[QUOTE=FGD135;9081079]GTang,
If this is what you see when doing a static engine run, then it can only be an instrumentation fault. It is physically impossible to get a further rise in those parameters without the Ng also further increasing (in the case of a static engine run). You may be seeing the indicated Ng cease rising, but the actual Ng must still be rising
Completely incorrect. If the wrong class ngv is installed you can have itt and Tq within parameters and a low n1. And if they changed the ngv recently this may be the problem. Once again look at your trends. It will tell you the problem