8 fatalities

Fatal Training Flight Crash East of Half Moon Bay (04439)

Half Moon Bay, United States of AmericaFlight

On June 1, 1942, a Consolidated PBY Catalina (registration 04439) operated by United States Navy - USN was involved in an aviation accident near Half Moon Bay, United States of America in flight. 8 people were killed. Investigators recorded the probable cause as: Controlled flight into terrain. 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 seaplane crashed into a mountainside east of Half Moon Bay during a training exercise, resulting in the deaths of all eight occupants on board.

What happened

The incident occurred while the aircraft was engaged in a training flight. The seaplane struck the slope of a mountain situated to the east of Half Moon Bay. The impact resulted in fatal injuries for everyone on board, with all eight occupants losing their lives.

Findings

The official investigation determined that the accident was caused by controlled flight into terrain. This classification indicates that the aircraft remained under pilot control until it collided with the ground or obstacles, rather than suffering a mechanical failure or loss of control prior to impact.

Probable cause

Controlled flight into terrain

Frequently asked questions

What happened in the 1 Jun 1942 Consolidated PBY Catalina accident near Half Moon Bay, United States of America?

A seaplane crashed into a mountainside east of Half Moon Bay during a training exercise, resulting in the deaths of all eight occupants on board.

Were there any fatalities in the 1 Jun 1942 Consolidated PBY Catalina accident?

The accident was fatal, resulting in 8 fatalities.

What aircraft was involved and where did it happen?

The accident on 1 Jun 1942 involved a Consolidated PBY Catalina, registration 04439, operated by United States Navy - USN, at Half Moon Bay, United States of America.

What was the probable cause of the accident?

Controlled flight into terrain