EL DORADO, OK, USA
N3655G
Air Tractor AT301
THE PILOT STATED THAT DURING TAKEOFF FROM A COUNTY ROAD, BLACK SMOKE STARTED COMING OUT OF THE ENGINE EXHAUST. THE AIRCRAFT THEN COLLIDED WITH A TREE AND A POST CAUSING SUBSTANTIAL DAMAGE. IT WAS FOUND THAT THE CARBURETOR HEAT SYSTEM HAD BEEN MODIFIED AND THE CARBURETOR FLAPPER VALVE WAS STUCK IN THE CLOSED POSITION.
Source: NTSB Aviation Accident Database
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