In this photo taken July 14, 2010, a Boeing B-17F Flying Fortress that is undergoing restoration is parked in front of the massive doors of the Boeing Co.'s historic "Plant 2," in Seattle. After giving birth to some of the world's most significant aircraft, the outdated facility is scheduled to be torn down this fall. (AP Photo/Ted S. Warren)

Photo by: Ted S. Warren

In this photo taken July 14, 2010, a Boeing B-17F Flying Fortress that is undergoing restoration is parked in front of the massive doors of the Boeing Co.'s historic "Plant 2," in Seattle. After giving birth to some of the world's most significant aircraft, the outdated facility is scheduled to be torn down this fall. (AP Photo/Ted S. Warren)