As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PROPELLER DE-ICE CAUTION ILLUMINATED ENROUTE. RIGHT PROPELLER DE-ICE LIGHT DID NOT ILLUMINATE. RETURNED TO FIELD. LANDING UNEVENTFUL. INTERROGATED CDS AND FOUND PHASE A, B AND (TMCU2) SHORTED MESSAGE. REPLACED THE NR 2 BRUSHBLOCK IAW AMM 30-61-01=-000/400-801. REMOVED & REPLACED THE NR 2 TMCU IAW AMM 30-61-06-000/400-801. OPS & FUNCTIONAL TESTED GOOD IAW AMM 30-61006-710-801 & 30-61-00-720-801. NO FAULT CODES LOGGED ON CDS. RETURNED TO SERVICE.