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NTSB Report
June 18, 1983 · Cessna 195A · N1537H
St. George, UT
Overview
Report Status
Preliminary report
Event Type
Accident
Date
June 18, 1983
Injury Outcomes
No injuries (1 uninjured)
Location
St. George, UT
Aircraft
Cessna 195A
Tail Number
N1537H
Injuries
None
Aircraft Damage
Substantial
NTSB Number
DEN83LA145
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.
Full Narrative
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.
Flight
Event TypeAccident
Event Time10:30 MDT
Nearest AirportSt. George Muni (0nm N)
Runway16
Runway Length6100 ft
Runway Width100 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna 195A
Tail NumberN1537H
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsJacobs · R-755-A2 · Reciprocating · 300
Seats4
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 66 · Third Class
Conditions
ConditionsVMC
LightDaylight
WindCalm
Visibility30 sm
CeilingNone
Temperature / Dew Point0 C / 0 C
Altimeter29.00 inHg
Observation Time17:02
Weather SourceWFAC