As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIR QUALITY EVENT ON APPROACH. DIRTY SOCK SMELL ROW 20/22. ( PACKS - A320 WITH MOD. 30626/MP K6443 (ENHANCED ECS) OR A321 WITH MOD. 157080/MP K17996 (PACK FLOW SELECTOR) AND WITH MOD. 30626/MP K6443 (ENHANCED ECS) )-REACTIVATED PACK IAW AMM 21-51-00. REF LP 3351557-1. PERFORMED LEVEL A DECONTAMINATION OF ECS IAW AMM 21-00-00-615-802-A. NO ODOR FOUND FROM PACK #2. PLACARD REMOVED DMI UPDATED. THIS CLEARDS DMI 3351555-1.