U.S. Air Force photo by Senior Airman James Hensley

Airman 1st Class Codey Yurkewicz, 309th Aircraft Maintenance Unit crew chief, runs the pilot of an F-16 Fighting Falcon through preflight checks at Luke Air Force Base, Ariz., Sept. 1, 2016. As a crew chief, Yurkewicz has the responsibility to look over the aircraft and ensure the pilot is good to go for flight.