It WAS a wholly owned operator - Flagship Airlines - which later was one of the four wholly owned AE carriers to be merged into the present AE. AE has a particular aversion to bust partly because it was one of THEIR captains that failed to disclose busts in his previous flying life and who later crashed a perfectly good Jetstream into the forest. PRIA came about as a result of that accident. I was an FO at AE at the time and remember it well.