Just for your info, if you feel like you want to try to save the bird and actually manage to land it undamaged at the airfield again and get out (like I did), the mission will never continue/end. I assume the script waits for the ejecting action, and you can't eject anymore after you got out because it is essentially dead, so you can't close the canopy and thus get no "eject" menu item anymore. And you can't move the repair trucks. Would have been actually a cool ending if you could just walk over to an officer and receive a pat on the back. But no, you are not rewarded for saving the Czech Republic a few hundred million koruna.