He described the problem valve as “buzzing” in a manner that violated its guidelines for launching Starliner with the ...

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The Teflon coating over a thrust valve would heat up, melt, and be extruded from the jet. The obstruction would block the propellant flow. The Starliner Calypso finally undocked from the ISS just ...

given leaks and a sticky valve issue on board, with the pair ending up marooned. The contract was worth $4.2bn (£3.3bn). Despite the pair securing their Starliner on arrival at ISS, they could ...

The Starliner spacecraft has encountered several technical issues, including five helium leaks, malfunctioning maneuvering thrusters, and a partially faulty propellant valve. These problems have ...