Originally Posted by
yoko1
Specifically, what "trim wheel problem" are you talking about? The reported problem was with disconnecting the autopilot in certain situations. Obviously, if correct, this issue ought to be fixed.
If you think this is related to the accident scenarios, I should remind you that MCAS is not active when the autopilot is engaged.
However, did you notice that in the discussion of other things that needed to be resolved there was no mention of anything having to do with the Main Electric Trim system (switches, relays, motors, etc)? Conspicuously absent, and another one of those non-barking dogs.
Yoko 1 - why on earth do you ask what "trim wheel problem", you know perfectly well what "trim wheel problem".
The referenced Bloomberg article specifically stated
"...EASA’s checklist included a number of issues that have been disclosed; the potential difficulty pilots have in turning the jet’s manual trim wheel."
and the subject has been covered in various aviation articles which you must have read including
https://www.satcom.guru/2019/04/stab...and-range.html
relevant quote..
"...
One possible explanation is that the loads on the jackscrew due to the severe stabilizer nose down out-of-trim situation were too great for the pilot to overcome using the trim wheel with folding handle. The pilots restored electric trim as a means to trim.
Boeing published a technique in the past that discussed this issue and the need to release the column briefly in a series of "roller coaster" or "yo yo" maneuvers, by cranking in stabilizer trim alternatively with large column commands...."
So I repeat, why ask a question when you already know the answer?
Alchad