724th EABS CE flight prepares for mobile air traffic control tower Published Oct. 30, 2018 By Tech. Sgt. Rachelle Coleman 435th Air Expeditionary Wing NIGERIEN AIR BASE 201, Niger -- U.S. Air Force Airman 1st Class Tyler Whitley, 724th Expeditionary Air Base Squadron heavy equipment operator, grades a ramp at Nigerien Air Base 201, Niger, Oct. 18, 2018. The 724th Expeditionary Air Base Squadron Civil Engineer Flight is responsible for sustainment and maintenance of the base and readying the base for flying operations. (U.S. Air Force photo by Tech. Sgt. Rachelle Coleman)