Originally Posted by
hec7or
Erm, having studied the FDM data in Fig 2 of the AAIB report, I would suggest that this is a clear case of failing to realise that the AP didn't engage when the button was pressed.
How is that? Which part of Fig 2 shows the AP button being pressed?
Looks to me like AP engaged until the moment the N1 starts to increase, consistent with the pressing of TOGA and the associated disengagement on the AP for a single AP approach. Then it's re-engaged a bit later after the 'recovery' phase is complete