909th AMU maintains flight readiness
U.S. Air Force Staff Sgt. Chirstopher Anderson, 909th Aircraft Maintenance Unit crew chief, reviews his technical orders during a routine ground refueling, Dec. 7, 2015, at Kadena Air Base, Japan. Technical orders are guides for repairing, maintaining and performing daily duties for maintainers to ensure consistent aircraft care throughout the Air Force. (U.S. Air Force photo by Airman Zackary A. Henry)