Complex sentence: The first officer then manages to pull out of the dive, but over-corrects, putting the plane in an almost vertical ascent, stalling the plane again and it falls out of the sky in a corkscrew dive.
Split into simpler sentences: The first officer then manages to pull out of the dive, but over-corrects, putting the plane in an almost vertical ascent, stalling the plane again. It falls out of the sky in a corkscrew dive.