Huntington Ingalls Inc., Pascagoula, Mississippi, is awarded a $28,374,837 modification to previously awarded contract N00024-16-C-2427 for the Joint Strike Fighter, and ship’s mast and superstructure engineering change proposals in support of one Amphibious Assault Ship (General Purpose) Replacement (LHA(R)) Flight 1 Ship (LHA 8). Work will be performed in Pascagoula, Mississippi (72%); Chesapeake, Virginia (25%); and Philadelphia, Pennsylvania (3%). Work is expected to be completed by July 2025. Fiscal 2017 shipbuilding and conversion (Navy) funds in the amount of $28,374,837 will be obligated at time of award and will not expire at the end of the current fiscal year. The Naval Sea Systems Command, Washington, D.C., is the contracting activity.