As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 5710, ATL TO CLE, DURING CLIMB THE FLIGHT CREW RECEIVED A 14TH STAGE DUCT MESSAGE. THE QRH WAS FOLLOWED BUT THE MESSAGE REMAINED. THE AIRCRAFT RETURNED TO ATL AND LANDED WITHOUT INCIDENT. MAINTENANCE RESET THE SYSTEM PER CRJ FIM 36-10-00 AND RAN THE ENGINES WITH THE CREW WITH NO FURTHER DEFECTS NOTED.