Lonewolf_50:Ages ago, I operated T700 engines that used ECU's (and the new ones now have FADEC's, DECU's, and BFD sez I). Black Hawk / Sea Hawk / S-70 family of helicopters. The nice thing about ECU's and DECU's and FADECs is how well they tune/trim fuel flow to keep the engines running smoothly and at best efficiency.
We had a function that was more or less a manual override called "ECU lockout." This allowed the non flying pilot to use the power control lever to bypass the ECU / DECU / FADEC. The engines would be less responsive, sure, but they didn't lose fuel feed.
Thanks for that Wolf, I was recently discussing this A-400 incident with a current HH-60 pilot and he said the same thing- they were comforted to know that they could mash the levers forward and bypass the electronics/FADEC if need be- a mechanical bypass. Likely part of the legacy inherited from the original post-Vietnam battlefield helicopter requirements.