Phase Maintenance on an A-10C Thunderbolt II
U.S. Air Force Staff Sgt. Charles Stevenson, 357th Fighter Generation Squadron weapons load team chief, performs phase maintenance onunder an A-10C Thunderbolt II aircraft at Davis-Monthan Air Force Base, October 20, 2025. Phase maintenance occurs when an A-10 aircraft hits 600 flying hours. (U.S. Air Force photo by Airman 1st Class Jaden Kidd)