Originally Posted by
Capt Scribble
Has Boeing issued any Maintenance or Crew notices since the Ethiopian accident? If not, what has prompted some countries to ground the Max. Although there is speculation on this site about a similar cause to that of Lion Air crash, I have not seen anything from official sources to confirm the idea.
You haven't seen official sources confirm it, but you also haven't seen them deny it.
Seeing two brand new planes crash in a relatively likely manner, within such a short time of each other and within two years of the plane's release. They are probably not taking any chances until it is clear that this is not the same issue.