As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFER TAKING ON FUEL AT BAF, THE AIRCRAFT DEPARTED FOR 47N. WHILE CLIMBING OUT THROUGH 2500 MSL, THE AIRCRAFT ENGINE SUFFERED CATASTROPHIC FAILURE OF CYLINDER NUMBER 4. THE UPPER SECTION OF THE CYLINDER BARREL SEPERATED FROM THE LOWER SECTION APPROXIMATELY FOUR INCHES ABOVE THE CYLINDER FLANGE.