As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT AIRFOIL ICE PROTECTION TEMP HIGH LIGHT CAME ON DURING TAIL PORTION OF ICE PROTECTION CYCLE. FOLLOWED QRH AND GOT RIGHT AIR TEMPERATURE HIGH LIGHT. REMOVED AND REPLACED PNEUMATIC PILOT PRESSURE REGULATOR. REF MM 36-10-02 PER T/S CHECKED DUCT TEMPS, FOUND TO BE HIGH. DUCT TEMPS WITHIN LIMITS AFTER PRESSURE REGULATOR CHANGE.