Tech. Sgt. John Scarcella, 451st Expeditionary Maintenance Squadron, conducts a phase inspection on an A10 Thunderbolt II in a hangar in Kandahar, Afghanistan, Feb. 24, 2010. This phase inspection is conducted after every 500 hours of flight. Sergeant Scarcella is a traditional Guardsman from the 175th Maintenance Squadron, Maryland Air National Guard. (U.S. Air Force photo by Senior Airman Nancy Hooks)