NTSB Identification: CHI00LA105.
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Accident occurred Sunday, April 02, 2000 in MAPLE PLAIN, MN
Probable Cause Approval Date: 05/17/2001
Aircraft: Weinzierl TITAN TORNADO II, registration: N196KW
Injuries: 2 Minor.
NTSB investigators may have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.
The airplane sustained substantial damage on contact with terrain during a forced landing after a loss of engine power on takeoff. The pilot and passenger sustained minor injuries. The pilot stated, 'I was departing to the east. I climed to about 200 ft. when the engine stoped I turned back for a field. I hit the field and the plane overturned.' The field was rough and uneven. The airplane sustained substantial damage to the hull, wing tips, and tail. The engines fuel filter was found clogged with silicone used as a fuel tank sealant. The plugged filter was a sintered bronze filter. The Rotax installation manual states, 'A suitable fuel filter of 0.15 mm mesh size must be fitted between pump and carburetor. Do not use paper filters. The fuel tank must have a drain cock for condensed water. A screen of 0.3 mm mesh size should be fitted to the fuel line in the tank.' The pilot's safety recommendation was, 'Don't use silicone to seal any type of fuel tanks or exc.'
The National Transportation Safety Board determines the probable cause(s) of this accident to be: the obstructed fuel system filter, the inadequate silicone material the builder used, and the rough and uneven terrain. A factor was that suitable landing terrain was not available. Full narrative available
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