NTSB Identification: MIA05LA103.
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Accident occurred Thursday, May 12, 2005 in St. Augustine, FL
Probable Cause Approval Date: 08/29/2006
Aircraft: American General Aircraft AG-5B, registration: N1193G
Injuries: 1 Uninjured.
NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.
The pilot stated that the preflight, takeoff, and flight en route to the St. Augustine Airport were normal. He contacted the tower when the flight was about 10 miles west and was advised to fly left base for runway 31. The tower cleared him to land when the controller had a visual with the aircraft, and he turned base at about 1,200 feet. He slowed the airplane and lowered flaps, and while on final approach he applied power to adjust the sink rate but the throttle "... was just loose in my hand (like it completely disconnected from the carburetor)." Unable to increase power, he advised the tower of the situation, and after recognizing that he was unable to land on the runway, ditched the aircraft in a marsh short of the runway. The airplane flipped inverted during touchdown and he exited and signaled to rescue personnel that he was okay. According to the FAA airworthiness inspector who examined the airplane, the carburetor linkage separated from the carburetor at the ball assembly. Examination of the ball assembly revealed no signs of excessive wear. No determination was made as to the reason for the separation.
The National Transportation Safety Board determines the probable cause(s) of this accident to be: The separation of the throttle control for undetermined reasons, and the unsuitable terrain encountered by the pilot during the forced landing, resulting in a nose-over after touchdown. Full narrative available
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