Space.com: SpaceX launches 60 Starlink satellites, lands rocket at sea in 2nd flight this week

On Wednesday evening, Kathy Lueders, NASA’s head of human spaceflight, tweeted that one engine was being replaced on the booster for SpaceX's upcoming Crew-1 astronaut flight and and the Sentinel 6 ocean-mapping mission. Both of these flights are set to launch in November and feature brand new boosters, just like the GPS mission. The repairs are not expected to impact launch dates, Lueders said.