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NTSB Report
November 18, 1989 · Schweizer G-164B · N6977K
Knights Landing, CA
Overview
Report Status
Probable Cause
Event Type
Accident
Date
November 18, 1989
Injury Outcomes
No injuries (1 uninjured)
Location
Knights Landing, CA
Aircraft
Schweizer G-164B
Tail Number
N6977K
Injuries
None
Aircraft Damage
Substantial
NTSB Number
LAX90DVG02
A RESTRICTED CATEGORY AIRCRAFT EXPERIENCED A COLLAPSE OF THE MAIN LANDING GEAR DURING THE LANDING ROLL. EXAMINATION OF ONE OF TWO AN9-92A BOLTS REVEALED IT HAD A SHEARED HEAD. THESE BOLTS ATTACH THE RIGHT MAIN LANDING GEAR SPRING LEG.
NTSB Probable Cause
THE FAILURE OF THE RIGHT MAIN LANDING GEAR DUE TO A SHEARED BOLT THAT ATTACHED THE SPRING LEG TO THE GEAR.
Full Narrative
A RESTRICTED CATEGORY AIRCRAFT EXPERIENCED A COLLAPSE OF THE MAIN LANDING GEAR DURING THE LANDING ROLL. EXAMINATION OF ONE OF TWO AN9-92A BOLTS REVEALED IT HAD A SHEARED HEAD. THESE BOLTS ATTACH THE RIGHT MAIN LANDING GEAR SPRING LEG.
Flight
Event TypeAccident
Event Time09:00 PST
Nearest Airport0nm N
Runway0
Runway Length3800 ft
Runway Width50 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftSchweizer G-164B
Tail NumberN6977K
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 137
Engines1
Engine TypeReciprocating
Engine DetailsP&W · R-1340-AN1 · Reciprocating · 600
Seats1
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 53 · Second Class
Conditions
ConditionsVMC
LightDaylight
WindCalm
Visibility4 sm
CeilingNone
Temperature / Dew Point61 F / 48
Altimeter29.00 inHg
Weather SourcePILO