Visible Escalator Collapse From UA175 Impact

I am sorry if this has already been discussed. I haven't seen it mentioned on here or anywhere else. (which means it is really could be actually rare. I hope.)

This is something that Super Paw wrote about on his Quora subscription a couple of years ago. I have never seen it mentioned anywhere else and I had actually forgotten about it until last week

If you watch Cynthia Well's footage then pay close attention to the top center of WTC2. You can make out something that looks like an escalator or stairs like what would lead from the indoor observation area up to the actual roof. This entire shape or outline completely disappears right at the moment UA175 hits the building. This happens before the fireball is visible. It actually happens almost exactly when there is that sudden puff of smoke and fire that comes out of WTC1 caused by the pressure wave. I thought it could also be a glare or reflection that is changed from the building leaning towards the camera but it seems unlikely.

I remember watching some tourist videos to see it from inside the building but never did. The only stairs or escalators that I saw were on the East and West sides. I didn't see any on the North side which is where they are in the.video. It has been awhile so I could be completely wrong about that part.

Regardless, something happened up there at the moment of impact. I am hoping someone else has seen pictures or video showing what it looked like from inside before that day. I am kind of hoping that I just overlooked it.

https://youtu.be/ToWjjIu-x_U?si=TE_7dbGI9MhCUz3G

If you start watching at 10:00 then you will have time to spot it before it disappears at around 10:18.