What was found
"PROP DEICE" CAUTION ILLUMINATED DURING CLIMBOUT -4C LIGHT ILLUMINATES WHEN NR2 PROP DEICE COMES ON. RETURNED TO FIELD. LANDING UNEVENTFUL. INTERROGATED CDS, FOUND FAULT CODE TMCU(14) IN TMCU2. C/W CONTINUATY CHECK OF THE PROPELLER DEICING HEATER ELEMENT IAW AMM TASK 30-61-00-760-801, FOUND DEICE WIRE HARNESS ON NR2 PROP BLADE NR1 OPEN. R & R IAW AMM 61-10-06-000-805 AND 61-10-06-400-805. DID NOT FIX PROBLEM, PERFORMED GVI OF BUS BARS, NO DEFECTS NOTED. FOUND MIDDLE SLIP RING ROUGH. IAW PROPELLER MM TASK 61-10-46 STEP1 LETTER G SUB NR (4), POLISHED MIDDLE SLIP RING AS REQUIRED. IAW MX CONTROL REQUEST R & R BRUSH BLOCK ON NR2 PROP IAW AMM 30-61-00-000-801 AND 30-61-00-400-801. ALL CHECKS GOOD. NO FURTHER CAUTIONS OR FAULTS NOTED. RETURNED TO SERVICE.