What does the Airbus A320 overhead panel do, and how do you use it?
The Airbus A320 overhead panel is the cockpit’s system-management area. In real flying and in high-fidelity simulators, you use it to control power, ADIRS, fuel, bleed air, lighting and anti-ice. For normal operation, most switches stay in AUTO; you mainly establish power, configure essentials and confirm the ECAM shows a clean aircraft.
What is the overhead panel for on the A320?
The overhead panel manages aircraft systems rather than pitch, roll, speed or navigation. On an Airbus A320, it groups the electrical, fuel, hydraulic, pneumatic, air-conditioning, fire, lighting and anti-ice controls above the crew.
In a flight simulator, that matters because one missed overhead action can leave you with a dark cockpit, unaligned navigation or engines that will not start. The overhead tells the aircraft what state you want; our ECAM guide explains how the aircraft reports the result. If you want the whole layout in context, our wider A320 cockpit guide shows how the overhead fits with the FCU, pedestal and displays.
The key Airbus idea is the dark cockpit. In normal operation, many overhead switches stay in AUTO, and abnormal conditions show up as lights or ECAM messages. A mistake we see constantly is simmers treating the panel like a bank of simple on/off switches and forcing systems on that should be left alone.
Exact labelling varies a little between A320 variants and between simplified and study-level add-ons, but the logic is the same.
Which A320 overhead switches do sim pilots actually use?
Most sim flights only need a small part of the A320 overhead panel, but those few controls are critical.
| Overhead area | What it controls | Normal sim use | Common mistake |
|---|---|---|---|
| Electrical power | Batteries, external power, APU generator | Wake the aircraft and give the avionics a stable power source | Leaving the aircraft on batteries only |
| ADIRS / IRS | Navigation alignment for attitude, heading and route tracking | Select NAV early and let it align | Trying to taxi or use autopilot before alignment finishes |
| Fuel | Tank pump control | Normally leave pumps on for standard operation | Starting with pumps off in deeper add-ons |
| Bleed air and APU | Engine-start air source and cabin air supply | Start the APU if needed, then configure bleed air as your model expects | APU running but no usable bleed air |
| Air conditioning, pressurisation, hydraulics | Automatic system management | Mostly leave them in their normal automatic positions | Forcing manual states without a checklist |
| Lights and anti-ice | Exterior lighting, signs, icing protection | Use by phase of flight and weather | Turning anti-ice on permanently or forgetting the beacon before start |
How do you use the overhead panel during startup?
You use the A320 overhead panel in a flight simulator by setting up power first, aligning the navigation system early, and only then moving to engines and avionics setup.
- Power the aircraft. Turn the batteries on, then connect external power if it is available. If not, use the overhead APU controls to start the APU and wait for its generator to become available.
- Set the ADIRS to NAV. Do this early because alignment takes time. In deeper add-ons, heading, attitude and route guidance will not behave properly until alignment is complete.
- Configure normal services. Set fuel pumps as required by your model, then set signs and lights for the phase of flight. Before engine start, that usually includes the anti-collision beacon.
- Prepare bleed air. If you are using the APU for engine start, make sure the APU is not just running but that APU BLEED, or the equivalent air source logic in your add-on, is configured the way the aircraft expects.
- Check the ECAM before going further. If major cautions are still present, fix them now rather than trying to continue into engine start or taxi.
For a realistic cold-and-dark sequence, our step-by-step A320 overhead startup walkthrough in MSFS shows the practical flow. Once the aircraft has power and the ADIRS are aligning, the next task is usually programming the A320 MCDU/FMS.
Do you turn everything on?
No. The normal Airbus technique is not to switch every system on manually; it is to place the aircraft in its normal automatic state.
- Leave AUTO selected where the checklist expects AUTO. For many systems, AUTO means normal, while ON or OFF means you are overriding the logic.
- Be careful with guarded switches and fire controls. They are not part of a normal startup flow and can trigger warnings, failures or unrealistic states in detailed add-ons.
- Do not chase every light. Some lights mean a source is available, not that something is wrong. Read the switch label and cross-check the ECAM before changing anything.
- Treat simplified A320s differently. Default aircraft may automate parts of the fuel, bleed or electrical logic. If a switch appears to do nothing, that is often a modelling limit rather than pilot error.
Why isn’t the overhead panel doing what I expect?
Most A320 overhead-panel problems in a simulator come down to three things: no proper power source, incomplete ADIRS alignment, or the wrong bleed-air setup for engine start.
Why is the cockpit still dark?
Batteries alone often give you only limited power. If the screens stay dark or drop offline, check that you actually have external power connected, an APU generator available, or engines supplying the buses.
Why do I have no heading, route or autopilot guidance?
The ADIRS selectors are usually the culprit. Set them to NAV early and wait for full alignment; some add-ons also expect position confirmation through the MCDU before navigation settles.
Why won’t the engines start?
The engine master switches are not on the overhead, but the air source usually is. If the APU is running without the correct bleed configuration, or if another valid air source has not been selected, the start sequence may fail or behave oddly.
Why do warnings stay on after startup?
That usually means a switch has been forced out of its normal state, or a basic item such as a fuel pump or pack is not where the checklist expects it. Use the ECAM to read the actual system status instead of guessing from the lights alone.