Originally Posted by
Lyman
The THS kept going due lack of Pilot input. In other words, it autoed into the STALL.
That's called non-cognitive runaway TRIM. Un-commanded in the first place, but requiring a command to stop.
Arse about.
Someone, please define "TRAP".
THS responded to pilot up-elevator input. Nothing more nothing less and nothing uncommanded. Down-elevator would have undone it - but the elevators were never put down after the stall.
THS didn't auto into the stall either. Look at the traces. Stall was achieved with elevator alone.
Inadvertently stall a big jet and you've already got a big chance of dying (odds are bad enough even in GA). Do it with no outside visual reference, some already broken instruments and in turbulence in middle of a cb... and your chances are probably <10% at best (at an optimistic guess). By the time the THS started moving, they were already well into a trap and needing a miracle.