As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 3815, THE CREW REPORTED THAT WHILE ON LANDING THEY RECEIVED A DUCT MONITOR FAULT MESSAGE AND ALSO NOTICED AN ODOR LIKE ANTI-FREEZE IN THE COCKPIT. AIRCRAFT REMOVED FROM SERVICE. GROUND RAN ACFT WITH ENGINE BLEEDS AND PACKS ON. COULD NOT DUPLICATE. NO DEFECTS NOTED. AIRCRAFT RETURNED TO SERVICE.