What was found
SEA - LAV SMOKE DETECTOR CAME ON IN FLIGHT, NO SMOKE WAS OBSERVED. AIRCRAFT RETURNED TO FIELD AND LANDED WITHOUT FURTHER PROBLEM. LAV SMOKE DETECTOR REPLACED AND DETECTOR OPS CHECKED GOOD. AIRCRAFT RETURNED TO SERVICE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
SEA - LAV SMOKE DETECTOR CAME ON IN FLIGHT, NO SMOKE WAS OBSERVED. AIRCRAFT RETURNED TO FIELD AND LANDED WITHOUT FURTHER PROBLEM. LAV SMOKE DETECTOR REPLACED AND DETECTOR OPS CHECKED GOOD. AIRCRAFT RETURNED TO SERVICE.