Severe Turbulence - AGP 105
A United Airlines 737 flight from Denver to Billings experienced a severe upset, injuring three cabin crew members and two passengers. While it isn't yet clear what caused the episode, I suspect it may have been caused by Mountain Wave turbulence, which is common this time of year in the Western US mountain states.
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APG 105 - Ethiopian Airlines Flight Hijacked, United Flight Severe Turbulence