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Airbus A320ceo / neo · Live schematics

System schematics

Operate the switches and introduce failures — the diagram shows where fuel, power or pressure flows and what it means for the pilot.

Unverified — check your manualText on this page is written from general knowledge. Figures marked ✓ are checked against official FAA/EASA data.See verified data

ATA 29 Hydraulic Power · Three independent 3000 psi systems. The PTU transfers power between Green and Yellow without fluid exchange; the RAT drives a Blue pump in an emergency.

Where it is

Location of Hydraulic System (Green / Blue / Yellow)
Hydraulic System (Green / Blue / Yellow)

What it looks like

Main gear — twin wheels, carbon brakes, oleo strut and hydraulic lines
Main gear — twin wheels, carbon brakes, oleo strut and hydraulic lines · illustrative image
ENG 1 pumpRATBlue elec pumpENG 2 pumpYellow elec pumpGREENBLUEYELLOWPTUGear, normalbrakes, flapsSlats, emergeneratorAlt brakes,flaps, cargodoors

Controls

Engine 1

Engine 2

Yellow ELEC PUMP

PTU

RAT

Inject failures

What this means

  • All three systems pressurised.

How it works

  1. Three independent systems — Green, Blue, Yellow — each at 3,000 psi with its own reservoir.
  2. Green is powered by an engine 1 pump; Yellow by an engine 2 pump and an electric pump; Blue by an electric pump.
  3. The PTU links Green and Yellow mechanically, so one can pressurise the other without mixing fluid.
  4. The RAT drops into the airflow in an emergency and drives a Blue pump.

How the parts work together

  • Each flight control surface is powered by at least two systems, so losing one changes little.
  • The PTU starts automatically if the pressure difference between Green and Yellow exceeds about 500 psi.
  • Losing two systems puts the flight controls into alternate law and needs gear gravity extension.

What each part does

Click a box in the diagram or a part below to highlight it.

EDUCATIONAL USE ONLY. Content is summarised from manufacturer documentation for learning. It is not approved flight or maintenance data. Always use the current, aircraft-specific POH/AFM, FCOM, QRH, AMM and operator procedures.