Also, don't forget that the 787's were also grounded when they were new for their battery problems: https://en.wikipedia.org/wiki/Boeing_787_Dreamliner_battery_

Also, don't forget that the 787's were also grounded when they were new for their battery problems: https://en.wikipedia.org/wiki/Boeing_787_Dreamliner_battery_problems https://en.wikipedia.org/wiki/Boeing_787_Dreamliner_battery_... It's a bit of a different situation, but they were grounded for a problem that I don't believe caused a single fatality, but had more incidents in a shorter time period.