As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LAV 2R SMOKE DETECTOR WENT OFF ON APPROACH NO ONE INSIDE AND NO EVIDENCE OF SMOKE WHEN CREW REPORTED THIS TO HMC THEY ADDED THAT THERE WAS NO SMELL IN THE LAV AS WELL. REMOVED AND REPLACED SMOKE DETECTOR AT LAV M IN REF TO AMM 26-13-01-424-004. SYSTEM TEST PASSED IN REF TO AMM 26-13-00-735-034. OK TO CONTINUE.