Lockheed Martin Corp., Lockheed Martin Aeronautics Co., Fort Worth, Texas, is awarded an $98,000,000 cost-plus-fixed-fee, indefinite-delivery/indefinite-quantity contract to provide for the development of production engineering change proposals, retrofit engineering release reports, investigations and subcontractor support for investigations and qualifications in support of increasing the life of F-35 aircraft parts for the Air Force, Marine Corps, Navy, and non-Department of Defense participants. Work will be performed in Fort Worth, Texas (58%); El Segundo, California (21%); and Samlesbury, United Kingdom (21%), and is expected to be completed in February 2026. 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). Naval Air Systems Command, Patuxent River, Maryland, is the contracting activity (N0001923D0022).