As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 5816, CLE TO BDL. CREW REPORTED A WING ANTI-ICE FAIL THAT CAUSED A FAILURE OF THE ANTI-ICE SYSTEM AND RETURNED TO CLE AND LANDED WITHOUT INCIDENT. MAINTENANCE FOUND A WING 2 A/ICE LEAK MESSAGE ON THE CMC AND TROUBLESHOT PER FIM 30-11-00 AND FOUND A DEFECTIVE THERMOSTAT SWITCH. THE RIGHT THERMOSTAT WAS REPLACED AND THE ANTI ICE SYSTEM OPERATED NORMALLY.