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.