What does the green ICE advisory message indicate?

The green ICE advisory message indicates that the ice protection system is active and functioning as intended. This message serves as a status indicator, confirming that the aircraft's systems designed to prevent ice formation, which could interfere with aircraft operation and safety, are operational and working effectively.

When the ice protection system operates correctly, it ensures that critical components, such as wings and control surfaces, maintain optimal performance under potentially icy conditions. This is vital for flight safety in environments where ice formation is a risk. The green advisory acts as reassurance for pilots that they can operate the aircraft safely within these conditions.