Originally Posted by scambo1

Just to minimize the good seniority on a crappy jet issue, FADEC is a part of every modern jet engine. FADEC is like saying "xerox machine" when you refer to a copier. FADEC, EEC and ECU are completely interchangeable in the jet engine design world, the term used is generally more dependant on the engine manufacturer than the function of the "black box." I should caveat this with many EECs and ECUs do allow for a certain level of manual override and authority.