NTSB Identification: CEN14LA120
14 CFR Part 91: General Aviation
Accident occurred Thursday, January 23, 2014 in Ashland, MO
Probable Cause Approval Date: 09/24/2014
Aircraft: CESSNA 414A, registration: N414CJ
Injuries: 3 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 reported that, during the descent to the destination airport, the airplane’s left engine experienced a partial loss of power and that he attempted to troubleshoot the issue. Unable to restore the engine power, he secured the left engine, feathered the propeller, and advised air traffic control of the situation. Shortly after, the right engine experienced a partial loss of power and eventually only produced idle power. Unable to reach the destination airport, the pilot conducted a forced landing to a field. A postaccident examination of the airplane revealed ice buildup in the fuel manifold valves, the fuel strainer bowls, and the fuel strainer screens. The left fuel strainer bowl contained a 1 3/8-inch thick piece of ice. Fuel samples from both of the airplane’s fuel tanks and from the fuel supplier at the airport used to the fuel the airplane earlier in the day were tested, and no water contamination was found; the source of the water contamination could not be determined. It is likely that the loss of engine power resulted from water contamination and subsequent ice buildup in the fuel system.
The National Transportation Safety Board determines the probable cause(s) of this accident to be: The in-flight failure of both engines due to water contamination. Full narrative available
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