As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: A REPORTED MILD TO MODERATE TRANSIENT ODOR THAT SMELT LIKE A DIRTY SOCK IN A LOCKER ROOM, DURING DESCENT APPROXIMATELY 5 TO 10 MINUTES. ACCOMPLISHED TROUBLESHOOTING OF SMOKE ODOR FUMES, PER WORKCARD 09L00021001. NO ODOR FOR ENGINES OR APU FOUND. NO FAULT FOUND.