U.S. Air Force Senior Airman Zachary Cox, 94th Fighter Squadron crew chief, puts an aircraft boarding ladder on an F-22 Raptor at Joint Base Langley-Eustis, Virginia, May 18, 2021. Crew chiefs provide repair and overhaul capabilities for egress, fuels, armament, structural and low observable systems. (U.S. Air Force photo by Senior Airman Alexandra Singer)