Thank you! I actually hid the post after I made it at first because I realized it was hard to read. But I saw it had gotten an upvote in the few seconds it was up so I restored it.
The twitter user is an actual commercial pilot, and ACARS messages do look like that. Not sure what's up with SKW2438/SKY2438 but otherwise it seems legit. I think faking it would be harder than actually doing this.
Edit: Here's a picture of a much longer message in a more professional, non furry rp context:
Except that that might explain the slightly different alias on that line. Maybe it's a message just like the rest, sent for the sake of the meme, and the alias just happened to get typed incorrectly...
Considering pilots shitpost on guard to the extent that actual emergencies threatening lives are literally not able to be heard… I don’t doubt this lol