As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 2336 DE-ICE PRESSURE CAUTION LIGHT ILLUMINATED, COMPLIED WITH CHECKLIST. NOTED THE SECOND IB LIGHT SEGMENT ON RT WING NOT ILLUMINATING DURING CYCLE. MAINTENANCE REPLACED NR 2 DUCAL DISTRIBUTION VALVE IAW AMM 30-11-16, PAGES 401-408. OPERATIONAL CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.