As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHORTLY AFTER TAKEOFF FROM HFD, PILOT NOTICED RIGHT ENGINE RUNNING ROUGH. PILOT DIVERTED TO BDL AND LANDED SAFELY WITHOUT INCIDENT. AIRNET SYSTEMS MAINTENANCE REPLACED ALL SPARK PLUGS, RUN UP AND OPERATIONALLY CHECK GOOD. NO FURTHER DEFECTS NOTED.