909th AMU members replace the engine of a KC-135R Stratotanker
U.S. Air Force Senior Airman Ty Deprez, 909th Aircraft Maintenance Unit aerospace propulsion journeyman, tightens a screw on part of the F108 engine, Nov. 4, 2015, at Kadena Air Base, Japan. Members from the 909th AMU work three shifts of six people a day to replace an F108 engine of a KC-135R Stratotanker. (U.S. Air Force photo by Naoto Anazawa)