As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: SMOKE LAVATORY ECAM INDICATION. NO SMOKE WAS OBSERVED. ONLY LAVATORY IN USE AT TIME OF INDICATION WAS MIDDLE LAVATORY. MAINTENANCE ACCOMPLISHED TSM 26-17-00-810-804A AND A SATISFACTORY OPERATIONAL TEST WITH NO FAULTS OR MESSAGES NOTED.