TSB Canada factual update on Fond-du-Lac
ATR 42 accident: aircraft had ice contamination on takeoff
The Transportation Safety Board of Canada (TSB) released a factual
update on its investigation (A17C0146) into the fatal ATR 42 aircraft accident
that occurred in Fond-du-Lac, Canada, on 13 December 2017.
The updates details the following sequence of events:
- On 13 December 2017, an ATR
42-320 aircraft operated by West Wind Aviation arrived at Fond-du-Lac
Airport at 17:25 central standard time.
- During the descent, the
aircraft encountered icing conditions and the anti-icing and de-icing
systems were activated. When the de-icing and anti-icing systems were
turned off, residual ice remained on portions of the aircraft.
- The aircraft stayed at the
Fond-du-Lac Airport to board new passengers and cargo.
- The operator, West Wind
Aviation, had some de-icing equipment in the terminal building at the
airport. The de-icing equipment that was available to WestWind Aviation in
Fond-du-Lac consisted of two ladders, a hand-held spray bottle with
electric blanket and wand, and a container of de-icing fluid. However, the
aircraft was not de-iced before takeoff, and the takeoff was commenced
with ice contamination on the aircraft.
- The aircraft departed
Fond-du-Lac Airport at 18:11 for Stony Rapids.
- At 18:12, shortly after
takeoff, the aircraft collided with trees and terrain less than a mile
west of the end of Runway 28.
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