As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CVG TO XNA - DURING CLIMB-OUT, SHORTLY AFTER ANTI-ICE HAD TURNED OFF FROM EXITING ICING CONDITIONS, CREW RECEIVED A "BLEED 1 OVERTEMP" MESSAGE. THE CREW RAN THROUGH THE APPROPRIATE QRH CHECKLISTS AND IT WAS DECIDED TO RETURN TO CVG. THE AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE TROUBLESHOT THE FAULT TO THE BLEED AIR THERMOSTAT AND REPLACED IT. THE BLEED SYSTEM OPS CHECKED GOOD AFTER THE BLEED AIR THERMOSTAT WAS REPLACED.