As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT REPORTED ALTERNATOR FAILED. TROUBLESHOT AND DETERMINED THAT THE ALTERNATOR FIELD CIRCUIT BREAKER WAS INTERMITTENT. THE ALTERNATOR FIELD CIRCUIT BREAKER WAS REMOVED AND A NEW CIRCUIT BREAKER INSTALLED, ALTERNATOR OPS CHECKED NORMAL.