As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING INVESTIGATION OF PILOT REPORT FOR SMOKE IN THE COCKPIT IT WAS DISCOVERED THE LEFT ENGINE RIGHT EXHAUST PIPE HAD BROKEN, WHICH CAUSED DAMAGE TO A TKS LINE AND AN ALTERNATE AIR CONTROL CABLE IN THE VICINITY. THE EXHAUST PIPE WAS REPLACED WITH NO FURTHER DEFECTS NOTED.