As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: FLIGHT CREW REPORTED SMOKE LAVATORY SMOKE ECAM AT CRUISE FOR APPROXIMATELY 10 SECONDS. FLIGHT ATTENDANT REPORTED WARNING FOR FORWARD LAVATORY WAS ILLUMINATED BUT THERE WAS NO INDICATION OF SMOKE OR ODORS. ECAM CLEARED ON ITS OWN. MAINTENANCE PERFORMED LAVATORY FIRE PROTECTION BITE AND CIDS BITE TESTS PER TSM 24-00-00-810-818-A WITH NO DEFECTS NOTED.