Accident Sequence
The helicopter was on an initial takeoff climb from the median of an interstate highway. It had just picked up one patient who had been involved in an automobile accident. During the climb, the aircraft impacted high tension power lines. The flight was an air ambulance mission. The helicopter had landed on the median strip to retrieve the patient. After loading, it began its climb. The wires were unmarked and carried high voltage. The impact occurred during the initial climb phase.
Weather Conditions
At the time of the accident, weather conditions were reported as 500 feet overcast with 4 miles visibility in fog and rain showers. The low ceiling and reduced visibility likely affected the pilot's ability to see obstacles.
Pilot Statement
The pilot stated that he did not see the four unmarked high tension wires prior to executing his takeoff. His account indicates he was unaware of their presence before starting the climb. The wires were not marked, which may have contributed to the difficulty in spotting them.
No other information was provided by the source regarding the aircraft type, registration, operator, location, occupants, injuries, or damage. The investigation is ongoing.