What was found
FUME EVENT DURING DESCENT AND APPROACH PHASE OF FLIGHT. DIRTY SOCK SMELL IN COKPIT ONLY. ( 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 )-PERFORMED FUNCTIONAL CHECK OF THE #1 PACK RAN FULL HOT AND FULL COLD FOR OVER 1 HOUR NO DIRTY SOCK SMELL NOTED AT THIS TIME THIS CLEARS DMI# 251355801 PLACARD MOC NOITFIED.