Non-destructive inspection
Staff Sgt. Corey Fletcher looks at X-rays from an MH-53 Pave Low engine air particle separator at Royal Air Force Base Mildenhall, England, on Tuesday, June 20. Sergeant Fletcher checks for structural flaws, cracks, defects and foreign object damage in aircraft parts by using X-rays and flourescent green penetrant. He is a non-destructive inspection specialist with the 100th Maintenance Squadron. (U.S. Air Force photo/Staff Sgt. Tyrona Pearsall)