As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
OIL ODOR IN CABIN. DUE TO OIL ODOR IN CABIN BOROSCOPE APU LOAD COMPRESSOR AND LOOK FOR SIGNS OF OIL LEAKAGE. ACCOMPLISHED BOROSCOPE INSPECTION OF APU LOAD COMPRESSOR. EVIDENCE OF OIL LEAKAGE AND COKING. REPLACED NR 2 ENGINE, APU, LT ACM AND LT HEAT EXCHANGER. ACCOMPLISHED PACK BURNOUT. NO SMELL NOTED DURING ENG RUNS AFTER MAINTENANCE ACCOMPLISHED.