As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: DIRTY SOCK SMELL IN FLIGHT DECK DURING FINAL APPROACH, NO REPORTS OF ODOR IN THE CABIN. MAINTENANCE FOUND THE APU LEAKING OIL AT THE V BAND SEAL AND REPLACED IT PER TASK CARD 26L31049003. A DECONTAMINATION OF THE ENVIRONMENTAL CONTROL SYSTEM WAS ACCOMPLISHED ALONG WITH SATISFACTORY LEAK/ OPERATIONAL CHECK. ** (CLOSED)