Last year it was counterfeit parts in their engines, and a while ago there was a whole scandal where a large percent of commercial planes were operating with fake parts. Obviously the crack down after the first scandal wasn't strong enough to deter them from doing it again. And again.
So long as they keep getting contracts, getting paid, they'll keep doing it.
Many people in industry are amoral and will try to get away with whatever they can, for some reason this idea seems to be rampant with Chinese vendors.
I just want to thank you for posting this part in addition to the link:
The problem has been traced back to a Chinese supplier.
I’ve started refraining from upvoting articles that are just a link. I’d at least like to know the main idea of the article and maybe some important details or the reason you’ve decided to share the article before I decide to read it. If article titles were universally better, this wouldn’t be as much of a problem.