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NTSB Report
March 4, 1989 · Cessna 180J · N601RF
W. Columbia, SC
Overview
Report Status
Probable Cause
Event Type
Accident
Date
March 4, 1989
Injury Outcomes
No injuries (4 uninjured)
Location
W. Columbia, SC
Aircraft
Cessna 180J
Tail Number
N601RF
Operator
Fox Reese E
Injuries
None
Aircraft Damage
Substantial
NTSB Number
ATL89LA097
THE RT MAIN LANDING GEAR COLLAPSED AND SEPARATED FROM THE AIRPLANE DURING LDG ROLLOUT. EXAMINATION REVEALED THAT THE AN7-20A ATTACHMENT BOLT & MS20365-720C NUT HAD STRIPPED & SEPARATED. THE BOLT EXHIBITED EVIDENCE OF HAVING BEEN LOOSE PRIOR TO THE FAILURE. EXAMINATION OF THE AIRPLANE LOGS REVEALED NO ENTRIES PERTAINING TO RT MLG MAINTENANCE, OR ANY AIRFRAME REPAIRS, WHICH WOULD HAVE REQUIRED REMOVAL & REINSTALLATION OF THE GEAR.
NTSB Probable Cause
IMPROPER TORQUING OF THE ATTACHMENT BOLT DURING INSTALLATION BY UNKNOWN PERSON(S), WHICH RESULTED IN THE SEPARATION OF THE BOLT AND NUT AND SUBSEQUENT SEPARATION OF THE MAIN LANDING GEAR FROM THE AIRPLANE.
Full Narrative
THE RT MAIN LANDING GEAR COLLAPSED AND SEPARATED FROM THE AIRPLANE DURING LDG ROLLOUT. EXAMINATION REVEALED THAT THE AN7-20A ATTACHMENT BOLT & MS20365-720C NUT HAD STRIPPED & SEPARATED. THE BOLT EXHIBITED EVIDENCE OF HAVING BEEN LOOSE PRIOR TO THE FAILURE. EXAMINATION OF THE AIRPLANE LOGS REVEALED NO ENTRIES PERTAINING TO RT MLG MAINTENANCE, OR ANY AIRFRAME REPAIRS, WHICH WOULD HAVE REQUIRED REMOVAL & REINSTALLATION OF THE GEAR.
Flight
Event TypeAccident
Event Time12:54 EST
Nearest AirportColumbia Metropolitan (0nm N)
Runway0
Runway Length4999 ft
Runway Width150 ft
Flight Plan FiledIFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna 180J
Tail NumberN601RF
Aircraft CategoryAir
DamageSubstantial
OperatorFox Reese E
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · O-470-S · Reciprocating · 230
Seats4
People & Injuries
Injury SummaryNo injuries (4 uninjured)
Fatal0
Serious0
Minor0
Uninjured4
Total4
Crew 1Age 50 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind20° @ 8 kt
Visibility4 sm
CeilingOvercast 1000 ft
Temperature / Dew Point52 / 46
Altimeter30.00 inHg
Observation Time17:50
Weather SourceWFAC