As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STRANGE ODOR ON DESCENT STARTED AT 13000 DAMP DIRTY SOCK SMELL PER TSM 05-50-00-810-831-A TYPE 6 LEVEL A PERFORMED PACK BURN FOR 25 MINS AND ALSO REMOVED AND REPLACED RECIRCULATION FILTER CARTRIDGES PER AMM TASK 21-21-41-000-001-A PACKS RAN NORMAL AND NO SMELLS INDICATED ALSO INSPECTED RIGHT PACK AND NO INDICATIONS OF RESIDUE.