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LIGHTS - LANDING LIGHTS - FIXED LANDING LIGHTS
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D633A101-GUN Oct 10/2005
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
Purpose
The landing lights help the pilots see the runway during takeoff
and landing.
Physical Description
The retractable landing light has these parts:
* Lens assembly
* Lamp
* Retainer screws
* Extend/retract motor.
Location
The retractable landing lights are on the fuselage, adjacent to
the ram air inlet panels.
The control switches for the retractable landing lights are on the
P5 forward overhead panel.
Training Information Point
You must extend the retractable landing light to replace the
lamp. After you extend the retractable landing light, pull and
collar the circuit breaker to prevent accidental operation of
retraction mechanism or electric shock.
LIGHTS - LANDING LIGHTS - RETRACTABLE LANDING LIGHTS
EFFECTIVITY
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737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
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LIGHTS - LANDING LIGHTS - RETRACTABLE LANDING LIGHTS
LIGHTS - LANDING LIGHTS - RETRACTABLE LANDING LIGHTS
EFFECTIVITY
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BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
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Operation
A two-position toggle switch controls the fixed landing lights.
A three-position toggle switch controls the retractable landing
lights. These are the positions of the switch:
* RETRACT; the light retracts and is off
* EXTEND; the light extends and the light is parallel to the
aircraft water line
* ON; the light is on.
The light will come on only with the switch in the ON position.
Functional Description
When the fixed landing light switch is in the ON position, 115v ac
goes to the step down transformer. The step down transformer
decreases the voltage to 28v ac.
The retractable landing light uses 115v ac to extend and retract
the light.
When the retractable landing light switch is in the RETRACT
position, 115v ac goes to the retract motor in the light. The light
retracts until the full retract limit switch opens.
When the switch is in the EXTEND position, 115v ac goes to the
extend motor in the light. The light extends until the full extend
limit switch opens.
When the switch is in the ON position, the landing light extends.
When the light is within five degrees of full extension the light
will come on.
Training Information Point
WARNING: MAKE SURE YOU SEAL THE TERMINALS TO
PREVENT AN EXPLOSION OF THE FUEL FUMES.
AN EXPLOSION CAN CAUSE INJURY TO
PERSONS AND DAMAGE TO EQUIPMENT.
CAUTION: LANDING LIGHTS ARE NOT DESIGNED FOR
CONTINUOUS USE IN STILL AIR. LIMIT
OPERATION TO MOMENTARY USE.
LIGHTS - LANDING LIGHTS - RETRACTABLE AND FIXED LANDING LIGHTS FUNCTIONAL DESCRIPTION
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BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
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LIGHTS - LANDING LIGHTS - RETRACTABLE AND FIXED LANDING LIGHTS FUNCTIONAL DESCRIPTION
LIGHTS - LANDING LIGHTS - RETRACTABLE AND FIXED LANDING LIGHTS FUNCTIONAL DESCRIPTION
EFFECTIVITY
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737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
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BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
Purpose
The position lights show this information to persons in other
airplanes or on the ground:
* Airplane position
* Direction
* Attitude.
Physical Description
The position lights are red, green, and white incandescent
lights. The left forward position light is red. The right forward
light is green. The tail position lights are white.
Location
There are position lights in the tip of each wing. These lights are
in the leading and trailing edge of the wing tip.
The control switch for the position lights is on the P5 forward
overhead panel.
　
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