As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDX - FLIGHT 2228 NR 2 BLEED HOT MASTER CAUTION LIGHT CYCLES ON AND OFF. STOPPED CYCLING AFTER RUNNING CHECKLIST. CYCLING WOULD STOP ONLY WITH NR 2 BLEED OFF. MAINTENANCE REPLACED NR 2 HPSOV. OPERATIONAL CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.