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Last updated: 17 December 2018
Status:Schlussbericht
Datum:Samstag 5 Mai 2007
Zeit:00:08
Flugzeugtyp:Silhouette image of generic B738 model; specific model in this crash may look slightly different
Boeing 737-8AL
Fluggesellschaft:Kenya Airways
Kennzeichen: 5Y-KYA
Werknummer: 35069/2079
Baujahr: 2006-10-09 (7 months)
Betriebsstunden:2100
Anzahl Zyklen der Zelle:734
Triebwerk: 2 CFMI CFM56-7B26
Besatzung:Todesopfer: 6 / Insassen: 6
Fluggäste:Todesopfer: 108 / Insassen: 108
Gesamt:Todesopfer: 114 / Insassen: 114
Sachschaden: Zerstört
Konsequenzen: Written off (damaged beyond repair)
Unfallort:5,5 km (3.4 Meilen) SE of Douala Airport (DLA) (   Kamerun)
Flugphase: Während des Fluges (ENR)
Betriebsart:Internationaler Linienflug
Flug von:Douala Airport (DLA/FKKD), Kamerun
Flug nach:Nairobi-Jomo Kenyatta International Airport (NBO/HKJK), Kenia
Flugnummer: 507
Unfallbericht:
A Boeing 737-800 passenger plane, registered 5Y-KYA, was destroyed when it impacted terrain shortly after takeoff from Douala Airport (DLA), Cameroon. All 108 passengers and six crew members were killed in the accident.
The airplane was operated by Kenya Airways as flight KQ507 from Abidjan Airport (ABJ), Ivory Coast to Nairobi (NBO), Kenya via Douala (DLA), Cameroon. The flight from Abidjan to Douala was reportedly conducted without incident.
The flight arrived about 22:00 hours local time, May 4. The scheduled departure time of 23:00 was delayed due to weather which consisted of thunderstorms with heavy rain showers. When the weather improved, flight 507 taxied to runway 12. The aircraft took off and climbed into the dark night. There were no external visual references, yet no instrument scanning was done by the crew. At 1000 feet climbing, the pilot flying released the flight controls for 55 seconds without having engaged the autopilot. The bank angle of the airplane increased continuously by itself very slowly up to 34 degrees right and the captain appeared unaware of the airplane’s changing attitude.
Just before the "Bank Angle" warning sounds, the captain grabbed the controls, appeared confused about the attitude of the airplane, and made corrections in an erratic manner increasing the bank angle to 50 degrees right.
At about 50 degrees bank angle, the autopilot was engaged and the inclination tended to stabilize; then movements of the flight controls by the pilot resumed and the bank angle increased towards 70 degrees right. A prolonged right rudder input brought the bank angle to beyond 90 degrees. The airplane descended in a spiral dive and crashed into a mangrove swamp.

Probable Cause:

PROBABLE CAUSE: "The airplane crashed after loss of control by the crew as a result of spatial disorientation (non recognized or subtle type transitioning to recognized spatial disorientation), after a long slow roll, during which no instrument scanning was done, and in the absence of external visual references in a dark night.
Inadequate operational control, lack of crew coordination, coupled with the non-adherence to procedures of flight monitoring, confusion in the utilization of the AP, have also contributed to cause this situation."

Accident investigation:
cover
Investigating agency: CCAA
Status: Investigation completed
Duration: 2 years and 12 months
Accident number: Final report
Download report: Final report

Informationsquelle:
» Kenya Airways press release
» Kenya Airways plane crashes in Cameroon: radio (AP, 5-5-2007)
» Reconstructing the last moments of Kenya Airways Flight 507 (AP, 12-5-2007)
» Cameroon Civil Aviation Authority press release


Sicherheitsempfehlungen

CCAA issued 3 Safety Recommendations

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Fotos

photo of Boeing 737-8AL 5Y-KYA
5Y-KYA seen on delivery as flight KQ101F
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Map
This map shows the airport of departure and the intended destination of the flight. The line between the airports does not display the exact flight path.
Distance from Douala Airport to Nairobi-Jomo Kenyatta International Airport as the crow flies is 3066 km (1916 miles).
Accident location: Exact; as reported in the official accident report.

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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