As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED. LAVATORY SMOKE LIGHT AND ALARM ACTIVATED INTERMITTENTLY DURING DESCENT AND AFTER PARKING WITH NO EVIDENCE OF SMOKE OR HEAT IN ANY LAVATORY. ACCOMPLISHED LAVATORY INSPECTION, IAW AMM 26-14-00, OPERATIONS CHECK GOOD.