THE HOMEBUILT ACFT WITH 3 PERSONS ABOARD LOST ITS PROPELLER AFTER THE CRANKSHAFT FAILED DURING CRUISE. A FORCED LANDING WAS EXECUTED ON A STATE HIGHWAY. THE PLT SAID HE LOST DIRECTIONAL CONTROL AT ABOUT 30 MPH AND CONTACTED A DITCH AND TWO FENCE POSTS. THE PLT HAS NOT FILED AN ACCIDENT REPORT.
The National Transportation Safety Board determines the probable cause(s) of this accident as follows:
Contributing Factors
OBJECT..FENCEPROPELLER SYSTEM/ACCESSORIES,HUB..SEPARATIONTERRAIN CONDITION..DITCH
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