[sio8ohPi]

Quantas 72 is a flight that experienced a sudden uncommanded pitch-down (-0.8g), causing injuries.

https://en.wikipedia.org/wiki/Qantas_Flight_72

So it's in principle possible.

But passengers are notoriously clueless, to the point that "there was a go around and I thought we were all going to die" is practically a meme in aviation circles. Wait a few days and see what comes to light once it's investigated.

[ricardobeat]

Wow, I never imagined these aircraft could make violent maneuvers like this, at cruise speeds, without structural damage.

[fransje26]

Good find. I was wondering it was possible.