Which system provides pneumatic pressure for thrust reverser actuators?

Which system provides pneumatic pressure for thrust reverser actuators?

• A. Hydraulic system
• B. Electrical system
• C. Fuel system
• D. The Engine Bleed Air System

Answer: (D)

Pneumatic pressure for thrust reverser actuators comes from the Engine Bleed Air System. This system taps high‑pressure air from the engine compressor, conditions and regulates it, and routes it to pneumatic actuators that drive the thrust reverser mechanism. In this setup, the actuation relies on compressed air rather than oil, electricity, or fuel. Hydraulic systems use oil under pressure, electrical systems power electric actuators, and the fuel system handles fuel flow—none of which provide the pneumatic air needed to operate these reverser actuators.

Pneumatic pressure for thrust reverser actuators comes from the Engine Bleed Air System. This system taps high‑pressure air from the engine compressor, conditions and regulates it, and routes it to pneumatic actuators that drive the thrust reverser mechanism. In this setup, the actuation relies on compressed air rather than oil, electricity, or fuel. Hydraulic systems use oil under pressure, electrical systems power electric actuators, and the fuel system handles fuel flow—none of which provide the pneumatic air needed to operate these reverser actuators.