29 fatalities

1951-02-03: Douglas DC-4 (F-BBDO) — Air France — Mt Cameroun, Cameroon

Mt Cameroun, CameroonFlight

On February 3, 1951, a Douglas DC-4 (registration F-BBDO) operated by Air France was involved in an aviation accident near Mt Cameroun, Cameroon in flight. 29 people were killed. Investigators recorded the probable cause as: The crew's decision to deviate from the approved flight plan without verifying the new route led to a collision with terrain. 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)Primary reportUpdated 1781256837Data APIEditorial standards

A four-engine aircraft crashed into Mount Cameroon during a flight from Douala to Niamey, resulting in the deaths of all 29 people on board.

What happened

On the afternoon of the accident, a four-engine aircraft departed from Douala Airport at 14:08 local time, intended for a flight to Niamey. Shortly after departing, approximately four minutes into the flight, the crew altered the planned trajectory, steering the plane toward the northwest while maintaining an altitude of 8,500 feet.

Roughly twenty minutes following this deviation, the aircraft was operating in clear weather conditions. However, due to the sun's position, the pilot in command encountered visibility issues. During this period, the pilot identified a mountain directly ahead and attempted an abrupt left-hand maneuver. During this turn, the left wing made contact with trees, causing the aircraft to lose control. The plane subsequently struck Mount Cameroon and broke apart upon impact. There were 29 fatalities among the occupants, with no survivors.

Findings

Official investigations concluded that the crash was the result of a navigation error committed by the crew. After departing Douala, the flight crew chose to deviate from the established flight procedures and follow an unverified route. The investigation noted that the crew failed to adhere to the original flight plan or properly validate their improvised path. Additionally, investigators identified errors in judgment and overconfidence among the crew as contributing elements to the accident.

Probable cause

The crew's decision to deviate from the approved flight plan without verifying the new route led to a collision with terrain.