As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING APPROACH, HAD FUMES AND OR HOT SMELL IN CABIN AND COCKPIT WITH AIR FOIL ANTI-ICE SELECTED, SMELL GOT STRONGER WITH TAIL DE-ICE ON. LAVATORY SMOKE DETECTORS ACTIVATED. LANDED ATL. REPLACED TEMPERATURE SENSOR RAN ENGINES AND PACKS WITH ANTI-ICE ON OPERATION NORMAL.