Accident
Last updated: 2 September 2014
Statuts:Enquête Officielle
Date:dimanche 29 octobre 2006
Heure:11:30
Type/Sous-type:Silhouette image of generic B732 model; specific model in this crash may look slightly different
Boeing 737-2B7
Compagnie:ADC Airlines
Immatriculation: 5N-BFK
Numéro de série: 22891/988
Année de Fabrication: 1983-09-27 (23 years 1 months)
Heures de vol:56411
Cycles:44465
Moteurs: 2 Pratt & Whitney JT8D-17
Equipage:victimes: 4 / à bord: 5
Passagers:victimes: 92 / à bord: 100
Total:victimes: 96 / à bord: 105
Dégats de l'appareil: Détruit
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:Abuja International Airport (ABV) (   Nigéria) show on map
Élévation des lieux de l'accident: 342 m (1122 feet) amsl
Phase de vol: En montée initiale (ICL)
Nature:Transport de Passagers Nat.
Aéroport de départ:Abuja International Airport (ABV/DNAA), Nigéria
Aéroport de destination:Sokoto Airport (SKO/DNSO), Nigéria
Numéro de vol: 053
Détails:
A Boeing 737-200 passenger plane, registered 5N-BFK, was destroyed when it crashed near Abuja International Airport (ABV), Nigeria. There were 100 passengers on board and five crew members. Eight passengers and one crew member survived the accident.
ADC Airlines Flight 53 departed Lagos (LOS) on a scheduled domestic flight to Sokoto (SKO) with an intermediate stop at Abuja (ABV). At Abuja at 11:14 local time, the crew of the aircraft requested start-up clearance. This was given along with the prevailing weather information. At 11:21, the crew requested clearance to taxi to the holding point and a wind check; both were given. Over the following six minutes Abuja Tower gave a series of six wind reports, including a statement emphasising the gusty nature of the wind. A thunderstorm was approaching the airport and weather was worsening. At 11:26, the crew of flight 53 requested clearance for immediate take-off, and the controller re-emphasized the deteriorating weather condition and gave latest wind check, which they acknowledged.
Immediately after takeoff from runway 22, the Boeing 737 entered into a headwind -shift to-tailwind windshear, which significantly affected the aerodynamic performance of the airplane.
The Pilot Flying responded to the windshear by adding a small amount of power and by pulling back on the control column causing a significant pitch attitude change.
The Pilot-not-flying responded to the windshear by calling for the Pilot Flying to pull up. The airplane then entered into a full aerodynamic stall followed by a roll to the left of over 90 degrees and steep descent into the ground. The aircraft was pitched to an attitude that resulted in the temporary disruption of airflow to and momentary loss of power in both engines. The airplane broke up and caught fire in a corn field.

The Abuja weather reported at the day of the accident included:
DNAA 290800Z 00000KT CAVOK 27/24 Q1012 NOSIG=
DNAA 291000Z 27006KT 9999 BKN012 30/24 Q1011 NOSIG=
DNAA 291300Z 00000KT 9999 FEW010 FEW020CB BKN100 25/22 Q1009 NOSIG=
DNAA 291400Z 00000KT 9999 FEW010 FEW020CB BKN100 26/23 Q1008 TEMPO 06022G35KT 5000 TS=


CAUSAL FACTOR:
The pilot's decision to take-off in known adverse weather conditions and failure to execute the proper windshear recovery procedure resulted in operating the aircraft outside the safe flight regime, causing the aircraft to stall very close to the ground from which recovery was not possible.
CONTRIBUTORY FACTORS:
(1) Inability of the flight crew to apply windshear recovery procedures and the use of inappropriate equipment for windshear recovery procedure during simulator recurrrecncy. Lack of company Standard Operating Procedures (SOP) for flight operations in adverse weather conditions.
(2) The coordination of responsibilities between the pilot-flying (PF) and pilot not flying(PNF) during their encounter with adverse weather situation was inconsistent with Standard Operating Procedures (SOP) for the duties of the pilot-flying (PF) and pilot not flying(PNF) resulting in the inadequate control of the aircraft.

Sources:
» 100 Feared Killed in ADC Air Crash (This Day 29-10-2006)
» FG Suspends ADC Operating Licence (This Day 31-10-2006)


Opérations de secours
On October 30, 2006, the suspended the Air Operators Certificate of ADC Airlines indefinitely.

AIB NG issued 5 Safety Recommendations

Show all AD's and Safety Recommendations

Photos

photo of Boeing 737-2B7 5N-BFK
photo of Boeing 737-2B7 N279AU
N279AU was sold to ADC Airlines as 5N-BFK in September 2003.
Add your photo of this accident or aircraft
 

Aircraft history
date registration operator remarks
27 SEP 1983 N323AU US Air
15 NOV 1988 N279AU US Air new registration
27 FEB 1997 N279AU US Airways airline renamed
N279AU Metrojet transferred
02 SEP 2003 5N-BFK ADC Airlines

Plan
Ce plan montre l'aéroport de départ ainsi que la supposé destination du vol. La ligne fixe reliant les deux aéroports n'est pas le plan de vol exact.
La distance entre Abuja International Airport et Sokoto Airport est de 487 km (304 miles).

Les informations ci-dessus ne représentent pas l'opinion de la 'Flight Safety Foundation' ou de 'Aviation Safety Network' sur les causes de l'accident. Ces informations prélimimaires sont basées sur les faits tels qui sont connus à ce jour.
languages: English Français Nederlands Deutsch Espanol

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