"To be a true, 100%, Full Authority Digital Engine Control, there must not be any form of manual override available. This literally places full authority to the operating parameters of the engine in the hands of the computer. If a total FADEC failure occurs, the engine fails."
True or False?
True,
The answer is in the question "Full Authority Digital Engine Control" full means it controls everything. However it is not as simple as that, there are many paths for backup.
Tristar 500