AT43, Naujaat Canada, 2020

AT43, Naujaat Canada, 2020

Summary

On 26 November 2020, abnormally low left-engine propeller speed was observed as an ATR 42-300 descended into Naujaat with other engine parameters normal. Relevant abnormal procedures were not consulted, and on reverse pitch selection after touchdown, neither pilot noticed the left engine's low prop pitch indication was not illuminated. The aircraft veered off the right side of the runway into snow, and the aircraft was substantially damaged and the captain seriously injured. The accident was attributed to the crew’s initial failure to consult applicable abnormal procedures, and then failure to make the required check of symmetric reverse pitch before selection.

Description

On 26 November 2020, an ATR 42-300 (C-FAFS) operated by Calm Air International on a cargo flight from Rankin Inlet to Naujaat as CAV464, was descending to destination when the pilots observed the left engine at an abnormally low propeller rpm. Shortly after touchdown at Naujaat in day VMC, directional control was lost when the crew selected asymmetric reverse pitch without first checking both systems were functional. The aircraft veered off the runway into snow before stopping 33 metres from the runway. The captain was seriously injured, and the other pilot and a non-operating cabin crew occupying a passenger seat in the cabin suffered minor injury. The aircraft sustained substantial damage.

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