As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING ADG CHECK WITH EMERGENCY INVERTER POWER CIRCUIT BREAKER PULLED, POWER WAS LOST TO THE LEFT AC AND ALL CAPTAIN'S DISPLAYS LOST POWER. AIR DRIVEN GENERATOR POWER MONITOR REMOVED AND REPLACED IAW AMM 24-25-06-4. ADG GROUND TESTED IAW AMM 24-25-00-700-802, AND FOUND SATISFACTORY.