NTSB Identification: DEN83LA145.
The docket is stored on NTSB microfiche number 22334.
Accident occurred Saturday, June 18, 1983 in ST. GEORGE, UT
Aircraft: CESSNA 195A, registration: N1537H
Injuries: 1 Uninjured.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

THE PROP BLADE SEPARATED CAUSING THE ACFT TO VEER SHARPLY TO THE LEFT OUT OF CONTROL. THE ACFT CAME TO REST ABOUT 30 FT FROM THE RWY WITH THE RIGHT MAIN LANDING GEAR BROKEN OFF. A METALLURGICAL EXAM REVEALED THAT THE BLADE FAILED FROM FATIGUE. THE FATIGUE ORIGIN WAS AT A SUBSURFACE INCLUSION. A CORROSION CRACK WAS PRESENT FROM THE OUTSIDE SURFACE ON THEOUTER SIDE OF THE BLADE. THIS CRACK SHOWED CORROSION PRODUCTS. THE BLADES WAS OVERHAULED 5 MONTHS PRIOR TO THE ACCIDENT.THE BLADES WERE INSPECTED FOR CRACKS BY USING A DYE PENETRANT TEST IAW THE OVERHAUL MANUAL. AN EDDY CURRENT TEST WAS USED ONLY FOR THE INSIDE OF THE BORE.

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

PROPELLER SYSTEM/ACCESSORIES,BLADE..FATIGUE

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

PROPELLER SYSTEM/ACCESSORIES,BLADE..FAILURE,TOTAL


Contributing Factors

DIRECTIONAL CONTROL..NOT POSSIBLE..PILOT IN COMMAND



Contributing Factors

GROUND LOOP/SWERVE..UNCONTROLLED..PILOT IN COMMAND

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