Gennady Padalka will be his replacement .
Lonchakov had been scheduled to fly on Expedition 44 to the International Space Station , and at the time of announcement , no replacement had been named .
Gennady Padalka will be Lonchakov 's replacement .
Lonchakov had been scheduled to fly on Expedition 44 to the International Space Station , and at the time of announcement , no replacement had been named .