As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE IN FLIGHT, AT CRUISE POWER, A LOSS OF MANIFOLD PRESSURE AND ENGINE ROUGHNESS WAS EXPERIENCED. THE ENGINE WAS SHUTDOWN. A NORMAL LANDING WAS MADE AT THE INTENDED DESTINATION. INSP REVEALED THAT NR 2 CYLINDER HEAD HAD SEPARATED. NO STRUCTURAL DAMAGE OCCURRED. (K)