Accident description
Last updated: 1 November 2014
Status:Final
Date:Sunday 18 August 1996
Time:ca 19:50
Type:de Havilland Canada DHC-3T Vazar Turbine Otter
Operator:Harbour Airá
Registration: C-GCMY
C/n / msn: 32
First flight: 1954
Engines: 1 Pratt & Whitney Canada PT6A-135
Crew:Fatalities: 1 / Occupants: 1
Passengers:Fatalities: 2 / Occupants: 2
Total:Fatalities: 3 / Occupants: 3
Airplane damage: Damaged beyond repair
Location:33 km (20.6 mls) S of Alliford Bay, BC (   Canada) show on map
Phase: En route (ENR)
Nature:Domestic Non Scheduled Passenger
Departure airport:Tasu Airport, BC (YTU), Canada
Destination airport:Alliford Bay, BC, Canada
Narrative:
Struck the side of a valley at 1,700 feet asl.

CAUSES AND CONTRIBUTING FACTORS: "The pilot probably made a navigational error because of restricted visibility in fog and light drizzle and entered the wrong valley, and he delayed his decision to reverse course until he was unable to avoid the weather."

Classification:
Controlled Flight Into Terrain (CFIT) - Mountain

Sources:

Official accident investigation report
investigating agency: Transportation Safety Board (TSB) - Canada
report status: Final
report number: TSB Report A96P0178
report released:14-MAY-1997
duration of investigation:269 days (9 months)
download report: Controlled Flight into Terrain, Harbour Air Limited, De Havilland DHC-3 Otter C-GCMY, Alliford Bay, British Columbia 18 nm S (TSB Report A96P0178)

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