As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLE FLIGHT#3012 THE CREW REPORTED A #2 ENGINE FIRE DETECTOR FAIL MESSAGE IN CRUISE.THE AIRCRAFT LANDED WITHOUT FURTHER INCIDENT.MAINTENANCE REPLACED THE #2 ENGINE FIRE DETECTOR LOOP.OPERATIONAL CHECKS WERE GOOD.THE AIRCRAFT WAS RELEASED FOR SERVICE.