In the event of FADEC failure, can the other engine FADEC provide fuel control of both engines?

• A. Only one engine can be controlled.
• B. True
• C. False
• D. No engine control is possible.

Answer: (C)

FADEC redundancy is arranged so that each engine is controlled by its own FADEC. There isn’t a cross-connection that lets one FADEC take over fuel control for both engines. If one FADEC fails, the healthy FADEC continues to control only its own engine; it cannot manage fuel flow for the other engine. So the surviving FADEC cannot provide fuel control of both engines. The surviving engine stays under its own FADEC, while the failed engine loses automatic fuel control and would rely on appropriate fault-handling procedures.