As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 3650 THE CREW REPORTED THE LOWER SIDE WALL EXIT SIGN ON AIRCRAFT LEFT AT THE EMERGENCY WING EXIT DID NOT ILLUMINATE. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED AND REPLACED NR 3 EPSU BATTERY CHARGER IAW AMM 33-51-17. THE OPERATIONAL CHECK WAS GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.