No ground power, no air power
An air conditioning unit’s electrical panel and a technical order are pictured at the 49th Maintenance Squadron Aerospace Ground Equipment’s shop at Holloman Air Force Base, N.M., on Jan. 12, 2017. Holloman’s AGE Airmen perform a wide variety of maintenance duties in support of aircraft maintenance and flying operations. They inspect, test and operate AGE, from air conditioners to complex generators, to ensure equipment serviceability. (U.S. Air Force photo by Airman 1st Class Alexis P. Docherty)