As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEA FLIGHT NR 2348: ON DESCENT, DEICE PRESSURE CAUTION ILLUMINATED AT REDUCED POWER. CONDUCTED E/A CHECKLIST AND LIGHT RE-ILLUMINATED ON SUBSEQUENT CYCLE. PRESSURE NORMAL BUT HORIZONTAL STAB INBOARD LIGHT (LEFT) DID NOT ILLUMINATE. MAINTENANCE REMOVED AND REPLACED DDV NR 6 IAW AMM Q400 TASK 30-11-16-000-801 AND TASK 30-11-16-400-801. OPS CHECK GOOD IAW TASK 30-11-00-720-801. AIRCRAFT RETURNED TO SERVICE.