As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 504 - DEPARTING CCS - WHILE CLIMBING OUT, NR 1 GENERATOR HAD DIFFERENT FAULT INDICATION ON F/E PANEL. NR 3 GENERATOR WAS PREVIOUSLY ON DMI. RETURNED TO DEPARTURE CITY. AIRCRAFT LANDED WITHOUT INCIDENT. NR 1 ENGINE GENERATOR SYSTEM TROUBLESHOT AND VOLTAGE REGULATOR AND GCU REMOVED AND REPLACED. AIRCRAFT RETURNED TO SERVICE. (M)