As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DIRTY SOCK SMELL ON DESCENT TO LANDING ( PACKS A320 WITH MOD 31283/MP P7125 (FWC H2-F1 STND) AND WITH MOD. 30626/MP K6443 (ENHANCED ECS) - FAULT CAUTIONS ASSOCIATED WITH OPERATIVE SIDE NOT DISPLAYED )-PREFORMED LEVEL C DECONTAMINATION OF THE ECS. FOUND CONTAMINATION OF THE MIXER UNIT. CLEANED IAW AMM 21-00-00-615-804-A. NO ODOR NOTED. OPS CHECK GOOD. THIS CLEARS DMI#2564551-1. MOC NOT PLCARD RMD