As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEA- AFT CARGO DOOR WARNING LIGHT ILLUMINATED WHILE DECENDING INTO SEA. CREW FOLLOWED CHECKLIST AND BEGAN DEPRESSURIZATION OF AIRCRAFT. AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED AND FOUND DOOR STOP PINS OUT OF ADJUSTMENT. ADJUSTED, CLEANED, AND LUBED AFT BAGGAGE DOOR. INSPECTED CLOSING OF DOOR. OPERATIONAL CHECKS WERE GOOD. AIRCRAFT RETURNED TO SERVICE.