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Flight Crew Operating Manual
CSP C--013--067
1. SERVICE AND MAINTENANCE LIGHTING
Service lighting is provided for the cargo compartments and external loading area.
Maintenance lighting is provided for the landing gear bays, APU compartment, aft equipment
compartment and the underfloor avionics compartment. <2046>
A. Service Lighting
Two lights illuminate the forward cargo compartment. The forward cargo compartment
lights are controlled by a switch located at the inside forward edge of the forward cargo
door opening. Activation requires a weight-on-wheels signal to ensuring that the lights
are off when the aircraft is in flight.
Two lights illuminate the aft cargo compartment. The aft cargo compartment lights are
controlled by a switch located at the inside forward edge of the cargo door. Activation
requires a weight-on-wheels signal to ensuring that the lights are off when the aircraft is
in flight.
External loading area lighting consists of a forward cargo compartment loading area
light and an aft cargo compartment loadng area light. The lights are designed to
illuminate the cargo compartment loading areas. <2046>
The forward cargo compartment loading area light and switch is installed within the
forward cargo compartment. The light illuminates the loading area and the ground
immediately below the loading area, when the forward cargo door is open. <2046>
The aft cargo compartment loading area light is installed under the left engine pylon
and angled to illuminate the loading area and the ground immediately below the aft
cargo door. The light switch is located inside the aft cargo compartment. <2046>
B. Maintenance Lighting
Six flood lights are installed down the length of the underfloor avionics compartment.
The lights are controlled by a switch located in the compartment.
Two lights and a control switch are installed in the aft equipment compartment.
Two lights and a control switch are installed on the APU rear bulkhead to illuminate the
APU compartment area.
Two high intensity halogen lights are installed in each main landing gear bay. Each
light has a control switch located next to it. A single high intensity halogen light and
switch is installed in the nose landing gear bay.
NOTE
At this time, the main landing gear maintenance lights
have been disabled through SB670--31--003.
Vol. 1 17--40--2
LIGHTING
Service and Maintenance Lighting Sep 09/02
Flight Crew Operating Manual
CSP C--013--067
C. System Circuit Breakers
SYSTEM SUB--SYSTEM CB NAME BUS BAR CB
PANEL
CB
LOCATION
NOTES
Maintenance LIGHTS
MAINT DC BUS 1 1 G10
Service and
Maintenance
LIGHTS FWD
SERV M1
Service LIGHTS AFT
SERV
DC SERVICE 2 M2
SERV AREA M7
Vol. 1 17--50--1
LIGHTING
External Lighting REV 3, May 03/05
Flight Crew Operating Manual
CSP C--013--067
1. EXTERNAL LIGHTING
External lighting consists of landing, taxi, navigation, beacon, anti-collision strobe, logo and
wing inspection lights. Control of the landing and taxi lights is provided by switches on the
LANDING LTS panel located on the overhead panel. All other external lighting is controlled
by switches on the EXTERNAL LTS panel, also located on the overhead panel. <1020,1021>
A. Landing and Taxi Lighting
One landing light is installed in the leading edge of each wing and one is installed on
the nose landing gear. The taxi lights are installed inboard of the wing landing lights, in
the same wing compartments. The taxi lights also serve as recognition lights.
The nose gear landing light is installed on a bracket on the nose gear and is designed
to illuminate the ground during landing and take-off. Activation requires a gear
downlock signal to prevent the light from being on when the landing gear is retracted.
The wing landing lights and taxi lights are high intensity discharge lamps. The landing
lights are controlled by the LEFT, RIGHT and NOSE landing light switches on the
LANDING LTS panel. The taxi lights are controlled, separately from the landing lights,
by the RECOG/TAXI LTS switch on the same panel.
Landing and Taxi Lights
Figure 17---50---1
TAXI / RECOGNITION LIGHT
LEFT
LANDING
LIGHT
RIGHT
LANDING
LIGHT
NOSE LANDING LIGHT
TAXI / RECOGNITION LIGHT
LANDING LTS
Used to control
landing lights,
together with taxi /
recognition lights.
RECOG TAXI LTS
Used to control taxi /
recognition lights,
without the use of
landing lights.
Landing Lights Panel
Overhead Panel
Vol. 1 17--50--2
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