Incident Overview
An emergency medical services (EMS) helicopter was returning to its home base after completing a mission when the pilot observed what he believed to be smoke on the ground. Deciding to investigate, he initiated a descent from a cruising altitude of approximately 1,000 feet above ground level (AGL) to get a closer look.
Sequence of Events
As the helicopter descended to inspect the smoke, it struck power lines at an altitude of about 60 feet AGL. The pilot then attempted an emergency autorotation to manage the loss of engine power or rotor rpm caused by the collision. The maneuver resulted in a hard landing in a shallow river.
Aftermath
No further details about the aircraft, occupants, or injuries were provided in the official investigation source. The extent of damage to the helicopter and power lines remains unspecified.