U.S. Air Force Staff Sgt. Nicholas Otos, 733rd Air Mobility Squadron avionics technician craftsman, completes the avionics fault checklist for the C-17 Globemaster III on Kadena Air Base, Japan, Sept. 9, 2014. The fault checklist is one of the means the 733rd AMS uses to ensure safe operation of the aircraft they maintain. (U.S. Air Force photo by Airman 1st Class Zackary A. Henry)