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Fifth helium leak detected on Starliner
NASA confirmed that Boeing’s CST-100 Starliner spacecraft has suffered a fifth, although minor, helium leak in its propulsion system.
WASHINGTON — NASA confirmed that Boeing’s CST-100 Starliner spacecraft has suffered a fifth, although minor, helium leak in its propulsion system as engineers work to prepare the vehicle for its return to Earth next week. However, hours after launch controllers said they had detected two more leaks, one of which was relatively large at 395 psi per minute, said Steve Stich, NASA commercial crew program manager, at the briefing. NASA closed the helium manifolds in the propulsion system after docking to stop the leaks, although they will have to be opened to use the spacecraft’s thrusters for undocking and deorbit maneuvers.
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