Global aviation authorities grounded the Boeing 737 Max aircraft after two crashes — a Lion Air flight in October 2018 and an Ethiopian Airlines flight in March 2019 — killed a total of 346 people within five months. At the time of the grounding on 13 March, 387 of these planes were being operated by 59 airlines.10 https://www.nytimes.com/2020/01/05/business/boeing-737-max.html
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