As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SMOKE DETECTOR MESSAGE DURING CRUSE F/S REPORTED NO FUMES, SMOKE OR HEAT MESSAGE WENT OUT ON ITS OWN. ENROUTE TO SGF A/C DIVERTED TO MEM DUE TO MAINTENANCE. PERFORMED OPS TEST OF THE LAVATORY SMOKE-DETECTION SYSTEM IAW AMM 26-16-00. NO DEFECTS NOTED ACFT OK FOR SERVICE.