Incident Summary
An autorotation was initiated at approximately 300 feet above ground level as both engine and rotor RPM began to decrease. The helicopter subsequently touched down in soft sand while still having some forward motion. During the touchdown, full aft cyclic was applied, causing the main rotor to contact the tailboom.
Fuel System Examination
Examination of the helicopter's fuel system revealed approximately two-thirds of a quart of water in the fuel filter and a substantial amount of water in the fuel pump. Additionally, about half a gallon of water was found in the fuel drum from which the helicopter had just been serviced.
Damage
The main rotor contacted the tailboom during the event. No further damage details were provided.
No Injuries Reported
No injuries or fatalities were mentioned in the source.