Détails:
After departing the floatplane base on a company VFR flight plan, the Otter proceeded northwest along a salt water strait at a low altitude above water. Two miles Northwest of the airport the aircraft entered a snow squall and the pilot attempted a steep turn to reverse course. During the turn the aircraft impacted and sank in 167 feet deep water.
PROBABLE CAUSE: "The pilot's inadvertant flight into ifr conditions and the stall which occurred during the turn to reverse course. Contributing to the accident were the snow conditions encountered."
| Statuts: | Accident investigation report completed and information captured |
| Date: | dimanche 15 janvier 1989 |
| Heure: | 08:10 |
| Type/Sous-type: |  de Havilland Canada DHC-3 Otter |
| Compagnie: | Temsco Helicopters |
| Immatriculation: | N11250 |
| Numéro de série: | 171 |
| Année de Fabrication: | 1957 |
| Heures de vol: | 10366 |
| Moteurs: | 1 Pratt & Whitney R-1340-59 |
| Equipage: | victimes: 1 / à bord: 1 |
| Passagers: | victimes: 1 / à bord: 1 |
| Total: | victimes: 2 / à bord: 2 |
| Dégats de l'appareil: | Détruit |
| Conséquences: | Written off (damaged beyond repair) |
| Lieu de l'accident: | près de Ketchikan, AK ( Etats-Unis d'Amérique)
|
| Phase de vol: | En vol (ENR) |
| Nature: | Charter National |
| Aéroport de départ: | Ketchikan Harbor Seaplane Base, AK (WFB), Etats-Unis d'Amérique |
| Klawock Airport, AK (KLW/PAKW), Etats-Unis d'Amérique |
After departing the floatplane base on a company VFR flight plan, the Otter proceeded northwest along a salt water strait at a low altitude above water. Two miles Northwest of the airport the aircraft entered a snow squall and the pilot attempted a steep turn to reverse course. During the turn the aircraft impacted and sank in 167 feet deep water.
Probable Cause:
PROBABLE CAUSE: "The pilot's inadvertant flight into ifr conditions and the stall which occurred during the turn to reverse course. Contributing to the accident were the snow conditions encountered."
Accident investigation:
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Sources:
» NTSBPhotos
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 Ketchikan Harbor Seaplane Base, AK et Klawock Airport, AK est de 92 km (58 miles).
La distance entre Ketchikan Harbor Seaplane Base, AK et Klawock Airport, AK est de 92 km (58 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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