Left to right, Airman Jacob Cleary, Airman Michael Knight and Airman 1st Class Artur Troxell, 362nd Training Squadron A-10 crew chief apprentice Airmen, review and practice for their hands-on performance check at Sheppard Air Force Base, Jan. 5, 2018. The Airmen in Training said they get multiple performance checks throughout their stay here at Sheppard. The PCs include written and hands on assessments. (U.S. Air Force photo by Airman 1st Class Pedro Tenorio)