Overview
- Mission control identified the problem after telemetry on May 27 showed elevated motor current and a wrist joint that would not move during normal Canadarm2 operations.
- NASA and the Canadian Space Agency concluded that an on‑orbit replacement was required and confirmed a spare wrist joint is already aboard the International Space Station.
- Astronauts Chris Williams and Jessica Meir will perform U.S. Spacewalk 95 to remove the faulty joint and install the replacement, with Williams as crew member 1 in a suit with red stripes and Meir as crew member 2 in an unmarked suit.
- The EVA is scheduled to begin June 30 with roughly six-and-a-half hours of work, live coverage across multiple streaming platforms, and real-time engineering support from ground teams for troubleshooting.
- Canadarm2 has supported station operations for more than 25 years and was built with modular parts for on-orbit servicing, so this repair highlights routine lifecycle maintenance and the international coordination needed to keep the lab functioning.