Accident Boeing 757-232 N623DL,
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Date:Monday 23 May 2011
Time:15:20 LT
Type:Silhouette image of generic B752 model; specific model in this crash may look slightly different    
Boeing 757-232
Owner/operator:Delta Airlines
Registration: N623DL
MSN: 22913/118
Year of manufacture:1986
Total airframe hrs:61801 hours
Engine model:Pratt & Whitney 2037
Fatalities:Fatalities: 0 / Occupants: 187
Aircraft damage: None
Category:Accident
Location:Boone, North Carolina -   United States of America
Phase: En route
Nature:DSP
Departure airport:Boston-Logan International Airport, MA (BOS/KBOS)
Destination airport:Atlanta Hartsfield-Jackson International Airport, GA (ATL/KATL)
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
Narrative:
On May 23, 2011 at about 1520 eastern daylight time, a Boeing 757-223, N623DL, operated by Delta Airlines as flight 2001, encountered turbulence while in cruise flight from Boston Logan International Airport (BOS), Boston, Massachusetts to Atlanta Hartsfield International Airport(ATL), Atlanta, Georgia. The flight was operated under the provisions of 14 Code of Federal Regulations Part 121 as a regularly scheduled passenger flight. One passenger was seriously injured and one of the 4 flight attendants experienced a minor injury. None of the 2 flight crew, other 3 flight attendants, or other 180 passengers was injured. The airplane was not damaged, and continued the flight to Atlanta.

The flight crew reported that while in cruise flight at FL340, approximately 200 miles northeast of the destination, they were in an area of forecast convective weather and were maneuvering between two cells when they inadvertantly entered the edge of a cumulus buildup at the time of the turbulence. The seat belt sign was illuminated at this time, but the passenger was out of her seat and fell, resulting in a broken ankle.

Probable Cause: Inadvertant encounter with convective turbulence while in cruise. Contributing to the severity of the accident was the unrestrained status of the passenger, contrary to the lighted seat belt sign.

Accident investigation:
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Investigating agency: NTSB
Report number: DCA11CA060
Status: Investigation completed
Duration: 7 months
Download report: Final report

Sources:

NTSB DCA11CA060

Location

Revision history:

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