Accident Overview
During a hover approximately three feet above ground level, the pilot initiated a 180-degree left pedal turn. As the tail of the helicopter passed through the downwind portion of the turn, the tail rose sharply. In response, the pilot applied abrupt aft cyclic control.
Tail Rotor Strike and Loss of Control
The tail rotor subsequently struck the pavement. This led to a loss of tail rotor authority and an uncommanded rapid spin to the right. The pilot reduced throttle while attempting to perform a hovering autorotation.
Touchdown and Rollover
The helicopter touched down in a level attitude but with excessive lateral movement. The right side landing skid collapsed, causing the helicopter to roll to the right and come to rest on its right side.
Wind Conditions
The pilot reported winds from 175 degrees at 21 knots, gusting to 28 knots. No mechanical failure or malfunction was reported at the time of the accident.