As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 3655 THE FLIGHT ATTENDANT REPORTED SOME OF THE EMERGENCY LIGHTS ON IN CABIN ON PREFLIGHT. ALSO THE CREW REPORTED EMERGENCY LIGHTS WERE OFF IN COCKPIT. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED AND RELACED THE NR 3 AND NR 4 CHARGER AND BATTERY POWER SUPPLY IAW WC 33-700-19. THE AIRCRAFT WAS RETURNED TO SERVICE.