As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IN COMPLYING WITH SB M92-09 DURING ASSEMBLY USING NEW 12-POINT NUT PN 652541 AND TORQUE OF 790-810 INCHES/POUNDS, ENGINE FAILED TO TURN WHEN FULL TORQUE WAS REACHED. UPON DISASSEMBLY, MAIN BEARING BORES WERE FOUND OUT OF ROUND. SUSPECT 'SOFT' CRANKCASE.