Airman 1st Class Amber Burns, 28th Maintenance Squadron non-destructive inspection apprentice, examines a fuel manifold tube soaked in penetrant liquid for cracks under ultra-violet light during an inspection at Ellsworth Air Force Base, S.D., Sept. 8, 2014. It is vital to let the penetrant liquid completely absorb into a part allowing imperfections to be identified under ultra-violet light. (U.S. Air Force photo by Senior Airman Zachary Hada/Released)