Under what condition does the fuel balancing system stop trying to balance the fuel?

The fuel balancing system is designed to maintain an even distribution of fuel across the aircraft's fuel tanks. It actively monitors the fuel levels and adjusts the flow to achieve balance. The condition under which the fuel balancing system stops its operation is significant for pilots to understand as it impacts aircraft performance and safety.

A greater than 30 lbs imbalance for 2 minutes is the threshold that signals the fuel balancing system to cease its efforts to balance the fuel. This is based on established parameters that determine the operational limits of the system. When the recorded imbalance exceeds this limit for the specified duration, it indicates a persistent state that may be beyond the correction capacity of the balancing system, either due to mechanical failure or other related issues.

Thus, allowing the imbalance to persist beyond these limits without intervention may lead to potential operational hazards, affecting the aircraft's performance. Recognizing this threshold is crucial for pilots to ensure they adequately monitor fuel distribution and take corrective actions if necessary.