Helicopter Tailrotor Driveshaft Failure During Snow Landing

Incident Overview and Immediate Sequence of Events A pilot conducted a flight to a designated practice area and attempted to land a helicopter on what was perceived to be firm snow. During the landing phase, the aircraft unexpectedly broke through the snow surface. This sudden penetration caused the helicopter's tailrotor to strike the snow. ## Pilot Actions and Subsequent Inspection Following the initial impact, the pilot repositioned the helicopter. During this maneuver, the tailrotor chip light illuminated, indicating a potential mechanical issue. A subsequent inspection of the aircraft confirmed that the tailrotor driveshaft had sheared. The source does not provide specific details regarding the aircraft type, registration, operator, exact date, or location.