Soyuz TMA -18 is a mission name for the flight of the Russian Soyuz spacecraft to the International Space Station (ISS). As part of the ISS program, the flight is called ISS AF -22S. It was the 22nd visit of a Soyuz spacecraft to the ISS and the 128th flight in Sojusprogramm.
- Alexander Alexandrovich Skvortsov ( first space flight ), Commander ( Roscosmos / Russia)
- Ellen Tracy Caldwell Dyson ( second space flight ), aircraft engineer (NASA / USA)
- Mikhail Borisovich Korniyenko ( first space flight), flight engineer ( Roscosmos / Russia)
Soyuz TMA -18 was launched on April 2, 2010 at 4:04 UTC from the Baikonur Cosmodrome and brought two days later, three members of the crew of the ISS Expeditions 23 and 24 to the International Space Station. The Soyuz spacecraft Soyuz TMA -16 sparked off as a rescue capsule. The crew received three space freighter Progress M ( - 05M, 06M - 07M and - ), and Soyuz TMA -19 and the Space Shuttle STS -131 and STS -132 and did some outboard maneuvers.
When disconnecting the spaceship there was a problem with the seal so that the uncoupling process has been canceled. The trip computer reported on the basis of sensor data that the hatch between the module Poisk and the spacecraft was not hermetically closed. The astronauts left the Soyuz capsule, the return was delayed by one day to the 25th of September. An investigation of the coupling adapter by ISS Flight Engineer Fyodor Yurchikhin presented a loose gear behind a cover firmly as possible causes. Later reported Roskosmos chief Anatoly Perminov, that the defect was caused by the rupture of a small pin, whereby the retaining bolts of the spaceship could not be solved.
The second decoupling attempt a day later on 25 September 2010 passed without any problems. The crew of Soyuz TMA -18 capsule landed after a normal descent to 5:23 UTC clock in the Kazakh steppe 35 km south of Arkalyk.