As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EXPERIENCED STRONG FUMES ON DESCENT IN COCKPIT. CABIN FUMES SMELLED LIKE WET SOCKS AND DUSTY BURNING ODOR SIMILAR TO A HEATER TURNING ON FOR FIRST TIME. FUMES NOTICED AT FL215 AND WORSE BELOW FL160. SAME ODOR NOTICED ON DEPT BUT AT A LESSER STRENGTH AFTER FOLLOWING QRH PROCEDURES FUMES DEMINISHED AFTER TURNING OFF PACKS 1 AND 2 . FUMES WERE STRONGEST IN COCKPIT AND AFT CABIN. ON W/O 852394 REPLACED NR 2 ENGINE IAW TC A320-71-00-20-000-040. ENGINE NR 1 REPLACEMENT COMPLETED IAW TASK CARD UNDER WO 852396.