As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TOILET SMOKE CAUTION POSTED. INSPECT COALESCER SOCKS WITH BLACK LIGHT FOR SIGNS OF OIL RUN ENGINES TO DUPLICATE CONDITION AND ISOLATE THE SOURCE (LT, RT, AND APU). INSPECT DUCTS ON BOTH SIDES FOR SIGNS OF OIL WITH BLACK LIGHT EXAMINE HEAT EXCHANGERS FOR OIL OR RESIDUAL. REPLACE SMOKE DETECTOR.