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SpaceX is replacing two engines on its Falcon 9 ahead of next crewed mission - The Verge

SpaceX is replacing two engines on its Falcon 9 ahead of next crewed mission - The Verge

SpaceX is replacing two engines on its Falcon 9 ahead of next crewed mission - The Verge
Oct 28, 2020 45 secs

SpaceX is replacing two engines on its Falcon 9 rocket that will soon carry four astronauts to the International Space Station.

The change is being made after SpaceX found a substance in the engines that could have caused them to start earlier than planned.

Today, SpaceX revealed the rocket had automatically stopped its own launch after two of its nine main Merlin engines tried to start too early.

After the abort, SpaceX inspected the engines and found a reddish lacquer substance blocking a relief valve in each model.

The lacquer, analogous to nail polish, is used to treat surfaces, likely leftover from when the engines were being built.

After the abort, SpaceX also examined the engines in its fleet that will be used for upcoming launches.

SpaceX also noted that the lacquer was found mostly on newer engines that had been built recently, not the engines that have already flown to space and back.

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