As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GASKET PN MS914401 THAT IS SUPLIED WITH THE NEW GOVERNOR DOES NOT COVER THE FULL FACE MATING SURFACE OF THE GOVERNOR EXPOSING APPROX. .0625 INCH OF THE LOWER SCREW HOLE. THE LOWER SCREW HOLE INTERSECTS AN OIL PRESSURE CAVITY ON THE ENGINE MATING SERVICE. THE SHORT GASKET LEAKS OIL FROM LOW RPM. DURING AN INITIAL FLIGHT OVER 4 QUARTS OF OIL LEAKED IN LESS THAN 15 MINUTES OF FLIGHT.