I know, but no one cares who’s responsible at the moment. What people care about is that they read a new article about Boeings planes endangering passengers every 3 days. So while Delta is most likely at fault, Boeing is gonna take the hit to the company image. That’s why I was specifically speaking about the Boeing PR team. Those guys and the crisis managers won’t be able to catch a break for a loooong time.

I don't think we have enough information to say whether it's a Boeing thing or not. The reason I say that is, that my understanding is some maintenance and repair operations will be performed by Boeing, or Boeing appointed subcontractors. What we may never find out is whether there was any work done on, or requiring access via the nose wheel area, and whether it was performed by Boeing/Boeing subcontracted technicians.

But, as I said in my other comment. This will be an ongoing problem where every Boeing plane issue will be reported now and unless announced by the operator or Boeing themselves, we'll never know whether it was a Boeing maintenance problem or just neglect by the operator.

I would expect this to be a maintenance fail.

They didn't say why it fell off yet. It might be a fatigue issue.