Accident Overview
A helicopter operating with a long line external load experienced an engine failure shortly after liftoff. The aircraft had climbed vertically to clear trees at a remote operating site. At approximately 250 feet above ground level, the engine ceased operation. During the subsequent autorotation, rotor speed decayed as the pilot maneuvered to overfly trees and reach a dirt road. The helicopter landed hard on the road, and the main rotor struck trees during the descent.
Fuel System Examination
After the accident, an examination of the helicopter's fuel system revealed the presence of water. The aircraft had been refueled at the remote site from portable drums. These drums lacked any filter capable of preventing water from entering the aircraft's fuel system.
Operational Context
No details regarding the helicopter's type, registration, or operator were provided. The number of occupants, injuries, and extent of damage were not specified. The time of day, weather conditions, and involvement of air traffic control are unknown.