NTSB Identification: CHI06CA237.
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Accident occurred Friday, August 04, 2006 in Plattsmouth, NE
Probable Cause Approval Date: 11/29/2006
Aircraft: Spittler Rans S-16, registration: N116GS
Injuries: 2 Uninjured.
NTSB investigators used data provided by various entities, including, but not limited to, the Federal Aviation Administration and/or the operator and did not travel in support of this investigation to prepare this aircraft accident report.
The airplane collided with rough terrain during a forced landing following a loss of engine power. The pilot reported that they were practicing touch and go landings when the engine power decreased by 100 to 150 rpm during takeoff. The pilot confirmed the boost pump position, the mixture setting, and the fuel quantity. He reported that at an altitude of about 500 feet above the ground the engine power decreased smoothly to zero. The pilot reported there were crop fields on both sides of his path with a slew in the middle so he elected to land straight ahead in the slew. The airplane touched down in the four-foot-tall grass at which time the nose and right main landing gears collapsed resulting in structural damage to the airplane. The fuel servo was removed from the airplane and bench tested. The test revealed the servo had a tendency to stick when transitioning between high and low pressure settings.
The National Transportation Safety Board determines the probable cause(s) of this accident to be: A loss of engine power due to fuel starvation which resulted from a binding within the fuel servo. A factor associated with the accident was the high vegetation that was encountered during the forced landing. Full narrative available
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