U.S. Air Force Staff Sgt. Condrienne Rice, a 52nd Component Maintenance Squadron propulsion flight technician and native of Montgomery, Ala., wipes down the bottom of an F-16 Fighting Falcon fighter aircraft engine Sept. 9, 2014. After maintenance, Airmen do a final check of loose nuts and parts while wiping the engine of excess oil and hydraulic fluid before sending it to be tested. (U.S. Air Force photo by Senior Airman Gustavo Castillo/Released) 