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by alexpotato 693 days ago
NASA has incredibly detailed records about every piece of their spacecraft down to things like:

- material used to make a bolt

- what the torque used to tighten the bolt was

- who tightened the blot

- when it was tightened

- etc

This allows them trace back through the history of each vehicle for debugging purposes.

They also applied this to the Space Shuttle software. This article from 1996 does an amazing job of describing the process: https://www.fastcompany.com/28121/they-write-right-stuff

It's interesting how modern some of the practices described are. Plus, some of the practices (E.g. the bug rate model), from my experience, only existed there.

2 comments

  > It's interesting how modern some of the practices described are.
It should be noted that among famous NASA inventions, modern Project Management is listed among them.
A reusable aircraft that faces that sort of intense vibration, I'm not at all surprised that we need to track when the last time each bolt was checked and by whom.

(One of the things you have to watch out for is that if the torque on a nut drops for no reason, it may be a hairline crack in the bolt it's attached to)