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ASN Wikibase Occurrence # 23032
Last updated: 16 March 2020
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Type:Silhouette image of generic PA34 model; specific model in this crash may look slightly different
Piper PA-34-200T
Registration: C-GBEN
C/n / msn: 34-7970357
Fatalities:Fatalities: 1 / Occupants: 1
Other fatalities:0
Aircraft damage: Written off (damaged beyond repair)
Location:White Bird, 25 NM S of Cottonwood, Idaho -   United States of America
Phase: En route
Departure airport:Springbank, (CBW)
Destination airport:Vancouver, (YVR)
Investigating agency: NTSB
Prior to his departure the pilot informed maintenance personnel that he would be flying from Calgary, Canada to Vancouver, Canada. There was no radar data availble on the accident aircraft after taking off, nor while on the en route portion of the flight. At approximately 0755, local law enforcement personnel reported receiving a telephone call from an individual who reported seeing a twin engine airplane flying low over the area close to the Snake River. At approximately 0845, a second witness reported seeing a twin-engine airplane on the east side of the Salmon River at an altitude estimated to be between 200 and 500 feet above the ground, heading north-northwest paralleling the river. The witness stated that he didn't detect anything "irregular" about the engine, and that the airplane disappeared out of sight as it continued in a north-northwest direction. At 0930 the aircraft wreckage was located in a remote forested area. The beginning of the wreckage path was evidenced by multiple severed trees and extended over an area of approximately 555 feet on a southerly heading. Both wings were separated from the fuselage, and all fuel tanks were breached. The vertical stabilizer and rudder remained attached to the empennage, while the stabilator and elevator were separated. There was no post-impact fire. Post-accident toxicology testing revealed a carboxyhemoglobin (carbon monoxide) level of 17% which would be expected to result in measurable impairment of cognitive function. Examination of the airframe, engine and aircraft logbooks did not reveal any pre-existing anomalies which would have prevented normal operations.

Probable Cause: The failure of the pilot to maintain clearance with terrain while maneuvering. Factors contributing to the accident included the impairment of the pilot due to carbon monoxide exposure and the trees.



Revision history:

27-Sep-2008 01:00 ASN archive Added
19-Feb-2015 14:49 Dr. John Smith Updated [Registration, Cn, Operator, Total occupants, Location, Phase, Nature, Departure airport, Destination airport, Source, Narrative]
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]
08-Dec-2017 18:56 ASN Update Bot Updated [Operator, Departure airport, Destination airport, Source, Narrative]

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