If you select a career mode mission that has you fly the Saab 340- click start flight and you can either select “skip to taxi” or even just enter the plane normally- the plane almost instantly goes crazy and crashes into the ground over and over again. If you get lucky you can try to press ESC to reach the pause menu, otherwise you have to exit the game completely because the stupid back on track will just keep putting you into the same crash over and over again.
I tried two diffferent missions with the Saab 340 and both of them did the exact same thing. One mission was KONT to KMYF and the other was KHRI to KPDX.
You can see my plane upside down in the screenshot below where it’s supposed to be parked.