As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FLIGHT, PILOT NOTICED SMOKE COMING FROM OUTBOARD OF RIGHT NACELLE. PILOT SHUT DOWN ENGINE AS A PRECAUTION AND RETURNED TO BASE. MAINTENANCE DISCOVERED OIL PRESSURE LINE FROM REAR CASE TO FIREWALL HAD COME IN CONTACT WITH EXHAUST WHICH BURNED A HOLE THROUGH THE FIRESLEEVE AND THEN THE HOSE CAUSING OIL TO BURN ON THE EXHAUST.