What is the position of the wing anti-ice valves after an electrical failure?

In the event of an electrical failure on the A320, the wing anti-ice valves will default to the closed position. This is an important safety feature to prevent unintended icing conditions from affecting aircraft performance when the electrical system is compromised. The design ensures that, regardless of the current operational state, the valves automatically close, minimizing the risk of ice formation when the wing anti-ice system cannot be activated or controlled.

By defaulting to a closed position during an electrical failure, the aircraft maintains greater control over its systems and enhances safety, as an open valve could lead to potential hazards without proper monitoring and control. The mechanism is built to react to such failures intelligently, thereby preventing any adverse effects that could arise from icing on the wings during critical flight phases.

Overall, the closed position upon an electrical failure reflects the aircraft’s commitment to maintaining safety by ensuring that critical systems are not inadvertently left in a position that could compromise flight safety.