I'm curious as well. I know it was with Executive Flight in Wenatchee for many years, both as a general charter airplane and then on an air ambulance contract they had. They went out of business years ago (at one time, they were a pretty sizable operation, with Commanders, Learjets, and Challengers, along with a large maintenance shop), and I think it still belongs to someone associated with them.
I see it at Aero Air once in a while. I believe Aero Air did the hot section, which is interesting, but not a big cause for concern.
However, I keep seeing intimations that there is something wrong with it, but no one will say outright.
