As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE PILOT REPORTED AFTER LANDING SMOKE AND BURNING PLASTIC SMELL COMING FROM THE AREA OF THE RIGHT ENGINE. MAINTENANCE INSPECTED AND FOUND THE RIGHT ENGINE ALTERNATOR HAD AN ELECTRICAL SMELL. REMOVED AND REPLACED THE RIGHT ENGINE ALTERNATOR AND VOLTAGE REGULATOR AS A PRECAUTION. NO FURTHER DEFECTS NOTED.