Accident Excel-Jet Sport-Jet N350SJ,
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Date:Thursday 22 June 2006
Type:Excel-Jet Sport-Jet
Registration: N350SJ
MSN: 001
Year of manufacture:2006
Total airframe hrs:24 hours
Engine model:Williams International FJ33-4A
Fatalities:Fatalities: 0 / Occupants: 2
Aircraft damage: Substantial, written off
Location:Colorado Springs-Peterson Field, CO (COS) -   United States of America
Phase: Take off
Departure airport:Colorado Springs-Peterson Field, CO (COS/KCOS)
Destination airport:Colorado Springs-Peterson Field, CO (COS/KCOS)
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
The Sport-Jet, a proof-of-concept very light jet was prepared for a local flight from Colorado Springs, CO (COS). The airplane departed runway 17R (11,022 feet by 150 feet, asphalt), became airborne only momentarily, and then impacted the runway and surrounding terrain. Several witnesses reported that approximately 15 feet above ground level, the airplane rolled hard to the left and began to "cartwheel" down the runway. The airplane came to rest off the left side of the runway, between the Charlie 1 and Charlie 2 intersections (3,400 feet from the runway threshold).
An examination of the airplane's systems revealed no anomalies. Approximately 1.5 minutes before the airplane was cleared for takeoff, a De Havilland DHC-8 turboprop airplane departed. A wake turbulence study conducted by an NTSB aircraft performance engineer concluded that even slight movement in the atmosphere would have caused the circulation of the vortices near the accident site to decay to zero within two minutes, that is, before the time accident jet would have encountered the wake from the DHC-8.

PROBABLE CAUSE: "A loss of control for an undetermined reason during takeoff-initial climb that resulted in an in-flight collision with terrain."

Accident investigation:
Investigating agency: NTSB
Report number: DEN06LA090
Status: Investigation completed
Duration: 10 months
Download report: Final report


NTSB id. DEN06LA090


Revision history:


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