Originally Posted by
Lonewolf_50
The bulletin establishes what looks like a very clear point: a Stabilizer can runaway, and there is a checklist for this malfunction.
Is the case of this aircraft (with AoA malfunction and the Runaway Stab malfunction) a compound emergency (by definition) or is this (Runaway Stabilizer) a predictable malfunction if an AoA sensor fails?
If the latter, how is this taught and practiced in the sim?
My motive for asking the question in this way is my experience in pilot and crew training, emergency procedures training and with that latter bit how one best uses simulator training to teach and train pilots and crews.
Perhaps it is being picky, but a trim that operates until overridden by pilot input, waits a few seconds and does it again is not 'runaway' as it can be prevented and most pilots would operate the STAB TRIM CUTOUTs after the second or third time.
A rather confusing issue is that while the other erroneous outputs and stick shaking seem to be limited to 'the affected side' - but the stab trim obviously is for both pilots. Therefore, the previous flights must have operated the STAB TRIM CUTOUTs as the FO on the previous flight flew the aircraft manually for the remainder of the flight. None of this was passed on to the subsequent crew as 'we had an AOA problem?'