It decreased to three when Williams and Surayev departed in March 2010, and finally returned to six in April 2010 with the arrival of Soyuz TMA-18, carrying Aleksandr Skvortsov, Mikhail Korniyenko and Tracy Caldwell Dyson.
Smanjena je na tri kada su u ožujku 2010. otišli Williams i Surayev i zatim se konačno vratila na šest u travnju 2010. dolaskom Sojuza TMA-18 s Aleksandrom Skvortsovom, Mikhailom Korniyenkoom i Tracy Caldwell Dyson.