As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING DESCENT DETECTED A DIRTY SOCK ODOR IN COCKPIT. TURNED OFF PACK 1 AND SHUT CROSS BLEED VALVE. ODOR DISSIPATED . NO ODOR IN CABIN. IAW ODOR EVENT FORM FOUND NR 1 PACK, NR 1 ENGINE BLEED TO BE SUSPECT. PERFORMED DECONTAMINATION OF ECS IAW AMM 21-00-00. OPS & LEAK CHECKED GOOD. NO ODOR PRESENT. VISUALLY INSPECTED NR 1 ENGINE FOR LEAKS, NO LEAKS FOUND. R & R RECIRCULATION FILTERS IAW AMM 21-21-41