Huh? Such a situation is clearly confusing, but my post isn't.Bracebrace wrote: ↑11 Mar 2019, 15:55That's a very confusing post...
Unreliable airspeed asks for a specific pitch target (pitch change using the yoke) and throttle selection (thrust change) and no actions with the trim system itself. You don't interfere with the trim system itself.
Runaway stabilizer on the other hand calls for yoke to regain control and activate the yoke cutout switches (no specific pitch target), AT disconnect (no thrust change) and further actions dealing with the trim system itself to de-activate it's function partially or completely.
Two completely different procedures. What goes first? Or only one? Confusing.
If this is the second crash, it is pretty clear there is a problem with the "failure identification". Confusion again.
If the thing is in there, pilots should be informed and have a function demo so they can at least identify what is happening. Confusion is not a problem behind a desk if you have hours and hours to study the case. Confusion is to be avoided at all times inflight. Confusion about failures, confusion about procedures, .... not good.
Two different procedures, indeed, but both came together in the Lion Air crash, AFAIK.
They had erroneous airspeed + attitude indications and runaway stabilizer.
If you have both problems, you apply both checklists. There is nothing that prevents you to do so.