As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DIRTY SOCK SMELL IN COCKPIT POSSIBLE PREVIOUS FUME SMELL SITLL EXISTS, OCCURRED ON DESCENT THROUGH ~16K' MSL AND THROUGH LANDING. FOUND OIL IN CONE. REMOVED FAN SHAFT COVER FOR INSP. REF. A321 AMM 72-11. FOUND GOUGES IN SHAFT COVER O-RING GROOVE. REPLACED ENG 1 FAN SHAFT COVER IAW A321 AMM 72-15. (LP 8600523 - AIRCRAFT WAS GROUNDED)