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NTSB Report
August 27, 1989 · Bradley S-1D · N787PA
Mt Pleasant, MI
Overview
Report Status
Probable Cause
Event Type
Accident
Date
August 27, 1989
Injury Outcomes
1 injury (1 minor injury)
Location
Mt Pleasant, MI
Aircraft
Bradley S-1D
Tail Number
N787PA
Operator
Thimothy W Slavens
Injuries
Minor
Aircraft Damage
Substantial
NTSB Number
CHI89DEM07
A SEVERE TAIL WHEEL SHIMMY WAS EXPERIENCED DURING THE LANDING ROLL. DIRECTIONAL CONTROL WAS LOST AND THE AIRPLANE TRAVELED OFF THE SIDE OF THE RUNWAY WHERE IT CONTACTED A DITCH. DURING THE INVESTIGATION, THE LEFT SIDE TAIL WHEEL SPRING WAS FOUND ON THE RUNWAY. THE RIGHT SIDE SPRING REMAINED ATTACHED TO THE RUDDER, BUT WAS DISCONNECTED AT THE TAIL WHEEL STEERING HORN.
NTSB Probable Cause
THE TAIL WHEEL SPRING BECOMING DISCONNECTED RESULTING IN THE PILOT'S INABILITY TO MAINTAIN DIRECTIONAL CONTROL OF THE AIRPLANE.
Full Narrative
A SEVERE TAIL WHEEL SHIMMY WAS EXPERIENCED DURING THE LANDING ROLL. DIRECTIONAL CONTROL WAS LOST AND THE AIRPLANE TRAVELED OFF THE SIDE OF THE RUNWAY WHERE IT CONTACTED A DITCH. DURING THE INVESTIGATION, THE LEFT SIDE TAIL WHEEL SPRING WAS FOUND ON THE RUNWAY. THE RIGHT SIDE SPRING REMAINED ATTACHED TO THE RUDDER, BUT WAS DISCONNECTED AT THE TAIL WHEEL STEERING HORN.
Flight
Event TypeAccident
Event Time18:45 EDT
Nearest AirportMt Pleasant Muni (0nm N)
Runway27
Runway Length5000 ft
Runway Width100 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBradley S-1D
Tail NumberN787PA
Aircraft CategoryAir
DamageSubstantial
OperatorThimothy W Slavens
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · IO-320-E2A · Reciprocating · 150
Seats1
People & Injuries
Injury Summary1 injury (1 minor injury)
Fatal0
Serious0
Minor1
Uninjured0
Total1
Crew 1Age 27 · Third Class
Conditions
ConditionsVMC
LightDaylight
Wind280° @ 7 kt
Visibility15 sm
CeilingNone
Temperature / Dew Point66 F
Altimeter30.00 inHg
Observation Time22:51
Weather SourceWFAC