As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
OILY ODOR IN THE MAIN CABIN AND FLIGHT DECK, WITH APU BLEED AIR SUPPLYING BOTH PACKS. PERFORMED A DECONTAMINATION OF THE EVIRONMENTAL CONTROL SYSTEM WITH APU BLEED IAW AMM 21-80-00-015002-A. NO ODOR NOTED ON EITHER HOT OR COLD TEMPERATURES. AIRCRAFT WAS GOOD TO CONTINUE SERVICE.