Détails:
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.
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.
» Nepalnews
» Hemant Arjyal
» Pilot blamed for air crash near Everest (The Age, 1-1-2009)
9N-AFE
accident date: 08-10-2008
type: de Havilland Canada DHC-6 Twin Otter 300
registration: 9N-AFE
| Statuts: | Accident investigation report completed and information captured |
| Date: | mercredi 8 octobre 2008 |
| Heure: | 07:31 |
| Type/Sous-type: |  de Havilland Canada DHC-6 Twin Otter 300 |
| Compagnie: | Yeti Airlines |
| Immatriculation: | 9N-AFE |
| Numéro de série: | 720 |
| Année de Fabrication: | 1980 |
| Heures de vol: | 32925 |
| Cycles: | 65041 |
| Moteurs: | 2 Pratt & Whitney Canada PT6A-27 |
| Equipage: | victimes: 2 / à bord: 3 |
| Passagers: | victimes: 16 / à bord: 16 |
| Total: | victimes: 18 / à bord: 19 |
| Dégats de l'appareil: | Détruit |
| Conséquences: | Written off (damaged beyond repair) |
| Lieu de l'accident: | Lukla-Tenzing-Hillary Airport (LUA) ( Népal)
|
| Élévation des lieux de l'accident: | 2859 m (9380 feet) amsl |
| Phase de vol: | A l'atterrissage (LDG) |
| Nature: | Transport de Passagers Nat. |
| Aéroport de départ: | Kathmandu-Tribhuvan Airport (KTM/VNKT), Népal |
| Lukla-Tenzing-Hillary Airport (LUA/VNLK), Népal | |
| Numéro de vol: | YT101 |
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:
|
Sources:
» Yeti Airlines» Nepalnews
» Hemant Arjyal
» Pilot blamed for air crash near Everest (The Age, 1-1-2009)
Photos
9N-AFE
accident date: 08-10-2008
type: de Havilland Canada DHC-6 Twin Otter 300
registration: 9N-AFE
Video, social media
Plan
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 Kathmandu-Tribhuvan Airport et Lukla-Tenzing-Hillary Airport est de 134 km (84 miles).
Accident location: Approximate; accuracy within a few kilometers.
La distance entre Kathmandu-Tribhuvan Airport et Lukla-Tenzing-Hillary Airport est de 134 km (84 miles).
Accident location: Approximate; accuracy within a few kilometers.
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.
languages: 
Népal
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DHC-6 Twin Otter
- 930+ built
- 256ème loss
- 167ème accident fatal
- le accident 18ème le plus grave (à ce moment là)
- le accident 20ème le plus grave (en ce moment)
Népal- le accident 9ème le plus grave (à ce moment là)
- le accident 14ème le plus grave (en ce moment)
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