U.S Air Force Airman Luke Prokop, 309th Aircraft Maintenance Unit crew chief, performs final safety checks on an F-16 Fighting Falcon, Aug. 14, 2018 at Luke Air Force Base, Ariz. The 309th Fighter Squadron relies on their maintenance professionals to provide safe aircraft in support of pilot training. (U.S. Air Force Photo by Airman 1st Class Zoie Rider)