[ramses0]

LoL, I think aviation traceability goes down to which licensed individual installed each screw down to the date, time, hour, and minute.

Further traceability goes back into the parts inventory, where I'm not sure of the commingling requirements on something like screws, but (eg) brake pads would almost certainly be traceable to the supplier and then manufacturer.

https://www.google.com/imgres?imgurl=https%3A%2F%2Fdisciples...

[sofixa]

Supposedly, anyway. You also have the lovely incompetent folks at Boeing who can't even tell you who worked on removing a plug door and who forgot to put back the bolts holding it down. Thankfully that's a crime though, so hopefully someone (ideally both the fools who did this, and all their managers and managers' managers that cultivated such a culture to allow for such a thing to happen) will go to prison over it.