What was found
RECEIVED A PROPELLER DEICE CAUTION LIGHT. RAN CHECKLIST AND LIGHT WENT OUT. EVERYTIME THE NR 2 PROP DEICE CYCLED ON THE PROPELLER DEICE CAUTION CAME BACK ON. ALL THREE PHASES OF THE NR 2 HAD AT LEAST A .15 INCREASE WHEN PROPELLER DEICE WAS ON. REMOVED FROM SERVICE. REMOVED SPINNER AND OUTBD HORSE COLLAR. FOUND SHORTED AND ARCED WIRE AT BACKPLATE ON THE NR 2 BLADE ON THE NR 2 PROPELLER . REPLACED ONE WIRE RECEPTACLE ON THE NR 2 BLADE IAW CMM 61-00-49. REMOVED AND REPLACED THAT PROP SLIP RING DEICE HARNESS IAW AMM 61-10-16-000/400-802. ALSO REMOVED AND REPLACED THE NR 2 BLADE DEICE HARNESS IAW AMM 61-10-01-000/400-805. AIRCRAFT RETURNED TO SERVICE.