As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STRONG OIL ODOR ENTIRE A/C W/PACKS RUNNING. INSP APU AND APU BLEED DUCT NO OIL FND. INSP PACKS BAYS NOTHING ABNORMAL. RAN PACKS INDEPENDENTLY TRYING TO DETERMINE WHICH HAD MORE SMELL. PERFORMED DUCT BURNOUT UP TO STEP 10 PER M/M 250083. REPLACED APU PER AMM. FINISHED DUCT BURNOUT PER AMM 21-00-2.