As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) AFTER LANDING AND SHUTTING DOWN THE CREW NOTICED AN ACCUMULATION OF ICE ON THE HORIZONTAL STABILIZER DE-ICE BOOTS. MAINTENANCE FOUND AN INTERMITTENT DISTRIBUTOR VALVE AS THE CAUSE, THE VALVE WAS REPLACED WITH NEW AND THE SYS WAS GROUND FUNCTION CHECKED SERVICEABLE.