As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SMOKE LAVATORY SMOKE ECAM TRIGGERED DURING CRUISE, THEN EXTINGUISHED AFTER APP 4 SECONDS. F/A'S REPORTED NO SIGNS OF SMOKE IN ALL LAVS.// PERFORMED GVI OF ALL LAV, NO DEFECTS NOTED. OPS TEST THE LAVATORY/SMOKE DETECTION SYS PER AMM TASK 26-17-00-710-001-A. OPS TEST OK. OK FOR SVC.