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NTSB Report
July 5, 1992 · Stinson 108-3 · N592C
Montague, CA
Overview
Report Status
Probable Cause
Event Type
Accident
Date
July 5, 1992
Injury Outcomes
No injuries (2 uninjured)
Location
Montague, CA
Aircraft
Stinson 108-3
Tail Number
N592C
Operator
Talmadge Westmoreland
Injuries
None
Aircraft Damage
Substantial
NTSB Number
LAX92LA282
ACCORDING TO THE PILOT, THE LEFT MAIN WHEEL DISINTEGRATED JUST AFTER TOUCHDOWN AND HE COULD NOT PREVENT THE AIRCRAFT FROM VEERING OFF THE RUNWAY. AS THE AIRCRAFT ENTERED THE GRASSY DIRT AREA NEXT TO THE RUNWAY, THE LEFT AXLE DUG INTO THE SOIL AND THE AIRCRAFT NOSED OVER. THE PILOT REPORTED THAT THE WHEEL ASSEMBLY WAS AN ORIGINAL EQUIPMENT ITEM ON THE AIRCRAFT, WHICH WAS MANUFACTURED IN 1948 AND HAS ACCRUED A TOTAL TIME IN SERVICE OF 1,407 HOURS. THE PILOT SAID HE HAD REMOVED AND INSPECTED THE WHEEL THE DAY BEFORE THE ACCIDENT AND THAT IT APPEARED NORMAL. POST ACCIDENT INSPECTION OF THE WHEEL PIECES BY THE PILOT REVEALED EVIDENCE OF A SMALL FAIRLY RECENT CRACK IN THE WHEEL CASTING NEAR THE AXLE. THE PILOT FURTHER SAID THE CRACK WAS IN THE INSIDE PART OF THE WHEEL AND UNDER THE TIRE WHERE IT COULDN'T HAVE BEEN OBSERVED UNLESS THE WHEEL HAD BEEN COMPLETELY DISASSEMBLED.
NTSB Probable Cause
THE DISINTEGRATION OF THE LEFT WHEEL DURING THE LANDING ROLL OUT AND THE RESULTANT INABILITY OF THE PILOT TO MAINTAIN DIRECTIONAL CONTROL OF THE AIRCRAFT. A FACTOR IN THE ACCIDENT WAS THE SOFT NATURE OF THE TERRAIN ENCOUNTERED BY THE AIRCRAFT AFTER LEAVING THE RUNWAY SURFACE.
Full Narrative
ACCORDING TO THE PILOT, THE LEFT MAIN WHEEL DISINTEGRATED JUST AFTER TOUCHDOWN AND HE COULD NOT PREVENT THE AIRCRAFT FROM VEERING OFF THE RUNWAY. AS THE AIRCRAFT ENTERED THE GRASSY DIRT AREA NEXT TO THE RUNWAY, THE LEFT AXLE DUG INTO THE SOIL AND THE AIRCRAFT NOSED OVER. THE PILOT REPORTED THAT THE WHEEL ASSEMBLY WAS AN ORIGINAL EQUIPMENT ITEM ON THE AIRCRAFT, WHICH WAS MANUFACTURED IN 1948 AND HAS ACCRUED A TOTAL TIME IN SERVICE OF 1,407 HOURS. THE PILOT SAID HE HAD REMOVED AND INSPECTED THE WHEEL THE DAY BEFORE THE ACCIDENT AND THAT IT APPEARED NORMAL. POST ACCIDENT INSPECTION OF THE WHEEL PIECES BY THE PILOT REVEALED EVIDENCE OF A SMALL FAIRLY RECENT CRACK IN THE WHEEL CASTING NEAR THE AXLE. THE PILOT FURTHER SAID THE CRACK WAS IN THE INSIDE PART OF THE WHEEL AND UNDER THE TIRE WHERE IT COULDN'T HAVE BEEN OBSERVED UNLESS THE WHEEL HAD BEEN COMPLETELY DISASSEMBLED.
Flight
Event TypeAccident
Event Time11:00 PDT
Nearest AirportRohrer Field (0nm N)
Runway32
Runway Length3600 ft
Runway Width50 ft
Flight Plan FiledVFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftStinson 108-3
Tail NumberN592C
Aircraft CategoryAir
DamageSubstantial
OperatorTalmadge Westmoreland
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsFranklin · 6A4-165-B3 · Reciprocating · 165
Seats4
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 70 · Third Class
Conditions
ConditionsVMC
LightDaylight
WindCalm
Visibility30 sm
CeilingBroken clouds 4000 ft
Temperature / Dew Point63 F / 48
Altimeter30.00 inHg
Weather SourcePILO