".....the flight data recorder (which had been located near the rear of the aircraft) [was] also found nearly 300 ft into the structure."

This once again is most likely what the FBI told the ASCE. This is diametrically opposed to what the people who found the block boxes said and what the NTSB confirmed. One cockpit seat from the nose of an aircraft and both "black boxes" were found right at the impact site. I have actually interviewed a rescuer that was on the scene and they personally saw the black boxes at the impact site right after they were discovered.

"Early Friday morning, shortly before 4 a.m., Burkhammer and another firefighter, Brian Moravitz were combing through debris near the impact site. Peering at the wreckage with their helmet lights, the two spotted an intact seat from the plane's cockpit with a chunk of the floor still attached. Then they saw two odd-shaped dark boxes, about 1.5 by 2 feet long. They'd been told the plane's 'black boxes' would in fact be bright orange, but these were charred black. The boxes had handles on one end and one was torn open. They cordoned off the area and called for an FBI agent, who in turn called for someone from the National Transportation Safety Board (NTSB) who confirmed the find: the black boxes from AA Flight 77." Newsweek

There are more quotes regarding this on the Collapse Zone page of this site. The graph above is a total fabrication like the damage to the columns around the exit hole. Keep in mind this is what the 9/11 Commission used to "inform" all of America as to what happened.