As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDX FLIGHT NR 2416: PROP DEICE CAUTION LIGHT ILLUMINATES WHENEVER PROP NR 2 CYCLES ON. SHOWS GOOD LOAD ON THE ELECTRICAL. AIRCRAFT RETURNED TO FIELD. MAINTENANCE REMOVED AND REPLACED DEICE HARNESS ON NR 2 PROP, NR 2 BLADE IAW Q400 AMM TASK 61-10-06-000-805/61-10-06-400-805. FUNCTIONAL AND CALIBRATION TEST OF PROP DEICE SYSTEM TESTS GOOD. AIRCRAFT RETURNED TO SERVICE.