As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT REPORTS A BURNING PLASTIC ODOR FOLLOWED BY LOW VOLTAGE LIGHT. MAINTENANCE INSPECTED THE AIRCRAFT AND DETERMINED THAT THE ALTERNATOR HAD FAILED AND HAD A DEFINITE BURNED ODOR EMANATING FROM THE ALTERNATOR ITSELF. THE ALTERNATOR WAS REPLACED AND NO FURTHER PROBLEMS WERE NOTED..