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 WARNING ECAM INFLIGHT AT CRUISE THAT SELF-CLEARED AFTER ABOUT 7 SECONDS. MAINTENANCE NOTED ON THE SMOKE WARNINGS REPORT REFLECTED FAULTS AT THE AFT LEFT LAVATORY SMOKE DETECTOR. MAINTENACE CLEANED DUST FROM THE SMOKE DETECTOR FILTER PER TSM 26-17-00810-804-A