Accident Overview
A private pilot, who was rotorcraft-rated, was conducting an instructional flight under the supervision of a flight instructor. While the helicopter was in a hover, the student pilot initiated a clearing pedal turn to the right. After completing approximately a quarter of the turn, the helicopter experienced a sudden and violent yaw to the right, resulting in a crash. The flight instructor was unable to react before the impact.
Post-Accident Examination
Following the accident, a thorough examination of the helicopter was performed. No mechanical anomalies or malfunctions were identified that could have contributed to the loss of control. The helicopter appeared to be in proper working order at the time of the accident.
Instructor's Previous Experience
The flight instructor involved in this accident had been involved in a similar occurrence approximately one month earlier. That incident also involved the same helicopter but with a different student pilot. Details of that prior accident were not provided, but it indicates a pattern of events under similar instructional circumstances.