As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING APPROACH, APPROX 12,000 FT, RECEIVED AN EICAS FOR THE FWD LAVATORY SMOKE WARNING, FOLLOWED ABOUT 15 SECONDS LATER BY AN AFT LAV SMOKE WARNING. . COMPLETED EMERGENCY CHECKLIST & QRH. NO VISIBLE SMOKE OR ODOR WAS DETECTED. ALARM CEASED ON OPENING THE PAX DOOR AT THE GATE. FALSE INDICATION. CHECKED MDC FOR MESSAGES NONE PRESENT. REPLACED FWD AND AFT LAV SMOKE DETECTORS IAW AMM 26-16-01, OPS CHECKED GOOD.