The EICAS is organized into display groups. Which of the following groups are included?

• A. All of the above
• B. Fuel, electrical, and environmental
• C. Engine performance
• D. Crew alerting system (CAS) messages

Answer: (A)

EICAS presents information in display groups so pilots can quickly find and interpret system status. The groups commonly shown are engine performance, fuel, electrical, environmental, and the crew alerting system messages. Engine performance covers parameters like N1/EGT and thrust, showing how the engines are behaving. Fuel shows quantities and balance between tanks. Electrical tracks the status of generators and electrical buses. Environmental covers cabin pressure and air conditioning status. CAS messages collect all alerts, cautions, and advisories that require crew attention. Since all of these categories are standard parts of the EICAS display structure, the option that includes every group is the best choice.