As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WING ANTI-ICE CAS MESSAGE "WNG A/I FAIL" WING ANTI-ICE INDICATED FAILED IN FLIGHT. SYSTEM WAS NOT IN USE AND NOT NEEDED FOR THE CONDITIONS WHEN THE INDICATION HAPPENED. CREW ELECTED TO DIVERT TO HOME BASE AIRPORT AS THEY WERE IN THE VACINITY FOR MAINTENANCE SUPPORT.