U.S. Air Force Senior Airman Daniel Konik and Staff Sgt. Christopher Duerr, 633rd Civil Engineer Squadron pavements and equipment craftsmen, use a jack-hammer and a vacuum hose from a sweeper truck to repair sections of the runway at Langley Air Force Base, Va., Aug. 27, 2014. The 633rd CES pavements and equipment Airmen repaired a cracked portion of the runway and to help prevent foreign object damage to aircraft. (U.S. Air Force photo by Senior Airman Connor Estes/Released)