Incident Overview
A helicopter conducting herbicide application operations struck unmarked power lines during a maneuvering turn. The pilot was executing swath runs to apply herbicide solutions to weed plants. While finishing the second load of spray, the pilot maneuvered to turn the helicopter around and struck unmarked power lines located approximately 75 to 100 feet above the ground.
Sequence of Events
After striking the power lines, the pilot lost control of the helicopter. The aircraft descended and came down on its side, subsequently impacting trees. The pilot reported that there was no mechanical malfunction prior to the accident.
Wreckage Examination
Examination of the wreckage revealed damage to the main rotor system, separation of the tail boom, shattering of the canopy, and separation of one skid. No further details about the extent of damage were provided.
The investigation did not specify the type of helicopter, registration, date, operator, location, or number of occupants. No information regarding injuries, fatalities, time of day, weather conditions, or air traffic control involvement was included in the source.