As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDX - ON FLIGHT 2464, CABIN PRESSURE FAULT LIGHT ILLUMINATED. COMPLIED WITH EMERGENCY CHECKLIST. PRESSURE IN MANUAL MODE OK. MAINTENANCE INSPECTED AFT OUTFLOW VALVE. NO DEFECTS NOTED. NO CSC FAULT LIGHT ON PRESSURIZATION CONTROL PANEL. PERFORMED FUNCTIONAL TEST. FUNCTIONAL TEST CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE. NO PARTS REPLACED.