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ASN Wikibase Occurrence # 21680
Last updated: 13 December 2020
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Type:Silhouette image of generic C150 model; specific model in this crash may look slightly different
Cessna 150F
Owner/operator:Jamie Whealon
Registration: N8647G
C/n / msn: 15062747
Fatalities:Fatalities: 0 / Occupants: 2
Aircraft damage: Written off (damaged beyond repair)
Location:just south of the Kalispell City Airport near Ashley Creek, MO -   United States of America
Phase: Initial climb
Departure airport:Kalispell, MT (S27)
Destination airport:Kalispell, MT (S27)
Investigating agency: NTSB
The certified flight instructor (CFI) and student took off for an instructional flight during which a series of touch-and-go landings were performed. During initial climb out for the 13th takeoff, the engine sputtered, regained power, and then lost power on the crosswind leg. The CFI took the controls and attempted a forced landing. The airplane impacted the uneven ground, collided into a fence, and was destroyed by fire. During the subsequent examination of the airframe and engine, no evidence of any preimpact mechanical malfunction was found. The engine's carburetor assembly was examined by the Safety Board Materials Laboratory. Granular material was found on the walls of the carburetor's throat and in the interior of the inlet duct. The idle jet was substantially blocked and the main jet was partially obstructed. Similar fine granular material and clumps of mixed fine and coarser granular material were also found inside the carburetor jets. Because the granular sand-like material was found in both the fuel and air sides of the carburetor, it is evident that the foreign substance entered the carburetor during flight. The airplane had a history of infrequent usage. During the 10-month period from April 2007 to February 2008, the airplane had been operated for only 8.8 hours.
Probable Cause: A partial loss of engine power during initial climb due to fuel system contamination by a foreign substance. Contributing to the accident was the uneven terrain.



Revision history:

09-Jul-2008 22:39 Fusko Added
09-Jul-2008 22:44 harro Updated
16-Jul-2008 01:26 Fusko Updated
21-Dec-2016 19:14 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
21-Dec-2016 19:16 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
21-Dec-2016 19:20 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
03-Dec-2017 11:25 ASN Update Bot Updated [Operator, Other fatalities, Departure airport, Destination airport, Source, Narrative]

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