190521-F-OD616-0003
Avionics technician Staff Sgt. Lance Mosley, 309th Aircraft Maintenance Group Expeditionary Depot Maintnenance, installs a sheet metal repair during an exercise at Hill Air Force Base, Utah, May 21, 2019. The unit is the Air Force's sole source for aircraft battle damage repair for F-16 Fighting Falcons, A-10 Thunderbolt IIs and F-22 Raptors. (U.S. Air Force photo by R. Nial Bradshaw)