U. S. Air Force Airman 1st Class Geoffrey Negrete, armament maintenance member assigned to the 18th Equipment Maintenance Squadron, reviews a technical order at Kadena Air Base, Japan, May 29, 2019. Every piece of equipment the Aerospace Ground Equipment flight services is accompanied by a technical order, which provides step-by-step procedures for all types of maintenance. (U.S. Air Force photo by Naoto Anazawa)