180418-F-YK359-1027
U.S. Air Force Airman 1st Class Gabriel Castaneda, a 354th Maintenance Squadron jet intermediate maintenance (JEIM) technician, inspects the exhaust of an F-16 Fighting Falcon engine April 18, 2018, at Eielson Air Force Base, Alaska. As a JEIM technician, Castaneda has the opportunity to help diagnose engine problems in aircraft brought to him from across the entire Pacific Air Forces. (U.S. Air Force photo by Senior Airman Isaac Johnson)