Rolls-Royce Corp., Indianapolis, Indiana, is awarded a $72,874,164 firm-fixed-price modification (P00024) to previously awarded contract N00019-17-C-0081.  This modification exercises an option to procure 33 production AE1107C V-22 Osprey engines; 14 for the Marine Corps and 19 for the Navy for production of MV-22 and CMV-22 tiltrotor aircraft.  Work will be performed in Indianapolis, Indiana, and is expected to be completed in December 2022.  Fiscal 2021 aircraft procurement (Navy) funds in the amount of $39,749,544; fiscal 2020 aircraft procurement (Navy) funds in the amount of $11,041,540; and fiscal 2019 aircraft procurement (Navy) funds in the amount of $22,083,080 will be obligated at the time of award, $22,083,080 of which will expire at the end of the current fiscal year.  The Naval Systems Command, Patuxent River, Maryland, is the contracting activity.