Part 30: Cameroon

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This plane crash takes us to the west African country of Cameroon, which is located next to the following countries: Nigeria, Equatorial Guinea, Republic of the Congo, Central African Republic, Gabon and Chad.

WARNINGS OF A PLANE CRASH

 Pictured above is the accident aircraft

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Pictured above is the accident aircraft.

Kenya Airways Flight 507 was a scheduled international passenger service between Abidjan, Ivory Coast, and Nairobi, Kenya with a stopover in Douala, Cameroon, operated by Kenya Airways. On the 5th of May 2007, the Boeing 737-800 aircraft serving the flight crashed immediately after takeoff from Douala International Airport (IATA: DLA, ICAO: FKKD) in Cameroon, killing all 114 occupants onboard.

The plane broke up into small pieces and came to rest mostly submerged in a mangrove swamp, 5.4 kilometres (3.4 mi; 2.9 nmi) to the south (176°) of the end of Douala International Airport's runway 12. There were no survivors. The investigation by the Cameroon Civil Aviation Authority determined that the pilots failed to notice and correct excessive bank following takeoff. This led to the loss of control and crash of the aircraft.

Flight 507 was one of three scheduled to depart from Douala Airport around midnight that day, with two other flights operated by Cameroon Airlines and Royal Air Maroc. The aircrew of the Cameroonian and the Moroccan companies elected to wait for the weather to improve, while the Kenya Airways crew decided to depart, as they had already been delayed over an hour and the pilot felt that the weather had improved enough for departure. The pilot in command nonetheless failed to seek takeoff clearance from the Airport Control Tower and the aircraft departed Douala at 00:06am local time on the 5th of May (23:06pm UTC on the 4th of May); the flight was due to arrive in Nairobi at 06:15am local time (03:15am UTC).

Once airborne, the plane had a tendency to bank right, which the captain countered by using his control wheel. Twenty-four seconds after take-off, at an altitude of 1,000 ft (300 m), the captain let go of the control wheel, and eighteen seconds later called out "Ok, command", indicating to the first officer to engage the autopilot. This command was not read back by the first officer indicating that he had not acknowledged the command and neither was there audio confirmation in the cockpit indicating that the autopilot had been engaged. In the 55 seconds that followed, the aircraft was being piloted by neither pilot nor the autopilot. This led to it gradually increasing its banking angle from less than 1°, at the time the captain let go of the control wheel, to 34° when the bank angle warning came on. The captain may have panicked at the sound of the banking angle warning, as he made a series of movements on the control wheel which only aggravated the situation. He moved the control wheel first left, then 40° right, then 11° to the left. With the plane banking at 50°, a belated attempt was made to engage the autopilot. The captain then tried to bring the plane under control by using the right rudder, causing it to bank further to the right. The first officer gave the control wheel near opposite commands to what the captain had done. The captain, on noticing this, engaged the autopilot, but by then the plane was banked at nearly 115° to the right at 2,290 ft (700 m) altitude and was in an unrecoverable situation. It crashed into a mangrove swamp less than two minutes after takeoff.

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