Yes indeed you are correct and I did remember about the US air and other possible PCU problems I just plain forgot to add this before my brain fart, but thanks anyway
I believe that the flap tracks on the NG weren't good enough when they first designed because flap 40 position had too much axial movement.
Yes, all the NG flap and slat-tracks had to be replaced, because the bearings had seized.
And now all the pickle-forks should be replaced.
The NG was not as well engineered as the Classic, and the Max even less so.
As an aside, I thought that video was quite accurate, and less sensationalist than the title.
Silver