As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: FLIGHT CREW REPORTED A POSSIBLE ERRONEOUS SMOKE DETECTION IN THE FORWARD LAVATORY, FLIGHT ATTENDANT REPORTED THAT THERE WAS NO ONE WAS IN THE LAVATORY AT THE TIME AND IT DIDN'T SMELL LIKE SMOKE. ONLY WAS ON THE ECAM FOR A COUPLE SECONDS BEFORE GOING AWAY. MAINTENANCE PERFORM FUNCTIONAL TEST OF LAVATORY SMOKE DETECTION SYSTEM PER AMM 26-17-00 WITH NO ISSUES OR FAULTS NOTED.