What was found
DIRTY SOCK ODOR AT 6,000 FT ON FINAL DESCENT, FOLLOWED SOP & SHUT DOWN THE NR 1 PACK. ODOR DISSIPATED, LANDED WITH NO FURTHER INCIDENT. PERFORMED DECONTAMINATION OF THE ENVIROMENTAL CONTROL SYSTEM IAW AMM 21-00-00. REMOVED AND REPLACED RECIRCULATION FILTERS FOR SUSPECTED CONTAMINATION IAW AMM 21-21-40. OPS CHECKED GOOD NO ODORS DETECTED