Quote:
Actually the FADEC can override the pilot if it decides a command is wrong in a given set of circumstances
Could you give an example please?
The FADEC doesn't judge the pilots action as right or wrong. It ensures that the engine runs without damaging itself while at the same time judging the validity of the inputs from anywhere in the system. If the pilot provides a valid input the FADEC will follow. However if an engine limit is reached the FADEC will react to protect the engine (typically by metering fuel to achieve the last commanded thrust).
However in the case of a redline exceedance the FADECD may latch at idle and not respond futher unless all power to mit is reset.
Your mileage may vary so please consult the individual manuals