Staff Sgt. Christopher Bailey, 362nd Training Squadron instructor, observes Airman 1st Class Brendan Nguyen and Airman Chandler Courson, 362nd TRS crew chief apprentice course students, perform a pre-flight-basic post-flight inspection on an A-10 Thunderbolt at Sheppard Air Force Base, Texas, Feb. 1, 2018. The two inspections are completed to determine if the aircraft is airworthy or in need of maintenance. Nguyen and Courson are in block six of six and scheduled to graduate Feb. 7. (U.S. Air Force photo by Alan R. Quevy)