U.S. Air Force Airman Bradley Brajkovich, a 354th Maintenance Squadron F-35A Lightning II Low Observable Aircraft Structural Maintenance journeyman, conducts a paste repair on an F-35 test panel Jan. 23, 2020, at the field training detachment on Eielson Air Force Base, Alaska. The course blends classroom academics and hands-on lessons to provide a dynamic learning environment for aircraft maintainers. (U.S. Air Force photo by Tech. Sgt. Jerilyn Quintanilla)