As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOR FLIGHT 2853 DURING MAINTENANCE CHECK FOUND THE EMERGENCY LIGHTS FROM NR 2 BATTERY DIM AND DRAINING. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED AND REPLACED THE NR 2 EMERGENCY POWER SUPPLY UNIT CHARGER IAW W/C 33-700-19 THE OPERATIONAL CHECK WAS GOOD IAW W/C 33-700-17. THE AIRCRAFT WAS RETURNED TO SERVICE.