As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GNDED. ACFT HAS STRONG DIRTY SOCK SMELL. REPLACED APU IAW TC 26L31049005. ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK. COMPLIED WITH DECONTAMINATION CARDS 26L00021004, 26L00021001 & 26L00021002, O SMELL NOTED AT THIS TIME.