As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GNDED. VERY STRONG ODOR DIRTY SOCK SMELL IRRITATES NASAL PASSAGES BADLY. FOUND APU LEAKING OIL FROM TURBINE ACCESS PLATE AFT OF INLET & REPLACED THE APU IAW TASK CARD 26L31049003. A SATISFACTORY OPERATIONAL & LEAK CHECK WAS ACCOMPLISHED & NO ODORS WERE DETECTED.