Original Message

Actually hard to tell if the doppler effect was creating the changing of the frequencies

Where did you hear it did barrel rolls? That's nuts if that's what happened

We surely don't know much of the data yet. 135 pilots go through a ton of single engine training, so highy doubt this guy just botched a single engine event. I think there are a lot more facts to come out before we reach any conclusions; they may surprise all of us