As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
F/A REPORTED SEEN A MIST ON THE CABIN WITH AN OILY ODOR POSSIBLE ASSOCIATED WITH BLEED AIR. ACCOMPLISHED ENGINE START AND RUN AT GROUND IDLE FOR 30 MINUTES WITH AND WITHOUT AIR BLEED. NO ODOR OR SMOKE NOTICE. SYSTEM FOUND NORMAL IAW MM NR 72-00-01.