Accident Bombardier CL-600-2B16 Challenger 604 N237QS, Thursday 8 August 2019
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Date:Thursday 8 August 2019
Time:16:47 LT
Type:Silhouette image of generic CL60 model; specific model in this crash may look slightly different    
Bombardier CL-600-2B16 Challenger 604
Registration: N237QS
MSN: 6127
Year of manufacture:2018
Total airframe hrs:874 hours
Engine model:General Electric CF34-3B
Fatalities:Fatalities: 0 / Occupants: 10
Other fatalities:0
Aircraft damage: None
Location:Lubbock, Texas -   United States of America
Phase: En route
Departure airport:Dallas-Love Field, TX (DAL/KDAL)
Destination airport:Santa Ana-John Wayne International Airport, CA (SNA/KSNA)
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
The business jet was climbing through flight level (FL) 335 to an assigned altitude of FL 340, when it suddenly encountered turbulence. The captain reported that the airplane was in smooth air when the turbulence was encountered. The passenger seat belt sign was off. Unsecured objects, passengers, and the flight attendant were thrown about the cabin, resulting in several minor injuries and one serious injury to a passenger. The captain stabilized the airplane and diverted to the nearest airport and landed. Flight data recorder (FDR) data recorded the event that lasted for about 11 seconds. At the time of the turbulence encounter, the airplane was between eight and ten miles in trail of a heavy transport airplane. The transport airplane was level at FL340 and on the same assigned route as the business jet. The flight crew of the business jet was not aware of the preceding heavy transport after the turbulence encounter. It is likely that the business jet encountered wake turbulence from the proceeding heavy transport airplane.

Probable Cause: The unexpected wake turbulence encounter while climbing in smooth air to cruise, resulting in passenger injuries. Contributing to the accident was the passenger seat belt sign was off.

Accident investigation:
Investigating agency: NTSB
Report number: CEN19LA266
Status: Investigation completed
Duration: 2 years and 7 months
Download report: Final report




Revision history:

11-Jun-2024 17:50 ASN Updated
16-Jun-2024 09:47 ASN Updated

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