Full Authority Digital Engine Control (FADEC) is an electronic system that controls an engine, allowing easy usage by the pilot, relieving workload and providing most efficient power settings through single lever operation. That being said, the pilot still has a few engine controls on the flight deck. As well as the power lever to each engine, which digitally tells the FADEC computer what power setting is required from the engine, the pilot has a master switch for each engine, and often engine mode selectors to be able to tell the engine which ECU to use, etc.

All the FADEC peripherals such as actuators, solenoids, electrical wiring, sensors, and fuel metering are also part of the FADEC system and are used for control and monitoring.