U.S. Air Force Staff Sgt. Eleno G. Silva, 317th Maintenance Squadron aerospace maintenance craftsman, monitors his coworker, U.S. Air Force Airman 1st Class Sam Houck, 317th Maintenance Squadron aerospace maintenance apprentice, inside a hangar at Dyess Air Force Base, Texas, March 30, 2017. Silva's supervision ensures the task is being done effectively, correctly and safely. (U.S. Air Force Photo by Airman Kylee Thomas)