Sikorsky Aircraft Corp., Stratford, Connecticut, has been awarded a $21,094,352 cost-plus-fixed-fee contract modification (P00254) to previously awarded contract FA8629-14-C-2403 for implementation of avionics software product baseline releases. The modification brings the total cumulative face value of the contract to $6,156,988,995. Work will be performed at Stratford, Connecticut, and is expected to be completed by Dec. 31, 2024. Fiscal 2022 and 2023 research, development, test and evaluation funds in the amount of $9,233,346 are being obligated at time of award. The Air Force Life Cycle Management Center, Wright Patterson Air Force Base, Ohio, is the contracting activity.