A member of the Columbia Reconstruction Project Team examines a piece of Columbia debris on the floor of the KSC RLV Hangar.

A member of the Columbia Reconstruction Project Team examines a piece of Columbia debris on the floor of the KSC RLV Hangar. Shipped from Barksdale Air Force Base, Shreveport, La., more than 70,000 items, weighing 78,000 pounds, about 36 percent of the Shuttle by weight, have been delivered to KSC for use in the mishap investigation. Ground teams have completed 78 percent of their primary search area, and airborne crews finished 80 percent of their assigned area. Search teams have completed 98 percent of the underwater searches in Lake Nacogdoches and Toledo Bend Reservoir.