Aircraft Accident/Incident Report

Willow Springs, Missouri 65793
Monday, July 30, 2007 19:30 CDT

NTSB Narrative Summary Released at Completion of Accident

The airplane was destroyed when it impacted trees and terrain following a loss of control during flight. The pilot reported that he had performed a pre-flight examination of the airplane and no discrepancies were found. He said that after takeoff, he noticed that the airplane was flying left wing heavy. He said that he climbed to pattern altitude where he attempted a turn to the right. The right turn required more aileron input than was normal and the pilot decided to return to the airport. He said that he then made a left turn which became steep and he attempted to level the wings using right aileron at which time he felt something "let go." He was no longer able to control the airplane and it subsequently impacted trees and terrain. Examination of the airplane after the accident revealed that the left aileron push-pull control rod was separated into two pieces. Examination of the separated end fitting had portions of two rivets at 90 degrees to each other within the shank portion that inserts into the aluminum tube. The rivet shanks appeared to be machined or filed flush with the outside diameter of the insert. The aluminum pushrod tube had no evidence of drilled holes corresponding to the end fittings rivet locations, and no manufactured or shop formed rivet heads were present. No evidence could be found to indicate that the retaining rivets had been installed in the aluminum tube.

NTSB Probable Cause Narrative

The improper installation of the aileron control pushrod which led to a separation of the pushrod and subsequent loss of aircraft control. A factor was the pilot not being able to control the airplane after the pushrod separation.

Event Information

Type of Event Accident
Event Date 7/30/2007
Event Day of the Week Monday
Time of Event 1930
Event Time Zone Central Daylight Time
Event City Willow Springs
Event State MISSOURI
Event Country --
Zipcode of the event site 65793
Event Date Year 2007
Event Date Month 7
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 365923N
Event Location Longitude 0915715W
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 Serious
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None --
Injury Total Serious 1
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 22218
NTSB Notification Source FAA
NTSB Notification Date Jul 31 2007 12:00AM
NTSB Notification Time --
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Oct 31 2007 7:09AM
User who most recently changed record NTSB\johb
Basic weather conditions Visual Meteorological Cond
FAA District Office Saint Louis, Missouri FSDO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N232AN
NTSB Number CHI07CA229
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Netz
Aircraft Model KIS TR2
Aircraft Series Identifier --
Aircraft Serial Number 115
Certified Max Gross Weight --
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? Yes
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 2
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Conditional
Date of Last Inspection Oct 1 2006 12:00AM
Airframe hours since last inspection --
Airframe Hours 410
ELT Installed Yes
ELT Activated --
ELT Aided Location of Event Site --
ELT Type --
Aircraft Owner Name Robert L. Bohemier
Aircraft Owner Street Address --
Aircraft Owner City Willow Springs
Aircraft Owner State MO
Aircraft Owner Country USA
Aircraft Owner Zipcode --
Operator is an individual? Yes
Operator Name --
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City --
Operator State --
Operator Country --
Operator Zip code --
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 1H5
Departure City Willow Springs
Departure State MO
Departure Country USA
Departure Time 1915
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 Cruise
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Sep 11 2007 2:02PM
User who most recently changed record DINC
Since inspection or accident Time of Accident
Event Location Runway Number and Location --
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --