"Grand Canyon emergency landing" is impossible to complete - at the moment of the nose gear touch-down "You crashed" message appeared, have tried hundreds of times, with all combination of flap settings, air brake activated/not etc. Landing roll seems to proceed perfectly till the nose gear touches down
"Landing gear failure in Innsbruck" - the app doesn't reckognize the landing as complete even after full stop perfectly on the center line - I believe the problemo stays with the nose gear again (Since it stays retracted)
Most frustrating, since I have long time ago completed all the other challenges