Sikorsky Aircraft Corp., Stratford, Connecticut, is awarded a $26,137,728 cost-plus-fixed-fee, indefinite-delivery/indefinite-quantity contract. This contract provides engineering technical field services in support of various fleet activities to inform, instruct, and train Navy and Marine Corps military and civilian personnel in the installation, operation, and maintenance of the H-60 and H-53 series aircraft, to include technical guidance and advice to resolve unusually complex technical problems. Work will be performed in Okinawa, Japan (14%); North Hanover, New Jersey (13%); Atsugi, Japan (12%); Rota, Spain (12%); San Diego, California (12%); Apra Harbor, Guam (10%); Jacksonville, Florida (6%); Havelock, North Carolina (6%); Jacksonville, North Carolina (6%); Kaneohe Bay, Hawaii (6%); and Stratford, Connecticut (3%), and is expected to be completed in September 2027. No funds will be obligated at the time of award; funds will be obligated on individual orders as they are issued. This contract was not competitively procured pursuant to 10 U.S. Code 2304 (c)(1). The Commander, Fleet Readiness Centers, Patuxent River, Maryland, is the contracting activity (N6852022D0004).