Hello

Is there any known issues with flight level change and thrust/N1 ? Or is it error between keyboard and chair ?

N1 does not go to the max. In this case N1 is stopping at 77%.

 

 

FLCH commands thrust to achieve the selected altitude in no less than 120 seconds IIRC, so for relatively small altitude changes it will not command full CLB thrust.

10 minutes ago, Wizball said:

In this case N1 is stopping at 77%.

Based upon what Simon Kelsey said above and that fact the airplane is very light (Gross Wt 247000 kgs from EICAS) I would not expect N1 to go any higher.

5 minutes ago, skelsey said:

FLCH commands thrust to achieve the selected altitude in no less than 120 seconds IIRC, so for relatively small altitude changes it will not command full CLB thrust.

Interesting.  I did try a FL CH with a bigger altitude difference, and your right, it will command full climb thrust when doing that. 

Not the behaviour im used to or expected. But a smooth logic.

Thanks for the explanation.