Mordechai Ben David singing in the cockpit 

In 1991 Rabbi Shlomo Cunin, Rabbi Berel Zaltzman and Mordechai Ben David spend Chanuka in Russia flying around the Russian cities bringing joy and the light of Chanuka to all the Jews.
In this clip they are on their way to St. Petersburg. In the beginning Rabbi Cunin is seen Davening while Rabbi Zaltzman and Mordechai Ben David are trying to survive the cold. After woulds they somehow got to take over the cockpit, you see them singing the Lubavitcher Nigun Uforatzto.