STOCK OPTION GRANT NOTICE AND STOCK OPTION AGREEMENT

Exhibit 10.1

STOCK OPTION GRANT NOTICE AND STOCK OPTION AGREEMENT

TransDigm Group Incorporated, a Delaware corporation (the “ Company ”), pursuant to its 2006 Stock Incentive Plan (the “ Plan ”), hereby grants to the holder listed below (“ Participant ”), an option to purchase the number of shares of the Company’s common stock, par value $0.01 (“ Stock ”), set forth below (the “ Option ”). This Option is subject to all of the terms and conditions set forth herein and in the Stock Option Agreement attached hereto as Exhibit A (the “ Stock Option Agreement ”) and the Plan, which are incorporated herein by reference. Unless otherwise defined herein, the terms defined in the Plan shall have the same defined meanings in this Grant Notice and the Stock Option Agreement.

By his or her signature, the Participant agrees to be bound by the terms and conditions of the Plan, the Stock Option Agreement and this Grant Notice. The Participant has reviewed the Stock Option Agreement, the Plan and this Grant Notice in their entirety, has had an opportunity to obtain the advice of counsel prior to executing this Grant Notice and fully understands all provisions of this Grant Notice, the Stock Option Agreement and the Plan. The Participant agrees that as a condition to receiving the Option, the Participant shall comply with the Stock Retention Guidelines set forth on Exhibit C . The Participant hereby agrees to accept as binding, conclusive and final all decisions or interpretations of the Committee upon any questions arising under the Plan or relating to the Option.

EXHIBIT A

TO STOCK OPTION GRANT NOTICE

STOCK OPTION AGREEMENT

Pursuant to the Stock Option Grant Notice (the “ Grant Notice ”) to which this Stock Option Agreement (this “ Agreement ”) is attached, TransDigm Group Incorporated, a Delaware corporation (the “ Company ”), has granted to the Participant an option (the “ Option ”) ¹ under the Company’s 2006 Stock Incentive Plan (the “ Plan ”) to purchase the number of shares of Stock indicated in the Grant Notice.

ARTICLE I.

GENERAL

1.1 Defined Terms . Wherever the following terms are used in this Agreement they shall have the meanings specified below, unless the context clearly indicates otherwise. Capitalized terms not specifically defined herein shall have the meanings specified in the Plan and the Grant Notice.

(a) “ Administrator ” shall mean the Board or the Compensation Committee or other committee of the Board responsible for conducting the general administration of the Plan in accordance with Section 3 of the Plan; provided that if the Participant is an Independent Director, “Administrator” shall mean the Board.

(b) “ Consultant ” shall mean an individual who renders services to the Company as a consultant and has been so designated by the Committee.

(c) “ Credit Agreement ” shall mean that certain credit agreement dated as of June 23, 2006 among TransDigm, Inc., TransDigm Group Incorporated and the lenders party thereto, as in effect as of the Grant Date and without reference to any amendment to the Credit Agreement made following the Grant Date.

(d) “ Diluted Shares ” as of a given date shall mean the total diluted weighted-average of common shares of the Company outstanding as of such date.

(e) “ EBITDA ” for a given fiscal year of the Company shall mean Consolidated EBITDA (as defined in the Credit Agreement) of the Company for such fiscal year on a pro forma basis adjusted for acquisitions or divestitures.

(f) “ Independent Director ” shall mean a non-employee director of the Company.

(g) “ Net Debt ” shall mean, as of the last day of a given fiscal year of the Company, the excess of (a) Consolidated Total Indebtedness (as defined in the Credit Agreement) of the Company over (b) the amount of cash and cash equivalents set forth on the Company’s balance sheet.

(h) “ Termination of Consultancy ” shall mean the time when the engagement of the Participant as a Consultant to the Company or a Subsidiary is terminated for any reason, with or without

cause, including, but not by way of limitation, by resignation, discharge, death or retirement, but excluding: (i) terminations where there is a simultaneous employment or continuing employment of the Participant by the Company or any Subsidiary, and (ii) terminations where there is a simultaneous re-establishment of a consulting relationship or continuing consulting relationship between the Participant and the Company or any Subsidiary. The Administrator, in its absolute discretion, shall determine the effect of all matters and questions relating to Termination of Consultancy, including, but not by way of limitation, the question of whether a particular leave of absence constitutes a Termination of Consultancy. Notwithstanding any other provision of the Plan, the Company or any Subsidiary has an absolute and unrestricted right to terminate a Consultant’s service at any time for any reason whatsoever, with or without cause, except to the extent expressly provided otherwise in writing.

(i) “ Termination of Directorship ” shall mean the time when the Participant, if he or she is or becomes an Independent Director, ceases to be a Director for any reason, including, but not by way of limitation, a termination by resignation, failure to be elected, death or retirement. The Board, in its sole and absolute discretion, shall determine the effect of all matters and questions relating to Termination of Directorship with respect to Independent Directors.

(j) “ Termination of Employment ” shall mean the time when the employee-employer relationship between the Participant and the Company or any Subsidiary is terminated for any reason, with or without Cause, including, but not by way of limitation, a termination by resignation, discharge, death, disability or retirement; but excluding: (i) terminations where there is a simultaneous reemployment or continuing employment of the Participant by the Company or any Subsidiary, and (ii) terminations where there is a simultaneous establishment of a consulting relationship or continuing consulting relationship between the Participant and the Company or any Subsidiary. The Administrator, in its absolute discretion, shall determine the effect of all matters and questions relating to Termination of Employment, including, but not by way of limitation, the question of whether a particular leave of absence constitutes a Termination of Employment; provided, however, that, if this Option is an Incentive Stock Option, unless otherwise determined by the Administrator in its discretion, a leave of absence, change in status from an employee to an independent contractor or other change in the employee-employer relationship shall constitute a Termination of Employment if, and to the extent that, such leave of absence, change in status or other change interrupts employment for the purposes of Section 422(a)(2) of the Code and the then applicable regulations and revenue rulings under said Section.

(k) “ Termination of Services ” shall mean the time when (i) every relationship between the Participant and the Company has been terminated by a Termination of Consultancy, Termination of Directorship and/or Termination of Employment, as applicable, and (ii) the Participant is no longer an Eligible Person under the Plan.

1.2 Incorporation of Terms of Plan . The Option is subject to the terms and conditions of the Plan which are incorporated herein by reference. In the event of any inconsistency between the Plan and this Agreement, the terms of the Plan shall control.

ARTICLE II.

GRANT OF OPTION

2.1 Grant of Option . In consideration of the Participant’s past and/or continued employment with or service to the Company or a Subsidiary and for other good and valuable consideration, effective as of the Grant Date set forth in the Grant Notice (the “ Grant Date ”), the Company irrevocably grants to the Participant the Option to purchase any part or all of an aggregate of the number of shares of Stock set forth in the Grant Notice, upon the terms and conditions set forth in the Plan and this Agreement. Unless

designated as a Non-Qualified Stock Option in the Grant Notice, the Option shall be an Incentive Stock Option to the maximum extent permitted by law.

2.2 Exercise Price . The exercise price of the shares of Stock subject to the Option shall be as set forth in the Grant Notice, without commission or other charge; provided , however , that the price per share of the shares of Stock subject to the Option shall not be less than 100% of the Fair Market Value of a share of Stock on the Grant Date. Notwithstanding the foregoing, if this Option is designated as an Incentive Stock Option and the Participant owns (within the meaning of Section 424(d) of the Code) more than 10% of the total combined voting power of all classes of stock of the Company or any “subsidiary corporation” of the Company or any “parent corporation” of the Company (each within the meaning of Section 424 of the Code), the price per share of the shares of Stock subject to the Option shall not be less than 110% of the Fair Market Value of a share of Stock on the Grant Date.

2.3 Consideration to the Company . In consideration of the grant of the Option by the Company, the Participant agrees to render faithful and efficient services to the Company or any Subsidiary. Nothing in the Plan or this Agreement shall confer upon the Participant any right to continue in the employ or service of the Company or any Subsidiary or shall interfere with or restrict in any way the rights of the Company and its Subsidiaries, which rights are hereby expressly reserved, to discharge or terminate the services of the Participant at any time for any reason whatsoever, with or without Cause, except to the extent expressly provided otherwise in a written agreement between the Company or a Subsidiary and the Participant.

ARTICLE III.

PERIOD OF EXERCISABILITY

3.1 Commencement of Exercisability .

(a) Subject to Sections 3.1(b), 3.1(c) and 3.3, the Option shall become vested and exercisable in such amounts and at such times as are set forth in the Grant Notice.

(b) No portion of the Option which has not become vested and exercisable at the date of the Participant’s Termination of Services shall thereafter become vested and exercisable, except as may be otherwise provided by the Administrator or as set forth in a written agreement between the Company and the Participant.

(c) Notwithstanding Section 3.1(a) of this Agreement and Section 8 of the Plan (but subject to Section 3.1(b) of this Agreement), in the event of a Change in Control: Options shall become fully vested and exercisable if the applicable target related to Stockholder Return (as defined below) is attained: (i) if such Change in Control occurs on or prior to September 30, 2009 and the Stockholder Return (as defined below) is at least 50%; (ii) if such Change in Control occurs on or following October 1, 2009 and on or prior to September 30, 2010 and the Stockholder Return is at least 40%; (iii) if such Change in Control occurs on or following October 1, 2010 and on or prior to September 30, 2011 and the Stockholder Return is at least 30%; or (iv) if such Change in Control occurs on or following October 1, 2011 and on or prior to September 30, 2013 and the Stockholder Return is at least 20%; provided, however that in no case shall the Options become fully vested unless the Fair Market Value per share on the effective date of a Change in Control is $52.50. For purposes of this Section 3.1, “Stockholder Return” shall mean the annual compounded pre-tax internal rate of return determined with respect to the period beginning on the Grant Date and ending on the effective date of a Change in Control (and based upon an assumed fair market value of $35.00 per share on the Grant Date and on the Fair Market Value on the effective date of a Change in Control). For purposes of determining Stockholder Return in

connection with any Change in Control, the following proceeds received by the Company’s stockholder during the period beginning on the Grant Date and ending on the date of such Change in Control shall be considered: (i) dividends and distributions received by the stockholders from the Company or any of its subsidiaries plus (ii) the Fair Market Value of the consideration received by the stockholders in connection with a Change in Control or in connection with any other sale of common stock or other equity interests in the Company or any Subsidiary, after taking into account all post-closing adjustments relating to a Change in Control, and assuming the exercise of all vested options and warrants outstanding as of the effective date of such Change in Control (after giving effect to any dilution of securities or instruments arising in connection with such Change in Control); provided however , that if the stockholders retain any portion of the common stock following such Change in Control or other sale, the Fair Market Value of such portion of the retained common stock immediately following such Change in Control or other sale shall be deemed “consideration received” for purposes of calculating the proceeds and provided further that the Fair Market Value of any non-cash consideration (including stock) received in connection with a Change in Control shall be determined as of the date of such Change in Control.

[(d) INCLUDE ONLY FOR THOSE PARTICIPANTS RECEIVING A 280G GROSS UP: Anything in this Agreement to the contrary notwithstanding, if a Change of Control occurs and it is determined that any payment or distribution by the Company to or for the benefit of Participant, whether paid or payable or distributed or distributable pursuant to the terms of this Agreement or otherwise, including the acceleration of Options hereunder (a “ Payment ”), would constitute an “excess parachute payment” within the meaning of Section 280G of the Code, the Company shall pay to the Participant an additional amount (the “ Gross-Up Payment ”) equal to the amount of any excise tax imposed under Section 4999 of the Code, times a gross-up factor equal to 1 divided by (1 minus the Total Tax Rate) (but limited in amount to the excise tax that would have been imposed under the Code as in effect on the date hereof), where the “ Total Tax Rate ” includes any applicable federal, state and local income tax, employment tax and excise tax for the Participant. For purposes of determining the amount of the Gross-Up Payment, unless the Participant specifies that other rates apply, the Participant shall be deemed to pay federal income tax and employment taxes at the highest marginal rate of federal income and employment taxation in the calendar year in which the Gross-Up Payment is to be made, and state and local income taxes at the highest marginal rate of taxation in the state and locality of the Participant’s residence on the Payment date, net of the maximum reduction in federal income taxes that may be obtained from the deduction of such state and local taxes. All determinations to be made under this paragraph shall be made by the Company’s independent public accountants immediately prior to the Change of Control. Any such determination by the Company’s independent public accountants shall be binding upon the Company and the Participant. The Company shall pay the Gross-Up Payment to the Participant within ten days after the independent public accountant’s determination of the amount thereof. In any event, the Gross-Up Payment shall be made no later than three and one-half months following the taxable year in which the Payment occurs. All of the fees and expenses of the independent public accountants in performing the determinations referred to in this paragraph shall be borne solely by the Company. In the event there is a material change in the Code that negatively impacts the amount of excise tax that would be payable in the event of a Change in Control, the Administrator will revisit the issue of providing a Gross-Up Payment and consider whether the limitation on the amount of the Gross-Up Payment based on the Code as in effect on the date hereof should be removed or modified.]

3.2 Duration of Exercisability . The installments provided for in the vesting schedule set forth in the Grant Notice are cumulative. Each such installment which becomes vested and exercisable pursuant to the vesting schedule set forth in the Grant Notice shall remain vested and exercisable until it becomes unexercisable under Section 3.3.

3.3 Expiration of Option . The Option may not be exercised to any extent by anyone after the first to occur of the following events:

(a) The expiration of ten years from the Grant Date;

(b) If this Option is designated as an Incentive Stock Option and the Participant owned (within the meaning of Section 424(d) of the Code), at the time the Option was granted, more than 10% of the total combined voting power of all classes of stock of the Company or any “subsidiary corporation” of the Company or any “parent corporation” of the Company (each within the meaning of Section 424 of the Code), the expiration of five years from the Grant Date;

(c) The opening of business on the day of the Participant’s Termination of Employment by reason of a termination by the Company for Cause;

(d) The expiration of six months from the date of the Participant’s Termination of Services, unless such termination occurs by reason of the Participant’s death, Disability or retirement (pursuant to Section 3.3(e)) or is a termination by the Company for Cause (as defined in Participant’s employment agreement), provided, however , that any portion of this Option that is an Incentive Stock Option shall cease to be an Incentive Stock Option on the expiration of three months from the Participant’s Termination of Services (and shall thereafter be a Non-Qualified