TAYLORCRAFT BC12-D1 near Skokomish, WA — 2009-10-11
- Date
- 2009-10-11
- Location
- Skokomish, WA, USA
- Aircraft
- TAYLORCRAFT BC12-D1
- Registration
- N44362
- Category
- Airplane
- Highest injury
- Fatal
- Fatalities
- 1
Probable cause
The pilot's failure to maintain clearance from trees while flying over hilly, forested terrain.
NTSB narrative
After refueling his airplane in the early afternoon, the pilot departed to a destination unknown to anyone else. When he did not return, he was reported missing and a search ensued for the airplane. About seven months later, the airplane's wreckage was discovered in thick underbrush on a ridge of densely forested hilly terrain. The airplane's left wing had impacted two conifer trees near their tops, resulting in the outboard four feet of the wing separating at that location. The airplane had traveled another 115 feet through the forest, with its wings impacting several other trees, before coming to rest inverted in the underbrush. Examination of the propeller blades and observation of cleanly cut tree sections along the wreckage path revealed evidence of engine rotation at the point of initial impact. A full engine teardown inspection did not reveal any evidence of anomalies that would have existed at the time of the accident and that would have kept the engine from developing full rated horsepower.
Analysis
- Primary failure mode
- Human factors
- First missed decision gate
- Pilot did not file a flight plan or inform anyone of his destination.
NTSB coding
Evidence available
- Photos
- 27 docket documents
Docket documents27
- Release of Aircraft Wreckage, NTSB Form 6120.15form
- Excerpts from Aircraft Logbookother
- Excerpts from Pilot Logbookother
- Satellite view of the direct flight route between Westport and Snohomish.other
- Satellite view of the terrain in the area around the crash site.other
- Topographic Map of Accident Areaother
- Weather Dataother
- Image 1. Aerial photo looking down through the trees at the airplane's wreckage laying upside-down in the underbrush.photos
- Image 10. Photo of left wing tip lying in the underbrush near the point of airplane's initial impact with the trees.photos
- Image 11. Photo of significantly damaged outboard four feet of left wing lying in the underbrush near the point of the airplane's initial impact with the trees.photos
- Image 12. Photo taken at accident site of the auxiliary tank fuel valve in the off position.photos
- Image 13. Photo of smooth stained surface of sliced/cut portion of tree trunk found along the impact track.photos
- Image 14. Photo of recovered engine, looking from front to rear, prior to teardown inspection.photos
- Image 15. Photo of interior of engine after disassembly, with crankshaft and connecting rods in view, and cam shaft removed.photos
- Image 16. Photo of cam shaft after removal from engine.photos
- Image 17. Photo of oil screen after removal from engine.photos
- Image 18. Photo of carburetor bowl after disassembly, to include float valve seat and venturi with main fuel discharge nozzle.photos
- Image 19. Close-up photo of carburetor float valve and float valve needle.photos
- Image 2. Photo of broken top of first tree impacted by the airplane.photos
- Image 3. Photo of upside-down airplane wreckage as viewed from nose to tail.photos
- Image 4. Photo of upside-down right side of airplane's fuselage, with significantly damaged right wing in foreground.photos
- Image 5. Photo of upside-down left side of airplanes' fuselage, with significantly damaged left wing in foreground.photos
- Image 6. Photo of upside-down airplane wreckage as viewed from tail to nose.photos
- Image 7. Photo of one blade of the propeller laying horizontally on the surface of the accident site terrain.photos
- Image 8. Photo of other blade of the propeller laying horizontally on the surface of the accident site terrain.photos
- Image 9. Photo of outboard portion of left aileron lying on underbrush near the point of airplane's initial impact with the trees.photos
- Satellite view of the relational position of the airplane's outboard left wing section and the main wreckage.wreckage
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