Okay, so you are basing your statement on the removal of his name from the AVIC website.
I wanted to know if there was anything else that I had missed.
The grapevine generally very rarely comments on personnel matters unless it's attributing their title to a new development.
In the case of Qin Gang we also know the definitive statements from the government of his demotions and resignations that were a fair bit more public and official, from the horse's mouth rather than just removals of their profiles.
If we had similar information in a more official capacity for Yang Wei, then I would be more inclined to agree with you, but at least I can understand your reasoning.
I'll put it this way, one of the ways that can disprove any concern(s) would be if he shows up on the conference circuit or does a public speech of some sort. And I don't necessarily view it as a bad thing that he is no longer involved in such a public capacity at AVIC when all these anti-corruption probes are happening as a result of this Zhang Youxia fiasco. Leaving the role probably insulates him against any overzealous investigator from digging up anything that could possibly implicate him.
One comment to note on corruption in general in the pre-2012 era, in many cases corruption/bribes may have been for the greater good. As an example, to get resources for specific programs from higher leadership one might've had to grease the wheels. We can very well imagine that someone as senior as a chief designer have had to do things like this to get the program moving along faster. (This would be an example where its technically illegal but also "合情合理")
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