Confidential portions of this exhibit have been omitted pursuant to a request for confidential treatment filed separately with the Securities and Exchange Commission. Omissions are designated by the symbol [*****].

The Parties have entered into an agreement SBP-MS ###-###-#### (“SBP”), GTA-BCA ###-###-#### (“GTA”) and M ###-###-#### (AA) (together with all attachments and amendments thereto, the “Sustaining Contract”) for Seller to provide Products for certain current model Aircraft.

Seller currently supplies Products to Boeing under the Sustaining Contract in support of the 737 model aircraft.

Boeing is seeking to develop, design and manufacture an aircraft currently designated as the 737 MAX to be sold under the 737-7, 737-8 and 737-9 designations (the “737 MAX Program”, or “737 MAX”), and in connection therewith, the Parties have entered into a Memorandum of Agreement: 737 MAX Non-Recurring Agreement, dated April 7, 2014 (the “737 MAX MOA”).

Pursuant to the 737 MAX MOA, the Parties will negotiate the transfer of the Titainium Inner Wall from Seller to Boeing, the terms of which the Parties will amend into the Sustaining Contract

The Parties desire to modify Seller’s scope of work for the 737 MAX Program to transfer certain responsibility for the design and production of the Titanium Inner-Wall from Seller to Boeing, on the terms and conditions set forth herein.

Amendment of the SBP. The SBP is hereby amended to include the following.

Section 3.6 is hereby added to the SBP as follows:

Attachment 25, attached hereto as Exhibit A, is hereby added to the SBP.

Attachment 16, attached hereto as Exhibit B, is hereby amended within the SBP to reflect transfer of the TI SOW.

The Parties agree to include the following language in the Attachment 1 Parts and Prices file: “Per Attachment 25, the 737 MAX Titanium Inner Wall is not subject to this Attachment 1.”

This agreement may be changed only in writing by authorized representatives of Seller and Boeing.

This Attachment 25 implements the terms of an agreement between the Parties under Amendment 9 of the SBP executed September 4, 2014 (“Execution Date”). Attachment 25 pertains only to the 737 MAX Program Titanium Inner-Wall and does not alter any existing agreements or levels of responsibility, accountability and authority relating to other items in the SBP-MS ###-###-#### (“SBP”), GTA-BCA ###-###-#### (“GTA”) and AA ###-###-#### (AA) (together with all attachments and amendments thereto, the “Sustaining Contract”) .

The statement of work comprising the Titanium Inner-Wall (“TI SOW”) for the 737 MAX is set forth in 1.2.A below. No part of the TI SOW includes or is intended to include the current 737 model work statement unrelated to the 737 MAX Program.

The TI SOW includes the following assembly drawing numbers and all associated dash numbers:

Capitalized terms used herein but not otherwise defined shall have the meaning set forth in the Sustaining Contract.

As of the Execution Date, Seller’s responsibility, accountability, duties, obligations, liabilities, rights, title, and interest in the TI SOW are hereby assigned and transferred to Boeing, including any liabilities for Follow-On Work as defined in Section 2.5 & 2.6 below. Seller’s BSOW (under and as defined in the 737 MAX Non-Recurring Memorandum of Agreement dated April 7, 2014, the “737 MAX MOA”) and Sustaining Contract are hereby amended to reflect such assignment and transfer to remove the TI SOW. The Follow-On Work to the TI SOW will be implemented in accordance with Sections 2.5 & 2.6.

For good and valuable consideration, the receipt of which is hereby acknowledged, Seller, as of the Execution Date, assigns to Buyer any and all right, title, interest it may have (if any) in all TI SOW Intellectual Property associated with the Titanium Inner-Wall. Seller represents and warrants that no consents of any other parties, including without limitation GKN Aerospace Astech Engineered Products, Inc., are necessary or appropriate under any agreements or licenses concerning the TI SOW Intellectual Property associated with the Titanium Inner-Wall in order for the transfer and assignment of the TI SOW Intellectual Property under this Attachment 25 to be legally effective. Seller further agrees to provide support in connection with any proceeding affecting the right, title, or interest of Boeing and to perform any other actions deemed reasonably necessary to carry out the intent of this Section, at Boeing’s sole expense. For purposes of this Attachment 25, “TI SOW Intellectual Property” means all legal rights in works, ideas, inventions, discoveries, and improvements, including, but not limited to patents, patent applications, copyrights, copyrightable works (including^, software), trademarks, proprietary information, mask works, integrated circuit layout designs, drawings, specifications, processes, databases, technical data, inventions, trade secrets, and know-how.

The Titanium Inner-Wall end item constitutes Supplier Banked Material (SBM). Seller values the TI SOW at [*****] per shipset (SBP Attachment 1 Base Price delta), however, [*****] for the purpose of fabricating the 737 MAX Thrust Reverser. Title to the Titanium Inner-Wall end item will at all times remain with Boeing. Seller will provide Boeing with

The Parties agree that notwithstanding any other term herein, Seller shall have no warranty obligations for products and / or services pertaining to the TI SOW, whether such products or services were provided before or after the Execution Date. This provision disclaims only Spirit’s liability for warranty claims; claims by Boeing against Seller for Seller’s contribution toward third-party injury, damage, or loss are not limited, waived, released, or disclaimed.

As of the Effective Date, Seller will provide design support and services for the Titanium Inner Wall as reasonably requested by Boeing (“Follow-On Work” for purposes of this Attachment 25) through completion of dataset releases from Spirit to Boeing to support Flight Test Unit 2 (currently NAMS), unless otherwise mutually agreed in writing to extend. Such work shall be compensated as described in this section 2.5 for Follow-On Work. In no event shall Follow-On Work exceed the scope of Seller’s services prior to the Execution Date. Due to the transition of obligations as set forth in Section 2.1, Boeing Design approval and signature will be provided for each layout and dataset release. Follow-On Work will be compensated under the terms of the 737 MAX MOA pertaining to payment as if the Follow-On Work were Non-Recurring-Non-Tooling work. Notwithstanding the foregoing, performance of Follow-On Work is subject to the terms of this Attachment 25 rather than the 737 MAX MOA, except that for purposes of administration Follow-On Work will be noted as a separate line item on Seller’s 737 MAX MOA Exhibit E monthly actual submittals as if it were Non-recurring-Non Tooling work.

As of the Effective Date, Seller hereby transfers and assigns to Boeing all production responsibility under the TI SOW. Notwithstanding the foregoing, Spirit will continue to provide limited operational resources through Flight Test Unit 2 as Follow-On Work, as reasonably requested by Boeing, for support of the TI SOW.

In the event Boeing changes the material requirements of the TI SOW such that the Inner-Wall end item will be constructed from a material other than titanium (“Revised Inner-Wall SOW”), Boeing will notify Seller and will give Seller an opportunity to submit a proposal regarding the Revised Inner-Wall SOW.

This Attachment 25, including all Exhibits and Attachments hereto, contains the entire agreement between the Parties regarding the subject matter of Attachment 25 and, together with the applicable 737 MAX MOA provisions as qualified herein, supersedes all previous proposals, understandings, commitments, or representations whatsoever, oral or written for said effort.

Except as specified herein, all other terms of the Sustaining Contract and 737 MAX MOA apply. In the event of a conflict between the terms of this Attachment 25 and the Sustaining Contract or 737 MAX MOA, the terms of this Attachment will have precedence.