Senior Airman Bruce Allen, a 19th Aircraft Maintenance Squadron crew chief, performs a pre-flight check on the cargo deck of a C-130 Hercules on March 24, 2011, on the flightline of Little Rock Air Force Base, Ark. Airman Allen, along with other crew members, keeps the base aircraft flying the largest C-130 transport mission in the world. (U.S. Air Force Photo/Staff Sgt. Chris Willis)