Carter Memorial Airport
Aircraft Accident/Incident Report

Luling, Texas 78648
Saturday, May 29, 2010 8:25 CDT

NTSB Narrative Summary Released at Completion of Accident

While attempting to take off, the airplane impacted a tree line and terrain. A postaccident engine examination revealed signs of inadequate maintenance, including finger-tight spark plugs, an obstructed air vent line, and evidence of water intrusion in the carburetor bowls. An engine test run determined that full power could not be achieved with the combination of installed engine components. The installed main jets produced a lean fuel condition that resulted in a loss of engine power before maximum rpm could be achieved. After replacing the components with stock components, the engine produced normal engine performance.

NTSB Probable Cause Narrative

Poor engine performance due to the modified engine parameters and installation of the fuel nozzles which produced a lean fuel condition resulting in decreased aircraft performance and subsequent impact with the trees.

Event Information

Type of Event Accident
Event Date 5/29/2010
Event Day of the Week Saturday
Time of Event 825
Event Time Zone Central Daylight Time
Event City Luling
Event State TEXAS
Event Country --
Zipcode of the event site 78648
Event Date Year 2010
Event Date Month 5
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 294342N
Event Location Longitude 0973933W
Event Location Airport Carter Memorial Airport
Event Location Nearest Airport ID KT91
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 1
Degrees magnetic from airport --
Airport Elevation 475
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 815 Central Daylight Time
Direction of event from weather observation facility (degrees) 306
Weather Observation Facility ID KHYI
Elevation of weather observation facility --
Distance of event from weather observation facility (units?) 14
Time Zone of the weather observation CDT
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling --
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 25
Dew Point at event time (in degress fahrenheit) 19
Wind Direction (degrees magnetic) --
Variable Wind Indicator --
Wind Speed (knots) --
Wind Velocity Indicator Calm
Wind Gust Indicator --
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.85
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report METAR KHYI 291315Z AUTO 00000KT 10SM CLR 25/19 A29
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) 28708
NTSB Notification Source FAA SW ROC
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Sep 15 2011 3:31PM
User who most recently changed record bakd
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N2574V
NTSB Number CEN10LA279
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 THUNDERBIRD AVIATION
Aircraft Model TOP DOG UL
Aircraft Series Identifier --
Aircraft Serial Number TXA01TDA
Certified Max Gross Weight --
Aircraft Category --
Aircraft Registration Class --
Aircraft is a homebuilt? No
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 Unknown
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours --
ELT Installed No
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name COMER KENTON R
Aircraft Owner Street Address PO BOX 281
Aircraft Owner City LULING
Aircraft Owner State TX
Aircraft Owner Country USA
Aircraft Owner Zipcode 78648-0281
Operator is an individual? No
Operator Name COMER KENTON R
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City LULING
Operator State TX
Operator Country USA
Operator Zip code 78648-0281
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) Personal
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code KT91
Departure City Luling
Departure State TX
Departure Country USA
Departure Time --
Departure Time Zone CDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code KT91
Destination City Luling
Destination State TX
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record May 4 2011 1:34PM
User who most recently changed record scoa
Since inspection or accident --
Event Location Runway Number and Location --
Runway Length --
Runway Width --
Sight Seeing flight --
Air Medical Flight --
Medical Flight --