As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING 100-HOUR INSPECTION OF ENGINE, A FACTORY REMANUFACTURE WITH 100 HOURS ON IT, A CRACK OR CASTING FLAW WAS DISCOVERED NEAR THE INTAKE FLANGE AREA, APPROXIMATELY .75 INCH DOWN FROM THE INTAKE FLANGE TOWARDS THE FIN AREA WHERE THE FINS MEET THE INTAKE PORT ON CYLINDER NR 4 OF LEFT ENGINE.