The Transportation Safety Board says a mechanical failure caused a small plane to veer off the runway and into a snowbank at the Iqaluit airport in 2011.
On March 12 of that year, a Bombardier Challenger 300 operated by Tri Marine Management Company departed Long Beach, Calif. It had two crew members and one passenger on board when it landed in Iqaluit that evening.
Upon touchdown, the nose wheel veered to the right and attempts to gain control were unsuccessful. The aircraft left the runway, travelled over frozen ground and stopped off the edge of the runway in a snowbank.
There were no injuries, and aircraft damage was limited to the nose and main landing gear.
The investigation found that a hydraulic valve failed to respond to steering commands, likely due to contamination, internal corrosion, and exposure to cold temperatures.
The TSB says Bombardier has conducted tests and made improvements to deal with the problem.