Which scenario would activate the L/R WING TANK OV PRESS annunciator?

The L/R WING TANK OV PRESS annunciator is activated when there is a significant pressure differential within the fuel tank system. Specifically, when the pressure differential exceeds 3.5 +/- 0.5 psi, it indicates that there is an imbalance in pressure that could lead to potential issues with fuel delivery and management in the wings. This scenario signals that the system is not operating within the designed parameters, which could affect fuel flow and overall aircraft performance.

Understanding pressure dynamics in the fuel tanks is critical for maintaining efficiency and safety during flight. A pressure differential that is too high could indicate a blockage or an obstruction in the fuel system, making it essential for the crew to be alerted to such a condition. This proactive measure helps in taking corrective actions to ensure the aircraft operates safely and effectively.

By recognizing that the annunciator is designed specifically to alert pilots when the pressure differential is outside of acceptable limits, it illuminates the importance of tank pressure management in aviation operations. Other options, such as low pressure in the tank, fuel leakage detection, or an empty fuel feed chamber, relate to different types of alerts or indicators, but not specifically to the conditions that would trigger the L/R WING TANK OV PRESS light.