As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IN CRUISE FLIGHT AT 320 THE BAGGAGE SMOKE WARNING MSG APPEARED MOMENTARILY & THE BAGGAGE EXTINGUISHER LIGHT ILLUMINATED & STAYED ON REST OF FLIGHT. PERFORMED SEVERAL TEST OF BAGGAGE SMOKE DETECTION SYS IAW AMM 26-15-00. OPERATIONS CHECKED GOOD. PERFORMED A GVI OF BOTH BAGGAGE SMOKE DETECTORS. NO DEFECTS NOTED.