As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOR FLIGHT 3545 ON POST FLIGHT SMOKE HAD BEEN COMING OUT OF THE NR 1 ENGINE FOR OVER 20 MINUTES. THE AIRCRAFT WAS REMOVED FROM SERVICE. INSPECTED NR 1 ENGINE EXHAUST AREA FOUND NO OIL LEAKS. PERFORMED TAKEOFF POWER ENGINE RUN BN IAW EMB AMM 71-00-01 NO SMOKE NOTED. NO PARTS REMOVED OR REPLACED. THE AIRCRAFT WAS RETURNED TO SERVICE.