As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) AFTER TAKEOFF THE CYLINDER AND OIL TEMPERATURES BECAME HIGH AND THE OIL PRESSURE WAS DROPPING, THE PILOT RETURNED TO BASE. TWO CYLINDERS HAD RECENTLY BEEN REPLACED AND INVESTIGATION HAD FOUND THAT THE WRONG PISTON RINGS HAD BEEN INSTALLED. THE ENGINE WAS REPLACED.