AIRPLANE
OPERATIONS
MANUAL
LIGHTING
REVISION 24
2-06-20
Page
1
Code
01
EMERGENCY LIGHTING
The emergency lighting consists of internal and external lights that
provide proper illumination for emergency cabin evacuation. These
lights are powered by four dedicated batteries charged through the
Essential Bus. Batteries power is sufficient to supply all internal and
external emergency lights for approximately 15 minutes.
The exterior emergency lights installed are as follows:
− Two lights installed on each side of the wing-to-fuselage fairing in
order to illuminate the wing escape route and the ground area.
− One emergency light installed in the main door and in the service
door provides illumination of the external main door and service
door areas, when the door is open.
Internal emergency lights consist of the cockpit light, aisle lights, main
door lights, galley service door lights, overwing emergency exit lights,
floor proximity lights and EXIT signs as follows:
− Cockpit light: This light is located on the cockpit ceiling to provide
general cockpit emergency illumination.
− Aisle lights: Four dome lights are located along the aisle for general
emergency cabin illumination.
− Main door, galley service door and overwing emergency exits lights:
Four lights are installed for the purpose of illuminating the
passageway leading from the main aisle to each of the exit
openings.
− Floor proximity emergency lights: Either electroluminescent or
photoluminescent strips are installed along the passenger cabin
floor to provide a means of identifying the emergency escape path
even in conditions of dense smoke.
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