The National Transportation Safety Board determines the
probable cause(s) of this accident as follows:
An explosion of the center wing fuel tank (CWT), resulting from ignition of the flammable fuel/air mixture in the tank.
The source of ignition energy for the explosion could not be determined with certainty, but,
http://www.ntsb.gov/ntsb/brief.asp?ev_id=20001208X06204&key=1
The NTSB was not involved in the recovery, reconstuction, nor determination of cause. This investigation was spearheaded by the FBI and the CIA, under complete control of the Clintons at the time. Therefore, any statement put out by the NTSB is based on what they were told to say by the Clinton spin machine. Go back and watch the CIA cartoon to see the end result of their "investigation." Witnesses were never allowed to testify. Journalists were arrested for trying to uncover the truth. The entire event was covered up and spun to the Clinton's political advantage during an election year.