Accident
Last updated: 22 December 2014
Status:Definitief
Datum:zaterdag 3 februari 1951
Type:Silhouette image of generic DC4 model; specific model in this crash may look slightly different
Douglas DC-4-1009
Luchtvaartmaatschappij:Air France
Registratie: F-BBDO
Constructienummer: 42992
Bouwjaar: 1946
Bemanning:slachtoffers: 6 / inzittenden: 6
Passagiers:slachtoffers: 23 / inzittenden: 23
Totaal:slachtoffers: 29 / inzittenden: 29
Schade: Vernield
Gevolgen: Written off (damaged beyond repair)
Plaats:12 km (7.5 mijl) N of Buéa (   Kameroen) show on map
Fase: Kruisvlucht (ENR)
Soort vlucht:Internationale lijnvlucht
Vliegveld van vertrek:Douala Airport (DLA/FKKD), Kameroen
Vliegveld van aankomst:Niamey Airport (NIM/DRRN), Niger
Beschrijving:
The Air France DC-4, named "Ciel de Savoie", landed at Douala at 12:00 and after refueling took off at 14:08 on the leg to Niamey, Niger. This leg was part of the Air France service between Brazzaville, Congo and Paris. The flight plan indicated that the pilot intended to take the southern route to Niamey, avoiding higher terrain, with an en route altitude of 8500 feet. Some four minutes after takeoff the flight made a sharp climbing turn heading NNW, on a straight course to Niamey over the British Cameroon mountains. The plane possibly drifted towards higher terrain until it was heading for Cameroon Mountain (elevation: 13,354 feet). The crew were facing the sun. Seen through the mist the mountain was probably only partially or faintly visible. They probably saw the mountain until it was too late to climb over it. The pilot immediately made a sharp left turn but the plane hit the steeply rising terrain with the left wing. The aircraft then impacted the mountain at an altitude of about 8500 feet.

PROBABLE CAUSE: "On their own initiative the crew abandoned the current procedure and followed a different and inaccurate procedure. The navigation was not sufficiently accurate and the draft was not checked. Error of judgement and over-confidence when flying over mountain mass. "

Bronnen:
» ICAO Circular 31 (p.28-31)


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Kaart
Deze kaart geeft het vliegveld van vetrek weer en de geplande bestemming van de vlucht. De lijn tussen de vliegvelden geeft niet de exacte vliegroute weer.
De afstand tussen Douala Airport en Niamey Airport bedraagt 1333 km (833 miles).

This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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Douglas DC-4

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