What has you believing that the PAF would not have gone through a selection process that would look at any of these issues.
Even if the J-10C was the ONLY choice the PAF would go through its checklist and the engine QA would be one of it.
Are you aware of the safety record of F-6 , J-7 or Q-5 with the PLAAF vs the PAF? (
@Deino this isn’t an indictment of the PLAAF but the evolution of where the engine technology, mitigation and standards have come from where they were)
F-6s were considered throwaway aircraft when they first landed - 300 hours and done - no rebuilds. The oldest one was 2000 hours in when the PAF finally retired it. Maintenance and procedures made the difference.
A Pakistani F-16 was lost because the technician used a Mirage part in it to cut corners. So the otherwise very reliable F-100 caught fire mid flight. Maintenance and procedures made the difference.
Yes, China is a stone wall but Pakistan is one of the few(perhaps only) that has an eye inside its R&D and whispered things to by their Chinese counterparts which they would otherwise never disclose out of fear of losing the customer. The flipside of that is that when such input is provided the Pakistani side almost always responds with “Here is what we have heard X does to mitigate this” or at the least “Let us ask around for any workarounds”.
Coming to the J-10 specifically - are you aware of how many F-14s were lost to compressor stalls? And US was never under embargo for engine technology and yet we struggled.
Yes, there were design issues with the original J-10 and those were highlighted by the PAF with multiple changes before the original FC-20 spec was provided of which many suggestions were taken by CAC to the J-10B but at that time PAF had no funds available to divert. Today, the a revised Air Staff requirement asked for additional changes to the J-10C which will take their time to implement and get the PAF’s approval.
To reiterate, a different Air Staff requirement doesn’t make the PAF J-10C(if and when it arrives) superior to the PLAAF because the their(PLAAF) Air staff requirements are wholly different in terms of their primary adversary.