As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEA TO BZN FLIGHT NR 2478: FUSELAGE DOORS MASTER CAUTION WARNING IN FLIGHT, DOOR PAGE SHOWED BAG DOOR UNSAFE. FLIGHT WAS DIVERTED TO GEG. MAINTENANCE INSPECTED AND FOUND AFT BAGGAGE DOOR HANDLE IN UNLOCKED POSITION. C/W H/S NR 05-0001. NO DEFECTS NOTED. NO PARTS REPLACED. AIRCRAFT RETURNED TO SERVICE.