What happened
The accident occurred during the final phase of flight while the helicopter was executing a landing maneuver. The aircraft was established on a downwind leg for the approach. As the helicopter descended to an altitude of approximately 20 feet above the ground, it began to settle with power, indicating a loss of lift capability despite engine operation.
Recognizing the deteriorating situation, the pilot attempted to arrest the descent by applying additional collective pitch and power. However, the available altitude was insufficient to recover from the settling condition. Additionally, the airspeed was too low to generate adequate aerodynamic lift or control authority. Consequently, the helicopter impacted the ground with significant vertical velocity.
The force of the impact caused the aircraft to roll over onto its side or roof. Following the collision with the terrain, the main rotor blades ceased rotating after striking the ground surface. There is no information provided regarding injuries to the pilot or damage extent in this specific text fragment.
The investigation
No mechanical examination details are provided in the source text. The narrative focuses exclusively on the flight dynamics and pilot actions during the accident sequence.
Findings
The primary contributing factors were the decision to land downwind with insufficient energy margins and the resulting inability to recover from a settle-with-power condition. The lack of adequate altitude prevented the pilot from executing a successful go-around or flare maneuver. The low airspeed further compromised the helicopter's ability to generate lift at low power settings.
Safety message
Pilots should be aware that landing downwind reduces ground speed and can complicate energy management. Approaches must ensure sufficient altitude and airspeed are maintained to allow for recovery from unexpected settling conditions, particularly near the ground.