Lockheed Martin Corp., Lockheed Martin Aeronautics Co., Fort Worth, Texas, is awarded a $663,134,662 modification (P00092) to a previously awarded cost-plus-incentive-fee, fixed-price-incentive, cost reimbursable contract (N0001921C0020). This modification adds scope to provide logistics support, to include ground maintenance activities, action request solution, depot activation activities, automatic logistics information system operations and maintenance, reliability and maintainability, supply chain management, pilot training, maintainer training, and training system sustainment in support of delivered F-35 Lightning II Joint Strike Fighter Air Systems for the Marine Corps, Navy, Foreign Military Sales (FMS) customers, and non-U.S. Department of Defense (DOD) participants. Work will be performed in Fort Worth, Texas (57%); Orlando, Florida (26%); Greeneville, South Carolina (11%); Samlesbury, United Kingdom (4%); and El Segundo, California (2%), and is expected to be completed in March 2024. Fiscal 2024 operation and maintenance (Air Force) funds in the amount of $246,914,605; fiscal 2024 operation and maintenance (Marine Corps) funds in the amount of $142,762,214; fiscal 2024 operation and maintenance (Navy) funds in the amount of $64,824,767; FMS customer funds in the amount of $63,194,514; and non-U.S. DOD participant funds in the amount of $145,438,562 will be obligated at time of award, $454,501,586 of which will expire at the end of the current fiscal year. Naval Air Systems Command, Patuxent River, Maryland, is the contracting activity.