Artemis I Launch: NASA’s Moon Mission Launch Called Off After Engine Issue

This is disappointing, Aerojet Rocketdyne Holdings, said there are no early indications that Monday’s Artemis I launch was scrubbed because of problems with its four RS-25 engines, according to a company spokesman. He said engineers are focused on issues with the bleed lines used to regulate engine temperature. Engines have to reach a certain temperature prior to takeoff.

Nest launch window is Sept 2nd.

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ChipmunkErnie · 70-79, M

I was shocked to hear the report that these are "used" engines leftover from the Space Shuttle lauches?

Northwest · M

@ChipmunkErnie They are behind on the design and testing of a new generation of everything, from engines, to booster engines, to Orion engines, to capsule. So, for engines, boosters and Orion engines, they are using recycled Space Shuttle components for the first 4-5 Artemis missions. It may seem incredulous, but these things are secondary to what they're trying to do now. They can either wait 3 more years, or kick it into gear. They are not going to recover these parts (as in, they will let them drop to the bottom of the Pacific).

What caused the longest part of the delay, is transforming NASA from a lowest-bidder manager, to a hands-on organization. That took over 6 years.