Biscarosse - Biscarosse

The crew (engineers and pilots) were engaged in a test flight on this third prototype consisting of controls in flight following severe vibrations on the engines. While cruising at an altitude of 1,200 meters, the six engines seaplane lost a part on the right wing, went out of control and crashed into the sea about one km northwest of Le Cap Ferret. The crew of a trawler and a French Marine boat found some debris floating on water but unfortunately, all 12 occupants were killed. Crew: Robert Boissard, Chief Pilot, Mr. Dumonteil, mechanic, Kléber Coulé, mechanic, Henri Faugère, mechanic, Alexandre Lepêcheur, radio operator, Mr. Renaud, technical director, Mr. Remaury, technician, Adj Grezel, Mr. Malpot, engineer, Mr. Bouchery, techincal director, Mr. Martin, engineer, Mr. Brolin, engineer.

Flight / Schedule

Biscarosse - Biscarosse

Aircraft

Latécoère 631

Registration

F-WANU

MSN

03

Year of Manufacture

15

Date

March 28, 1950 at 05:30 PM

Type

CRASH

Flight Type

Test

Flight Phase

Flight

Crash Site

Lake, Sea, Ocean, River

Crash Location

Le Cap Ferret Gironde

Region

Europe • France

Coordinates

44.6309°, -1.2498°

Crash Cause

Technical failure

Narrative Report

On March 28, 1950 at 05:30 PM, Biscarosse - Biscarosse experienced a crash involving Latécoère 631, operated by Société d'Exploitation du Matériel Aéronautique Français, with the event recorded near Le Cap Ferret Gironde.

The flight was categorized as test and the reported phase was flight at a lake, sea, ocean, river crash site.

12 people were known to be on board, 12 fatalities were recorded, 0 survivors were identified or estimated. This corresponds to an estimated fatality rate of 100.0%.

Crew on board: 12, crew fatalities: 12, passengers on board: 0, passenger fatalities: 0, other fatalities: 0.

The listed crash cause is technical failure. The crew (engineers and pilots) were engaged in a test flight on this third prototype consisting of controls in flight following severe vibrations on the engines. While cruising at an altitude of 1,200 meters, the six engines seaplane lost a part on the right wing, went out of control and crashed into the sea about one km northwest of Le Cap Ferret. The crew of a trawler and a French Marine boat found some debris floating on water but unfortunately, all 12 occupants were killed. Crew: Robert Boissard, Chief Pilot, Mr. Dumonteil, mechanic, Kléber Coulé, mechanic, Henri Faugère, mechanic, Alexandre Lepêcheur, radio operator, Mr. Renaud, technical director, Mr. Remaury, technician, Adj Grezel, Mr. Malpot, engineer, Mr. Bouchery, techincal director, Mr. Martin, engineer, Mr. Brolin, engineer.

Aircraft reference details include registration F-WANU, MSN 03, year of manufacture 15.

Geospatial coordinates for this crash are approximately 44.6309°, -1.2498°.

Fatalities

Total

12

Crew

12

Passengers

0

Other

0

Crash Summary

The crew (engineers and pilots) were engaged in a test flight on this third prototype consisting of controls in flight following severe vibrations on the engines. While cruising at an altitude of 1,200 meters, the six engines seaplane lost a part on the right wing, went out of control and crashed into the sea about one km northwest of Le Cap Ferret. The crew of a trawler and a French Marine boat found some debris floating on water but unfortunately, all 12 occupants were killed. Crew: Robert Boissard, Chief Pilot, Mr. Dumonteil, mechanic, Kléber Coulé, mechanic, Henri Faugère, mechanic, Alexandre Lepêcheur, radio operator, Mr. Renaud, technical director, Mr. Remaury, technician, Adj Grezel, Mr. Malpot, engineer, Mr. Bouchery, techincal director, Mr. Martin, engineer, Mr. Brolin, engineer.

Cause: Technical failure

Occupants & Outcome

Crew On Board

12

Passengers On Board

0

Estimated Survivors

0

Fatality Rate

100.0%

Known people on board: 12

Operational Details

Schedule / Flight

Biscarosse - Biscarosse

Flight Type

Test

Flight Phase

Flight

Crash Site

Lake, Sea, Ocean, River

Region / Country

Europe • France

Aircraft Details

Aircraft

Latécoère 631

Registration

F-WANU

MSN

03

Year of Manufacture

15