"Teams in Seattle and Washington, D.C are working on this. A source within the federal government says FAA inspectors were excited and happy to get the call from Boeing.
The source says they are "...elated that the bloodline of safety is alive at Boeing." That same source worries about how economic concerns for Boeing impact safety."
That reads as if the FAA had/have doubts about the bloodline of safety at Boeing - then the last sentence doubt the CEO's public statements on safety at Boeing.
The retiree - seems to think it is pretty urgent - even a grounding of a small number of NG's would create a serious issue for Boeing - the FAA will need to be VERY transparent with the other regulators over this, especially if the cracking is due to some of the manufacture allegations floating around.
The retired engineer tells KOMO the cracks were really surprising, used an expletive, then said, "This is not good news," and added, "It's really urgent to investigate."