As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ONT - CREW REPORTED DURING CLIMBOUT RIGHT GENERATOR WAS CYCLING CAUSING RELAY CHATTER AND ALL LIGHTS AND GAUGES TO FLICKER. EMERGENCY DECLARED FLIGHT RETURNED ONT LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED RIGHT BUS CONTROL UNIT AND GENERATOR CONTROL UNIT (MPN-947F9453). SYSTEM GROUND CHECK NORMAL OPERATION.