Descripción del Accidente ASN 19 SEP 1993 Swearingen SA227-AC Metro III F-GILN - Troyes-Barberey Airport
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Estado:Accident investigation report completed and information captured
Fecha:domingo 19 septiembre 1993
Hora:12:40
Tipo:Silhouette image of generic SW4 model; specific model in this crash may look slightly different
Swearingen SA227-AC Metro III
Operador:Airlec
Registración: F-GILN
Numéro de série: AC-458
Año de Construcción: 1981
Horas Totales de la Célula:13436
Motores: 2 Garrett TPE331-11U-611G
Tripulación:Fatalidades: 0 / Ocupantes: 2
Pasajeros:Fatalidades: 0 / Ocupantes: 17
Total:Fatalidades: 0 / Ocupantes: 19
Daños en la Aeronave: Anulado
Consecuencias: Written off (damaged beyond repair)
Ubicación:Troyes-Barberey Airport (   Francia)
Fase: Despegue (TOF)
Naturaleza:Vuelo Internacional No Programado
Aeropuerto de Salida:Troyes-Barberey Airport (LFQB), Francia
Aeropuerto de Llegada:London-Biggin Hill Airport (BQH/EGKB), Reino Unido
Descripción:
Metro III F-GILN was chartered to repatriate survivors from a serious bus accident to the U.K. The crew estimated that the aircraft was loaded at its maximum takeoff weight of 14500 lb. Actually, the airplane was 658 lb over its mtow. V1 and VR were calculated being 107 kts. The aircraft taxied to runway 18 for departure and the throttles were advanced. While accelerating through a speed of 100 kts, 1100 m down the runway, the copilot noted that the no. 2 engine power decreased from 93% to 40%. The captain then decided to abort the takeoff. The aircraft does not appear to slow down as expected, so the captain requested the no. 2 and after that the no. 1 engines to be stopped. The airplane could not be brought to a halt on the runway. At the end of the runway the Metro became airborne for one metre due to the raised lip of the runway. It skidded for 150 metres over loose ground and came to rest against a localizer antenna. The undercarriage had collapsed during the skid.

Probable Cause:

PROBABLE CAUSE (translated from French): The accident appears to be due to a combination of a positioning error of the Speed Levers at the time of take-off, leading to the overheating of both engines, which forced the take-off to stop, and to the preparation and insufficient management of the take-off, leading to an underestimation of the acceleration-stop distance and a late decision to reject the take-off.
Contributors to this accident:
- the fouling of the brakes, which reduced their performance,
- the failure to update the aircraft's base weight in the operations manual,
- the crew's very limited experience on SA227.

Accident investigation:
cover
Investigating agency: BEA
Status: Investigation completed
Accident number: Report f-ln930919
Download report: Final report

Fuentes:
» ICAO Adrep Summary 5/93 (#18)
» NRC Handelsblad
» PZC 20.9
» Scramble 173


Fotos

photo of Swearingen-SA227-AC-Metro-III-SE-GSO
accident date: 19-09-1993
type: Swearingen SA227-AC Metro III
registration: SE-GSO
 

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 Troyes-Barberey Airport to London-Biggin Hill Airport as the crow flies is 437 km (273 miles).

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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