On legacy airframes, a system failure often triggered a cascade of master cautions and warnings. This required the crew to diagnose the root cause while sorting through multiple checklists. The 787 Engine Indicating and Crew Alerting System (EICAS) uses complex internal logic to filter out secondary faults.
Utilizes electro-thermal heating mats embedded in the wing leading edges, optimized via the FCOM duty-cycle tables. Power Generation and Distribution
With a grasp of the key systems, pilots then learn how the 787 communicates with them. The EICAS chapter is critical as it explains how warnings, cautions, and advisories are prioritized and displayed, which is essential for handling any situation.