As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) SMOKE IN CABIN DURING DESCENT. MAINTENANCE, STARTING THE RT ENGINE, SMOKE OBSERVED FROM THE ENGINE ITSELF. THE ENGINEERS HAVE ISOLATED THE OIL LEAK TO THE DRAIN PIPE INDICATED BELOW. BORESCOPE INDICATED EXTENSIVE OIL WETTING EVIDENT AT THE 3RD STAGE LP COMP AND INLET INTO THE HP COMPRESSOR. CONTACT MADE WITH MFG REPRESENTATIVE. RT ENGINE CHANGE IS BEING COMPLETED.