201124-F-EI321-0022
574th Aircraft Maintenance Squadron maintainers go through preflight preparations at Hill Air Force Base, Utah, Nov. 24, 2020, with Maj. Philip “Stonewall” Johnson, 514th Flight Test Squadron F-22 test pilot, prior to a functional check flight in the last F-22 Raptor to complete the F-22 Structural Repair Program. The 574th AMXS processed 135 F-22s through the program by performing structural modifications to increase total flying hour serviceability on each aircraft by 8,000 hours. (U.S. Air Force photo by Alex R. Lloyd)