As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NEW PROP WAS INSTALLED. ENGINE DEVELOPED METAL. PROP WAS BROUGHT TO SHOP TO BE FLUSHED OUT. AFTER CYL REMOVAL, PITCH CHANGE TUBE (PISTON ROD) WAS FOUND TO BE TORQUED AT 75 FT LBS INSTEAD OF 40 FT LBS. PROP WAS DISASSEMBLED AND REASSEMBLED TO MAKE SURE FORK WAS NOT UPSIDE DOWN. (K)