As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DIRTY SOCK SMELL WHILE DECENDING THROUGH 7000 FT. WHEN PACK 1 WAS TURNED OFF SMELL WENT AWAY. ( 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) )-R/R FLOW CONTROL VALVE ASSY PACK 1 IAW AMM 21-51-00 NOFAULTS NOTED THIS CLEARS DMI 327360-1 MOC NOTIFIED PLACARD REMOVED