As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING A ROUTINE FLIGHT FROM KBOX TO KCYUL, THE FLIGHT CREW NOTED A PROP DE-ICE FAIL CAS IN FLIGHT. THE CREW DECLARED AN EMERGENCY AND DIVERTED TO KCYUL. THE AIRCRAFT CONTINUED TO LAND WITHOUT INCIDENT. REPLACED THE LEAD TO THE PROP DE ICE SYS.