10 fatalities

Midair Explosion Over Atlantic Ocean During Transatlantic Flight (41-24463)

Atlantic Ocean, WorldFlight

On September 5, 1942, a Boeing B-17 Flying Fortress (registration 41-24463) operated by United States Army Air Forces - USAAF (1941-1947) was involved in an aviation accident near Atlantic Ocean, World in flight. 10 people were killed. Investigators recorded the probable cause as: The exact cause was undetermined, but the explosion coincided with the activation of the bomb bay overload fuel tank and may have resulted from an electrical fault. 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)Source recordUpdated 2026-08-05Data APIEditorial standards

A military aircraft departed Gander Airport for RAF Thurleigh but exploded in midair over the Atlantic Ocean approximately one hour into the flight, resulting in the deaths of all ten crew members on board.

What happened

The aircraft took off from Gander Airport with a mission to reach RAF Thurleigh. The flight was carrying a full complement of 10 crew members. Approximately one hour after departure, while traversing the airspace between Canada and Greenland, the airplane suffered a catastrophic failure. The airframe exploded in midair and subsequently crashed into the Atlantic Ocean. There were no survivors; all ten individuals on board perished in the incident.

Findings

Investigations into the event concluded that the precise cause of the accident could not be definitively established. However, official findings noted a temporal correlation between the explosion and the scheduled activation of the bomb bay overload fuel tank. Authorities suggested that an electrical fault may have been the underlying factor triggering the disaster.

Probable cause

The exact cause was undetermined, but the explosion coincided with the activation of the bomb bay overload fuel tank and may have resulted from an electrical fault.