From left, Airman Benjamin Garcia and Airman Carmelie Bais, 363rd Training Suqadron armament weapons apprentice course students, and their instructor Tech. Sgt. Rattanak Nhok do a functional check on an A-10 Thunderbolt II's GAU-8 Avenger Cannon at Sheppard Air Force Base, Texas, Nov. 11, 2018. Bais and Garcia are checking the electrical systems while their Airmen in the flight deck tests the pilot's controls. The equipment they are using will show if the controls are functioning properly and if not, they will have to correct the issue. (U.S. Air Force photo by Airman 1st Class Pedro Tenorio)