I did the same search today and found out that teamspeak just got updated to a more “modern” UI and feature set. While it is still proprietary software, it’s more feature complete than a lot of the other FOSS alternatives.

The plane is 7 years old. This isn’t a Boeing issue, this is a Southwest maintenance issue. Engine cowlings are regularly removed for maintenance. If a latch or latches aren’t properly secured or suffer from excessive wear then this is the outcome. I get the disdain for Boeing, but it should be based on issues of their negligence, not the negligence of their customers.