I did not know about Blackbushe so I'll note that it is the first US buggered fuselage.
There is a major join in the area where it came apart.
f
Added note after seeing Robbreid post.
Now I remember the Blackbushe accident, so this one at OSH will be the first 1A
.
They do seem to have addressed the earlier problems with the lift/dump configuration of late.
f