The report about the missing bolts wasn't surprising. I said and posted the exact same thing by watching a 25 second tiktok video.
Why it happened happens everyday across all industries. Boeing as the physical owner of the aircraft at the time failed as the dudes who did a closeout inspection. Spirit as the contractors said what do those Boeing fucks know. We fixed the repair. We reinstalled the outer cover and bolted it in. New Boeing guy comes in and says well they installed the door. They must have reinstalled the bolts. Looks good to me.
In oil and gas, the work in confined spaces stuff like that I bet occurs often than not. A guy enters the space to do a repair. He leaves. Says I'm done. Confined space dude said well he's done. Let's close the vessel out. 3 hours later QA guy comes and says hey I need to QA this. Other shift says they bolted up that space someone else must have already done it. QA guy says well shit, if they closed it up it must be done. QA guy leaves for a different project. Documentation is so fucking important but people aren't willing to open stuff up again because of time constraints and rework which leads to shit like this.