6 fatalities

Four-engine aircraft crashes into sea off Florida coast (45-0519)

Sargasso Sea, WorldFlight

On July 3, 1947, a Douglas C-54 Skymaster (registration 45-0519) operated by United States Army Air Forces - USAAF (1941-1947) was involved in an aviation accident near Sargasso Sea, World in flight. 6 people were killed. Investigators recorded the probable cause as: The aircraft encountered violent turbulence within a frontal weather zone, causing the pilot to lose control, with possible structural failure as a contributing element prior to impact. 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 four-engine aircraft crashed into the ocean while cruising northeast of Florida after encountering severe thunderstorms and turbulence, resulting in the loss of all six occupants.

What happened

The four-engine aircraft departed Hamilton, Bermuda, with a destination of Morrison AFB in Palm Beach, Florida. During the cruise phase, approximately 294 miles northeast of the Florida coast, the crew encountered severe weather characterized by thunderstorm activity and intense turbulence. The aircraft subsequently lost control and impacted the sea. Search efforts recovered some debris, but no survivors were found among the six occupants, who were declared deceased.

Findings

The Accident Investigating Board at Morrison Field concluded that the primary cause was violent turbulence leading to a loss of control. While structural failure prior to impact could not be ruled out, there was no evidence of fire or an attempted ditching. Debris analysis indicated the crew compartment was torn apart upon contact with the water. The board identified contributing factors including possible navigational error that allowed the aircraft to drift north into the frontal zone and a failure by the pilot to circumnavigate the hazardous weather.

Probable cause

The aircraft encountered violent turbulence within a frontal weather zone, causing the pilot to lose control, with possible structural failure as a contributing element prior to impact.