The ACARS discussion was introduced by a Freeper, not the article. That does not necessarily indicated sloppy reporting. It seems clear that US inspectors are referring to something different.
I did NOT say that this WSJ report was based on ACARS data!!! And yes, the WSJ did NOT even bother to identify where their anonymous source for this engine data came from which helps prove my point that this WSJ article IS sloppy journalism.
But, I did read the Marketwatch version of the WSJ article instead (thanks ElkGroveDan post #14):
And also read post #112 (thanks again Drago!)