As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FAT - BAGGAGE COMPARTMENT SMOKE DETECTOR ACTIVATED AT GATE AFTER PASSENGERS WERE BOARDED. NO SMOKE DETECTED IN BAGGAGE COMPARTMENT. PROBLEM FOUND TO BE FALSE ACTIVATION OF DETECTOR. MAINTENANCE REPLACED SMOKE DETECTOR. SYSTEM OPERATIONAL CHECK NORMAL AIRCRAFT RETURNED TO SERVICE. (M)