As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BURNING ODOR, NO VISIBLE SMOKE ON SHORT FINAL. SMOKE ALARMS IN AFT LAVS ACTIVATED. ANTI-ICE IN USE, ODOR DISSIPATED WHEN ANTI-ICE SHUT OFF. REPLACED ANTICIPATORS AND THERMOSTATS L/R SIDE. NO SMOKE OR ODOR NOTED DURING ENGINE RUN WITH ANTI-ICE ON.