As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT ALTERNATING CURRENT BUS FAILED IN FLIGHT. REMOVED AND REPLACED NR 1 ALTERNATING CURRENT GENERATOR CONTROL UNIT AND CLEANED CONNECTOR TO NR 1 ALTERNATING CURRENT GENERATOR. GROUND OPERATIONS CHECK GOOD. REFERENCE AIRCRAFT MAINTENANCE MANUAL AMM 24-21-02.