[tyingq]

> It means people were careless and sloppy during assembly.

Maybe. Could also be incorrect torque specs, bad parts, unexpected vibration in that area, etc.

Edit: Yes, none of these are good either. Just saying there are many possibilities.

[hmottestad]

Those don’t sound very reassuring either. What’s to say that this is the only bolt with incorrect torque spec, or if this part is bad why not others, and if bad parts are not being caught during quality control then what other parts will be next to fail prematurely? And if there are unexpected vibrations in that area, why wasn’t it discovered during test flights? What other vibration issues would they not have accounted for if they weren’t capable of detecting this one?

[hypothesis]

To be fair, I read recently that another issue with MAX 7 was discovered through flight testing. The issue is that now Boeing wants to exempt plane from safety rules…

[hmottestad]

The de-icing button issue?