Boeing passed a big spacecraft software test for its commercial crew spacecraft as it continues the long road to fixing the problems that bugged out a 2019 test flight to the International Space Station.

The company’s first attempt to send an uncrewed CST-100 Starliner spacecraft to the orbital laboratory 13 months ago failed following a series of glitches and software issues. Two NASA reviews of the flawed flight in 2020 identified 80 corrections Boeing will need to address before making another attempt.