As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AIRCRAFT NOT GROUNDED) FA REPORTED, ON DESCENT SMELLED CHEMICAL SMELL TURNED INTO DIRTY MUSKY GYM SMELL, IN AFT GALLEY. / REF AML 2210448 FOR REMOVAL AND REPLACEMENT OF APU OIL COOLER AND FAN OUTLET DUCT. REF WO # 564339 FOR COMPLETION OF TASK CARD A32X-21-000-002 OIL TYPE SMELL- PHASE 2"