U.S. Air Force Staff Sgt. Ernesto Parra, 18th Component Maintenance Squadron test cell craftsman, inspects a F-15E Eagle engine, the F100-PW-220, during a routine afterburner test at Kadena Air Base, Japan, Aug. 12, 2025. Airmen from the 18th CMS test aircraft engines like this in a specialized hangar to ensure all components function properly before use. (Airman Nathaniel Jackson, 18th Wing Public Affairs)