Senior Airman Otis Osborn, 28th Communications Squadron radio frequency transmissions technician, reviews a technical order during maintenance at the 28th CS Radio Maintenance shop on Ellsworth Air Force Base, S.D., Feb. 7, 2013. Airmen are required to utilize TOs during all maintenance procedures to ensure jobs are completed according to established specifications. (U.S. Air Force photo by Airman 1st Class Kate Thornton-Maurer/Released)