(4)
Make sure the captain's and the first officer's PULL-UP lights are off.
S 755-005
(5)
Make sure the captain's and the first officer's BELOW G/S lights are off.
(6)
Make sure WINDSHEAR does not show on the EADI.
S 865-066
S 755-007
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A
737-300/400/500MAINTENANCE MANUAL
S 755-008
(7) Make sure the GPWS INOP indicator light is off.
NOTE:____If the light is on, do the Self-Test. If the Self-Test fails, do the Present Status Test.
S 865-009
(8)
Set the FLAP INHIBIT and GEAR INHIBIT switches to the NORMAL position.
S 865-010
(9)
Make sure the landing gear downlock pins are installed.
S 865-011
WARNING: KEEP PERSONS AND EQUIPMENT AWAY FROM ALL CONTROL
_______ SURFACES WHEN HYDRAULIC POWER IS SUPPLIED. AILERONS, ELEVATORS, RUDDER, FLAPS, SLATS, SPOILERS AND STABILIZER ARE FULLY POWERED SURFACES. INJURY TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR WHEN HYDRAULIC POWER IS SUPPLIED.
(10)
Pressurize the B hydraulic system.
S 865-012
(11)
Set the flaps to 15 degrees.
S 865-013
(12)
Set the VHF NAV switch to the NORMAL position.
S 865-014
(13)
Tune the captain's and first officer's VHF NAV control panels to
109.00.
S 865-015
(14) Make sure the landing gear lever is in the DOWN position.
D. GPWC Self-Test
S 865-016
(1) Push the GPWS INOP light located on the F/O instrument panel.
(a) Make sure the light comes on.
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
S 745-062
(2) Push and hold the GPWS SYS test switch on the test panel for 10 seconds.
(a)
Make sure the INOP light comes on the test panel within six seconds.
(b)
Make sure the aural and visual indications occur as follows:
AURAL_____ WARNING LIGHTS______________ EADI
"Glide Slope" BELOW G/S (amber)
"Whoop Whoop Pull Up" PULL UP (red)
Two Tone Siren WINDSHEAR (red)
"Wind Shear" WINDSHEAR (red)
"Wind Shear" WINDSHEAR (red)
"Wind Shear" WINDSHEAR (red)
"Sink Rate"
"Whoop Whoop Pull Up"
"Terrain"
"Whoop Whoop Pull Up"
"Don't Sink"
"Too Low Terrain"
"Too Low Gear"
"Too Low Flaps"
"Too Low Terrain"
"Glide slope"
Two Tone Siren
"Wind Shear"
"Wind Shear"
"Wind Shear"
(c) Make sure GPWC INOP light goes out.
E. Put the Airplane Back to Its Usual Condition
S 865-036
(1) Remove electrical power if it is not necessary (Ref 24-22-00/201).
TASK 34-42-02-725-017
3. Ground Proximity Warning System - System Test
_____________________________________________
A. General
(1) The system test is a complete check of the GPWS. The test includes the GPWS operational test, does a check of the system interfaces, and makes sure of correct operation of the different GPWS modes.
B. References
(1) 24-22-00/201, Electrical Power - Control
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