As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: LAVATORY SMOKE ECAM DURING CRUISE THAT CLEARED ON ITS OWN WITHIN A FEW SECONDS. FLIGHT ATTENDANTS RESPONDED AND NO KNOWN REASON. MAINTENNACE ACCOMPLISHED A TEST OF THE LAVATORY SMOKE DETECTION SYSTEM WITH NO DEFECTS NOTED.