A. Put the aircraft back to its initial configuration.
(1)
On the center pedestal, on the MCDU, push the line key adjacent to the RETURN indication until the MCDU MENU page comes into view.
(2)
On the overhead panel, on the ADIRS CDU, set the OFF/NAV/ATT selector switch related to the ADIRU1 to OFF (Ref. TASK 34-10-00-860-005).
(3)
De-energize the aircraft electrical circuits
(Ref. TASK 24-41-00-862-002).
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(4) Make sure that the work area is clean and clear of tool(s) and other
items.
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COMPUTER - GROUND PROXIMITY WARNING (GPWC) (1WZ) - REMOVAL/INSTALLATION
_______________________________________________________________________ TASK 34-48-34-000-001 Removal of the GPWC (1WZ)
1.
Reason for the Job
__________________
Self Explanatory
2.
Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific blanking caps
No specific circuit breaker(s) safety clip(s)
No specific access platform 1.6 m (5 ft. 3 in.)
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
34-48-34-991-001 Fig. 401
3. Job Set-up
__________ Subtask 34-48-34-865-050
A. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------121VU EIS/GPWS/115VAC 3WZ P07 121VU EIS/GPWS/28VDC 2WZ P06
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B. Get Access
(1)
Put the access platform in position at the access door 824 in zone
128.
(2)
Open the access door 824.
4. Procedure
_________ R (Ref. Fig. 401/TASK 34-48-34-991-001) Subtask 34-48-34-020-050
A. Removal of the GPWC
(1)
Loosen the nut (4).
(2)
Lower the nut (4).
(3)
Pull the GPWC (1) on its rack (3) to disconnect the electrical connectors (2).
(4)
Remove the GPWC (1) from its rack (3).
(5)
Put blanking caps on the disconnected electrical connectors (2).
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GPWC
Figure 401/TASK 34-48-34-991-001
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1 1 Feb 01/98
1 1
1CES 1
TASK 34-48-34-400-001
Installation of the GPWC (1WZ)
1.
Reason for the Job
__________________
Self Explanatory
2.
Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------
REFERENCE QTY DESIGNATION
-------------------------------------------------------------------------------
No specific access platform 1.6 m (5 ft. 3 in.)
B. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
R 34-48-00-610-001 Uploading of the Enhanced GPWC Database 34-48-00-710-001 Operational Test of GPWS Ground Self-test Function 34-48-00-710-001 Operational Test of Enhanced GPWS Ground Self-test
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