As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: FORWARD LAVATORY SMOKE ECAM FOR APPROXIMATEY 7 SECONDS, THEN SELF CLEARED.VERIFIED NO SMOKE IN ANY LAVATORIES. MAINTENANCE NOTED NO STATUS MESSAGE PRESENT AND ACCOMPLISHED A SATISFACTORY OPERATIONAL TEST OF THE SMOKE DETECTION SYSTEM WITH NO FAULTS NOTED.