US HB4027

Requires the Secretary of the Air Force to continue production and procurement of advanced capability fighter aircraft (F-16 Block 70/72+, F-15EX, F-35, F-47) until all legacy fighters in Air Combat Command Fighter Wings are replaced

Prioritizes replacement for fighter squadrons that deploy at least 30% of the time, with the 335th Operational Squadron at Seymour Johnson Air Force Base specifically cited as deploying 50% of the time

Mandates GAO review of advanced capability fighter procurement challenges within one year, followed by a briefing to congressional defense committees and final report within 30 days

Requires the Secretary of the Air Force to submit annual progress reports to Congress on implementing GAO recommendations and replacing legacy aircraft starting 180 days after the GAO report

Recognizes the combat achievements of F-15E Strike Eagles, including their 104-0 air-to-air combat record and April 13, 2024 mission where four aircraft from the 4th Fighter Wing intercepted over two dozen Iranian drones targeting Israel and U.S. personnel