As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BZN - FLIGHT 2311 (BZN TO SEA), RECEIVED A DE-ICE PRESSURE CAUTION FOR THE H-STAB BOOT. DIVERTED TO PASCO AND ACCOMPLISHED A UNEVENTFUL LANDING. MAINTENANCE REPLACED THE NR 5 DISTRIBUTOR VALVE. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.