Definition
An integrated electronic display system used primarily on Boeing transport-category aircraft that continuously monitors engine performance parameters (such as N1, N2, EGT, fuel flow, and oil pressure) and presents crew alert messages for system faults, cautions, and warnings on dedicated cockpit displays.
Plain English
A pair of cockpit screens that show how the engines are running and flash up messages to warn the crew when something on the aircraft needs attention.
Context Anchor
Seen in aircraft with electronic flight displays, especially larger turbine aircraft, during engine start, flight, shutdown, and maintenance checks.
Derivation
The name is a straight description of the system's two jobs: indicating engine condition and alerting the crew to abnormalities. It was introduced by Boeing in the early 1980s as part of the move from analog gauges to the 'glass cockpit.'
Why Pilots Care
Provides immediate awareness of engine issues so pilots can take corrective action before a problem escalates.
Intuition Check
EICAS does not control the engines by itself. It displays engine information and gives alerts so the crew can make the right decision.
Example Sentence 1
Shortly after takeoff, the EICAS displayed an amber caution message indicating low oil pressure on the right engine.
Example Sentence 2
Before takeoff the crew checked the EICAS for any engine parameter exceedances.