 million in the comparable period a year ago. EBITDA As Defined as a percentage of net sales for the period was 48.6%.

Please see the attached tables for a reconciliation of net income to EBITDA, EBITDA As Defined, and adjusted net income; a reconciliation of net cash provided by operating activities to EBITDA and EBITDA As Defined, and a reconciliation of earnings per share to adjusted earnings per share for the periods discussed in this press release.

Fiscal 2012 Outlook

Mr. Howley continued, “The Company is revising the full year fiscal 2012 guidance to reflect the recent acquisition of the lower margin AmSafe business and performance experienced in the first half of the year.”

Assuming no additional acquisitions, the revised guidance is as follows:

Conference Call

TransDigm Group will host a conference call for investors and security analysts on May 8, 2012, beginning at 11:00 a.m., Eastern Time. To join the call, dial (866) 804-6924 and enter the pass code 36755466. International callers should dial (857) 350-1670 and use the same pass code. A live audio webcast can be accessed online at http://www.transdigm.com. A slide presentation will also be available for reference during the conference call; go to the investor relations page of our website and click on “Presentations.”

The call will be archived on the website and available for replay at approximately 2:00 p.m., Eastern Time. A telephone replay will be available for two weeks by dialing (888) 286-8010 and entering the pass code 78162362. International callers should dial (617) 801-6888 and use the same pass code.

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About TransDigm Group

TransDigm Group, through its wholly-owned subsidiaries, 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. 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 and lighting and control technology.

Non-GAAP Supplemental Information

EBITDA, EBITDA As Defined, EBITDA As Defined Margin, adjusted net income and adjusted earnings per share are non-GAAP financial measures presented in this press release as supplemental disclosures to net income and reported results. TransDigm Group defines EBITDA as earnings before interest, taxes, depreciation and amortization and defines EBITDA As Defined as EBITDA plus certain non-operating items, effects from the sale on businesses, refinancing costs, acquisition-related costs, transaction-related costs and non-cash charges incurred in connection with certain employee benefit plans. TransDigm Group defines adjusted net income as net income plus purchase accounting backlog amortization expense, effects from the sale on businesses, refinancing costs, acquisition-related costs, transaction-related costs and non-cash charges incurred in connection with certain employee benefit plans. EBITDA As Defined Margin represents EBITDA As Defined as a percentage of net sales. TransDigm Group defines adjusted diluted earnings per share as adjusted net income divided by the total shares for basic and diluted earnings per share. For more information regarding the computation of EBITDA, EBITDA As Defined and adjusted net income and adjusted earnings per share, please see the attached financial tables.

TransDigm Group presents these non-GAAP financial measures because it believes that they are useful indicators of its operating performance. TransDigm Group believes that EBITDA is useful to investors because it is frequently used by securities analysts, investors and other interested parties to measure operating performance among companies with different capital structures, effective tax rates and tax attributes, capitalized asset values and employee compensation structures, all of which can vary substantially from company to company. In addition, analysts, rating agencies and others use EBITDA to evaluate a company’s ability to incur and service debt. EBITDA As Defined is used to measure TransDigm Inc.’s compliance with the financial covenant contained in its credit facility. TransDigm Group’s management also uses EBITDA As Defined to review and assess its operating performance, to prepare its annual budget and financial projections and to review and evaluate its management team in connection with employee incentive programs. Moreover, TransDigm Group’s management uses EBITDA As Defined to evaluate acquisitions and as a liquidity measure. In addition, TransDigm Group’s management uses adjusted net income as a measure of comparable operating performance between time periods and among companies as it is reflective of changes in pricing decisions, cost controls and other factors that affect operating performance.

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None of EBITDA, EBITDA As Defined, EBITDA As Defined Margin, adjusted net income or adjusted earnings per share is a measurement of financial performance under GAAP and such financial measures should not be considered as an alternative to net income, operating income, earnings per share, cash flows from operating activities or other measures of performance determined in accordance with GAAP. In addition, TransDigm Group’s calculation of these non-GAAP financial measures may not be comparable to the calculation of similarly titled measures reported by other companies.

Although we use EBITDA and EBITDA As Defined as measures to assess the performance of our business and for the other purposes set forth above, the use of these non-GAAP financial measures as analytical tools has limitations, and you should not consider any of them in isolation, or as a substitute for analysis of our results of operations as reported in accordance with GAAP. Some of these limitations are:

Because of these limitations, EBITDA and EBITDA As Defined should not be considered as measures of discretionary cash available to us to invest in the growth of our business. Management compensates for these limitations by not viewing EBITDA or EBITDA As Defined in isolation and specifically by using other GAAP measures, such as net income, net sales and operating profit, to measure our operating performance. Neither EBITDA nor EBITDA As Defined is a measurement of financial performance under GAAP, and neither should be considered as an alternative to net income or cash flow from operations determined in accordance with GAAP. Our calculation of EBITDA and EBITDA As Defined may not be comparable to the calculation of similarly titled measures reported by other companies.

Forward-Looking Statements

Statements in this press release that are not historical facts, including statements under the heading “Fiscal 2012 Outlook,” are forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995.Words such as “believe,” “may,” “will,” “should,” “expect,” “intend,” “plan,” “predict,” “anticipate,” “estimate,” or “continue” and other words and terms of similar meaning may identify forward-looking statements.

All forward-looking statements involve risks and uncertainties which could affect TransDigm Group’s actual results and could cause its actual results to differ materially from those expressed or implied in any forward-looking statements made by, or on behalf of, TransDigm Group. These risks

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and uncertainties include but are not limited to: the sensitivity of our business to the number of flight hours that our customers’ planes spend aloft and our customers’ profitability, both of which are affected by general economic conditions; future terrorist attacks; our reliance on certain customers; the U.S. defense budget and risks associated with being a government supplier; failure to maintain government or industry approvals; failure to complete or successfully integrate acquisitions; our substantial indebtedness; potential environmental liabilities; and other factors. Further information regarding the important factors that could cause actual results to differ materially from projected results can be found in TransDigm Group’s Annual Report on Form 10-K and other reports that TransDigm Group or its subsidiaries have filed with the Securities and Exchange Commission. Except as required by law, TransDigm Group undertakes no obligation to revise or update the forward-looking statements contained in this press release.

Investor Relations

(216) 706-2945

ir@transdigm.com

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