U.S. Air Force Staff Sgt. Russell Steward, 7th Logistics Readiness Squadron vehicle mechanic, troubleshoots the fuel injectors on a bobtail truck at Dyess Air Force Base, Texas, March 21, 2017. The types of repairs vary due to seasonal concerns, but starter troubles and leaks are the primary mechanical issues vehicle maintenance Airmen repair. (U.S. Air Force photo by Airman 1st Class April Lancto)