Airfield lighting
Col. Brian McDaniel, 92nd Air Refueling Wing commander, looks on as Airman 1st Class Hunter Lester, 92nd Operations Support Squadron airfield management apprentice, annotates a burnt out light Oct. 20, 2015, at Fairchild Air Force Base, Wash. The 92nd OSS airfield management night-shift team conducts a check of all the lights on the airfield, to include taxiways, every two hours. (U.S. Air Force photo/Airman 1st Class Sean Campbell)