[ams6110]

Well a single layer, unreinforced brick wall isn't really that strong, especially near the top edge. It's perhaps plausible they didn't feel anything or at least nothing very alarming. I mean, the gear presumably still retracted properly and deployed later for landing, so it wasn't damaged too badly.

[djsumdog]

Yea I'm interested in seeing what the passengers say. If they just heard a bump or didn't suspect a thing, the plane may have just graised it and the pilots didn't notice. If the passengers heard a noticeable sound or reported concerns and were dismissed, that's grounds for negligence.

[lbriner]

I don't know about you but I hear plenty of clunks and wirring on planes during take off and landing, sometimes uncomfortably loud and even though I know a bit about planes, I don't know if it's normal or not. (I'm alive so I assume it is normal!)

One takeoff I was on, the plane was vibrating like crazy, like I've never heard before but after a few minutes, it stopped and nothing happened!

[userbinator]

The other photo posted here shows that it was a rather thin brick wall too:

https://news.ycombinator.com/item?id=18205837

I guess the majority of the damage was done by the large steel antennae it hit before the wall.