As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT 5038, DIRTY SOCK SMELL ON DESCENT THRU 5,000'. PERFORMED SMOKE AND FUMES QRH. ISOLATED SMELL WITH PACK 1 OFF. SMELL ONLY IN FLIGHT DECK. CORRECTIVE ACTION: REPLACED NBR 1 ENGINE SPINNER SEAL IAW A321 AMM 72-15. PERFORMED LEVEL B TYPE 2 DECONTAMINATION IAW WC 0550-2002 USING ENG #1 BLEED. (LP 7533185)