FLIGHT COMPARTMENT ILLUMINATION -FLOODLIGHTS -FUNCTIONAL DESCRIPTION
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INTEGRAL PANEL LIGHTS -INTRODUCTION
Purpose
The integral panel lights give light to the switches, selectors, and indicators on the panels in the flight deck.
Location
There are integral panel lights in the lightplates on these panels:
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P11 overhead CB panel
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P5 overhead panel
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P7 glareshield panels
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P3 right forward panel
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P14 right sidewall panel
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P16 right oxygen mask panel
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P8 aft aisle stand panel
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P18 MAT/second observer panel
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P10 control stand
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P9 forward aisle stand panel
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P15 left oxygen mask panel
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P13 left sidewall panel
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P1 left forward panel
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P2 center forward panel
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P55 glareshield center panel.
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INTEGRAL PANEL LIGHTS -INTRODUCTION
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INTEGRAL PANEL LIGHTS -PHYSICAL DESCRIPTION
Physical Description
The lights are part of the lightplates. Most of the lights are LEDs. There are some incandescent integral panel lights. The front of the lightplates have etched letters and cutouts for selectors and indicators. The backs have an electrical connector and a circuit board.
Training Information Point
If there is not enough light that comes from a lightplate, replace it.
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INTEGRAL PANEL LIGHTS -PHYSICAL DESCRIPTION
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INTEGRAL PANEL LIGHTS -ANNUNCIATOR LIGHTS
Purpose
The annunciator lights give the flight or maintenance crew status, caution, or warning information about an airplane system.
Location
The annunciator lights are on the P5 overhead panel and the P8 aft aisle stand panel.
Physical Description
The annunciator lights use light emitting diodes (LEDs). Each light has these components:
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Display module
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Mounting sleeve
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Connector
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Housing
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Spring.
Training Information Point
To remove a display module you push on the surface of the display module to compress the spring. This will release the module. Pull the module straight out to remove it. Make sure you apply equal pressure on the surface of the display module when you push it.
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INTEGRAL PANEL LIGHTS -ANNUNCIATOR LIGHTS
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INTEGRAL PANEL LIGHTS -LIGHTED PUSH-BUTTON SWITCHES
Purpose
Lighted push-button switches give control inputs to their associated systems. They can also give information on system status.
Location
There lighted push-button switches on the P5 overhead and P9 forward aisle stand panel.
Physical Description
There are two kinds of push-button switches: momentary action and alternate action.
The lighted push-button switches have these components:
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Switch guard (not all switches) (not shown)
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Cap module
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Switch module
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Housing.
Training Information Point
To remove the lighted push-button switch, pull the cap module and turn the cap module counterclockwise and pull again. This will release the switch module from the panel.
To install the switch make sure the green lines on the top of the switch align before you install the switch. Once this is done, insert the switch into the panel and turn the cap module clockwise.
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