Inspection of the Soyuz TMA-12 spacecraft, checking the five locks that attach the return module to the propulsion module, and retrieve a suspect pyrotechnic bolt for inspection by engineers on the ground. They also installed a docking target for a new Russian module scheduled for launch late summer 2009.

Removing and installing science experiments. They also installed rendezvous equipment for a new Russian module scheduled for launch late summer 2009.

Moving a small crane, installing a communications terminal and removing and inspect antennas. Other tasks included installing a materials science experiment and deploying a micro-satellite.