As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PIT - FLT 1108 - AIRCRAFT DIVERTED FROM BDL DUE TO ICING CONDITIONS. CREW EXPERIENCED RIGHT ICE PROTECTION TEMP HIGH LIGHT ON AND OFF AT CRUISE ALTITUDE WITH THE AIRFOIL HEAT SWITCH POSITIONED OFF. MAINTENANCE REPLACED THE RIGHT ICE PROTECTION HIGH TEMP BULB AND FUNCTIONALLY CHECKED SYSTEM. (M)