As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STL - THE CREW REPORTED AN EMERGENCY LIGHTS NOT ARMED MESSAGE INTERMITTANT ON EICAS, AND NOT ALL LIGHTS WORKING. MAINTENANCE REMOVED AND REPLACED THE NR 6 EMERGENCY LIGHT INVERTER, OPERATIONALLY TESTED WITH NO DEFECTS NOTED. THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.