Airliner collides with UFO (originally from Mysteries of the Multiverse)
http://www.dailymail.co.uk/news/article-2339139/Was-bird-A-Plane-Or-UFO--Chinese-passenger-jet-hits-mysterious-object-26-000ft-lands-severely-dented-nose-cone.html
FWIW, Geese have been logged flying as high as 29000 feet.
