As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT REAR LAVATORY SMOKE DETECTOR WENT OFF ON FINAL APPROACH. NO SMOKE OR FUMES OBSERVED. PAX NOTED BURNED RUBBER ODOR IN AFT CABIN. ENGINE AND AIRFRAME ANTI-ICE WERE ON. FOUND RT TAILCONE SECTION COVERED IN DE-ICING FLUID, FOUND RED FIRE BLANKET MELTED TO PNEUMATIC DUCT FROM RT ENG. CLEANED AND RAN BOTH ENG'S NO SMOKE OR FUMES NOTED.