As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT ATTENDANTS REPORT ELECTRICAL/DIRTY SOCK SMELL ON DESCENT. APU OFF SMELL IN FORWARD GALLEY AND 3 L/R POSITIONS. THE AIRCRAFT WAS GROUNDED. APU OIL TEMPERATURE SENSOR REPLACED IAW AMM 49-94-15. NO ODOR NOTED AFTER APU AND ENGINE RUN.