Markers for three of the five area residents killed in the crash of TWA Flight 800 are lined up in a cemetery near the Cumberland Presbyterian Church in Stevenson, Ala., in this 2006 photo.

NEW YORK - Former investigators of the TWA Flight 800 crash off Long Island are calling on the National Transportation Safety Board to re-examine the case.

The retired investigators claim that findings were "falsified." A documentary on the subject is coming out in July.

The 1996 crash of the Paris-bound flight killed 230 people.

Initial speculation ranged from maintenance problems to a bomb and even a meteorite. Some critics theorized that a Navy missile accidentally brought down the jetliner.

The NTSB concluded that Flight 800 was destroyed by a center fuel tank explosion, probably caused by a spark from a short-circuit in the wiring.

The agency said today its four-year probe remains one of its "most detailed investigations."

The board said it would review any petition it receives from the documentary's producers.