Airman 1st Class Reginald Brown, a phase dock crew chief with the 451st Expeditionary Aircraft Maintenance Squadron at Kandahar Airfield, Afghanistan, works on components inside an F-16 while the plane is undergoing a phase inspection on June 26, 2012. A phase inspection, done in the phase dock, is completed every 400 hours of flying time and is a detailed inspection of the aircraft. (U.S. Air Force photo/Tech Sgt. Stephen Hudson)