Lt. Col. Osama A. Khalil of the Egyptian air force is the most recent student in the 361st Training Squadron's aerospace ground equipment apprentice course to make perfect scores in the 87-academic-day training program at Sheppard Air Force Base, Texas. Khalil and other students in the class learned how to maintain and repair equipment that supplies electricity, hydraulics and air pressure to aircraft when they are undergoing maintenance on the ground. (Contributed photo)