As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SMOKE AFT LAVATORY WARNING ILLUMINATED ON FINAL APPROACH. FLIGHT ATTENDANT`S INDICATED THAT NO FIRE OR SMOKE WAS PRESENT. WARNING EXTINGUISHED SHORTLY AFTER TOUCHDOWN WITH NO ACTION TAKEN. VISUALLY INSPECTED LAVATORY & COMPARTMENTS, NO SIGNS OF SMOKE NOTED. COMPLETED OPERATIONAL TEST OF LAVATORY SMOKE DETECTOR IAW AMM 26-16-00 TR 26-0121 OPERATIONS CHECKED GOOD. UNABLE TO DUPLICATE.