190118-F-DM566-0086
U.S. Air Force Airman 1st Class Nathaniel West, 18th Aircraft Maintenance Squadron crew chief, cleans an F-15 Eagle engine bay compartment, Jan. 18, 2019, on Kadena Air Base, Japan. Over time, dirt, grease and grime can build up in the aircrafts engine bay and can cover up cracks or other discrepancies on the aircraft. (U.S. Air Force photo by Staff Sgt. Micaiah Anthony)