NTSB plans to destroy reconstructed wreckage of TWA Flight 800 that has been used for training Updated Feb 25, 2021; The National Transportation Safety Board (NTSB) plans to destroy the reconstructed wreckage of TWA Flight 800 because it is no longer needed as an instructional tool. It will be 25 years ago this July 17 when the Boeing 747 bound for Paris exploded off Long Island minutes after takeoff from JKK Airport in New York City, killing all 230 people on board. The victims included 16 members of the French Club at Montoursville Area High School and five chaperones. The reconstructed aircraft is in a 30,000-square-foot hangar at the NTSB Training Center in Ashburn, Virginia, and for nearly 20 years it has been used in accident investigation training courses.