Airman 1st Class Derek King, a 54th Aircraft Maintenance Unit F-16 crew chief, performs maintenance on an F-16 Fighting Falcon at Holloman Air Force Base, N.M. on May 3, 2017. The 54th AMU runs 24 hour operations. Therefore, Holloman’s maintenance Airmen work round-the-clock to keep these aircraft operable and flying. (U.S. Air Force photo by Airman 1st Class Alexis P. Docherty)