Many of the other big, "traditional" national carriers (including American, Delta, and United) have been through Chapter 11 once. That's not really "trading in the state semi-permanently", though; none of the surviving big-name carriers have been through Chapter 11 more than once, and all are currently out of it.
https://en.wikipedia.org/wiki/List_of_airline_bankruptcies_i...
E: Just checked on Google flights and it does say the airplane you'll be flying.
Airlines can change their schedules without a lot of notice, and if you're flying an airline that has a lot of similar capacity planes, there's lots of ways you end up flying on something else.
If it's a big enough deal tobyou that you're willing to refuse to board when you see the plane's nameplate, you're probably not going to have a great travel day. It would be better to book a different airline than deal with the chances.
American Airlines has one of the largest Airbus fleets in the world. (A320 family and A330.)
United also has a fleet of A320s.
Spirit and Frontier are 100% Airbus, and JetBlue is all Airbus (Europe) and Embraer (Brazil.) Allegient is also 100% Airbus now.
Delta also has a huge Airbus fleet, and all of their recent fleet additions have been Airbus: the A321 and A321NEO, the A220, A330 and 330NEO, and the A350.
Even "Proudly all Boeing" Alaska Airlines is keeping a few A321s around for the long term after their merger with Virgin America (which ran a 100% Airbus fleet.)