DURING THE INITIAL CLIMB AT THE BEGINNING OF AN AERIAL APPLICATION FLIGHT, THE PILOT MADE A CLIMBING 180 DEGREE RIGHT TURN IN THE REVERSE DIRECTION WHEN THE ROTOR RPM BEGAN TO DROP. THE PILOT CONTINUED TO RAISE COLLECTIVE, LOST DIRECTIONAL CONTROL AND COLLIDED WITH THE TERRAIN APPROXIMATELY 100 YARDS FROM THE INITIAL LIFT-OFF POINT. THE REASON FOR THE POWER LOSS WAS NOT DETERMINED.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

Contributing Factors

ROTOR RPM..INADEQUATE..PILOT IN COMMAND

Contributing Factors

EMERGENCY PROCEDURE..NOT ATTAINED..PILOT IN COMMAND

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