Fredericksburg, TX, USA
N86TJ
CONRAD THEODORE J THORP T-18
According to the pilot, he reduced engine power to slow the airplane for landing while on the downwind leg of the traffic pattern. He then attempted to increase power and the engine did not respond. The pilot maneuvered the airplane immediately toward the runway and it floated during the landing. When the airplane touched down, there was insufficient distance remaining to stop on the runway. The airplane departed the end of the runway and the pilot intentionally ground-looped the airplane to stay on the airport property, causing substantial damage to both wings. A postaccident examination of the engine revealed that the clamp securing the throttle controller end was allowing the cable to slip freely.
While flying the downwind leg for a full-stop landing, the pilot reduced engine power to slow the airplane for landing. When the pilot advanced the throttle, the engine did not respond. The pilot turned the airplane immediately for the runway. Due to the "tighter" pattern and increased airspeed, the airplane floated during the landing. When the airplane touched down on the runway, there was insufficient distance remaining for the airplane to stop on the runway. The airplane departed the end of the runway and the pilot ground looped the airplane to stay on the airport property. Substantial damage was sustained to both wings. An examination of the engine revealed that the clamp securing the throttle controller end was allowing the cable to slip freely.
The malfunction of the throttle clamp, which resulted in the pilot's inability to control the engine's power setting.
Source: NTSB Aviation Accident Database
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