As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING MAINTENANCE CHECK FOUND THAT ALL OF THE FORWARD CABIN EMERGENCY LIGHTS FAILED TO ILLUMINATE. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED AND REPLACED THE NUMBER 1 EMERGENCY BATTERY AND CHARGER ASSEMBLY IAW AEWC 33-700-19. THE AIRCRAFT WAS RETURNED TO SERVICE.