Staff Sgt. Edwin Quinones (front) and Senior Airman Michael Nathan repair an F-15 Eagle engine on May 10, 2006 that was damaged by foreign object debris, known as FOD. Sergeant Quinones and Airman Nathan are aerospace propulsion technicians at the Florida Air National Guard's 125th Fighter Wing in Jacksonville. (U.S. Air Force photo/Staff Sgt. Shelley Gill)