Lincoln County Airport
Aircraft Accident/Incident Report

Tea, South Dakota 57064
Friday, July 23, 2010 20:20 CDT

NTSB Narrative Summary Released at Completion of Accident

A witness reported that the pilot was flying a maintenance test flight because the airplane engine’s carburetor was replaced with a fuel injection system and a new air filter system was installed. The engine appeared to be developing full power during the takeoff roll. When the airplane was about 500 feet above ground level (agl), it made a left crosswind turn. The witness reported seeing a brief puff of black smoke coming from the engine exhaust. The airplane then entered a descending left turn before encountering a full stall about 100 to 150 feet agl. The airplane impacted a cornfield near the airport in about a 60- to 70-degree nose-down, inverted attitude. Postaccident inspection of the airframe revealed no preimpact anomalies. The inspection of the engine and fuel injection system revealed no preimpact anomalies; however, the mechanical fuel pump and both magnetos were broken by impact forces and could not be tested. No other anomalies were found with the airplane.

NTSB Probable Cause Narrative

A loss of engine power for undetermined reasons and the pilot's loss of airplane control, which led to an aerodynamic stall.

Event Information

Type of Event Accident
Event Date 7/23/2010
Event Day of the Week Friday
Time of Event 2020
Event Time Zone Central Daylight Time
Event City Tea
Event State SOUTH DAKOTA
Event Country --
Zipcode of the event site 57064
Event Date Year 2010
Event Date Month 7
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 432726N
Event Location Longitude 0964807W
Event Location Airport Lincoln County Airport
Event Location Nearest Airport ID Y14
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1956 Central Daylight Time
Direction of event from weather observation facility (degrees) 360
Weather Observation Facility ID FSD
Elevation of weather observation facility 1429
Distance of event from weather observation facility (units?) 8
Time Zone of the weather observation CDT
Lighting Conditions Day
Lowest Ceiling Height 3800
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions --
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 28
Dew Point at event time (in degress fahrenheit) 23
Wind Direction (degrees magnetic) 150
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 8
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.76
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) 28099
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 Mar 16 2011 1:00PM
User who most recently changed record bowl
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N216TB
NTSB Number CEN10LA429
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name WARTH DENNIS J
Aircraft Model Classic Sport S-18
Aircraft Series Identifier --
Aircraft Serial Number 245
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 Feb 22 2010 12:00AM
Airframe hours since last inspection --
Airframe Hours 123
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type Unknown
Aircraft Owner Name BALOUN AVIATION LLC
Aircraft Owner Street Address 2209 S HOFSTAD AVE
Aircraft Owner City SIOUX FALLS
Aircraft Owner State SD
Aircraft Owner Country USA
Aircraft Owner Zipcode 57106-4781
Operator is an individual? No
Operator Name BALOUN AVIATION LLC
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address 2209 S HOFSTAD AVE
Operator City SIOUX FALLS
Operator State SD
Operator Country USA
Operator Zip code 57106-4781
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 Y14
Departure City Tea
Departure State SD
Departure Country USA
Departure Time 2010
Departure Time Zone CDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code Y14
Destination City Tea
Destination State SD
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Mar 14 2011 5:54PM
User who most recently changed record silj
Since inspection or accident Last Inspection
Event Location Runway Number and Location 16
Runway Length 3650
Runway Width 60
Sight Seeing flight No
Air Medical Flight No
Medical Flight --