These incidents also somewhat echo the earlier 737 rudder issues, which also had multiple total airframe losses with 100%+ fatalities and multiple incidents bef

These incidents also somewhat echo the earlier 737 rudder issues, which also had multiple total airframe losses with 100%+ fatalities and multiple incidents before it was fully resolved a decade later https://en.wikipedia.org/wiki/Boeing_737_rudder_issues https://en.wikipedia.org/wiki/Boeing_737_rudder_issues