As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DESCENDING THROUGH 6000' ON APPROACH, DIRTY SOCKS SMELL OCCURED IN COCKPIT. APPLIED ELIMINATION OF FUMES/ODOR PROCEDURE WITH PACK 1 SELECTED OFF AND SMELL WENT AWAY. NO ODOR DETECTED IN CABIN -REF TSM 05-50-00-810-831-A. PACK #1 IDENTIFIED AS THE CAUSE OF THE ODOR. INSPECTED ENG #1 AND ENG #2 OIL LVL. IAW AMM 79-00-00. OIL LVL OF BOTH ENG'S FOUND TO BE WITHIN LIMITS