As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT ATTENDANT REPORTED DIRTY SOCK ODOR IN REAR CABIN DURING DESCENT. TURNED OFF PACK # 2 PER COM PROCEDURE AND FLIGHT ATTENDANT REPORTED ORDOR WENT AWAY. PERFORMED TSM 05-50-00-810-831-A FOUND APU OVER SERVICED. DRAIN APU & SERVICED TO CORRECT LEVEL IAW AMMM 12-13-49 OPERATED BOTH PACKS, NO ODOR DETECTED, OPERATIONS CHECK GOOD A/C GOOD FOR SERVICE.