Starting the Aircraft

This guide will assist you with starting your aircraft. It includes images to assist you with understanding the locations of all buttons and switches.

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Chapters / Phases

This guide will cover these chapters in order:

1. Overhead Panel
2. Main Panel

Prerequisites

The aircraft is in a cold and dark state at a gate.

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Cockpit Preparation

To start off, we will begin by doing a few pre-checks in all areas of the cockpit to ensure the aircraft is in a normal position before turning on the batteries.

We begin by looking down at the bottom pedestal.

• Place the Parking Brake handle in the ON position
• Ensure the Speed Brakes have been disarmed/retracted
• Flaps are retracted
• Weather Radar is switched off
• Engine Masters 1 and 2 are in the OFF position
• Engine Mode selector is set to NORM
• Thrust Levers are idle

We then direct our attention to the main panel and make sure the following is set:

• Gear Lever is down

Then we look up at the overhead panel. Make sure the following are in the set position before moving on to starting the aircraft:

• Wiper selectors are in the OFF position

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Overhead Panel

Electrical section

Batteries

We begin with turning on batteries BAT 1 AND 2. We will hear chimes indicating the batteries are on.

Batteries only power a small part of the aircraft. For the rest, either ground power, APU or a running engine is required.

Ground Power

If ground power is available, we should see a green AVAIL light on the EXT PWR button. Push on this button to give power to the aircraft.

Flight Warning System Initialization

The Flight Warning System (FWS) is a system that monitors the aircraft and alerts the crew of any abnormalities. The FWS initializes as soon as AC Bus power (External Power or APU) becomes available.

The initialization takes about 50 seconds and is indicated by the FWS FWC 1+2 FAULT message on the ECAM. The message will disappear, and various alarms may play once the initialization is complete.

Some cockpit setup steps should not be done before this initialization is complete. Especially, the fire tests should not be done before this initialization is complete.

APU Fire Test

Before starting the APU, we should do a fire test. This is done by pressing and holding the TEST button on the fire panel.

If external power is available, the fire test will light up the Fire Extinguish button and the Squib Discharge button on the fire panel, and the ECAM will show the appropriate warnings.

If external power is not available at this point, we do a battery only fire test. In this case, only the fire panel buttons will show the test lights. The ECAM remains dark.

APU

We now start the APU. Without external power, this will provide us with electrical power to set up the aircraft. The startup typically lasts about 1 minute.

To do this, we simply push on the APU MASTER SW and START. The APU should be on within one minute.

Real World APU and A/C Start Procedure

The above process is a simplified version of how real-world airlines start up the APU (documented in their SOP - Standard Operating Procedures).

Here is a description of an actual, real-world procedure of a well-known airline.

• Check A/C Packs are OFF before powering the aircraft
• Set APU MASTER switch to ON
• Press APU START
  • The APS3200 APU equipped on the A32NX is able to activate the start signal during its self-test sequence after power-up, so there is no need to wait after pressing the master switch. Some A320s are equipped with a different APU that requires approximately a 3-second wait before the start button becomes operative.
• Wait until APU START button shows "AVAIL" (or check on lower ECAM APU page)
• Wait 1 min (use CHRONO to time this)
• Set APU BLEED to ON
• Wait 1 min (use CHRONO to time this)
• Set PACK 1 to ON (due to COVID, many airlines require both A/C PACKS to be ON)

The two waiting steps are to avoid any APU oil fumes to get into the air conditioning.

Crew Oxygen Supply

After powering the aircraft, we turn on the crew oxygen supply by pushing on the button, diminishing the white OFF light.

ADIRS alignment

To align the Inertial Reference System (or IRS), we turn the 3 knobs to the NAV position. This will then start the IRS alignment, for which we can view the progress on the ECAM display.

Exterior Lighting

To indicate that the aircraft is powered from the exterior, we turn on the NAV & LOGO light.

Following this, we set the STROBE light to the AUTO position.

Interior Lighting

Cabin

We can turn on a few lights to help with visibility inside if it is too dark inside the cockpit.

• The DOME light has 3 settings to choose from. We can set it into the OFF position, the DIM position, or even the BRT position.
• The OVHD INTEG LT will allow us to see the outlines of the overhead panel. Turning the knob will adjust its brightness.

Passenger Signs

• Seat belts sign - Set to ON
• No smoking sign - Set to AUTO
• Arm the emergency exit lights - Set to ARM

Cabin Pressure

Looking up just a bit, we find the LDG ELEV knob. This simply means the landing elevation, which should be in the AUTO position.

Cabin Temperature

Managing the temperatures of the cabin is necessary as well. Simply rotate the 3 knobs as needed.

Hydraulic and Fuel Section

Looking up at the hydraulic panel, we ensure that there are no white lights visible.

Just below the hydraulic panel, we find the fuel panel. Turn on all 6 fuel pumps until the white OFF light is no longer visible.

ENG Fire Test

To perform an engine fire test, hold down the TEST button for each of them for 5 seconds minimum to ensure the lights and aural warnings are working as expected. Checking the ECAM during the test will also show if the ECAM is performing as expected during a fire.

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Main Panel

Displays

The brightness for each display can be adjusted to make them more readable.

For the PFD and ND, the knobs are in the same location. Look left (or right when in first officer seat) of the PFD and find the brightness knobs for them. Simply turn both knobs as required.

For the ECAM upper and lower display, look just in front of the throttles and find the brightness knobs. Just like the PFD and ND knobs, rotate them as required.

For the ISIS display brightness (just left of the upper ECAM), use the + and - buttons until the brightness is suitable. While we are at the ISIS display, set the current QNH.

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Radio Panel

Looking down at the radio panel, set the RMP 1 to the active ATIS frequency and set the standby frequency to the ground frequency.

After setting correct frequencies, locate the BARO reference on the glareshield. We can set the barometer to either inHg or hPa by turning the gray inner selector behind the knob. For this flight, ensure that we are set to QNH. This can be changed by "pushing" on the BARO knob (the tooltip will have an upwards arrow).

Just below the barometer reference, turn on the FD. A green light indicates it has been turned on.

ECAM Fuel Page

Verify on the Upper ECAM that your aircraft has enough fuel for the flight.

If we do not have enough fuel for the flight, we can refuel via the flyPad EFB Fuel Page .

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At this point, we would have completed 5/7 task on the Before Start section on the FlyByWire A32NX checklist.

This concludes the Starting the Aircraft guide.

Continue with Preparing the MCDU.