As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING DESCENT IN ICING CONDITIONS, THE CREW RECEIVED A WING OVERHEAT WARNING. THE CREW COMPLETED THE REQUIRED CHECKLISTS AND PROCEDURES, AND DECLARED AN EMERGENCY WITH THE ATC. THE WARNING EXTINGUISHED UPON COMPLETION OF THE PROCEDURES, AND THE AIRCRAFT LANDED WITHOUT ANY FURTHER EVENT. MAINTENANCE DETERMINED THE WING ANTI-ICE AND SHUT OFF VALVE HAD FAILED.