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What happened during the first crewed test flight of Starliner?

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The first crewed test flight of Starliner launched on June 5, 2024, faced thruster failures and helium leaks, delaying its return. The flight was originally scheduled to last about a week. Astronauts Barry Wilmore and Sunita Williams had to join the ISS crew, and they returned to Earth in March 2025 on a Dragon spacecraft.