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NTSB Report
September 14, 1990 · Grumman G-164A · N7905
Americus, GA
Overview
Report Status
Probable Cause
Event Type
Accident
Date
September 14, 1990
Injury Outcomes
No injuries (1 uninjured)
Location
Americus, GA
Aircraft
Grumman G-164A
Tail Number
N7905
Operator
Eugene Frazier
Injuries
None
Aircraft Damage
Destroyed
NTSB Number
ATL90LA171
THE LEFT MAIN LANDING GEAR SPRING ASSEMBLY FAILED AT TOUCHDOWN. EXAMINATION OF THE FAILED COMPONENT DISCLOSED A LOW CYCLE FATIGUE FAILURE MODE WITH NO CLEAR POINT OF ORIGIN. IN 1974, SCHWEIZER AIRCRAFT CORP ISSUED A SERVICE NOTE WHICH DEFINED THE FAILURE CONDITIONS, AND THE INSPECTION PROCEDURES. THE FRACTURE ANALYSIS IDENTIFIED CLASSICAL FAILURE PROPERTIES OUTLINED IN THE SERVICE NOTE. THE PILOT RECORDED APPROXIMATELY 200 LANDINGS SINCE THE LAST ANNUAL INSPECTION.
NTSB Probable Cause
A LOW CYCLE FATIGUE FAILURE OF THE LEFT MAIN LANDING GEAR SPRING.
Full Narrative
THE LEFT MAIN LANDING GEAR SPRING ASSEMBLY FAILED AT TOUCHDOWN. EXAMINATION OF THE FAILED COMPONENT DISCLOSED A LOW CYCLE FATIGUE FAILURE MODE WITH NO CLEAR POINT OF ORIGIN. IN 1974, SCHWEIZER AIRCRAFT CORP ISSUED A SERVICE NOTE WHICH DEFINED THE FAILURE CONDITIONS, AND THE INSPECTION PROCEDURES. THE FRACTURE ANALYSIS IDENTIFIED CLASSICAL FAILURE PROPERTIES OUTLINED IN THE SERVICE NOTE. THE PILOT RECORDED APPROXIMATELY 200 LANDINGS SINCE THE LAST ANNUAL INSPECTION.
Flight
Event TypeAccident
Event Time16:30 EDT
Nearest AirportFraizer Airstrip (0nm N)
Runway6
Runway Length3000 ft
Runway Width75 ft
Flight Plan FiledNone
Aircraft FireGrd
Aircraft ExplosionGrd
Aircraft
AircraftGrumman G-164A
Tail NumberN7905
Aircraft CategoryAir
DamageDestroyed
OperatorEugene Frazier
Operating RulePart 137
Engines1
Engine TypeReciprocating
Engine DetailsP&W · R-985 · Reciprocating · 450
Seats1
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 40 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind240° @ 5 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point0 C / 0 C
Altimeter0
Observation Time20:30
Weather SourceWFAC