As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) ON SELECTING FLIGHT IDLE DURING ROUTINE GROUND CHECKS, A CONSTANT OIL ODOR WAS OBSERVED THROUGHOUT THE ACFT FRONT AND BACK. ACFT WAS RETURNED TO STAND AND ENGINES WERE SHUTDOWN. EXTENSIVE ENGINES GROUND RUNS WERE NOT ABLE TO REPRODUCE OR DETECT ODORS AND TROUBLESHOOTING REVEALED NO ANOMALIES.