As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THIS ACFT RECEIVED NEW FROM CESSNA FACTORY. UPON REMOVAL OF PROPELLER TO FACILITATE INSTALL OF AFTERMARKET AIR CONDITIONERS, NOTED THAT 2 OF THE 4 PROPELLER ALIGNMENT BUSHINGS THAT ARE PRESSED INTO THE CRANKSHAFT FLANGE WERE EXTRUDED FROM THE BACKSIDE OF THE FLANGE APPROX .375 INCH. THE APPARENT CAUSE OF THIS DEFECT WAS THE IMPROPER CLOCKING OF THE PROP TO THE CRANKSHAFT. (X)