As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS ENROUTE, PIC NOTICED THE AIRCRAFT YAWING WAY TO THE RIGHT. THERE WAS NOT ANY LOSS OF OIL OR FUEL PRESSURE NOR ANY VIBRATION. THE PILOT SHUT THE ENGINE DOWN AND LANDED. THE OIL PAN WAS REMOVED AND FOUND THE CAMSHAFT WAS BROKEN. HAVE NO IDEA WHAT CAUSED THE FAILURE. (SW05200403504)