As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING MAINTENANCE INSPECTION, FOUND EMERGENCY LIGHTING BATTERY AND POWER CHARGER NR 4 INOPERATIVE. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED AND REPLACED THE EMERGENCY LIGHTING BATTERY AND CHARGER AS PER MAINTENANCE WORK CARD NR 33-700-19. THE OPERATIONAL CHECK WAS GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.