As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ISP - FLT 4245 - BAGGAGE SMOKE INDICATION CAME ON IN-FLIGHT. CREW DISCHARGED FIRE EXTINGUISHERS. INSPECTED BAGGAGE COMPARTMENT AND VERIFIED EVENT AS A FALSE WARNING. ISSUED MEL AGAINST THE BAGGAGE SMOKE DETECTION SYSTEM PER MEL 26-15. REMOVED AND REPLACED BOTH BAGGAGE COMPARTMENT SMOKE DETECTORS. FUNCTIONAL CHECK GOOD. MEL ITEM RESTORED ON 5-13-99. AIRCRAFT RETURNED TO SERVICE. REF: OPERATOR CONTROL NR SIMA991235.