NTSB Identification: ATL92FA042.
The docket is stored on NTSB microfiche number 46346.
Accident occurred Saturday, February 01, 1992 in GEORGETOWN, SC
Probable Cause Approval Date: 03/12/1993
Aircraft: CESSNA T210L, registration: N732HG
Injuries: 2 Uninjured.

NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.

WHILE THE CRUISE FLIGHT AT 9500 FEET THE ENGINE SEIZED. A FORCED LANDING WAS MADE TO A DIVIDED HIGHWAY. TRAFFIC FORCED A LANDING IN THE MEDIAN WHERE THE WING HIT A SIGN & VEERED THE A/C INTO A DITCH. THE ENGINE HAD 121 HOURS SINCE OVERHAUL. EXAMINATION OF THE ENGINE REVEALED THAT THE REAR CRANKCASE THRU BOLTS WERE FINGER TIGHT. THE REAR MAIN BEARING HAD SPUN, THE NUMBER 1 ROD CAP SEPARATED, AND THE CRANKSHAFT HAD FRACTURED THROUGH THE COUNTERWEIGHT CHEEK.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

THE FAILURE OF OVERHAUL PERSONNEL TO PROPERLY TORQUE THE ENGINE CASE REAR THRU BOLTS.

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