As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FUME EVENT AFTER EXTERNAL AIR START. ON INSPECTION OF APU, FOUND THE ELBOW TO HAVE A SMALL EVICENCE OF OIL IAW AMM 49-16-00. PERFORMED A PACK BURN OUT PROCEDURE IAW 71-00-00-810-801-A. APU REMAINS ON DMI FOUND NO EVIDENCE OF ODOR IN CABIN AT THIS TIME