The fuel good people
Staff Sgt. Erin Fields, 6th Maintenance Squadron aircraft fuel systems technician, inserts an air duct into the access door to a fuel tank on the KC-135 Stratotanker at MacDill Air Force Base, Fla. Oct. 1, 2013. The air duct purges out fuel fumes by circulating fresh air through the tank, which is necessary to provide a safe entry level for the technicians. (U.S. Air Force photo by Senior Airman Melanie Bulow-Kelly/Released)