NTSB Identification: WPR12LA277
14 CFR Part 91: General Aviation
Accident occurred Wednesday, June 27, 2012 in Vancouver, WA
Probable Cause Approval Date: 02/03/2014
Aircraft: REHN KITFOX IV, registration: N645GR
Injuries: 1 Fatal,1 Serious.
NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.
Shortly after the airplane took off, a witness heard sounds indicative of an engine problem. The airplane started to make a controlled turn back to the runway; however, it subsequently experienced an aerodynamic stall and crashed at a 45-degree nose-down attitude. The airplane's annual inspection had been completed the week before the accident and the accident flight appeared to be the first flight after the inspection. Postaccident examination of the engine revealed an orange rubber-like debris in the right-hand carburetor bowl. The debris was similar to the RTV fire sleeve material used to insulate the fuel lines that resided in the airplane's engine compartment. How the orange rubber/RTV material came to reside in the carburetor bowl could not be determined; however, foreign material in the carburetor bowl could block a carburetor main jet, resulting in a partial to complete loss of engine power.
The National Transportation Safety Board determines the probable cause(s) of this accident to be: The pilot's failure to maintain airspeed during an attempt to return to the runway immediately after takeoff, which resulted in an aerodynamic stall. Contributing to the accident was foreign debris in the right-hand carburetor bowl, which precipitated a loss of engine power. Full narrative available
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