NTSB Factual Report

The pilot reported that while conduction an aerial application flight, he did not see power lines in his path and the helicopter struck the wires that and then the ground. The main rotor blades severed the tail boom of the helicopter during the event. In his report, the pilot listed no mechanical malfunctions or failures of the helicopter.

NTSB Probable Cause

The pilot's inadequate monitoring of the environment and failure to maintain clearance from transmission wires during an aerial application flight.