Probable cause
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.
NTSB analysis
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.
Text from the NTSB. Open the NTSB docket for CEN10LA279 for the full record.
Event
- Date
- May 29, 2010
- Type
- Accident
- Place
- Luling, Texas
- Nearest airport
- Carter Memorial Airport (KT91)
- Highest injury
- Serious
- Serious injuries
- 1
- Weather
- Visual (VMC)
- Light
- Day
Thunderbird Aviation TOP DOG UL
- N-number
- N2574V
- Category
- Weight-shift
- Damage
- Substantial
- Operating rule
- Part 91 (general aviation)
- Purpose of flight
- Personal
From the NTSB aviation accident database: N-registered aircraft, events since 2008, data through Oct 28, 2026. The file is published monthly, so the latest weeks are incomplete and recent records can change. The official source is the NTSB aviation investigation search. CheckAero is independent and not affiliated with the NTSB.