As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING B INSPECTION, FOUND THE EMERGENCY LIGHT OUT AT ROW 14A TO ROW 18A. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED AND INSTALLED NEW BATTERY AND BATTERY CHARGER, PER WORKCARD NR 1 33-700-19. THE OPERATIONAL CHECK WAS GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.