As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ODOR OF DIRTY SOCKS IN FLIGHT DECK DURING DESCENT. UPON INSPECTION FOUND OIL LEAKING FROM APU OIL PRESSURE SWITCH. PERFORMED DECONTAMINATION PROCEDURE OF THE ENVIRONMENTAL CONTROL SYSTEM IAW AMM 21-00-00-615-002-A . NO EVIDENCE OF ANY FURTHER CONTAMINATION OR ODOR. ACFT OK FOR CONTINUED SERVICE.