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SERVICE AND CARGO LOADING LIGHTS -CARGO LOADING LIGHTS -DOOR-MOUNTED
Purpose
The door-mounted cargo loading lights give light to two areas: below and outboard of the door and the door sill area. The lights help the ground crew.
General
There are four lights on the forward cargo door and three lights on the aft cargo door. The forward door has two sill area lights and two door area lights. The aft door has two sill area lights and one door area light. The sill area lights are on the upper part of the door. The door area lights are on the lower part of the door.
Different switches control the door-mounted lights. The INTERIOR light switches (not shown) control the sill area lights. The EXTERIOR light switches (not shown) control the he door area lights.
See the lower lobe cargo compartment lights section for more information about the cargo lights (SECTION 33-37).
Physical Description
All of the door-mounted lights are the same. The lights have these parts:
*
Electrical connector
*
Fastener (2)
*
Lens assembly
* Lamp.
Training Information Point
Remove the lens assembly to replace the lamp.
NOTE: Do not touch the new lamp with your hands. Use clean gloves or lint-free cloth.
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SERVICE AND CARGO LOADING LIGHTS -CARGO LOADING LIGHTS -DOOR-MOUNTED
EFFECTIVITY BEJ ALL 33-31-00
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D633W101-BEJ Jan 05/2002
SERVICE AND CARGO LOADING LIGHTS -CARGO LIGHTS TRANSFORMER -LOCATION
Purpose
The forward and aft cargo compartment light transformers decrease the amount of power that go to these lights:
*
Interior cargo lights
*
Exterior cargo lights
*
ECS bay lights
*
Door lights
*
Sill lights.
Location
The forward transformer is in the P35 forward cargo handling accessory panel. The aft transformer is in the P39 aft cargo handling accessory panel.
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SERVICE AND CARGO LOADING LIGHTS -CARGO LIGHTS TRANSFORMER -LOCATION
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SERVICE AND CARGO LOADING LIGHTS -CARGO LOADING LIGHTS -OPERATION
General
The cargo loading lights get power from the ground handling bus. Door-mounted cargo loading lights (door and sill area) operate only when the related door is full open and a related control switch is on.
External -Cargo Loading Area Lighting
You use EXTERNAL (EXTERIOR) cargo light control switches to operate the body-mounted and the door-mounted door area lights. There is one switch for each of the cargo compartment loading areas. The switches operate only the lights in the related area. The switches are in these areas:
*
Forward cargo area uses the switch on the P43
*
Aft cargo area uses the switch on the P44
*
Bulk cargo area uses the switch on the bulk cargo light control panel (forward of the door, in the compartment).
Internal -Cargo Door Sill Area Lighting
You use INTERNAL (INTERIOR) cargo light control switches to operate the door-mounted, door sill area lights. For internal lighting, the aft and bulk cargo compartment areas are one area. The forward and aft cargo areas have three switches. The switches for the forward cargo area are in these areas:
*
P43
*
Cargo handling and interior cargo lights panel (forward of the door, inside the compartment)
* A switch that is near the main equipment center/cargo compartment access door
The switches for the aft cargo area are in these areas:
*
P44
*
Cargo handling and interior cargo lights panel (forward of the aft cargo door, in the compartment)
*
Bulk cargo light control panel (forward of bulk cargo door, in the compartment).
See the lower lobe cargo compartment lights section for more information about the cargo lights (SECTION 33-37).
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SERVICE AND CARGO LOADING LIGHTS -CARGO LOADING LIGHTS -OPERATION
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SERVICE AND CARGO LOADING LIGHTS -CARGO LOADING LIGHTS -FUNCTIONAL DESCRIPTION
Forward Cargo Exterior Light
When the cargo exterior area lights switch on the P43 is in the ON position, the forward exterior cargo door light relay energizes. This makes the light come on.
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