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RA SYSTEM - FAULT DETECTION
EFFECTIVITY
SHZ ALL 34-33-00
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BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
34-33-00-012
Test
The front panel BITE test only operates when the airplane is on
the ground.
Momentarily push the test switch on the front of the RA
receiver/transmitter to start a self test. Monitor the front panel
for these results:
* Time = 0 seconds - all front panel LEDs come on red
* Time = 2 seconds - LRU STATUS LED changes to green
* Time = 4 seconds - all front panel LEDs go off
* Time = 6 seconds - applicable LEDs come on to show a
normal (green) or fault (red) condition
* Time = 36 seconds - Front panel LEDs go off.
RA SYSTEM - FRONT PANEL BITE
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BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.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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RA SYSTEM - FRONT PANEL BITE
RA SYSTEM - FRONT PANEL BITE
EFFECTIVITY
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BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
34-33-00-013
General
The front panel BITE test causes the RA receiver/transmitter to
send a test altitude to the flight compartment display units. The
test altitude is 40 feet. The test altitude shows during the full
test. The altitude display goes back to normal when the test is
complete.
RA SYSTEM - FLIGHT COMPARTMENT BITE DISPLAY
EFFECTIVITY
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737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
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RA SYSTEM - FLIGHT COMPARTMENT BITE DISPLAY
RA SYSTEM - FLIGHT COMPARTMENT BITE DISPLAY
EFFECTIVITY
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737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
34-33-00-014
General
This page is for reference purpose.
RA SYSTEM - SYSTEM SUMMARY
EFFECTIVITY
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RA SYSTEM - SYSTEM SUMMARY
RA SYSTEM - SYSTEM SUMMARY
EFFECTIVITY
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BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
34-33-00-015
Purpose
The weather radar (WXR) system supplies these visual
indications:
* Weather conditions
* Windshear events
* Land contours.
Description
WXR operates on the same principle as an echo. The WXR
system transmits radio frequency (RF) pulses in a 180 degree
area forward of the airplane. Objects reflect the pulses back to
the receiver. The receiver processes the return signal to show
weather, terrain, and windshear events.
Display
The WXR returns show in four different colors on the navigation
displays (ND). Colors of the indications give the crew
information about the intensity of the returns.
The predictive wind shear (PWS) cautions and warnings show
in amber and red on the ND and PFD displays. Also, there are
aural alerts for PWS cautions and warnings.
Abbreviations and Acronyms
* ac - alternating current
* ADF - automatic direction finder
* ADIRS - air data inertial reference system
* ADIRU - air data inertial reference unit
* alt - altitude
* ant - antenna
* app - approach
* ARINC - Aeronautical Radio, Inc.
* arpt - airport
* AZ - azimuth
* baro - barometric
* BITE - built-in test equipment
* BL - buttock line
* CAL - calibrate
* capt - captain
* CDU - control display unit
* con - control
* CP - control panel
* CPU - central processing unit
* dc - direct current
* DEU - display electronics unit
* DH - decision height
* dn - down
* EFIS - electronic flight instrument system
* EGPWS - enhanced ground proximity warning system
* EL - elevation
* elex - electric
* F/O - first officer
* FMC - flight management computer
* FMCS - flight management computing system
* FPV - flight path vector
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