Aviation media advisory 2012

The Transportation Safety Board of Canada releases investigation report into the December 2010 engine power loss and autorotation landing of a Eurocopter AS 350 B2 near Pickle Lake, Ontario

(Gatineau, Quebec, February 21, 2012) - The Transportation Safety Board of Canada (TSB) today released its final investigation report (A10C0214) into the December 2010 engine power loss and autorotation landing of a Forest Helicopters Inc. Eurocopter AS 350 B2 near Pickle Lake, Ontario.

The helicopter was conducting slinging operations when its engine lost power at low airspeed and 250 feet above ground level. The pilot jettisoned the load and attempted an emergency autorotation landing. The helicopter struck the ground at a level attitude and one of the main rotor blades severed the tail boom. The helicopter was substantially damaged but there was no post–crash fire. The pilot was not injured and was able to exit the aircraft.

The investigation found that a leaking fuel–pump seal, in combination with fuel boost pump check valves that incorporate bleed ports, likely allowed air to be introduced into the fuel system. 


The TSB is an independent agency that investigates marine, pipeline, railway and aviation transportation occurrences. Its sole aim is the advancement of transportation safety. It is not the function of the Board to assign fault or determine civil or criminal liability.

For more information, contact:
Transportation Safety Board of Canada
Media Relations
Telephone: 819-994-8053
Email: media@tsb.gc.ca