The Boeing Co., Tukwila, Washington, has been awarded a maximum $69,050,910 modification (P00138) to a previously awarded contract (FA8625-16-C-6599) for the procurement of long lead spare parts for two VC-25B aircraft. The modification brings the total cumulative face value of the contract to $4,300,768,894 from $4,231,717,984. The modification is separate from the contract’s firm-fixed-price engineering and manufacturing development efforts. Work will be performed at San Antonio, Texas, and is expected to be completed by Jan. 9, 2028. Fiscal 2023 research, development, test, and evaluation funds in the amount of $8,987,380; and fiscal 2024 research, development, test, and evaluation funds in the amount of $17,012,620, are being obligated at the time of award. The Air Force Life Cycle Management Center, Wright Patterson Air Force Base, Ohio, is the contracting activity.