Copy of ATA 33

Wing illumination

The wing illumination lights supply light to the leading edge of the wings. At night, this lets the pilots see when ice collects on the on the wing leading edges.

Landing lights

- B737

The landing lights help the pilots to see the runway during takeoff and landing.

Landing lights - A320

Anti-collision lights

The anti-collision lights make the airplane easier to see in the air and on the ground.

B737

- Two red anti-collision lights (beacons) and

- Three white anti-collision lights (strobe).

A320

Position / NAV lights

The position lights show this information to persons in other airplanes or on the ground:

• Airplane position

• Direction

• Attitude

The left forward position light is red (port side).

The right forward light is green (starboard).

The tail position lights are white.

Taxi and runway turnoff lights

Taxi and runway turnoff lights let the pilots see the taxiway or runway during taxi.

Logo lights

The logo lights provide situational awareness for other aircraft on the airport and help showing the airline logo or emblem on the vertical stabilizer.

Instrument and panel lights

The instrument and panel lights are for the flight compartment controls and panel indications.

Instrument and panel lights supply light to the switches, selectors, and indicators on panels in the flight compartment. These are the types of panel lights in the flight compartment:

• Light plates - supply the background light for the panels in the flight compartment.

• Indicators - show the flight or maintenance crew the status of an airplane system (colour identification!).

• Instrument lights - supply light to the face of the instruments.

• Lighted push-button switches - supply control inputs to, or information for their associated systems.

Miscellaneous lights /

General Illumination

Two main lights (the rest is A/C type specific -e.g. standby compass light):

• Dome lights - The dome lights supply light to all of the flight compartment.

• Floodlights (Strip / Spot) - provide direct illumination to main panels.

Master dim and test

The master dim and test (MD&T) system lets you do these tasks:

• Do a test of the flight compartment annunciators and lighted push-button switches

• Set annunciators and lighted push-button switches to the bright or dim mode.

Cargo compartments lights

The cargo compartment lights supply light to the cargo compartment areas to aid the ground and maintenance crews.

The cargo compartment lights are in these areas:

• Ceiling of cargo compartment

• Top of cargo compartment door frame.

The cargo compartment light control switches are in the forward door frames.

Wheel well lights

The wheel well lights supply lighting to the nose and main landing gear

wheel wells.

E/E comp / Avio bay

The EE compartment lights supply light to the electronic equipment

compartments for maintenance.

Accessory Compartment Lights

The service and accessory compartment lights supply light to these areas:

- APU compartment

- Aft accessory compartment (section 48 /Frame 19)

- Tail cone compartment

Air Conditioning Compartment

B737 - The air conditioning compartment lights supply lighting for maintenance in the air conditioning compartments.

A320 - The air conditioning compartment is provided with an electrical outlet for a portable maintenance light.

General Illumination

Fluorescent lamps / LED light assemblies illuminate the passenger cabin and the entrance areas.

A Fly Dubai 737 800 with a Sky Interior.

Airbus A320 of Etihad Airways

PAX Reading Lights

Passenger reading lights supply high intensity light to each passenger seat. Each light has an ON/OFF switch.

Lavatory Lighting

The lavatory lighting system has a fluorescent lamp, an integrated ballast unit and a mirror light installed in each lavatory.

Work / Attendant Lights

The cabin attendant work-lights are high intensity lights which are installed at the attendant stations.

Passenger Signs

The passenger signs give these indications to the passengers and attendants:

• NO SMOKING

• FASTEN SEAT BELT

• RETURN TO SEAT.

The NO SMOKING and the FASTEN SEAT BELTS signs are at these locations:

• Passenger service units (PSU)

• Windscreen / Class divider

• Galley

• Lavatories

The RETURN TO SEAT signs are in the lavatories.

PAX Call

A320 - The Attendant Indication Panel (AIP) provides an attendant far call function. Its display shows dial and call information from the PA/Interphone system and other system-related information (e.g. Lav Smoke Location/PAX Calls). The AIPs are installed adjacent to the cabin attendant stations.

Area Call Panel (ACP) - gives a long-range visual indication related to system information (e.g. Lav Smoke Location/PAX Calls). The ACP has four separately controlled fields. Each field contains colored LEDs. They are visible from the front and the rear of the ACP. The four fields are separately activated to show the different system information. The LEDs flash or come on steady. They are used as a far-call facility to inform cabin attendants of passenger call, interphone call, lavatory smoke and EVAC signals.

The passenger and lavatory call light tells the flight attendant when a passenger or flight crew member needs aid or assistance.

B737 - When you push the attendant call button on the passenger service unit (PSU), the control circuit causes these indications:

• Light under the blue lens cover on the forward or aft exit locator

• High chime sound

• PSU call light.

You must push the call light/reset switch to cause the control circuit to turn off the indications.

AIP

ACP

Cabin Emergency Lights

Exit signs

Lavatory Auxiliary Lights

Floor Proximity Lights

EPSU

Exit Signs

Aisle Lights

Floor proximity lights

Slide lights

Power Supplies