The Calm Air’s regional airplane ATR-72-200 with 31 passengers on board suffered problems with both engines during de-ice and preparation to takeoff from Thompson, Canada. The crew was working on the takeoff checklist to start a flight MO-503 from Thompson to Gillam, when within 5 seconds the both engines (PW124) blocked and inflamed, emitting smoke. The aircraft was stopped on the runway and the succeeded to shut down the engines to prevent spreading of the fire. The emergency was declared and the airport rescue teams were dispatched to assist with disembarking of all the passengers on the runway. The fire was prevented by the shut down of the engines and the emergency teams did not found any visible flames and smoke, but the airplane was return for repairs and special inspection. There were no injured passengers and crew during the incident.
The officials started investigation for the accident. The airplane was parked at the airport in blowing snow conditions for about 3 hours, without the engine inlets being covered. This might some of the circumstances, which were in the heart of the incident. During the investigation was also found that fuel system had no anomalies, quel quality was good and both engines were checked with no anomalies found.
The airplane ATR-72-200 is a twin-engine turboprop short-haul regional airliner. The airliner is driven by two Pratt & Whitney Canada PW124B engines with 2,400 shp each. The length of the airliner is 25.17 m, the height is 7.65 m, the windspan in 27.05 m and the win area is 61.00 sq m. The airplane has capacity for 78 passengers in a single-class configuration.