As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON CLIMB OUT, RIGHT GENERATOR DRIVE INOPERATIVE. APU CURRENTLY DEFERRED. FLIGHT CANNOT CONTINUE WITH SINGLE ELECTRICAL SOURCE. AIRTURN BACK TO DEPARTURE STATION KLAX WITH EMERGENCY DECLARATION. LANDING UNEVENTFUL WITH NO ADDITIONAL PRECAUTIONARY ACTIONS. ON ARRIVAL, AIRCRAFT GROUNDED FOR UNSCHEDULED MAINTENANCE. WORK IN PROGRESS.