Staff Sgt. Crystal Bennoch, 28th Operations Support Squadron NCO in-charge of airfield management operations, trains Airman 1st Class Justin Chung, 28th OSS airfield management coordinator, on properly inspecting the runway centerline markings at Ellsworth Air Force Base, S.D., March 13, 2015. Airfield management personnel are responsible for inspecting airfields to ensure a safe operating environment for aircraft operations. (U.S. Air Force photo by Senior Airman Anania Tekurio/Released)