U.S. Air Force Staff Sgt. Joshua Kovacevich, 52nd Maintenance Squadron propulsion journeyman, performs maintenance on an F-16 Fighting Falcon aircraft at Spangdahlem Air Base, Germany, Nov. 27, 2018. It is vital to the pilot's safety that all engine parts be inspected before being added to the jet. (U.S. Air Force photo by Airman 1st Class Jovante Johnson)