230 fatalities

TWA Flight 800 mid-air explosion and crash (N93119)

East Moriches, United States of AmericaFlight

On July 17, 1996, a Boeing 747-100 (registration N93119) operated by Trans World Airlines - TWA was involved in an aviation accident near East Moriches, United States of America in flight. 230 people were killed. Investigators recorded the probable cause as: An explosion within the center wing fuel tank caused by the ignition of a flammable fuel-air mixture, likely triggered by electrical energy entering through the fuel quantity indication system wiring. This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A); 8 related events involving the same aircraft type or operator are linked below.

Sourcesthe Bureau of Aircraft Accidents Archives (B3A)Primary report: the U.S. National Transportation Safety Board (NTSB) Aircraft Accident ReportsUpdated 2026-06-13Data APIEditorial standards
Boeing 747-100
Photo: Tosaka / CC BY 3.0, via Wikimedia Commons

A Boeing 747 flying from New York to Paris exploded over the Atlantic Ocean, resulting in the loss of all 230 people on board.

What happened

On the evening of July 17, 1996, a scheduled international passenger flight operated by Trans World Airlines (TWA) experienced a catastrophic mid-air breakup. The aircraft, a Boeing 747-131 registered as N93119, departed from John F. Kennedy International Airport in New York at approximately 20:19 EDT, bound for Paris, France. During the climb phase of the flight, near East Moriches, New York, the aircraft crashed into the Atlantic Ocean.

The flight was carrying a total of 230 individuals, consisting of 212 passengers and 18 crew members, including pilots, flight engineers, and flight attendants. The impact and subsequent destruction of the aircraft resulted in 230 fatalities. At the time of the accident, weather conditions were visual, though the flight was operating under instrument flight rules.

Findings

Investigations into the wreckage determined that the primary cause of the accident was a fuel/air explosion within the center wing fuel tank (CWT). This explosion led to the structural failure and subsequent breakup of the aircraft in flight. Evidence indicated that no missile or bomb was involved in the destruction of the plane.

While the exact mechanism for the ignition energy release could not be definitively identified, investigators concluded it likely entered the CWT via the wiring for the fuel quantity indication system. The investigation highlighted significant concerns regarding the design and certification of the aircraft, specifically noting that heat sources located beneath the center wing tank were not adequately mitigated to prevent the flammable fuel vapors from reaching an explosive state.

Probable cause

An explosion within the center wing fuel tank caused by the ignition of a flammable fuel-air mixture, likely triggered by electrical energy entering through the fuel quantity indication system wiring.

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Frequently asked questions

What happened in the 17 Jul 1996 Boeing 747-100 accident near East Moriches, United States of America?

A Boeing 747 flying from New York to Paris exploded over the Atlantic Ocean, resulting in the loss of all 230 people on board.

Were there any fatalities in the 17 Jul 1996 Boeing 747-100 accident?

The accident was fatal, resulting in 230 fatalities.

What aircraft was involved and where did it happen?

The accident on 17 Jul 1996 involved a Boeing 747-100, registration N93119, operated by Trans World Airlines - TWA, at East Moriches, United States of America.

What was the probable cause of the accident?

An explosion within the center wing fuel tank caused by the ignition of a flammable fuel-air mixture, likely triggered by electrical energy entering through the fuel quantity indication system wiring.