As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE AIRCRAFT WAS ON RON LAST NIGHT AND SCHEDULED FOR A EN ROUTE CHECK INSPECTION. DURING THE WALK AROUND IT WAS DISCOVERED THE RT AFT EXTERIOR EMERGENCY LIGHT NOT ILLUMINATING. REPLACED THE LIGHT BULB AFTER TROUBLESHOOTING. OPERATIONAL CHECK GOOD.