BARKSDALE AFB, LA - (From left) Amn First Class Jason Edwards and Staff Sergeant Benjamin Norton, crew chief's with the 2d Aircraft Maintenance Unit, review a B-52H pre-flight checklist signifying a perfectly maintained plane. Amn Edwards and Sgt. Norton are responsible for the planes perfect checklist, an achievement reached by only a few crew chiefs. (USAF Photo By SSgt Stephen J. Otero, RELEASED)