Japan Airlines flight JL57 from San Francisco (SFO) to Tokyo Narita (NRT) experienced turbulence over the Pacific Ocean, resulting in a serious injury to a flight attendant.
The Boeing 787 continued safely to Tokyo with 185 passengers and 13 crew on board, where authorities later confirmed the injury and opened an investigation.
More - Japan Airlines San Francisco to Tokyo Flight with 787 Turbulence Injures Crew

