LEON HARRIS, CNN ANCHOR: We should get the final report today on the crash of TWA Flight 800, four years ago off Long Island, all 230 people on board that plane died, you will recall. This is the final day of a two-day meeting in Washington. And our Carl Rochelle has been following the story and the meetings. We go to Carl now live -- Carl.</s>CARL ROCHELLE, CNN CORRESPONDENT: Leon, good morning. The National Transportation Safety Board, yesterday at the hearing, eliminated those things that we had heard so much about: a bomb, a missile, a conspiracy theory, and pointed directly toward the center fuel tank of the airplane. Bernie Loeb, the chief investigator, described it this way:</s>BERNARD LOEB, DIR,, NTSB OFFICE OF AVIATION SAFETY: Our investigation confirmed the fuel -- that the fuel air vapor in the center wing tank was flammable at the time of the accident, and that a fuel air explosion with jet-a fuel was more than capable of generating the pressure needed to break apart the center wing tank and destroy the airplane.</s>ROCHELLE: Investigators say they may never know for sure what ignited the fuel vapors, but the most likely scenario is a short circuit involving a high-voltage wire outside the fuel tank, and a low voltage wire running directly into it, sending a high voltage electrical charge into the tank, something that should never happened. Now, the investigators have spent their additional time trying to figure out exactly how that happened. Part of the research, part of the investigation has led to almost 40 air-worthiness directives or mandatory fixes for fuel tanks to make them safer that had been issued by the FAA. It is also said to have led to a closer look at wiring. And that will be one of the focuses of the events that are going to take place in the second and final day of the investigation. And Leon, this will be the most extensive and expensive investigation in the 33-year history of the National Transportation Safety Board, ran more than four years -- Leon.</s>HARRIS: All right, thanks much, Carl Rochelle reporting live this morning from Washington.
NTSB Final Report on TWA Flight 800 Due Today