U.S. Air Force Airman 1st Class Alison Coombs, 1st Operations Support Squadron Airfield Management shift lead, awaits approval to enter the flight line at Langley Air Force Base, Va., Oct. 16, 2015. Airfield management specialists ensure the flight line is safe for pilots to land and take-off. (U.S. Air Force photo by Airman 1st Class Derek Seifert/ Released)