No fatalities

Floatplane Crash into Sea After Takeoff from Borinquen (37-374)

Borinquen, Puerto RicoTakeoff (climb)

On March 26, 1941, a Sikorsky S-43 (registration 37-374) operated by United States Army Air Corps - USAAC (1926-1941) was involved in an aviation accident near Borinquen, Puerto Rico during takeoff. No fatalities were reported. Investigators recorded the probable cause as: Engine failure upon takeoff. 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 2026-08-26Data APIEditorial standards

A floatplane crashed into the ocean shortly after departing Borinquen due to an engine failure, with the fate of the crew remaining unknown.

What happened

The incident occurred immediately following departure from Borinquen. The aircraft, identified as a floatplane, experienced a mechanical issue involving its powerplant during the initial climb phase. This malfunction resulted in a loss of thrust, causing the machine to descend rapidly and impact the water surface shortly after leaving the ground.

Findings

Official investigations concluded that the primary factor leading to the accident was engine failure occurring at the moment of takeoff. Due to the nature of the crash into the sea and the lack of confirmed recovery data, the status of the personnel on board has not been established. No specific registration number or detailed aircraft model variant is provided in the available records for this event.

Probable cause

Engine failure upon takeoff

Frequently asked questions

What happened in the 26 Mar 1941 Sikorsky S-43 accident near Borinquen, Puerto Rico?

A floatplane crashed into the ocean shortly after departing Borinquen due to an engine failure, with the fate of the crew remaining unknown.

Were there any fatalities in the 26 Mar 1941 Sikorsky S-43 accident?

No fatalities were recorded in this accident.

What aircraft was involved and where did it happen?

The accident on 26 Mar 1941 involved a Sikorsky S-43, registration 37-374, operated by United States Army Air Corps - USAAC (1926-1941), at Borinquen, Puerto Rico.

What was the probable cause of the accident?

Engine failure upon takeoff