As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) NR 5 CONNECTING ROD BEARING FAILED. BEARING FACE MATERIAL WAS BREAKING AWAY FROM BEARING. METAL CONTAMINATION WAS NOTED DURING PREFLIGHT CHECK. CONNECTING ROD BEARING HAD LOST APPROXIMATELY 15 PERCENT OF TOTAL SURFACE AREA. BOTH THE CRANKSHAFT AND IDLER GEAR HAD RECEIVED SIGNIFICANT DAMAGE TO THEIR TEETH. BOTH GEARS HAD TO BE REMOVED FROM SERVICE.