As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AIRCRAFT NOT GROUNDED) DIRTY SOCK SMELL ENCOUNTERED ON DECENT WITH ENG ANTI ICE ON THROUGH VISIBLE MOISTURE. / (FINAL TROUBLESHOOTING) PERFORMED T/C 21-000-001, COULD NOT DUPLICATE ODOR. COMPLIED WITH TASK CARD 21-000-002.THIS CLEARS M313 MDDR 203260."