PPRuNe Forums - View Single Post - MAX’s Return Delayed by FAA Reevaluation of 737 Safety Procedures
Old 27th Sep 2019, 15:24
  #2638 (permalink)  
HighWind
 
Join Date: May 2008
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Originally Posted by Water pilot
My understanding of this incredibly long thread is that "turn the trim off with those conveniently located trim switches" was exactly the wrong thing to do in this situation and was one of the reasons for the crash. .
I understand where you are coming from... Removing the stab cut-out switches made the situation worse.
The cut-out switches with 'relay logic' are more reliable than the current DAL-C flight control system, but I cant imagine that the 'relay logic' would fulfill DAL-A.
If DAL-A is needed since the runaway control forces can't be handled by the Pilots, then the functionality of 'relay logic' must be reimplemented in DAL-A software instead.
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