As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) ACFT FOUND ON GROUND RUN TO BE NOT CHARGING. TROUBLESHOOTING FOUND THE PROBLEM TO BE THE ALTERNATOR CONTROL UNIT, PN AC2101. NO VOLTAGE FOUND TO BE SUPPLIED TO ALTERNATOR FIELD WIRE. ALTERNATOR CONTROL UNIT REPLACED NEW. ACFT GROUND RUN COMPLETED ALL PARAMETERS FOUND TO BE SERVICEABLE.