As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING CRUISE, THERE WAS A LOUD BANG FROM THE ENGINE AND THE ACFT LOST POWER. PILOT EXECUTED A FORCED LANDING. UPON INSPECTION, MAINTENANCE FOUND THAT THE HEAD WAS CRACKED ON THE NR 9 CYLINDER. ENGINE TSO AT TIME OF INCIDENT WAS 275.9.