Overview
A student helicopter pilot conducting a flight encountered adverse conditions after deviating from the planned route. The helicopter collided with a power line and sustained extensive damage upon crashing.
Flight Details
The student pilot received a weather briefing prior to the flight, which indicated marginal conditions. He was instructed not to proceed if weather would be a factor but elected to fly. The flight was originally planned for a route to Blythe; however, after takeoff, the pilot proceeded to Pauma Valley and made an unauthorized stop. A passenger then boarded the helicopter, and the pilot took off again.
Accident Sequence
While flying at an altitude of approximately 300 feet above an interstate highway, the helicopter struck a power line. It then crashed to the ground and was extensively damaged. No preimpact mechanical problems were identified.
Weather Conditions
A witness reported that clouds were low but there was no fog. Another witness reported mist falling. Approximately 14 miles southwest, at Oceanside, weather conditions were partially obscured with an overcast ceiling at 1,000 feet, visibility of 5 miles, and wind from 160 degrees at 4 knots.
Pilot Information
The pilot held a single-engine land airplane rating and was receiving flight instruction in helicopters at the time of the accident.