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NTSB Report
March 1, 1992 · Thorpe T-18 · N48DD
Albuquerque, NM
Overview
Report Status
Probable Cause
Event Type
Accident
Date
March 1, 1992
Injury Outcomes
No injuries (1 uninjured)
Location
Albuquerque, NM
Aircraft
Thorpe T-18
Tail Number
N48DD
Operator
Gordon Hall
Injuries
None
Aircraft Damage
Substantial
NTSB Number
DEN92LA038
DURING LANDING ROLL, THE PILOT INADVERTENTLY ENTERED A GROUND LOOP. WHEN HE ATTEMPTED RUDDER INPUT TO CORRECT FOR THE GROUND LOOP, THE RUDDER CONTROL MIXING UNIT IN THE EMPENNAGE SHIFTED AND JAMMED THE RUDDER. CONTINUED PRESSURE ON THE RUDDER PEDALS BY THE PILOT FRACTURED THE LEFT RUDDER PEDAL AT THE CROSSOVER BAR. THE AIRCRAFT WING STRUCK THE GROUND DURING THE EVOLUTION CAUSING SUBSTANTIAL DAMAGE TO THE LEFT WING.
NTSB Probable Cause
A FAILURE OF THE RUDDER CONTROL SYSTEM WHEN THE PILOT ATTEMPTED TO CORRECT FOR AN INADVERTENT GROUND LOOP DURING LANDING ROLL.
Full Narrative
DURING LANDING ROLL, THE PILOT INADVERTENTLY ENTERED A GROUND LOOP. WHEN HE ATTEMPTED RUDDER INPUT TO CORRECT FOR THE GROUND LOOP, THE RUDDER CONTROL MIXING UNIT IN THE EMPENNAGE SHIFTED AND JAMMED THE RUDDER. CONTINUED PRESSURE ON THE RUDDER PEDALS BY THE PILOT FRACTURED THE LEFT RUDDER PEDAL AT THE CROSSOVER BAR. THE AIRCRAFT WING STRUCK THE GROUND DURING THE EVOLUTION CAUSING SUBSTANTIAL DAMAGE TO THE LEFT WING.
Flight
Event TypeAccident
Event Time13:00 MST
Nearest AirportAlbuquerque International (0nm)
Runway3
Runway Length9000 ft
Runway Width50 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftThorpe T-18
Tail NumberN48DD
Aircraft CategoryAir
DamageSubstantial
OperatorGordon Hall
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-360-A1FGP · Reciprocating · 180
Seats2
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 47 · Third Class
Conditions
ConditionsVMC
LightDaylight
Wind270° @ 3 kt
Visibility60 sm
CeilingOvercast 20000 ft
Temperature / Dew Point61 F / 19 C
Altimeter30.00 inHg
Weather SourceWIT