As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FLIGHT, VIBRATION WAS NOTED ON RT ENGINE. INSPECTED ENGINE AND FOUND NR 6 CYLINDER SEPARATED WHERE BARREL MEETS HEAD. PROBABLE CAUSE: UNKNOWN. RECOMMENDATIONS: THIS IS AN ECI CYLINDER. REFERENCE NEEDS TO BE MADE TO THEM TO RESOLVE THE PROBLEM. (K)