725
Nose wheel falls off Boeing 757 airliner waiting for takeoff
(www.theguardian.com)
This is a most excellent place for technology news and articles.
I don't know about the regulatory side, but Boeing gutted their experienced engineering corps starting about 10 years ago. In the pursuit of profit of course. I think we're seeing the effects of that finally coming to the fore.
My understanding of the role of the regulatory agencies for stuff like this is that they can ground a model of plane if they believe there's a systemic issue. Like we saw with the MAX.