Incident Overview
A student pilot was conducting a training flight with the purpose of practicing hovering maneuvers. According to the pilot's report, the wind was from 280 degrees at 9 knots. While hovering, the pilot turned to a downwind heading when a gust of wind induced an uncommanded right spin. The pilot attempted to counteract the rotation by applying left pedal input, but the helicopter continued to spin to the right. The pilot then set the helicopter down on the ground, after which the tail boom, tail rotor, skids, and lower frame were found to be damaged.
Sequence of Events
The student pilot initially established a hover in the prevailing wind conditions. During the hover, he executed a turn to a downwind heading. At that moment, a gust of wind impacted the helicopter, causing it to rotate to the right. The pilot applied corrective left pedal, but the rotation persisted. Unable to regain yaw control in the hover, the pilot chose to land the helicopter immediately. The helicopter touched down while still rotating, resulting in structural damage to the tail boom and tail rotor assembly, as well as the skids and lower frame.
Aircraft Damage
The inspection revealed damage to several components: the tail boom, tail rotor, skids, and lower frame. The extent of the damage to each component was not further detailed in the source. The helicopter was not equipped with any recording devices that might have provided additional data on the event.
Pilot Report
The student pilot, who was the sole occupant, provided the account of the incident. He stated that the purpose of the flight was to practice hovering, and he reported the wind conditions as 280 degrees at 9 knots. He described the gust as causing the spin and noted that his left pedal input did not stop the rotation. The pilot's report did not indicate any mechanical anomalies prior to the gust.