Accident Details
Probable Cause and Findings
The pilot's failure to maintain adequate main rotor rpm while maneuvering at a low altitude, which resulted in the helicopter settling and subsequently colliding with the ground. Contributing to the accident was that the pilot had insufficient altitude to accomplish a successful recovery.
Aircraft Information
Registered Owner (Current)
Analysis
The pilot reported that while flying in a canyon at about 300 feet above ground level (agl) he spotted a black bear, which prompted him to maneuver the helicopter for a closer look. The pilot stated that he then descended to about 50 feet agl before flying upslope, but allowed his airspeed to drop below 20 knots, which was outside the helicopter’s ability to hover. The pilot reported that at about this time he received a Low Rotor RPM warning, took corrective action to maintain sufficient [rotor] RPM, but the helicopter began to settle. The pilot added that without sufficient room to gain airspeed and lift, he was going to have to put the helicopter down. During the attempted landing the helicopter impacted several trees and the ground before coming to rest on its right side. The tail section, tail rotor blades, main rotor blades, main cabin, and skids suffered extensive damage. The pilot reported no preimpact mechanical malfunctions or failures with the helicopter that would have precluded normal operation.
Data Source
Data provided by the National Transportation Safety Board (NTSB). For more information on this event, visit the NTSB Records Search website. NTSB# WPR12CA351