Install the navigational module | 7: Mayhem Dead Space 3 Guide

Leave the ship with the same way. Once you get outside, you'll notice the shuttle. Install the module the same way as the previous part you've installed - via the front panel. Use kinesis to open it.

When you're ready, you can enter the shuttle. The entrance is located on the right side (when looking at the hull). Use kinesis to open the gate. While inside, wait a moment for equalize air level. Go through another door to the next room, where you'll meet the rest of crew.