What triggers the automatic crossflow function in fuel management?

The automatic crossflow function in fuel management is triggered by a fuel imbalance of more than 200 pounds. This mechanism is designed to ensure that both fuel tanks are equalized to maintain aircraft stability and performance. An imbalance of this size indicates that one tank has significantly more fuel than the other, which could affect the aircraft's center of gravity and handling.

This crossflow feature plays a critical role in managing fuel distribution and ensures that the aircraft operates safely and efficiently. By automatically redistributing fuel to balance the tanks, the system helps prevent potential issues that could arise from uneven weight distribution.

While other options mention specific circumstances or valve operations, they do not specifically address the condition that activates the crossflow function as directly as the fuel imbalance criterion does.