As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DIRTY SOCKS ODOR IN AFT CABIN REPORTED BY FLIGHT ATTENDANTS IN DESCENT. -ACCOMPLISH TSM 05-50-00-810-831. FOR CABIN ODOR RAN BOTH PACKS ON APU BLEED. ISOLATED PACKS, NO SIGN OF CONTAMINATION. INSPECTED PACKS AND APU AREAS. NO SIGN OF POSSIBLE CAUSE. PRECAUTIONARY, PEFORM DECONTAMINATION OF THE ENVIORMENTAL CTL SYS. IAW AMM 21-00-00. NO SMELL NOTED AFTER DECONTAMINATION.