Amendment 54, dated as of July 1, 2024, to Special Business Provisions (SBP) MS ###-###-#### between The Boeing Company and Spirit AeroSystems, Inc

This Amendment 54 (Amendment) to Special Business Provisions MS ###-###-#### is entered into as of the date of the last signature below, between The Boeing Company, a Delaware corporation (Boeing), and Spirit AeroSystems, Inc., a Delaware corporation with its principal office in Wichita, Kansas (Seller). Hereinafter, Boeing and Seller may be referred to jointly as the Parties.

A.The Parties entered into Special Business Provisions MS ###-###-####, dated June 16, 2005, (SBP) and the General Terms Agreement BCA ###-###-####, dated June 17, 2005, (GTA), (collectively, the Agreement).

B.The most recent amendment to the SBP is Amendment 54, dated March 1, 2024.

C.All capitalized terms used but not defined in this Amendment have the same meaning as in the SBP.

D.The Parties wish to amend the SBP as set forth herein.

NOW THEREFORE, the Parties agree as follows:

2.SBP Attachment 29, Section 5.3.1, is deleted and replaced in its entirety with the following:

"5.3.1Seller shall invoice for and Boeing shall reimburse to Seller, on a [****] basis, an amount calculated by multiplying the rate as defined below (the billing rate) by the number of actual validated labor hours (“Spirit labor hours”) expended for Non-Recurring Non-Tooling and Non-Recurring Tooling work. Rates below do not include G&A of [****]%. Seller will add the agreed to [****]% G&A to the rates below for invoicing and payment.

5.3.1.1In the event that Seller experiences a labor rate true-up that results in the 777X “Engineering” labor rate being greater than the agreed-to billing rate, Seller will submit to Boeing by the end of February of the following year the actual accounting rates for the “Engineering” labor rate category only. The labor rate with true up will be calculated based on the yearly total 777X Engineering dollars as determined by Seller’s financial system divided by the yearly total 777X Engineering hours billed. The December actuals submittal will include a separate tab showing a calculation of the true up delta and an explanation of the delta dollars applied (For example: Engineering rate base dollars were underran. The amount to be allocated to the 777X program is $XX). Seller will support the labor rate true up as stated in GTA section 9.0 (Examination of Records).

5.3.1.2Boeing agrees to pay the validated labor rate delta as long as the labor rate is at the capped amount or below. In the event that the true up delta exceeds the capped amount, Boeing agrees to pay the delta at the capped amount. Payments owed by Boeing for rate true-up will be due with the December payment for each year as referenced in 4.4.2 and 5.1.2.”

3.1.All other provisions of the Agreement remain unchanged and in full force and effect.

3.2.This Amendment cancels and supersedes all previous agreements between the Parties relating to the content of this Amendment, whether written or oral.

4. Governing Law.

This Amendment shall be governed by the internal laws of the State of Washington without reference to any rules governing conflict of laws.

5. Confidentiality.

The terms of this Amendment, together with the information exchanged by the Parties during negotiation hereof, are subject to the terms of the Agreement.

EXECUTED as of the last date set forth below by the duly authorized representatives of the Parties.