As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING THE PS-2 CHECK FOUND THE NR 1 EMERGENCY BATTERY AND CHARGER ASSEMBLY TO BE INOPERABLE. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED AND REPLACED THE NR 1 BATTERY AND CHARGER ASSEMBLY EMERGENCY LIGHTING SYSTEM IAW WC 33-700-19. THE OPERATIONAL CHECK WAS GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.