U.S. Air Force aircraft maintenance Airmen from the 378th Expeditionary Maintenance Squadron execute aircraft maintenance inspection on an F-15C Eagle aircraft at Prince Sultan Air Base, Kingdom of Saudi Arabia, June 30, 2020. Each F-15 goes through a phase inspection every 400 flight hour. This scheduled maintenance allows 378th EMXS maintainers to conduct a thorough inspection of the aircraft and repair any deficiencies, returning it to theater operations. (U.S. Air Force photo by Master Sgt. Benjamin Wiseman)