As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED THEY LOST THE RT EMERGENCY AC BUSS. THE ALERT WAS GENERATOR BUSS 3 FAULT. HAD ONLY A SINGLE GENERATOR OPERATIVE. FOLLOWED QRH PROCEDURES, DEPLOYED ADG AND LANDED WITHOUT FURTHER INCIDENT. PERFORMED TASK IAW FIM 24-20-05. AUTO RESET OF EPCU. STOWED ADG. OPS CHECKED NORMAL.