Accident Embraer ERJ-175LR N637CZ,
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Date:Saturday 16 June 2018
Time:21:00 LT
Type:Silhouette image of generic E170 model; specific model in this crash may look slightly different    
Embraer ERJ-175LR
Owner/operator:Compass Airlines, opf Delta Connection
Registration: N637CZ
MSN: 17000256
Year of manufacture:2008
Engine model:General Electric CF34-8E5
Fatalities:Fatalities: 0 / Occupants: 73
Aircraft damage: None
Category:Accident
Location:Cut Bank, Montana -   United States of America
Phase: En route
Nature:Passenger - Scheduled
Departure airport:Salt Lake City International Airport, UT (SLC/KSLC)
Destination airport:Calgary International Airport, AB (YYC/CYYC)
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
Narrative:
On June 16, 2018, about 2200 MDT, Compass Airlines flight 5774, N637CZ, Embraer 175, encountered turbulence while in cruise flight at flight level 300 while enroute to Calgary International Airport (CYYZ), Calgary, Alberta, Canada.   Of the 73 passengers and crew onboard, one flight attendant was seriously injured. The flight was operating under 14 Code of Federal Regulations Part 121 as a regularly scheduled passenger flight from Salt Lake City International Airport (KSLC), Salt Lake City, Utah to CYYZ.

According to the flight crew, air traffic control (ATC) relayed pilot reports of a "smooth ride with light chop" for their route of flight. The airplane was in visual meteorological conditions and the seatbelt sign was illuminated. At the time of the turbulence encounter the aft flight attendant was finishing up beverage service and was thrown against the bulkhead and jumpseat.  The flight attendant was unable to complete her duties due to the injury and two passengers assisted the flight attendant until landing.  Upon arrival at the gate in CYYZ, the flight attendant was transported to the hospital where she was diagnosed with a broken vertebra.

Probable Cause: an unexpected encounter with clear air turbulence.

Accident investigation:
cover
  
Investigating agency: NTSB
Report number: DCA18CA255
Status: Investigation completed
Duration: 2 years
Download report: Final report

Sources:

NTSB DCA18CA255

Location

Revision history:

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