As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON 14SEP00 FLIGHT 3661 LEAVING BWI HAD SMOKE DETECTOR ILLUMINATED IN FLT FOR 5 SECONDS. AIRCRAFT THEN RETURNED TO THE FIELD. MAINTENANCE SECURED A LOOSE CANNON PLUG ON THE BULKHEAD SMOKE DETECTOR, OPERATIONAL CHECK WAS GOOD. AIRCRAFT WAS THEN RETURNED TO SERVICE.