As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LAV SMOKE MASTER WARNING ENROUTE TO PDX. RAN CHECKLIST NO EVIDENCE OF SMOKE IN OR AROUND LAV. PASSENGER IN LAV AT TIMES CLAIMS THEY WERE NOT VAPING OR SMOKING BUT A SLIGHT SCENT OF VAPING SMELLED IN FLIGHT DECK. REMOVED FROM SERVICE. PERFORMED GVI OF BOTH LAV SMOKE DETECTORS. NO DEFECTS NOTED. PERFORMED LAV SMOKE DETECTOR OPERATIONAL TEST REF. AMM TASK 26-14-01-700-801-A. OPS TEST GOOD. NO DEFECTS NOTED. AIRCRAFT RETURNED TO SERVICE.