At what pressure does the [EHYD PX LO] annunciator illuminate?

The [EHYD PX LO] annunciator illuminates when the pressure drops to 2,400 ± 150 psi, which indicates that the hydraulic pressure is below a certain threshold necessary for safe operation. This range suggests that when the hydraulic system experiences a drop in pressure outside of the designated limits, it can lead to reduced system performance or even failure, which could compromise the aircraft's handling and safety.

Understanding this specific pressure threshold is crucial for effective aircraft operation, as it ensures that systems relying on hydraulic pressure, such as flight controls and landing gear, function correctly. Monitoring hydraulic pressure and understanding the thresholds that trigger alerts helps maintain safety and efficiency during flight operations.