No fatalities

Seaplane crash into sea shortly after takeoff from Casco Grove (08409)

Casco Grove Coast Guard Station - LORAN Station (Attu Island), United States of AmericaTakeoff (climb)

On March 23, 1943, a Consolidated PBY Catalina (registration 08409) operated by United States Navy - USN was involved in an aviation accident near Casco Grove Coast Guard Station - LORAN Station (Attu Island), United States of America during takeoff. No fatalities were reported. Investigators recorded the probable cause as: Strong crosswinds destabilized the seaplane shortly after takeoff, causing it to lose altitude and crash into the sea. 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 2026-08-25Data APIEditorial standards

A seaplane carrying cargo crashed into the ocean immediately after departing Casco Grove due to strong crosswinds. All crew members escaped, with one sustaining minor injuries.

What happened

The aircraft was operating a cargo mission when it departed from the Casco Grove Coast Guard Station. The payload included 1,350 gallons of fuel stored in drums along with four bombs. Shortly after lifting off, while still at a low altitude of only a few meters, the seaplane encountered a strong gust of wind originating from the right side. This lateral force destabilized the aircraft, causing it to lose altitude rapidly and impact the water surface. Despite the crash, all occupants successfully evacuated the cabin. One member of the crew sustained minor injuries during the incident. The wreckage sank to a depth of 30 meters approximately 18 minutes after the initial impact.

Findings

Military authorities noted that weather conditions were severe at the time of the accident, with strong winds and rough sea states. It was recorded that four other aircraft managed to depart from the same location prior to this incident, though they also experienced significant difficulty during their takeoffs.

Probable cause

Strong crosswinds destabilized the seaplane shortly after takeoff, causing it to lose altitude and crash into the sea.

Frequently asked questions

What happened in the 23 Mar 1943 Consolidated PBY Catalina accident near Casco Grove Coast Guard Station - LORAN Station (Attu Island), United States of America?

A seaplane carrying cargo crashed into the ocean immediately after departing Casco Grove due to strong crosswinds. All crew members escaped, with one sustaining minor injuries.

Were there any fatalities in the 23 Mar 1943 Consolidated PBY Catalina accident?

No fatalities were recorded in this accident.

What aircraft was involved and where did it happen?

The accident on 23 Mar 1943 involved a Consolidated PBY Catalina, registration 08409, operated by United States Navy - USN, at Casco Grove Coast Guard Station - LORAN Station (Attu Island), United States of America.

What was the probable cause of the accident?

Strong crosswinds destabilized the seaplane shortly after takeoff, causing it to lose altitude and crash into the sea.