As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING DECENT ODOR FUMES SMELLED FROM FL220 TO 12000FT ODOR WENT AWAY BELOW 12000 ISLOLATED PACK 1 AT GATE WITH APU ( PACKS A320 WITH MOD 31283/MP P7125 (FWC H2-F1 STND) AND WITH MOD. 30626/MP K6443 (ENHANCED ECS) - FAULT CAUTIONS ASSOCIATED WITH OPERATIV--