489th MXS keeps aircraft “fit to fight”
U.S. Air Force Staff Sgt. Dennis Cobb, 489th Maintenance Squadron aircraft electrical and environmental systems specialist, inspects an overfill plug from a B-1B Lancer at Dyess Air Force Base, Nov. 19, 2016. The plugs are removed in order to drain oil from the aircraft. (U.S. Air Force photo by Senior Airman Kedesha Pennant)