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Accident description
Last updated: 18 July 2018
Date:Tuesday 10 July 2018
Type:Silhouette image of generic DH3T model; specific model in this crash may look slightly different
de Havilland Canada DHC-3T Vazar Turbine Otter
Operator:Taquan Air
Registration: N3952B
C/n / msn: 225
First flight: 1957
Engines: 1 Pratt & Whitney Canada PT6A-135A
Crew:Fatalities: 0 / Occupants: 1
Passengers:Fatalities: 0 / Occupants: 10
Total:Fatalities: 0 / Occupants: 11
Aircraft damage: Substantial
Location:Mount Jumbo, Prince of Wales Island, AK (   United States of America)
Phase: En route (ENR)
Nature:Domestic Non Scheduled Passenger
Departure airport:Steamboat Bay Seaplane Base, AK (WSB), United States of America
Destination airport:Ketchikan-Waterfront SPB, AK (WFB), United States of America
A DHC-3T Vazar Turbine Otter float plane impacted a Mount Jumbo on Prince of Wales Island in Alaska, USA in low cloud conditions.
The aircraft sustained substantial damage but all eleven occupants survived the accident.
The float plane had departed Steamboat Bay Seaplane Base to the west of Prince of Wales Island and was headed for Ketchikan, located to the east of the island.
The pilot became disoriented after encountering a cloud ceiling at 1,100 feet and deteriorating weather conditions. He attempted to climb to avoid the rising terrain but was unsuccessful.
Weather at the time of the incident was approximately two-mile visibility, three miles of ceiling, broken clouds at 1,200 feet, overcast at 1,700 feet and 58 degrees.

Controlled Flight Into Terrain (CFIT) - Mountain

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photo of de Havilland Canada DHC-3T Vazar Turbine Otter N3952B
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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 Steamboat Bay Seaplane Base, AK to Ketchikan-Waterfront SPB, AK as the crow flies is 126 km (78 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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