As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING ARRIVAL, HAD AN ODOR. TURNED OFF THE PACKS & CROSS BLEED AND ODOR DISSATED. FOUND APU BAY WITH OIL, CLEANED APU BAY AND PERFORMED DECONTAMINATION OF THE ENVIRONMENTAL CONTROL FROM APU AS SOURCE OF CONTAMINATION. NO FURTHER ODORS IAW AMM 21-00-00.