As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FA'S REPORT DIRTY SOCK SMELL FWD AND AFT CABIN ON DESCENT @ 10,000FT-PERFORMED TSM 05-50-00-810-831-A AND OPERATED PACKS WITH APU AND ENGINES, REF AMM 12-33-21-618-001-A02 AND AMM 71-00-00-720-811-A. NO ODOR PRESENT. UNABLE TO DUPLICATE. A/C OK FOR SERVICE