I have the Same problem with any plane in the sim. It happens randomly and about every 5-10th Flight. Throttle is at 90% and plane gets slower and slower no chance to recover it. It happend with many planes to me now. Fenix A320, ini A330, ini A320N and ini A330N. I think it has to do with the sudden Weather changes of the Live Weather, that sometimes also crash into the Plane so much, that the AP disconnects. I didnt find any solution. I hope Asobo will adress this Bug. It destroys the flight cause you cant do anything until the Plane starts stalling…