As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING DECENT BETWEEN 12000 TO 8000 STRONG ODOR/DIRTY SOCK SMELL IN AFT CABIN SHUT OFF PACK 2 AND SMELL DISSIPATED.-PERFORMED TSM 05-50-00-810-831 FOUND BOTH PACKS CONTAMINATED PERFORMED DECONTAMINATION. NO OIL LEAKS NOTED ON ENGINES IAW AMM 21-00-00. NO ODOR NOTED.