As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE FLIGHT CREW REPORTED DURING DESCENT AT FL200 THE BAGGAGE SMOKE ANNUNCIATOR ILLUMINATED. THE CREW ELECTED TO DIVERT AND LAND. THE LANDING WAS UNEVENTFUL. THE BASE MAINTENANCE TEAM AIR CLEANED THE FORWARD AND AFT BAGGAGE SMOKE DETECTORS. PERFORMED BAGGAGE SMOKE DETECTOR FUNCTIONAL TESTS WITH NO DEFECTS NOTED. THE AIRCRAFT WAS RETURNED TO SERVICE.