United Flight 2428 on Thursday dropped its speed of descent after systems on the plane alerted the pilots they had to make a move to avoid hitting another plane, the Federal Aviation Administration noted in a report filed Monday.
United Airlines plane slows to avoid collision above San Francisco; 2 passengers injured
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SpaceX has 30 days to respond to the accusations, the FAA said.
Elon Musk says SpaceX will sue FAA over regulatory overreach
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