As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
"SMOKE" LIGHT ON THE MAP ILLUMINATED DURING FLIGHT AS WELL AS THE SMOKE LIGHT AND ALARM IN THE REAR OF THE CABIN. ALL LIGHTS AND ALARMS CEASED AFTER ABOUT 4 MINUTES. FLIGHT ATTENDANT REPORTED NO ODOR OF SMOKE OR FIRE INDICATION IN THE LAV OR CABIN AREA. NO SMOKE DETECTED IN THE COCKPIT. OPERATIONAL CHECK LAV SMOKE DETECTOR WITH NO DEFECTS.