Learjet 60 - Baggage Compartment Light; Entry Light; Overhead Lights

Learjet
60

Pilot's
Manual
OVERHEAD LIGHTS
General cabin lighting is provided by cold-cathode, fluorescent lighting
recessed in the cabin convenience panel .
The
lights are illuminated
through
seven inverter units which operate
on
28 VDC
supplied
through the 10-amp CABIN ITS circuit breaker on the pilot's circuit
breaker panel . On some aircraft, the lights are controlled through three
membrane-type switches located near the entry door . One switch pro-
vides the on/off function while the other two provide bright and dim
functions
. On
other aircraft, pressing the PSU DNWASH button will
alternate the state of the cabin overhead lights . Each press of the button
will advance through an Off/Bright/Dim sequence . In the event of
cabin depressurization, the lights will automatically illuminate full
bright if the cabin altitude reaches approximately 14,500 feet . Refer to
OXYGEN SYSTEM for a description of emergency operation
of
the
overhead lights .
On aircraft 60-001 thru 60-303, the optional 3-zone cabin lighting system
may
be installed .
The membrane panel divides the cabin
fluorescent
lights into three labeled sections of forward, middle, and aft . The for-
ward control panel located near the entry door, and the cabin control
unit control the fluorescent lights in each section . By pressing the de-
sired sections overhead
light
switch once will tam those lights on ; press
again dims the lights ; and pressing a third time turns the lights off .
ENTRY LIGHT
A cabin entry light is installed in an overhead panel just aft of the entry
door . The
light is controlled through the membrane-type entry light
switch located near the entry door . The light's circuits are wired to the
right battery bus through the 5-amp ENTRY LTS circuit breaker on the
copilot's circuit breaker panel . Therefore, the light is operable regard-
less of BATTERY switch position .
Some
aircraft have
the optional
timer
function that turns the cabin entry light off after approximately 60
minutes .
BAGGAGE COMPARTMENT LIGHT
Two overhead lights are installed in the cabin baggage compartment to
provide illumination of the compartment . The lights are controlled
through the membrane-type baggage light switch located near the en-
try
door or
through a
membrane-type baggage
light
switch located
in
the aft lavatory . The lights' circuits are wired to the right battery bus
through the 7 .5-amp AFT BAG LT circuit breaker on the copilot's circuit
breaker panel . Therefore, the light is operable regardless of BATTERY
switch position
.
Some aircraft have the optional timer function that
turns
the
cabin
baggage light off
after approximately 60 minutes .
PM-123
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Change 4