Lech Kaczyński, the president of Poland, was not able to continue its official trip through Asia, when its plane refused to ignite in Mongolia. Apparently, the temperature dropped at night to well below -10 degrees C, and it had a significant affect on the plane's ability to operate.
Several attempts to start engines proved unsuccessful, so did defrosting procedures. The TU-154M, which was made in the Soviet Union, had to go back to hangar. While the president's aides borrowed a plane from Mongolian hosts, to carry on with the trip to Japan.