Aircraft Accident/Incident Report

Liberal, Kansas 67905
Tuesady, August 17, 2004 20:30 CDT

NTSB Narrative Summary Released at Completion of Accident

The amateur-built experimental airplane sustained substantial damage when it nosed over after it veered off the left side of the runway. The pilot reported that he returned to land after 20 minutes of flight and that the airplane operated normally during the flight, including the touchdown. He reported that when the rudder lost its effectiveness during landing rollout, the airplane started to drift to the left. He applied right brake but without effect. He reported the airplane exited the left side of the runway and the nose gear "dug in" and the airplane nosed over about 2,000 feet from the touchdown point. An inspection of the airplane revealed that the left and right brakes operated. The nose gear fork was found broken with numerous fracture surfaces. All the fracture surfaces were consistent with overstress fractures. The nose wheel tire exhibited scuffing on the right half of the tire around its entire circumference. Grass was found embedded in between the tire and wheel rim on the right side of the tire. The left side of the tire had no scuff marks. The inspection of the nose wheel steering linkage indicated the nose wheel linkage was positioned in the full left direction. The inspection of the accident site revealed three tires skid marks approximately 1,600 feet in length extended from the airplane wreckage back to the touchdown zone on the runway. The tire marks veered to the left after touchdown. The airplane was equipped with an electric/hydraulic nose wheel steering system. The pilot reported that the nose wheel steering system was off during the landing. The airplane was equipped with the airplane's originally designed nose landing gear. The airplane was also equipped with the airplane's originally designed nose gear steering system's hydraulic actuator/shimmy dampner and steering linkage.

NTSB Probable Cause Narrative

The loss of directional control during landing for undetermined reasons.

Event Information

Type of Event Accident
Event Date 8/17/2004
Event Day of the Week Tuesday
Time of Event 2030
Event Time Zone Central Daylight Time
Event City Liberal
Event State KANSAS
Event Country --
Zipcode of the event site 67905
Event Date Year 2004
Event Date Month 8
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 370239N
Event Location Longitude 1005735W
Event Location Airport --
Event Location Nearest Airport ID --
Indicates whether the acc/inc occurred off or on an airport --
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness --
Investigator's weather source Unknown
Time of the weather observation
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID --
Elevation of weather observation facility --
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation --
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions --
Sky Condition for Lowest Ceiling --
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) --
Air Temperature at event time (in degrees celsius) --
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) --
Variable Wind Indicator --
Wind Speed (knots) --
Wind Velocity Indicator --
Wind Gust Indicator Unknown
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 16483
NTSB Notification Source FAA
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Oct 28 2004 10:11AM
User who most recently changed record NTSB\MONR
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N39SB
NTSB Number CHI04CA230
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Substantial
Aircraft Fire None
Aircraft Explosion --
Aircraft Manufacturer's Full Name Bowles
Aircraft Model Questair Venture
Aircraft Series Identifier --
Aircraft Serial Number 66
Certified Max Gross Weight 2000
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? Yes
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft --
Number of Engines 1
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection --
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours --
ELT Installed Unknown
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name Sierra Bravo Partnership
Aircraft Owner Street Address --
Aircraft Owner City --
Aircraft Owner State --
Aircraft Owner Country --
Aircraft Owner Zipcode --
Operator is an individual? No
Operator Name Sierra Bravo Partnership
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address PlO. Box 945
Operator City Liberal
Operator State KS
Operator Country USA
Operator Zip code 67905
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? --
Certified for Part 133 or 137 Operation --
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Personal
Second Pilot on Board --
Departure Point Same as Event Yes
Departure Airport Code LBL
Departure City Liberal
Departure State KS
Departure Country USA
Departure Time 2040
Departure Time Zone CDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code --
Destination City --
Destination State --
Destination Country --
Specific Phase of Flight Landing
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record Sep 10 2004 5:06PM
User who most recently changed record DINC
Since inspection or accident --
Event Location Runway Number and Location --
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --