As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MOMENTARY LAVATORY SMOKE WARNING, NO SMOKE NOTED BY FLIGHT ATTENDANTS, WARNING CLEARED ON ITS OWN AFTER A FEW SECONDS. PERFORMED SDCU BITE 26-17-00-710-001A, TEST PASSED. REPLACED ALL SMOKE DETECTOR AIR FILTERS ASSEMBLIES. GOOD FOR SERVICE.