Accident Sequence
On 19 March 2008, at approximately 0837 eastern daylight time, a Bell 206B III helicopter (registration C-GBKX, serial number 2676) struck the frozen, snow-covered surface of Réservoir Gouin in Quebec. The helicopter was departing on a private visual flight rules flight to the pilot's cottage located 42 nautical miles to the east-southeast. The pilot, the sole occupant, was fatally injured. The helicopter was destroyed.
Earlier that morning, at about 0700, the accident pilot and another pilot (the co-owner of Hélicoptères Panorama, which owned the helicopter) discussed weather conditions via satellite telephone from the accident pilot's cottage. The weather at the cottage was estimated at 1½ to 3 miles visibility in light snow showers with a ceiling of approximately 800 feet above ground level. The two pilots then flew a Cessna 206 fixed-wing aircraft that had been stuck on the reservoir for over a week.
The Cessna pilot flew the Bell 206 from the cottage to Réservoir Gouin, with the accident pilot in the left front passenger seat. They landed near the parked Cessna at approximately 0807. The Cessna pilot took off for Alma at 0825 in the Cessna. The weather at that time was estimated at 1½ miles visibility in light snow showers and ceiling 200 feet agl—conditions considered to be instrument meteorological conditions (IMC). The Bell 206 pilot intended to return to his cottage shortly after.
At 1000, when the Bell 206 pilot had not returned to his cottage, Panorama was notified. The company's Guardian SkyTrax flight-following system indicated the helicopter was still on Réservoir Gouin. The accident site was located at 1409, 1.2 nautical miles east of its take-off point on the flat, frozen, snow-covered lake surface. The last SkyTrax position was recorded at 0836; the impact is estimated to have occurred between 0836 and 0838.
Weather Conditions
The weather at the accident site was conducive to whiteout conditions. The Graphic Area Forecast predicted overcast ceilings, reduced visibility in snow showers, and patchy ceilings as low as 400 feet agl. The environment featured flat light, reduced visibility, overcast skies, and a snow-covered reservoir, which can degrade visual cues and a pilot's ability to maintain aircraft attitude and altitude.
Aircraft and Pilot Information
The Bell 206B III was owned and maintained by Hélicoptères Panorama, a commercial helicopter company authorized under Part VII of the Canadian Aviation Regulations. The helicopter was operated under visual flight rules and was not certified or equipped for instrument flight. Maintenance records showed no deficiencies; the helicopter had flown 13 hours since its last 100-hour and annual inspections. Weight and center of gravity were within limits.
The pilot held a Canadian private helicopter pilot licence obtained in May 2005, with an estimated 130 total hours, including 85 hours on the accident helicopter. He also held a private fixed-wing licence. He did not hold an instrument rating and had a Category 3 medical certificate restricted to day flying. The helicopter was destroyed on impact, and examination revealed no pre-existing mechanical abnormalities. The emergency locator transmitter was damaged and its antenna connection severed.
Investigation Findings
The helicopter struck the lake surface on a northerly heading in a 45° nose-down, left-side low attitude with a high rate of descent. The main rotor blades struck the lake surface and the front cabin, followed by tumbling that destroyed the cabin and ruptured the fuel cell. The engine compressor and turbine casing deformation indicated power at impact. The main rotor transmission was not recovered and is believed to have sunk into soft snow and slush. There was no indication of pilot incapacitation or physiological factors.