Government Accountability Office Troublesome tiltrotor: V-22 Osprey safety flaws went unaddressed for almost a decade News Troublesome tiltrotor: V-22 Osprey safety flaws went unaddressed for almost a decade Bell/Boeing V-22 Osprey December 15, 2025 GAO: Lockheed Martin F-35 ‘overpromises and underdelivers’ as delays balloon to 238 days News GAO: Lockheed Martin F-35 ‘overpromises and underdelivers’ as delays balloon to 238 days Government Accountability Office September 5, 2025 F-35 Availability “Generally Does Not Meet Service Goals,” says US GAO News F-35 Availability “Generally Does Not Meet Service Goals,” says US GAO Government Accountability Office October 28, 2024