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• Overhead emergency lights.
• EXIT signs.
• Lavatory auxiliary lights.
• Overwing escape route lighting.
• Escape slide lighting.
EXIT signs come on if the ‐ cabin altitude gets too high.
‐ The proximity emergency escape path marking system, overhead emergency lighting, and EXIT
signs come on, if the EMER EXIT LT selector is ON, or if the purser's EMER pushbutton is
pressed.
‐ With the EMER EXIT LT selector at ARM :
• The proximity emergency escape path marking system comes on if :
‐ Normal aircraft electrical power system fails or
‐ DC SHED ESS BUS is lost.
• The overhead emergency lights come on, if :
‐ Normal aircraft electrical power system fails, or
‐ DC SHED ESS BUS fails, or
‐ AC BUS 1 fails.
• Exit signs automatically come on if :
‐ Normal aircraft electrical power system fails or
‐ DC SHED ESS BUS fails.
‐ When lighted:
• The proximity emergency escape path marking system is powered by internal batteries for at
least 12 min.
• DC SHED ESS BUS supply the overhead emergency lights and the EXIT signs.
If DC SHED ESS BUS fails, batteries inside the light fixtures power all the lights.
• DC SHED ESS BUS charge the internal batteries, if :
‐ EMER LT selector is not at ON, and
‐ The EMER pushbutton on the Purser’s panel is not pressed, and
‐ DC SHED ESS BUS is supplied.
Lavatory auxiliary lights are always on. They are supplied by 28 V DC ESS BUS.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
LIGHTS
EMERGENCY LIGHTING - DESCRIPTION
A318/A319/A320/A321 FLEET DSC-33-30-10 P 6/14
FCOM 19 AUG 10
The escape slides have an integral lighting system. The escape slide lights and overwing route lights
come on automatically when the slide is armed and the door or emergency exit is open. They are
supplied by the internal batteries.
GENERAL
Applicable to:
MSN,
The emergency lighting system has :
• Proximity emergency escape path marking systems (escape path and exit markers).
• Overhead emergency lights.
• EXIT signs.
• Lavatory auxiliary lights.
• Overwing escape route lighting.
• Escape slide lighting.
‐ EXIT signs come on if the cabin altitude gets too high, or (depending on the CIDS/CAM
programming), if the NO SMOKING signs come on.
The floor proximity ‐ emergency escape path marking is a self-luminescent system.
‐ The exit markers, overhead emergency lighting, and EXIT signs come on, if the EMER EXIT LT
selector is ON, or if the purser's EMER pushbutton is pressed.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
LIGHTS
EMERGENCY LIGHTING - DESCRIPTION
A318/A319/A320/A321 FLEET DSC-33-30-10 P 7/14
FCOM 19 AUG 10
‐ With the EMER EXIT LT selector at ARM :
• The exit markers of the proximity emergency escape path marking system comes on if :
‐ Normal aircraft electrical power system fails or
‐ DC SHED ESS BUS is lost.
• The overhead emergency lights come on, if :
‐ Normal aircraft electrical power system fails, or
‐ DC SHED ESS BUS fails, or
‐ AC BUS 1 fails.
• Exit signs automatically come on if :
‐ Normal aircraft electrical power system fails or
‐ DC SHED ESS BUS fails.
‐ When lighted:
• The exit markers of the proximity emergency escape path marking system is powered by
internal batteries for at least 12 min.
• DC SHED ESS BUS supply the overhead emergency lights and the EXIT signs.
If DC SHED ESS BUS fails, batteries inside the light fixtures power all the lights.
• DC SHED ESS BUS charge the internal batteries, if :
‐ EMER LT selector is not at ON, and
‐ The EMER pushbutton on the Purser’s panel is not pressed, and
‐ DC SHED ESS BUS is supplied.
Lavatory auxiliary lights are always on. They are supplied by 28 V DC ESS BUS.
The escape slides have an integral lighting system. The escape slide lights and overwing route lights
come on automatically when the slide is armed and the door or emergency exit is open. They are
supplied by the internal batteries.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
LIGHTS
EMERGENCY LIGHTING - DESCRIPTION
A318/A319/A320/A321 FLEET DSC-33-30-10 P 8/14
FCOM 19 AUG 10
PROXIMITY EMERGENCY ESCAPE PATH MARKING SYSTEM/EXIT SIGNS
Applicable to: MSN,
4473
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
LIGHTS
EMERGENCY LIGHTING - DESCRIPTION
A318/A319/A320/A321 FLEET DSC-33-30-10 P 9/14
　
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