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I can't find a source, but I have heard from an engineer friend on the inside that originally, Boeing's hubris led them to not engineer a way to unload the hype

I can't find a source, but I have heard from an engineer friend on the inside that originally, Boeing's hubris led them to not engineer a way to unload the hypergolic propellant once loaded. This was because it should just load and launch... which obviously encountered problems when they had a scrub that required destacking a few years ago. While they frantically created a way to unload the propellant at the time, this would have been after the decision to not run a load, sit, unload test.

nordsieck 2y ago
> I can't find a source, but I have heard from an engineer friend on the inside that originally, Boeing's hubris led them to not engineer a way to unload the hypergolic propellant once loaded. From what I understand, most of the hypergolic propellant is carried onboard the service module, which was designed and manufactured by L3 Harris (nee Aerojet Rocketdyne). Of course, the responsibility for the entire system still rests with Boeing.