As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING CRUISE, RIGHT HAND DC GENERATOR WENT OFF-LINE AND COULD NOT BE RESET. MAINTENANCE INVESTIGATION REVEALED THAT VOLTAGE REGULATOR WAS REGULATING AT A HIGH VOLTAGE RATE AND COULD NOT BE ADJUSTED. THIS RESULTED IN NR 1 DC GENERATOR TAKING MOST OF THE LOAD AND KICKING NR 2 GENERATOR OFF-LINE. DEFECTIVE VOLTAGE REGULATOR WAS REPLACED.