Creative Speculation
In reply to the discussion: This message was self-deleted by its author [View all]SlipperySlope
(2,751 posts)Because they were considered a crime scene the investigation was managed by the FBI, and the NTSB never did official crash reports on them. Those reports you linked to just contained raw data, they weren't crash reports.
If you search the NTSB database for flight 93, here is the "report" you get:
NTSB Identification: DCA01MA065.
The docket is stored in the Docket Management System (DMS). Please contact Records Management Division
Scheduled 14 CFR operation of United Airlines
Accident occurred Tuesday, September 11, 2001 in Shanksville, PA
Probable Cause Approval Date: 03/07/2006
Aircraft: Boeing 757, registration: N591UA
Injuries: 44 Fatal.
The terrorist attacks of September 11, 2001 are under the jurisdiction of the Federal Bureau of Investigation. The Safety Board provided requested technical assistance to the FBI, and any material generated by the NTSB is under the control of the FBI. The Safety Board does not plan to issue a report or open a public docket.
The National Transportation Safety Board determines the probable cause(s) of this accident as follows:
The Safety Board did not determine the probable cause and does not plan to issue a report or open a public docket. The terrorist attacks of September 11, 2001 are under the jurisdiction of the Federal Bureau of Investigation. The Safety Board provided requested technical assistance to the FBI, and any material generated by the NTSB is under the control of the FBI.