Tech. Sgt. Romain Smith, 374th Civil Engineer Squadron NCO in charge of the electrical power production shop, measures the distance the aircraft arresting system took to stop an F-16 Fighting Falcon during an annual certification test at Yokota Air Base, Japan, April 29, 2020. The annual testing of the AAS is conducted by the 374th CES electrical power productions shop and fire department, as well as the 374th Operations Support Squadron airfield management flight. (U.S. Air Force photo by Machiko Arita)