As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EXCESSIVE SMOKE COMING FROM ENGINE AT IDLE. FOUND HEAVY COKING ON THE OIL STRUT AND POOR DRAIN BACK FROM 6/7 BEARINGS. ENGINE WAS INSTALLED 53.9 HRS PRIOR TO EVENT. ENGINE REQUESTED TO BE REMOVED AND RETURNED TO KEYSTONE FOR EVALUATION.