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NTSB Report
August 13, 1989 · Hawker Siddeley DH-125-3A · N66HA
Houston, TX
Overview
Report Status
Probable Cause
Event Type
Accident
Date
August 13, 1989
Injury Outcomes
No injuries (8 uninjured)
Location
Houston, TX
Aircraft
Hawker Siddeley DH-125-3A
Tail Number
N66HA
Operator
Skytravel
Injuries
None
Aircraft Damage
Substantial
NTSB Number
FTW89LA146
DURING LANDING, UPON NOSE WHEEL CONTACT WITH THE RUNWAY, DIRECTIONAL CONTROL WAS LOST AND THE AIRCRAFT EXITED THE RUNWAY HARD SURFACE AND CROSSED A DITCH COLLAPSING THE NOSE GEAR. THE CREW STATED THAT FULL LEFT RUDDER AND DIFFERENTIAL BRAKING WOULD NOT STOP THE RIGHT DRIFT, AND THAT THE AIRCRAFT WAS IN GRASS UNCONTROLLABLE BY THE TIME THE STEERING TILLER WAS REACHED. THE NOSE WHEEL STEERING SYSTEM WAS EXTENSIVELY DAMAGED BY THE IMPACT SEQUENCE WHEN THE NOSE WHEEL WELL AFT BULKHEAD WAS FORCED INTO THE STEERING ASSEMBLY. THE PILOT STATED THAT IF HE HAD BEEN 'SPRING LOADED TO THE TILLER' THAT HE COULD HAVE POSSIBLY KEPT THE AIRCRAFT OFF THE GRASS.
NTSB Probable Cause
FAILURE OF THE NOSE WHEEL STEERING SYSTEM FOR UNDETERMINED REASONS, AND THE PILOT-IN-COMMAND'S HESITATION REACHING FOR THE NOSE WHEEL STEERING TILLER. A CONTRIBUTING FACTOR WAS HIS LACK OF EXPERIENCE IN A DH-125.
Full Narrative
DURING LANDING, UPON NOSE WHEEL CONTACT WITH THE RUNWAY, DIRECTIONAL CONTROL WAS LOST AND THE AIRCRAFT EXITED THE RUNWAY HARD SURFACE AND CROSSED A DITCH COLLAPSING THE NOSE GEAR. THE CREW STATED THAT FULL LEFT RUDDER AND DIFFERENTIAL BRAKING WOULD NOT STOP THE RIGHT DRIFT, AND THAT THE AIRCRAFT WAS IN GRASS UNCONTROLLABLE BY THE TIME THE STEERING TILLER WAS REACHED. THE NOSE WHEEL STEERING SYSTEM WAS EXTENSIVELY DAMAGED BY THE IMPACT SEQUENCE WHEN THE NOSE WHEEL WELL AFT BULKHEAD WAS FORCED INTO THE STEERING ASSEMBLY. THE PILOT STATED THAT IF HE HAD BEEN 'SPRING LOADED TO THE TILLER' THAT HE COULD HAVE POSSIBLY KEPT THE AIRCRAFT OFF THE GRASS.
Flight
Event TypeAccident
Event Time17:50 CDT
Nearest AirportWilliam P. Hobby (0nm N)
Runway12R
Runway Length7601 ft
Runway Width150 ft
Flight Plan FiledIFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftHawker Siddeley DH-125-3A
Tail NumberN66HA
Aircraft CategoryAir
DamageSubstantial
OperatorSkytravel
Operating RulePart 91
Engines2
Engine TypeTurbojet
Engine DetailsRolls-Royce · VIPER 522 · Turbojet · 3360
Seats10
People & Injuries
Injury SummaryNo injuries (8 uninjured)
Fatal0
Serious0
Minor0
Uninjured8
Total8
Crew 1Age 36 · First Class
Conditions
ConditionsVMC
LightDaylight
Wind100° @ 8 kt
Visibility12 sm
CeilingNone
Temperature / Dew Point57
Altimeter29.00 inHg
Observation Time22:50
Weather SourceWFAC