Accident Details
While approaching an airport, the helicopter's engine began to surge. The pilot elected to make a precautionary off-airport landing. During touchdown on a downhill slope from an autorotation, the main rotor contacted the tail boom, resulting in damage.
Fuel Analysis
The pilot reported departing with 50 gallons of fuel approximately 1 hour and 45 minutes before the accident. According to Bell Helicopter, the helicopter burns 25 gallons per hour. Post-crash examination of the helicopter revealed the fuel system contained approximately 10 gallons of fuel. A Bell Helicopter representative stated that fuel starvation could occur with up to 10 gallons of fuel if the boost pumps are not used.
Engine Examination
The engine was operated with no evidence of failure or malfunction. No mechanical issues were identified in the post-crash inspection.