As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
POSSIBLE FUME EVENT DESCENDING THROUGH 15K FEET A MUSTY ELECTRICAL SMELL OCCURED ONLY IN FLIGHT DECK PACK I WAS DEACTIVATED AND THE ODOR WAS ELIMINATED IN A FEW SECONDS ( 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 )--