As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT NOT GROUNEDED: PILOT REPORTS DURING CLIMBOUT THE FWD LAVATORY SMOKE ECAM WARNING TRIGGERED. THE ALERT WAS ACTIVE FOR APPROX 15 SECONDS BEFORE SELF CLEARING. F/A RESPONDED THAT NONE OF THE LAVS HAD ANY SMOKE DETECTABLE. MAINTENANCE PERFORMED OPS TEST OF THE LAV SMOKE DETECTION SYSTEM IAW AMM 26-17-00. NO FAULTS NOTED.