U.S. Air Force Staff Sgt. Jonathan McCullough, an 8th Operations Support Squadron aircrew flight equipment (AFE) journeyman assigned to Kunsan Air Base, Republic of Korea, inspects a flight helmet, May 2, 2016, at Eielson Air Force Base, Alaska. AFE technicians perform inspections of pilots' equipment daily to ensure it functions properly. (U.S. Air Force photo by Staff Sgt. Ashley Nicole Taylor/Released)