As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SMOKE AFT LAVATORY WARNING DURING APPROACH 14000 FT. FOLLOWED NON-NORMAL CHECKLIST & INSPECTED AFT LAVATORY NO SMOKE OR FUMES NOTED. PERFORMED OPERATIONS TEST OF AFT LAVATORY SMOKE DETECT SYS IAW AMM 26-16-00. NO DEFECTS NOTED, COULD NOT DUPLICATE. OK FOR SERVICE.