As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT REPORTED THAT THE ALTERNATOR WAS INOPERATIVE. THE TECH TROUBLESHOT THE SYSTEM AND DISCOVERED THE ALTERNATOR CIRCUIT BREAKER SWITCH WAS AT FAULT. THE TECH REPLACED THE CIRCUIT BREAKER SWITCH. NO CAUSE OR RECOMMENDATION AT THIS TIME.