Originally Posted by
FLX/MCT
Anyone know the exact parameter(s) used to sense an engine failed? %N2? Just curious…
The EICAS "L/R ENG FAIL" message is primarily based on information from the FADEC (IIRC, it'll fall back to analog N2 if all digital communication with the FADEC is lost).
I don't know if any other systems use the logic from that message.