Where is the hydraulic engine-driven pump (EDP) typically located?

The hydraulic engine-driven pump (EDP) is typically located on the engine accessory gearbox. This placement is key because the accessory gearbox, which is usually mounted on the engine, provides the necessary mechanical power for the pump to operate. By having the pump situated in this area, it can efficiently draw the hydraulic fluid needed to supply the hydraulic systems of the aircraft, such as landing gear, brakes, and flight control systems.

Additionally, this location allows for a more compact design, minimizing the need for long hydraulic lines, which could introduce potential points of failure or added weight. The integration of the EDP within the accessory gearbox aligns with the overall design philosophy in aviation, where efficiency and reliability are crucial. Thus, the correct answer reflects standard aviation engineering practices regarding the placement of hydraulic components.