As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT ATTENDANT REPORTS WET SOCKS, MUSTY ODOR WHICH IS WORSE AT L2 DOOR. ODOR SEEMED TO GET LESS WITH RIGHT PACK OFF. TURNED RIGHT BLEED OFF. ODOR CAME BACK AT LOW THRUST DURING DESENT. AIRCRAFT WAS GROUNDED. MAINTENANCE REPLACED THE NR 1 ENGINE AND THE APU.