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Old 21st Nov 2018, 14:48
  #1470 (permalink)  
AGBagb
 
Join Date: Aug 2008
Location: New York / Southern France
Age: 66
Posts: 95
Originally Posted by rog747 View Post
But as I have read on here one has to first switch off the 2 Stab trim cut off's first otherwise the MACS system will override and continue to keep trimming the a/c nose down despite whatever the pilots do either with the Trim button or manually when in manual flight - and THAT task is what it seems Boeing forgot to tell anyone in the MAX training differences - Am I correct?
And, at the risk of simply going round in circles here, there's the oddity of the final 2 lines in the "reminder" Runaway Stab memory item list that Boeing later pointed to:

Runaway Stabilizer

1 CONTROL COLUMN - HOLD FIRMLY

2 AUTOPILOT (if engaged) - DISENGAGE
Do not re-engage the autopilot. Control airplane pitch attitude manually with control column and main electric trim as needed

If the Runaway Continues
3 STAB TRIM CUTOUT SWITCHES (both) - CUTOUT


If the Runaway Continues
4 STABILIZER TRIM WHEEL - GRASP and HOLD
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