5 fatalities

Fatal seaplane accident during night landing in Port-Étienne (27.F.5)

Nouadhibou, MauritaniaLanding (descent or approach)

On October 23, 1957, a Short S.25 Sunderland (registration 27.F.5) operated by French Navy (Aéronavale - Marine Nationale) was involved in an aviation accident near Nouadhibou, Mauritania during landing or approach. 5 people were killed. Investigators recorded the probable cause as: The aircraft overturned while attempting to land on the water at night. 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 2026-06-14Data APIEditorial standards

A military seaplane overturned during a nighttime landing in Port-Étienne harbor, resulting in multiple fatalities among the crew.

What happened

During a night landing operation in the harbor of Port-Étienne, a seaplane operated by the 27F Squadron capsized. The accident occurred as the aircraft was attempting to touch down on the water at night. The impact or subsequent movement caused the aircraft to overturn, trapping several members of the crew.

In the immediate aftermath of the overturned aircraft, there were three fatalities and eight injuries reported among the personnel on board. The crew included pilots, radio operators, navigators, mechanics, and gunners. Following the initial accident, the situation worsened as two of the survivors succumbed to their injuries a few hours later.

Findings

  • The aircraft was performing a landing maneuver in a harbor environment.
  • The incident took place during nighttime operations.
  • Total fatalities eventually reached five following the deaths of two injured crew members.

Probable cause

The aircraft overturned while attempting to land on the water at night.

Frequently asked questions

What happened in the 23 Oct 1957 Short S.25 Sunderland accident near Nouadhibou, Mauritania?

A military seaplane overturned during a nighttime landing in Port-Étienne harbor, resulting in multiple fatalities among the crew.

Were there any fatalities in the 23 Oct 1957 Short S.25 Sunderland accident?

The accident was fatal, resulting in 5 fatalities.

What aircraft was involved and where did it happen?

The accident on 23 Oct 1957 involved a Short S.25 Sunderland, registration 27.F.5, operated by French Navy (Aéronavale - Marine Nationale), at Nouadhibou, Mauritania.

What was the probable cause of the accident?

The aircraft overturned while attempting to land on the water at night.