As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: ECAM WARNING SMOKE LAVATORY SMOKE OCCURRED TWICE WITHIN ONE MINUTE DURING CLIMB. PASSENGER HAD USED THE AFFECTED AFT LAVATORY D. FLIGHT ATTENDANT INVESTIGATED THE LAVATORY AND FOUND NO SMOKE, OR FUMES. PASSENGER DID STATE THAT THE DOOR UNDER LAVATORY SINK WAS OPEN AND THAT HE HAD SLAMMED IT SHUT. MAINTENANCE ACCOMPLISHED TSM 26-17-00 AND NO MESSAGES DISPLAYED AND A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED.