As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: PILOT REPORTS DIRTY SOCK- FUME SMELL NOTED IN DECENT INTO DFW-13000FT 4.4 D.PSI- ALT 2350 NOTICED MOST INFRONT + DOOR 3 AREA. MAINTENANCE DETERMINED THAT APU IS LEAKING AT THE INLET ALONG THE SEAL. APU CHANGE HAS BEEN DECLARED. ***SUPPLEMENTAL ACTION SECT.4, 5 AND 6: APU INLET SEAL LEAKING, REMOVED AND REPLACED APU.***(CLOSED)