As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ENGINE FAILED IN FLIGHT. NR 5 AND NR 6 CONNECTING ROD (CRANK END) PROTRUDING THROUGH TOP OF ENGINE CASE. HOLES IN BOTH SIDES OF CASE BELOW NR 5 AND NR 6 CYLINDERS ABOVE OIL PAN FLANGE. THE ENGINE HAS BEEN IN SERVICE SINCE 07/2016. IT IS A FACTORY REBUILT ENGINE.