Army Sgt. Keoni Sablan, 639th Automated Cargo Detachment transportation management coordinator, backs a truck up onto a weight machine on Aug. 18, 2018, at Travis Air Force Base, Calif. The 55th Aerial Port Squadron held a training session for the 639th ACD on the inspection process for loading cargo. (U.S. Air Force photo/Staff Sgt. Daniel Phelps)