Crash-aerien 31 MAR 1998 d'un British Aerospace BAe-748-378 Srs. 2B G-OJEM - London-Stansted Airport (STN)
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Statuts:Accident investigation report completed and information captured
Date:mardi 31 mars 1998
Type/Sous-type:Silhouette image of generic A748 model; specific model in this crash may look slightly different
British Aerospace BAe-748-378 Srs. 2B
Compagnie:Emerald Airways
Immatriculation: G-OJEM
Numéro de série: 1791
Année de Fabrication: 1982-04-01 (16 years )
Heures de vol:18352
Moteurs: 2 Rolls-Royce Dart 535-2
Equipage:victimes: 0 / à bord: 4
Passagers:victimes: 0 / à bord: 40
Total:victimes: 0 / à bord: 44
Dégats de l'appareil: Perte Totale
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:London-Stansted Airport (STN) (   Royaume Uni)
Phase de vol: Au décollage (TOF)
Nature:Charter National
Aéroport de départ:London-Stansted Airport (STN/EGSS), Royaume Uni
Aéroport de destination:Leeds/Bradford Airport (LBA/EGNM), Royaume Uni
The HS-748 was cleared for a runway 23 takeoff at 23:29. The first officer was the handling pilot and the takeoff was to be made with full dry power; the water methanol system was selected to standby. At an airspeed of 111 kt the Commander called 'vee one, rotate', the first officer moved the control column rearwards and the aircraft became airborne. Less than five seconds after the 'rotate' call, at an airspeed of 115 kt and a height of between 30 feet and 100 feet agl, the no. 2 engine suffered a catastrophic failure resulting in a sudden loss of power and an immediate substantial nacelle fire. The aircraft yawed 11deg to the right of the runway heading. The Commander took over control and the crew were told by the senior cabin attendant that the right engine was on fire. Engine power was reduced and the aircraft yawed 14.5° to the left of runway heading. Four seconds later, the sound of the engine fire warning bell was recorded. The aircraft was in the air for a total period of 27 seconds before it touched down.
The aircraft ran off the end of the runway at 62 kt., crossed the perimeter track and came to rest with the collapse of the nose landing gear.

Probable Cause:

"1. Significant reduction in the fatigue strength of the HP turbine disc due to surface corrosion.
2. Inadequate control of the fit between engine turbine assembly seal members, possibly influenced by inadequate turbine clamping bolt fit, causing sufficient reduction in the natural frequency of an HP turbine disc vibratory mode to allow its excitation within the normal operating speed range and consequent excessive stressing of the disc.
3. Fuel leakage from the engine bay fuel system, resulting in a major nacelle fire.
4. Failure to identify the turbine assembly seal member fit and HP turbine disc corrosion as possible contributors to disc fatigue damage after previous similar failures."

Accident investigation:

Investigating agency: AAIB
Status: Investigation completed
Duration: 3 years and 8 months
Accident number: AAIB AAR 3/01
Download report: Final report

Opérations de secours

AAIB issued 19 Safety Recommendations

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photo of BAe-748-378-Srs-2B-G-OJEM
accident date: 31-03-1998
type: BAe-748-378 Srs. 2B
registration: G-OJEM
photo of BAe-748-378-Srs-2B-G-OJEM
accident date: 31-03-1998
type: BAe-748-378 Srs. 2B
registration: G-OJEM
photo of HS-748-378-Srs-2B-G-OJEM
accident date: 31-03-1998
type: Hawker Siddeley HS-748-378 Srs.2B
registration: G-OJEM

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 London-Stansted Airport et Leeds/Bradford Airport est de 252 km (158 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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