As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LAS - FFW - DURING CRUISE, THE CREW RECEIVED AN ECAM SMOKE LAVATORY AND CARGO DETECTION FAULT. UPON INVESTIGATION, THERE WAS NO SMOKE/FIRE. THE CREW DETERMINED IT WAS A FALSE WARNING. MAINTENANCE REPLACED THE RIGHT LAVATORY SMOKE DETECTOR. OPS CHECKED GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.