Accident Narrative
The helicopter departed from a parking lot following a maximum performance takeoff to clear nearby wires. After departure, it proceeded westward and climbed to an altitude of 5,500 feet above mean sea level (msl). The pilot then selected a landing zone and turned northwest, initiating a descent. The planned approach was to bring the helicopter to a high hover, allow dust to settle, and then land.
As the helicopter descended to approximately 200 feet above ground level (agl) at an airspeed of 115–120 knots, the pilot executed a right turn into the wind. During the turn, the pilot perceived the bank angle as "too steep" and attempted to shallow the turn. However, the cyclic control would not move. The pilot tried to neutralize the cyclic with both hands but was unable to do so. No stiffness was felt in the collective control, and no warning horn or illumination of warning lights was recalled by the pilot. Subsequently, the helicopter impacted the ground.
Examination Findings
Post-impact examination of the airframe and engine revealed no pre-impact anomalies. The hydraulic servos were also examined and tested; no anomalies that would have prevented their operation were identified.