As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING DECENT INTO DFW WE SMELLED A DIRTY SOCK ODOR IN THE FLIGHT DECK THE LEAD FA REPORTED THIS AS WELL. PERFORMED FIM 21-00 ASK 806 AND FOUND HYD B QTY AT OVER 106%. LOWERED HYD TO 99%. RAN APU AND NO SMELL DETECTED. RAN #1 AND #2 ENG, NO SMELL DETECTED AFTER 5 MINS. BOTH OILS AT 18. OK FOR SERVICE.