De Havilland DHC-6 Twin Otter crash, Dec 27, 2023, Lac de...
De Havilland DHC-6 Twin Otter accident on December 27, 2023 near Lac de Gras, Northwest Territories, Canada with no fatalities. Cause: TSB: the...
- Date: December 27, 2023
- Aircraft: De Havilland DHC-6 Twin Otter
- Location: Lac de Gras, Northwest Territories, Canada
- Fatalities: 0
- Phase of flight: Approach and landing
- Cause: TSB: the operator's oversight did not detect drift from standard procedures, the crew continued in deteriorating weather through plan continuation bias, relied too much on electronic flight bags, and descended below 50 feet above ground without visual reference during an improvised instrument approach.
An Air Tindi DHC 6 Twin Otter on a wheel ski flight to the Lac de Gras road camp made four approaches in deteriorating weather, descended below 50 feet without visual contact and hit rising terrain 1,850 meters from the landing site. Two passengers were seriously injured and the other eight aboard had minor injuries. The TSB cited weak oversight, plan continuation bias and overreliance on electronic flight bags.