As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING TEARDOWN OF A TIME EXPIRED ENGINE IT WAS DISCOVERED THE OIL TRANSFER TUBE IN THE CRANKSHAFT TO THE #6 CONNECTING ROD HAD WORKED LOOSE AND BEGAN WEARING INTO THE CONNECTING ROD BEARING. THIS TUBE IS FIXED AT MANUFACTURE. THE CRANKSHAFT WAS SCRAPPED.