Hickory dickory dock: Crew chiefs work around the clock
U.S. Air Force Airman 1st Class Caleb Butt, 31st Aircraft Maintenance Squadron crew chief, waits to tow an F-16 Fighting Falcon, Sept. 9, 2015, at Aviano Air Base, Italy. Crew chiefs work around the clock to ensure F-16s are mechanically ready to fly. (U.S. Air Force photo by Airman 1st Class Cary Smith/Released)