Airman 1st Class Amber Burns, 28th Maintenance Squadron non-destructive inspection apprentice, examines a fuel manifold tube under a stereo-zoom microscope during an inspection at Ellsworth Air Force Base, S.D., Sept. 8, 2014. NDI is the examination of aerospace weapon systems components and support equipment for structural integrity using non-destructive inspection methods and fluid analysis. (U.S. Air Force photo by Senior Airman Zachary Hada/Released)