Lack of redundancies on Boeing 737 MAX baffles some involved in developing it

Re:Lack of redundancies on Boeing 737 MAX baffles some invol... by bushido on Wednesday April 03, 2019 @07:52AM (#19562572)

Per initial reports the black box data suggests that the procedure was followed, but the MCAS was re-engaged, looks like investigations are ongoing if the MCAS can re-engage automatically or if the trim was too hard to manually override and re-engaged by the pilots to be able to use the electric trim to level the plane.

https://www.wsj.com/articles/ethiopian-airlines-pilots-initi...

[ Parent | on HN ]

Re:Lack of redundancies on Boeing 737 MAX baffles some invol... by phire on Wednesday April 03, 2019 @08:25AM (#19562733)

That actually raised more questions than it answers.

Did the pilots fail to notice the MCAS problem before it put the plane too far out of trim?

Could they have saved the plane if they stuck to the procedure and kept adjusting the trim by hand?

Why does MCAS override even direct pilot trim up commands?

Is the runway trim procedure even viable on older 737s once the trim goes past a certain point? Or are we just lucky that it never happens?

[ Parent | on HN ]