What determines the priority of appearance for warnings and cautions on the E/WD in the Flight Warning System?

The priority of appearance for warnings and cautions on the E/WD (Engine/Warning Display) in the Flight Warning System is primarily determined by established priority levels. This system is designed to ensure that the most critical alerts, which can affect the safety of the flight, are presented to the flight crew first. The categorization into different priority levels allows the crew to quickly assess and respond to the most severe situations that may arise during flight operations.

For instance, warnings indicating a potential danger that could lead to an emergency situation will display before lesser caution indications that might not require immediate action. This prioritization facilitates efficient management of critical issues by focusing the crew's attention on the most pressing matters, thereby enhancing situational awareness and safety during the flight.