MiG-31 903 taxying out during ILA 92 for an evening display test flight to decide the rest of its programme. Unfortunately they were too exuberant, and the flying control committee decided they should stay on the ground the rest of the week, much to the disappointment of the paying public.
Got it? (Die haben die Sau rausgelassen!) Pilot I believe was Taskaev, Nav was Ermakov.