As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INTO TO MX: DURING DESCENT BEGINNING AT 18,000 FT. THROUGH SHUTDOWN FUMES/ODOR "STINKY SOCK" OIL/HYDRAULIC. GROUNDED - YES. NOTED BY MAIN. PERFORM LVL A DECON OF ECS PER AMM 21-00-00-615-809-A AND RAN BOTH ENGS. NO STINKY SMELL NOTED. OF FOR SVC.