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internal faults and/or GPWS external faults. The aural message will provide a
description of the fault(s).
6.2.6 Self Test Level 3 - System Configuration
NOTE: Level 3 Self Test must be performed immediately following Level 2 Self Test. Thus, the
test steps listed below start with Level 1 Self Test and step to Level 2 Self Test.
NOTE: The GND PROX BITE or GND PROX SYS message will be annunciated on the EICAS system display
and the Terrain INOP light will be illuminated throughout this test.
Test Procedure:
1. Initiate the EGPWS Self Test (Level 1) and release the GPWS test switch. Once the Level
1 Self Test audio sequence begins, press and hold the GPWS test switch for less than
2 seconds (this will start Self Test Level 2 - Current Faults).
NOTE: The operator may skip step 1 above and start this test immediately following Level
2 Self Test as described in Section 6.2.4, Self Test Level 2— Current Faults.
2. Within 3 seconds after the “PRESS TO CONTINUE” message is enunciated at the end of
Level 2 Self Test, press the GPWS test switch for less than 2 seconds.
NOTE: Annotate the correct serial number for the EGPWC being installed per this
installation.
3. VERIFY the following messages are enunciated.
NOTE: Order of messages is not being tested only that all of the messages are enunciated.
______________
______________
______________
______________
______________
______________
______________
______________
“SYSTEM CONFIGURATION”’
“PART NUMBER 965-0976-020-XXX-XXX”
“MOD STATUS X”
“SERIAL NUMBER”
“APPLICATION SOFTWARE VERSION X...”
“CONFIGURATION SOFTWARE VERSION X...”
“TERRAIN DATABASE VERSION X...”
“ENVELOPE MOD DATABASE VERSION X...”
‘BOOT CODE VERSION X...”
“AIRCRAFT TYPE 224”
“AUDIO MENU 0”
“ALTITUDE CALLOUT MENU 18”
“ALTERNATE MODE 6 VOLUME SELECTED”
“OPTIONAL INPUTS SELECTED”
“TRIPLE RADIO ALTIMETER SELECTED”
“DUAL ILS SELECTED”
“BANK ANGLE OPTION 1 SELECTED”
“INTERNAL GPS SELECTED”
“PEAKS ENABLED”
“MODE 6 LOW VOLUME SELECTED”
“PRESS TO CONTINUE”
For Training Purpose Only Printed:May 2005
B757-200 Aircraft Recurrent Training Manual - 55 -
PASS FAIL
4. End of Self-Test Level 3.
6.2.7 Self Test Level 6 - Discrete Input Test
NOTE: Self Test Levels 4 and S are not required for this test. Self Test Level 4 enunciates
faults that have occurred during past flights. Self Test Level 5 enunciates
alerts/warnings that have occurred during past flights. Refer to the Line Maintenance
Manual for the Enhanced Ground Proximity Warning Computer Part Number
965-0976-OXX-XXX-XXX (Honeywell Document 060-4199-014) for details.
NOTE: To get to a Level 6 Self Test the operator must cycle through Self Test Levels 1 through
5. The following steps show the procedure to get to the Level 6 Self Test.
NOTE: The GND PROX BITE or GND PROX SYS message will be annunciated on the EICAS system display
and the Terrain INOP light will be illuminated throughout this test.
Test Procedure:
1. Initiate the EGPWS Self Test (Level 1) and release the GPWS test switch. Once the Level
1 Self Test audio sequence begins, press and hold the GPWS test switch for less than
2 seconds (this will start Self Test Level 2 - Current Faults).
Within 3 seconds after the “PRESS TO CONTINUE” message is enunciated at the end of
Level 2 Self Test, press the GPWS test switch for less than 2 seconds (this will start
Self Test Level 3 - System Configuration).
After “SYSTEM CONFIGURATION” is enunciated, perform a long cancel (press the GPWS
test switch for between 2 and 8 seconds).
The “PRESS TO CONTINUE” message is enunciated.
NOTE: The operator may skip step 1 above and start this test immediately following Level
3 Self Test as described in Section 6.2.5, Self Test Level 3 - System
Configuration.
2. Within 3 seconds after the “PRESS TO CONTINUE” message is enunciated at the end of
Level 3 Self Test, press the same GPWS test switch for less than 2 seconds. (This will
start Self Test Level 4 - Fault History).
3. After “FAULT HISTORY” is enunciated, perform a long cancel (press the GPWS test
switch for between 2 and 8 seconds).
4. Within 3 seconds after the “PRESS TO CONTINUE” message is enunciated, press the GPWS
test switch for less than 2 seconds. (This will start Self Test Level 5 - Warning
　
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