As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FA IN AFT CABIN REPORTS DIRTY SOCK SMELL DURING DECENT AND AT GATE. IT WAS ALSO SMELLED IN FWD CABIN AND ON THE FLIGHT DECK. PACK 1 WAS TURNED OFF-TROUBLESHOOTING DONE IAW TSM 05-50-00-810-831-A AND ISOLATED APU AS SOURCE OF ODOR. SEE L/P 3022088-2 FOR APU DEFERRAL