The Boeing Co., St. Louis, Missouri, has been awarded a not-to-exceed $21,670,000 fixed-price, cost-plus-fixed-fee and time and materials undefinitized contract action for F-15S to F-15SA conversion support.  This contract provides support for the conversion of the Royal Saudi Air Force F-15S into an F-15SA aircraft, which includes program management, reach-back support for the 48 continental United States and Washington, D.C.; temporary on-site for outside the continental U.S. assistance (if needed); and round robin repairs.  Work will primarily be performed in St. Louis, Missouri, and is expected to be complete by Dec. 30, 2022.  This contract involves Foreign Military Sales (FMS) to the kingdom of Saudi Arabia and is the result of a sole-source acquisition.  FMS funds in the full amount are being obligated at the time of award.  Air Force Life Cycle Management Center, Robins Air Force Base, Georgia, is the contracting activity (FA8575-21-F-0001). (Awarded Dec. 31, 2020)