As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAT WAS NOT GROUNDED: MOMENTARY ECAM LAVATORY SMOKE. CLEARED BY ITSELF WITHIN 5 SECONDS. HAPPENED TWICE. NO EVIDENCE OF SMOKE OR FIRE DETECTED BY FLIGHT ATTENDANTS WITH VISUAL INSPECTION OF ALL LAVATORIES. MAINTENANCE RESET THE SYTEM AND COULD NOT DUPLICATE THE FAULT MESSAGE PER AMM 26-17-00.