Air Force Staff Sgt. Lester Pruitt runs aircraft engine diagnostic
Air Force Staff Sgt. Lester Pruitt, an F-15C crew chief with the 44th Aircraft Maintenance Unit out of Kadena, Japan, runs a diagnostic on an F-15C engine during a preflight inspection June 16 at Elmendorf Air Force Base, Alaska (Photo by Sgt. Ricardo Branch, 8th Theater Sustainment Command Public Affairs).