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Investigation into Crew Dragon incident continues - SpaceNews.com

WASHINGTON — More than a month after a Crew Dragon spacecraft was destroyed in a test of its propulsion system, NASA and SpaceX investigators are still working to determine the cause of the accident and its implications for upcoming test flights.

In a May 28 presentation to the NASA Advisory Council's human exploration and operations committee, Kathy Lueders, manager of the commercial crew program at NASA, offered few updates on the progress of the investigation into the April 20 incident at a SpaceX pad at Cape Canaveral Air Force Station in Florida.

In that incident, SpaceX was testing both the Draco thrusters and larger SuperDraco abort thrusters in preparation for an in-flight abort test of the capsule that, at the time, was scheduled for the end of June. "An anomaly occurred during activation of the SuperDraco system," she said, but offered no details on what caused that anomaly.

[...] With the investigation ongoing, Lueders said the dates of both the in-flight abort test and the Demo-2 mission are under review. Assembly of the Demo-2 capsule continues, she said, although she said workers are keeping open the vehicle's propulsion system in case they need to make modifications as a result of the investigation. "They're making progress in a lot of the other areas while trying to keep, most particularly in the prop area, access to the systems that may need to be modified," she said.

She didn't give an indication of when that investigation will be completed. "You don't push your anomaly investigation team too quick," she said, stressing the importance for them to be "methodical" while working through all parts of the fault tree of potential causes.

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