10 fatalities

Seaplane Crash Off Palau During Reconnaissance Mission (48165)

Koror, PalauFlight

On September 29, 1944, a Martin PBM Mariner (registration 48165) operated by United States Navy - USN was involved in an aviation accident near Koror, Palau in flight. 10 people were killed. Investigators recorded the probable cause as: The crash was caused by an engine failure that resulted in a loss of aircraft control. 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 crashed into the Pacific Ocean off Palau Island after losing control due to an engine failure during a reconnaissance mission, resulting in the deaths of all ten crew members.

What happened

The incident occurred while the aircraft was conducting a reconnaissance mission over the Pacific Ocean. During the operation, the flight crew encountered an engine failure. This mechanical issue led to a loss of control, causing the seaplane to descend into the water off the coast of Palau Island. The aircraft was destroyed in the crash and was subsequently lost. All ten crew members on board perished in the accident.

Findings

Official investigations identified the primary factor behind the tragedy as the mechanical malfunction that initiated the sequence of events. The loss of power from the engine prevented the pilots from maintaining control, leading directly to the impact with the sea.

Probable cause

The crash was caused by an engine failure that resulted in a loss of aircraft control.

Frequently asked questions

What happened in the 29 Sept 1944 Martin PBM Mariner accident near Koror, Palau?

A seaplane crashed into the Pacific Ocean off Palau Island after losing control due to an engine failure during a reconnaissance mission, resulting in the deaths of all ten crew members.

Were there any fatalities in the 29 Sept 1944 Martin PBM Mariner accident?

The accident was fatal, resulting in 10 fatalities.

What aircraft was involved and where did it happen?

The accident on 29 Sept 1944 involved a Martin PBM Mariner, registration 48165, operated by United States Navy - USN, at Koror, Palau.

What was the probable cause of the accident?

The crash was caused by an engine failure that resulted in a loss of aircraft control.