Hi, no that wasnt us, that sounds way scarier than what happened to us. we weren't in chetumal at all, we went to cancun.
We arrived today, back home, again in a 320. That noise is just annoying. Again there was a strange situation right after the plane landed (so we dont worry that much anymore) where you can heard the "wwwooof, wooof, wooof, wooof" of the PTU (as i learned here) but easily 1 minute after the plane touched the ground all the way to when the pilot shut the engines off there was a screeching "weeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee eeeeee" and it never stoped until we were in the gate and the barking sound started to come on and the screeching sound stoped