As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SMOKE TOILET MESSAGE AFTER TAKEOFF. R & R LAVATORY SMOKE DETECTOR IAW AMM 26-61-01, OPERATIONS CHECKED NORMAL. COMPLIED WITH MIN WORK SCOPE SMOKE & FUMES IN CABIN, FLIGHT DECK, SMOKE TOILET MESSAGE, NO DEFECTS NOTED. ACFT READY FOR SERVICE.