FADEC1/FADEC2 FAIL caution indicates which of the following?

• A. Major FADEC Failure
• B. Minor Warning
• C. Hydraulic Issue
• D. Electrical Fault

Answer: (A)

FADEC control is the brain of the engine, governing fuel flow and timing. When the system reports FADEC1/FADEC2 FAIL, it means the engine electronic control units have detected a fault that compromises the engine’s automatic control. Even though there are two FADECs for redundancy, a fault in this subsystem is treated as a major engine-control fault because it can affect performance, protection features, and safe operation. It isn’t describing a hydraulic issue or a generic electrical fault, and it isn’t a minor warning—FADEC failures are categorized as major faults requiring maintenance and handling as degraded engine control.