U.S. Air Force Airman 1st Class Anthony Guevara, 23rd Component Maintenance Squadron propulsion technician, loosens a connection on the underside of a TF-34 engine used in A-10C Thunderbolt lls, Jan. 25, 2017, at Moody Air Force Base, Ga. Airmen from the propulsion flight are responsible for breaking down, refurbishing and repairing TF-34 engines to replace ones currently in use in A-10s. (U.S. Air Force photo by Airman 1st Class Daniel Snider)