13 fatalities

Loss of seaplane with 13 crew during SAR mission off Bermuda (1250)

Atlantic Ocean, WorldFlight

On June 3, 1942, a Martin PBM Mariner (registration 1250) operated by United States Navy - USN was involved in an aviation accident near Atlantic Ocean, World in flight. 13 people were killed. Investigators recorded the probable cause as: The exact cause was undetermined due to lack of evidence, though it is believed the aircraft was caught in a downdraft near 37° 31' N and 67° W. 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 seaplane crashed into the ocean approximately 100 km off Hamilton, Bermuda, while conducting a search and rescue mission. All 13 crew members were killed, and no wreckage was recovered.

What happened

The aircraft was operating on a search and rescue mission in response to the sinking of the British steamer *Westmoreland*, which had been attacked by a German U-boat. While flying at low altitude, the seaplane crashed into the ocean approximately 100 kilometers off Hamilton, Bermuda. The incident resulted in the deaths of all 13 crew members on board. Despite subsequent efforts, no trace of the aircraft or the personnel was ever recovered from the site.

Findings

Official investigations concluded that the exact cause of the accident could not be determined due to a lack of physical evidence. However, authorities believed that the aircraft likely encountered a downdraft near coordinates 37° 31' N and 67° W, which may have contributed to the loss of control and subsequent crash.

Probable cause

The exact cause was undetermined due to lack of evidence, though it is believed the aircraft was caught in a downdraft near 37° 31' N and 67° W.