United Technologies Corp., Pratt & Whitney Engines, East Hartford, Connecticut, is awarded $71,407,381 for firm-fixed-price-incentive-fee, cost-plus-fixed-fee task order N0001919F0001 against a previously issued basic ordering agreement (N00019-17-G-0005) in support of the F-35 Lightning II Joint Strike Aircraft for the Navy, Air Force; non- Department of Defense (DoD) participants and Foreign Military Sales (FMS) customers. This order provides for supplies or services for non-recurring engineering for the identification and correction of service safety and durability deficiencies, maintains specification performance, and matures the propulsion system in advance of service operational use. Work will be performed in East Hartford, Connecticut (92 percent); and Indianapolis, Indiana (8 percent), and is expected to be completed in December 2023. Fiscal 2019 research, development, test and evaluation (Navy and Air Force); non-DoD participant; and FMS funds in the amount of $64,600,166 will be obligated at time of award, none of which will expire at the end of the fiscal year. This order combines purchases for the Navy ($25,363,518; 36 percent); Air Force ($24,943,370; 35 percent); non-DoD Participants ($12,930,389; 18 percent); and FMS customers ($8,170,105; 11 percent). The Naval Air Systems Command, Patuxent River, Maryland, is the contracting activity.