Elkhart Municipal Airport
Aircraft Accident/Incident Report

Elkhart, Indiana 46514
Wednesday, September 8, 2010 19:58 EDT

NTSB Narrative Summary Released at Completion of Accident

The accident occurred during the amateur-built airplane's first flight. According to the pilot, the purpose of the flight was to determine the stall speed and handling characteristics of the airplane during the flight. After departure, the pilot circled the airport at an altitude of about 3,000 feet, and then requested a return for landing with air traffic control. A video of the accident showed the airplane in a steep descent toward a grassy area between the runway and taxiway. As the airplane neared the ground, the nose of the airplane oscillated pitching up, down, and up again prior to the nose dropping and the airplane impacting the ground. A witness reported the engine sounded normal during the flight and while the airplane was on final approach. A postaccident examination of the airframe did not reveal any failure or malfunction that would have resulted in the loss of control.

NTSB Probable Cause Narrative

The pilot's failure to maintain control of the airplane during the landing approach.

Event Information

Type of Event Accident
Event Date 9/8/2010
Event Day of the Week Wednesday
Time of Event 1958
Event Time Zone Eastern Daylight Time
Event City Elkhart
Event State INDIANA
Event Country --
Zipcode of the event site 46514
Event Date Year 2010
Event Date Month 9
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 414228N
Event Location Longitude 0855959W
Event Location Airport Elkhart Municipal Airport
Event Location Nearest Airport ID EKM
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0
Degrees magnetic from airport --
Airport Elevation 778
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1855 Eastern Daylight Time
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID EKM
Elevation of weather observation facility 778
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation EDT
Lighting Conditions Dusk
Lowest Ceiling Height --
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 17
Dew Point at event time (in degress fahrenheit) 8
Wind Direction (degrees magnetic) 360
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 7
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.1
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Fatal
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal 1
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 28490
NTSB Notification Source FAA-AGL-ROC
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Jun 8 2011 12:14PM
User who most recently changed record bowl
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N408K
NTSB Number CEN10LA526
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 None
Aircraft Manufacturer's Full Name Thompson
Aircraft Model Kolb Twinstar Mark
Aircraft Series Identifier --
Aircraft Serial Number M3X6-4-00083
Certified Max Gross Weight 1000
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 --
Date of Last Inspection Jul 24 2010 12:00AM
Airframe hours since last inspection --
Airframe Hours 0
ELT Installed No
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name Donald S. Thompson
Aircraft Owner Street Address --
Aircraft Owner City Mishawaka
Aircraft Owner State IN
Aircraft Owner Country USA
Aircraft Owner Zipcode 46544
Operator is an individual? No
Operator Name Donald S. Thompson
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City Mishawaka
Operator State IN
Operator Country USA
Operator Zip code 46544
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? No
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) Flight Test
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code EKM
Departure City Elkhart
Departure State IN
Departure Country USA
Departure Time 1938
Departure Time Zone EDT
Destination Same as Local Flt crash at destination city
Destination Airport Code EKM
Destination City Elkhart
Destination State IN
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jun 30 2011 4:31PM
User who most recently changed record andj
Since inspection or accident --
Event Location Runway Number and Location 36
Runway Length 4001
Runway Width 75
Sight Seeing flight No
Air Medical Flight No
Medical Flight --