As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
A STRONG DIRTY SOCK SMELL WHEN THEY WALKED INTO CABIN. R & R APU IAW JOB CARD 26L31049005. COMPLIED WITH DECONTAMINATION OF ENVIRONMENTAL CONTROL SYSTEMS IAW JOB CARDS 26L00021001, 26L00021002, 26L00021004, 26L31049009 & 26L31049005. OPERATIONS CHECKED GOOD.