As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GEG FLIGHT NR 2316, NR 2 ENGINE INTAKE DEICE BOOT LIGHT DOES NOT ILLUMINATE AND DEICE CAUTION LIGHT ILLUMINATES WHEN AIRFRAME ICE PROTECTION IS SELECTED TO SLOW, FAST, OR NORMAL. PERFORMED EMERGENCY CHECKLIST, DEICE PRESSURE SHOWS NORMAL. BULB TESTS OKAY. MAINTENANCE REMOVED AND REPLACED NR 4 DDV IAW AMM 30-00-16. GROUND RAN. OPS CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.