As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHEN DESCENDING THROUGH 3,000 FT, FA CALLED AND REPORTED A STRONG DIRTY SOCK ODOR IN CABIN. TURNED OFF THE NR 2 PACK AND FA REPORTED THAT THE ODOR DISIPATED AT OR BELOW FL 370. R & R THE NR 2 PACK PLENUM CHAMBER IAW AMM 21-52-22. R & R THE PIPE SEALS FROM ACM TO PRI. HEAT EXCHANGER AND PIPE SEALS FROM ACM TO MAIN HEAT EXCHANGER IAW AMM 21-52-23. OPS CHECKED GOOD.