Incident Overview
A pilot reported that while flying a helicopter in a canyon at an altitude of about 300 feet above ground level (AGL), he noticed a black bear. The pilot maneuvered the helicopter to get a closer look, descending to approximately 50 feet AGL before flying upslope. During this maneuver, the pilot allowed the helicopter's airspeed to drop below 20 knots, which was outside the helicopter's ability to hover.
Low Rotor RPM Warning and Settling
Shortly after the airspeed decrease, the pilot received a Low Rotor RPM warning. He took corrective action to maintain sufficient rotor RPM, but the helicopter began to settle. The pilot reported that without enough room to gain airspeed and lift, he was forced to attempt a landing.
Impact and Damage
During the attempted landing, the helicopter impacted several trees and then 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.
Mechanical Status
The pilot reported no preimpact mechanical malfunctions or failures with the helicopter that would have precluded normal operation.