Lockheed Martin Corp., Lockheed Martin Aeronautics Co., Fort Worth, Texas, is awarded a $578,246,002 firm-fixed-price modification (P00001) to a previously awarded contract (N0001922C0032). This modification provides program management support, non-recurring unique requirements, and training for continued integration efforts for a Foreign Military Sales (FMS) customer on the F-35 Joint Strike Fighter program. Work will be performed in Fort Worth, Texas (85%); Orlando, Florida (10%); and various locations outside the continental U.S. (5%), and is expected to be completed in March 2030. FMS customer funds in the amount of $578,246,002 will be obligated at the time of award, none of which will expire at the end of the current fiscal year. The Naval Air Systems Command, Patuxent River, Maryland, is the contracting activity.