Hi Denti,
there is only a time limit for unreduced TO thrust in the limitations chapter, none for GA thrust,
Errrrrr, what does MCT stand for?
So if your thrust (during the Take off or GA or Climb or during level flight or whatever) is greater than MCT, how long do you think your procedures allow you to keep it there?
What other name would you prefer to give to a thrust setting above MCT?