What visual indication occurs for a Level 3 priority?

A Level 3 priority is associated with a red warning displayed on the Engine/Warning Display (E/WD). This red indicator signals an immediate threat that requires the crew's attention to ensure the safety of the aircraft. Red warnings typically indicate conditions that could lead to significant system malfunctions or emergencies if not addressed promptly.

In contrast, the other options represent different priority levels or states. A green indicator signifies normal operation or status, which does not reflect an imminent issue. Amber cautions represent advisory messages that indicate a potential problem requiring monitoring, but not the critical urgency associated with a red warning. Therefore, the presence of a red warning for a Level 3 priority serves as a clear and urgent visual cue for pilots, indicating that immediate action is necessary.