Crash of a Cessna 421B Golden Eagle II in Savannah: 4 killed

The pilot reported he was on a missed approach and was returning to Charleston "heading 360°..." the aircraft crashed about 1/4 mi south and 100 feet short of the departure end of runway 27. The wreckage scatter pattern was oriented on a heading of 155°. Missed approach procedures specify a climbing right turn via a 325° heading. The left engine prop drive gear shaft had evidence of both bending and torsional failure loads. There was no evidence of machining or rotational smearing. Two of the three propeller blade tips were bent aft about the blade face. The left turbocharger had a tension failure of the turbine wheel shaft. No smear marks were noted on the fracture face. Single turbine blade impact marks were noted on the housing. The n°1 tach needle indicated 900 rpm and the n°2 tach needle indicated 1,900 rpm. All four occupants were killed.