Descripción del Accidente ASN 08 OCT 2008 de Havilland Canada DHC-6 Twin Otter 300 9N-AFE - Lukla-Tenzing-Hillary Airport (LUA)
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Estado:Accident investigation report completed and information captured
Fecha:mircoles 8 octubre 2008
Hora:07:31
Tipo:Silhouette image of generic DHC6 model; specific model in this crash may look slightly different
de Havilland Canada DHC-6 Twin Otter 300
Operador:Yeti Airlines
Registración: 9N-AFE
Numéro de série: 720
Año de Construcción: 1980
Horas Totales de la Célula:32925
Ciclos:65041
Motores: 2 Pratt & Whitney Canada PT6A-27
Tripulación:Fatalidades: 2 / Ocupantes: 3
Pasajeros:Fatalidades: 16 / Ocupantes: 16
Total:Fatalidades: 18 / Ocupantes: 19
Daños en la Aeronave: Destruido
Consecuencias: Written off (damaged beyond repair)
Ubicación:Lukla-Tenzing-Hillary Airport (LUA) (   Nepal)
Elevación del lugar del accidente: 2859 m (9380 feet) amsl
Fase: Aterrizaje (LDG)
Naturaleza:Vuelo Doméstico Programado
Aeropuerto de Salida:Kathmandu-Tribhuvan Airport (KTM/VNKT), Nepal
Aeropuerto de Llegada:Lukla-Tenzing-Hillary Airport (LUA/VNLK), Nepal
Número de Vuelo:YT101
Descripción:
The aircraft took off from Kathmandu Airport at 06:51 on a domestic flight to Lukla (LUA). Lukla Airport has a single runway, 06/24 which is situated at an elevation of 9380 feet. The 1600 feet long bitumen runway has an upslope of 11,75°. Runway 06 can only be used for landing.
Visibility was reported as poor as the Twin Otter came in to land. It contacted rocks near the runway, crashed and caught fire. The captain was the only survivor.

Probable Cause:

Cause:
The probable primary cause was flight crew's misjudgment, based on the weather information from all the preceding aircraft and Lukla Information, to enter into cloud patch on final wherein the aircraft encountered the rapidly uplifting fog on short final resulting in control flight into terrain.
a) Failure on the part of regulatory body and company safety management to check the wrong practices being followed by pilots especially in STOL airfields like Lukla on a timely basis.
b) AFIS personnel on duty not being able to declare airport closure due to high workload, stress and landing of preceding three aircraft in similar marginal weather condition.
c) Operator's priority of economical aspect over safety such as their unequal treatments between pilots landing in adverse weather and diverters, creating a 'Must Land' situation.

Accident investigation:

Investigating agency: Nepalese Investigation Commission
Status: Investigation completed
Accident number: final report
Download report: Final report

Fuentes:
» Yeti Airlines
» Nepalnews
» Hemant Arjyal
» Pilot blamed for air crash near Everest (The Age, 1-1-2009)


Fotos

photo of DHC-6-Twin-Otter-300-9N-AFE
9N-AFE
photo of DHC-6-Twin-Otter-300-9N-AFE
accident date: 08-10-2008
type: de Havilland Canada DHC-6 Twin Otter 300
registration: 9N-AFE
 

Video, social media

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 Kathmandu-Tribhuvan Airport to Lukla-Tenzing-Hillary Airport as the crow flies is 134 km (84 miles).
Accident location: Approximate; accuracy within a few kilometers.

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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DHC-6 Twin Otter

  • 930+ built
  • 256th loss
  • 167th accidente fatal
  • 18th worst accident (a la hora)
  • 20th worst accident (actualmente)
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 Nepal
  • 9th worst accident (a la hora)
  • 14th worst accident (actualmente)
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