As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CDG CREW REPORTED DURING CLIMB, SMOKE DETECTORS FROM LAVATORIES F1 & FS3 ACTIVATED. NO SMOKE, FIRE OR SMELL NOTED. FLIGHT LANDED CDG WITHOUT INCIDENT. ACCOMPLISHED LAVATORY SMOKE DETECTION & FIRE PROTECTION PROBLEM WITH NO FAULTS FOUND. SYSTEM GROUND CHECKED NORMAL. OPERATION (CLOSED).