As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT ATTENDANTS REPORTED AN OILY SMELL IN EXTREME AFT CABIN AND AFT GALLEY DURING TAXI-OUT AND TAXI-IN ONLY WITH APU BLEED ON. MAINTENANCE ACCOMPLISHED J/C 26L00021001 AND FOUND THE APU OVERSERVICED. SERVICED APU AND PLACED ON MEL 36-12-01A, APU BLEED AIR INOP. SUBSEQUENTLY, MAINTENANCE ACCOMPLISHED J/C 26L00021002 AND 26L00021004 ESC DECONTAMINATION. REMOVED MEL 36-12-01A.