*
Power supplies
*
Emergency dome light.
Location
There are emergency lights:
*
In the aisle ceilings
*
Near the door
*
On the center aisle seats
*
On the lavatories
*
On the closets
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BOEING PROPRIETARY -Copyright # -Unpublished Work -See title page for details.
777 AIRCRAFT MAINTENANCE MANUAL
EMERGENCY LIGHTING -INTRODUCTION
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EMERGENCY LIGHTING -EXIT SIGNS -GENERAL DESCRIPTION
Purpose
The exit sign lights come on to show where the exits are.
Location
The exit signs are on lowered ceiling panels near all the doors and in the cross aisles.
Training Information Point
You compress the lens of the exit sign to remove it and get access to the bulbs. There are twelve bulbs in each sign.
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EMERGENCY LIGHTING -EXIT SIGNS -GENERAL DESCRIPTION
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EMERGENCY LIGHTING -AREA LIGHTS -GENERAL DESCRIPTION
Purpose
The area lights give light to the aisles when the main buses do not have power. They help passengers and crew to see in an emergency.
Location
The area lights are in the ceiling:
*
In the aisles of the passenger compartment
*
In the galleys
*
Near the doors.
Training Information Point
You compress the lens to get access to the lamp. The lamp is a bayonet-style lamp. All area lights use the same type lamp.
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EMERGENCY LIGHTING -AREA LIGHTS -GENERAL DESCRIPTION
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EMERGENCY LIGHTING -FLOOR PROXIMITY LIGHTS -GENERAL DESCRIPTION
Purpose
The floor proximity lights give light to the floor to help passengers and crew find the exits.
Location
The lights are on the:
*
Center aisle seats that are next to an aisle
*
Center lavatories (not shown)
*
Center closets (not shown)
*
Center class dividers (not shown)
*
Center galleys (not shown).
Physical Description
The lights on the seats have spring clips that hold the light assembly in place. The lights on other surfaces have screws that hold the light assembly in place. The lens has tabs to hold it in the assembly.
The light is bayonet-style. There is one light in each assembly in economy class and two lights in each assembly in first and business class.
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EMERGENCY LIGHTING -FLOOR PROXIMITY LIGHTS -GENERAL DESCRIPTION
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EMERGENCY LIGHTING -EMERGENCY DOME LIGHT -GENERAL DESCRIPTION
Purpose
The emergency dome light gives light in the flight deck when the main buses do not have power. It helps the crew to see in an emergency.
Location
The emergency dome light is part of the captain’s dome light. It is above the captain’s seat.
Physical Description
The light has these components:
*
Lamp
*
Lens
*
Grill.
The captain’s dome light has two lamps. One is the emergency light system and the other is the normal lamp.
See the flight compartment illumination section for more information about the captain’s dome light (SECTION 33-11).
Training Information Point
To get access to the lamp you pull down on the grill and remove the lens. The lens has a bayonet-style mount. The lamp is a bayonet-style lamp.
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EMERGENCY LIGHTING -EMERGENCY DOME LIGHT -GENERAL DESCRIPTION
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EMERGENCY LIGHTING -SLIDE LIGHTS -GENERAL DESCRIPTION
Purpose
The slide lights give light to the slide on the outside of the airplane.
Location
The lights are on the outer surface of the airplane aft of each door.
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