 Astronaut Suni Williams saying the issues in the capsule's thruster system, including leaking helium, are being duplicated and explored by Boeing and NASA. Astronaut Butch Wilmore. We're going to learn from that, and we're going to incorporate new processes, new procedures. Five thrusters failed as the capsule approached the space station on June 6. Four have been reactivated, and they could get home now, they say. But the service module, SM, would be discarded and burn up during reentry.