As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 3115, DURING DESCENT CREW REPORTED BURNING ODOR AND SMOKE IN THE COCKPIT. AIRCRAFT REMOVED FROM SERVICE. PERFORMED EMB 140 FIM 21-20-00-810-801-A AND FIM 21-20-00-810-803-A. FOUND OIL OVERSERVICED AT LT ENGINE. CLEANED COWLING AND ENGINE COMPONENTS. PERFORMED ENGINE RUN IAW EMB 140 AMM 71-00-00. OPERATION CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.