Hello
Turbine D;
And as they did so, the turbulence increased and they reduced speed to MACH .80. They probably had no time to ask for a deviation at this point in time and it wouldn't appear they needed to deviate for very long.
Just some thoughts.
Entirely plausible,
TD - Absence of communications for an ATC clearance to deviate for weather does have other explanations. As I mentioned, I've had to do it just once - SFO HF was terrible, (noisy and crowded), there was no such thing as "CPDLC" and we HAD to start the turn in the next ten miles. Rare, but it happens. Normally it's accompanied by a broadcast in-the-blind on 123.45 and possibly 121.5 but maybe it got really rough quickly - the need to bring back the Mach doesn't occur very often. The pitch-up may have a similar, plausible explanation, before it got out of hand, that turns out to be entirely different than what has been posited thus far. We'll know soon enough I hope.