Hi everyone, I did remove everything before installing NGX + Sp1 and now I experience something not normal in mid flight. I created a flight from LAX - SFO and when I was about FL350 and T.O.D the aircraft entered a step bank and stalled. I disengaged the autopilot and I recovered from the situation but I couldn't get the autopilot to engage again period. This never happened before installing SP1 also I get master caution warning lights, throttle disengaged light but with no sound. I don't know if this is normal as well.

Sounds weather related to me - there are no known AFDS issues like this that we're aware of.

Thanks for the reply Ryan, I'm using ASE as I was before SP1 using, but why I can't re-engage the auto pilot again ??? is there any changes made to the way AP behaves ? Thanks again.Evan Banalian