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February 11, 1983 · Swearingen SA-26T · N111PT
Houston, TX
Overview
Report Status
Preliminary report
Event Type
Accident
Date
February 11, 1983
Injury Outcomes
No injuries (1 uninjured)
Location
Houston, TX
Aircraft
Swearingen SA-26T
Tail Number
N111PT
Injuries
None
Aircraft Damage
Substantial
NTSB Number
FTW83LA109
THE PLT REPORTED THAT AFTER THE NOSEWHEEL TOUCHED DOWN, IT BEGAN A VIOLENT & UNCONTROLLABLE OSCILLATION, THEN LOCKED APRX 25 DEG TO THE LEFT. THE ACFT VEERED OFF THE LEFT SIDE OF THE RUNWAY, CROSSED AN AREA OF SOFT GROUND AND ANGLED ACROSS A TAXIWAY. AFTER CROSSING THE TAXIWAY, IT ENTERED ANOTHER AREA OF SOFT DIRT WHERE THE NOSE GEAR SEPARATED. AFTER COMING TO REST, THE PROPELLERS DUG HOLES IN THE SOFT GROUND BEFORE THE ENGINES WERE SHUT DOWN. AN INVESTIGATION REVEALED THE TIRES LEFT BLACK SCRUB MARKS (800 FT LONG) BEFORE THE ACFT DEPARTED THE RUNWAY. LOW AIR PRESSURE WAS FOUND IN THE NOSE GEAR STRUT AND SHIMMY DAMPER. ACCORDING TO A REPRESENTATIVE FROM THE MANUFACTURER, THIS LOW PRESSURE COULD CAUSE THE NOSE GEAR TO SHIMMY. PROPELLER STRIKE MARKS IN THE FIRST AREA OF SOFT GROUND INDICATED THE GROUND SPEED WAS 82 KTS WHERE THEY FIRST CONTACTED THE GROUND.
Full Narrative
THE PLT REPORTED THAT AFTER THE NOSEWHEEL TOUCHED DOWN, IT BEGAN A VIOLENT & UNCONTROLLABLE OSCILLATION, THEN LOCKED APRX 25 DEG TO THE LEFT. THE ACFT VEERED OFF THE LEFT SIDE OF THE RUNWAY, CROSSED AN AREA OF SOFT GROUND AND ANGLED ACROSS A TAXIWAY. AFTER CROSSING THE TAXIWAY, IT ENTERED ANOTHER AREA OF SOFT DIRT WHERE THE NOSE GEAR SEPARATED. AFTER COMING TO REST, THE PROPELLERS DUG HOLES IN THE SOFT GROUND BEFORE THE ENGINES WERE SHUT DOWN. AN INVESTIGATION REVEALED THE TIRES LEFT BLACK SCRUB MARKS (800 FT LONG) BEFORE THE ACFT DEPARTED THE RUNWAY. LOW AIR PRESSURE WAS FOUND IN THE NOSE GEAR STRUT AND SHIMMY DAMPER. ACCORDING TO A REPRESENTATIVE FROM THE MANUFACTURER, THIS LOW PRESSURE COULD CAUSE THE NOSE GEAR TO SHIMMY. PROPELLER STRIKE MARKS IN THE FIRST AREA OF SOFT GROUND INDICATED THE GROUND SPEED WAS 82 KTS WHERE THEY FIRST CONTACTED THE GROUND.
Flight
Event TypeAccident
Event Time12:36 CST
Nearest AirportHOBBY (0nm N)
Runway13L
Runway Length7600 ft
Runway Width150 ft
Flight Plan FiledIFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftSwearingen SA-26T
Tail NumberN111PT
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines2
Engine TypeTurboprop
Engine DetailsP&W · PT6A-20 · Turboprop
Seats8
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 49 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind70° @ 5 kt
Visibility7 sm
CeilingOvercast 2500 ft
Temperature / Dew Point57 / 46
Altimeter30.00 inHg
Observation Time18:36
Weather SourceWFAC