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 ON CLIMB OUT AND LANDING IN THE CABIN AND COCKPIT. COMPLIED WITH JOB CARD 08L00021001 AND FOUND NO DEFECTS AT HIS TIME WITH EITHER ACM, RECIRCULATING FANS, HEAT EXCHANGERS OR CONDENSERS. CHANGED RECIRCULATING FILTERS AS REQUIRED.