Fred Dunn, left, a chartered engineer who excavated the Dorsal Queen, a B-17 Flying Fortress, crash site in 1978, holds up a piece of tubing Sept. 28, 2013, found by U.S. Air Force Master Sgt. Scott Castrovinci, noncommissioned officer in charge of Installation Security Section, at the crash site. Though the site was excavated in 1978, pieces of the B-17 can still be found in the field where it crashed. Dunn believed the tubing could be a piece of the aircraft. (U.S. Air Force photo by Airman 1st Class Preston Webb/Released)