What was found
CLIMBING THROUGH 14,000 FT PROP DEICE CAUTION ILLUMINATED. PERFORMED E&A CHECKLIST, RESET UNSUCCESSFUL. PROP DE-ICE CAUTION REMAINED ILLUMINATED FOR DURATION OF FLIGHT. DIVERTED, LANDING UNEVENTFUL, REMOVED FROM SERVICE. INTERROGATED CDS, FOUND FC OPEN PHASE B ON NR 1 TMCU. DURING TROUBLESHOOTING, NOTED POSSIBLE WEAR ON CENTER SLIP RING OF NR 1 PROP, FOUND TO BE WITHIN LIMITS, PER DOWTY CMM 61-10-49. REPLACED NR 1 BRUSH BLOCK, PER AMM 30-61-00-000/400-801 AND C/W FUNC TEST OF PROPS ANTI-ICING, REF AMM 30-61-00-720-801. OPERATIONS CHECK GOOD. OPEN PHASE B FC AND PROP DE-ICE CAUTION LIGHT DO NOT RETURN. AIRCRAFT RETURNED TO SERVICE.