What is EICAS commonly used for in aircraft systems?

EICAS, which stands for Engine Indication and Crew Alerting System, is primarily utilized to provide critical information regarding the status of various aircraft systems, especially those related to engines. This system is designed to enhance situational awareness for the flight crew by providing real-time data on engine parameters, system performance, and alerting for any abnormalities or failures. Through visual displays, the crew can monitor factors such as engine thrust, temperature, fuel levels, and other vital operational metrics, enabling them to make informed decisions regarding aircraft operations.

The focus of EICAS on engine and system status directly supports safe aircraft operation, making it an indispensable part of modern aviation systems. This contrasts with the other options, which pertain to functionalities or systems outside the primary scope of EICAS.