As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER LANDING AND ENGINE SHUTDOWN, AIRCRAFT OBSERVED TO HAVE SMOKE COMING OUT OF NOSE SECTION. ON INSPECTION, FOUND AIR CONDITIONER COMPRESSOR SEIZED. SMOKE WAS CAUSED BY COMPRESSOR DRIVE MOTOR BELTS DRIVING THE SEIZED PULLEY ON COMPRESSOR, MELTING THE BELTS. OPENING COMPRESSOR FOUND CONNECTING ROD PIECES IN BOTTOM OF CRANKCASE.