Crash-aerien 12 DEC 2002 d'un British Aerospace BAe-146-200 G-JEAX - Birmingham
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Statuts:Accident investigation report completed and information captured
Date:jeudi 12 dcembre 2002
Type/Sous-type:Silhouette image of generic B462 model; specific model in this crash may look slightly different
British Aerospace BAe-146-200
Immatriculation: G-JEAX
Numéro de série: E2136
Année de Fabrication: 1989-06-30 (13 years 6 months)
Moteurs: 4 Lycoming ALF502R-5
Equipage:victimes: 0 / à bord: 5
Passagers:victimes: 0 / à bord: 36
Total:victimes: 0 / à bord: 41
Dégats de l'appareil: Aucun
Lieu de l'accident:près de Birmingham (   Royaume Uni)
Phase de vol: En vol (ENR)
Nature:Transport de Passagers Nat.
Aéroport de départ:Birmingham International Airport (BHX/EGBB), Royaume Uni
Aéroport de destination:Belfast City Airport (BHD/EGAC), Royaume Uni
Numéro de vol: 046
Flight BE 046 departed Birmingham at 12:52 for a flight back to Belfast. During the climb, the flight crew noticed that the aircraft was oscillating in pitch more than was customary. The autopilot remained engaged for significant portions of the climb but the level-off at FL240 was flown manually. Shortly after establishing level flight, the autopilot was re-engaged but the aircraft began to oscillate in pitch and diverge from its assigned flight level. The captain disengaged the autopilot and was immediately aware of a strong pitch-up tendency. He applied an increasing forward pressure on the control column and supplemented this with electric elevator trim in the nose-down sense. At FL242 the aircraft was reported to have pitched down at a marked rate. Having pitched to below the straight and level attitude, the captain then tried to counter this with a progressive rearwards force on the controls. Both pilots then pulled back with considerable force. The control column suddenly moved aft, the aircraft pitched up and the flight crew felt a violent shudder through the whole airframe that lasted for two or three seconds. After this the control forces returned to normal and they were able to level the aircraft at FL240. During the pitching manoeuvres, two of the three cabin crew had fallen in the cabin aisle, sustaining serious injuries. The elevator control difficulties might have been caused by natural icing; investigation is still ongoing.

Probable Cause:

PROBABLE CAUSE: "Exposure of the aircraft to precipitation on the ground in near freezing conditions prior to take off, resulting in accumulations of snow, rain or hail in the elevator/servo tab gaps which then freeze in flight."

Accident investigation:

Investigating agency: AAIB (U.K.)
Status: Investigation completed
Duration: 1 year and 2 months
Accident number: AAIB S1/2003
Download report: Final report

Opérations de secours

AAIB issued 6 Safety Recommendations

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Ce plan montre l'aéroport de départ ainsi que la supposée destination du vol. La ligne fixe reliant les deux aéroports n'est pas le plan de vol exact.
La distance entre Birmingham International Airport et Belfast City Airport est de 361 km (226 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 tel qu'ils sont connus à ce jour.
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