Operational Test of the Enhanced GPWS with Stall Warning Test and Activation of the GPWS/SYS Pushbutton Switch and EMER CANC Key

TASK 34-48-00-710-002-B
Operational Test of the Enhanced GPWS with Stall Warning Test and Activation of the GPWS/SYS Pushbutton Switch and EMER CANC Key

WARNING: MAKE SURE THAT ALL THE CIRCUITS IN MAINTENANCE ARE ISOLATED BEFORE YOU SUPPLY ELECTRICAL POWER TO THE AIRCRAFT. UNWANTED ELECTRICAL POWER CAN BE DANGEROUS.

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
TASK 24-41-00-861-002-A	Energize the Aircraft Electrical Circuits from the External Power
TASK 24-41-00-861-002-A-01	Energize the Aircraft Electrical Circuits from the APU
TASK 24-41-00-861-002-A-02	Energize the Aircraft Electrical Circuits from Engine 1(2)
TASK 24-41-00-862-002-A	De-energize the Aircraft Electrical Circuits Supplied from the External Power
TASK 24-41-00-862-002-A-01	De-energize the Aircraft Electrical Circuits Supplied from the APU
TASK 24-41-00-862-002-A-02	De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2)
TASK 31-32-00-860-010-A	Procedure to Get Access to the SYSTEM REPORT/TEST NAV Page
TASK 34-10-00-860-002-A	ADIRS Start Procedure
TASK 34-10-00-860-005-A	ADIRS Stop Procedure

3. Job Set-up
Subtask 34-48-00-860-061-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
(2) On the overhead control and indicating panel 21VU, on the GPWS section, make sure that the five GPWS pushbutton switches are released (legends off).
(3) On the center pedestal, on one MCDU, get the SYSTEM REPORT/TEST/NAV page
(Ref. AMM TASK 31-32-00-860-010).
(4) Do the ADIRU1 start procedure (Ref. AMM TASK 34-10-00-860-002).

Subtask 34-48-00-865-058-A ** ON A/C NOT FOR ALL

B. Make sure that this(these) circuit breaker(s) is(are) closed:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	FWS/FWC1/SPLY	3WW	F01
121VU	EIS/GPWS/115VAC	3WZ	P07
121VU	EIS/GPWS/28VDC	2WZ	P06
121VU	EIS/FWC2/SPLY	2WW	Q07

4. Procedure
Subtask 34-48-00-710-057-B ** ON A/C NOT FOR ALL

A. Operational Test of the Enhanced GPWS with Stall Warning Test and Activation of the GPWS/SYS Pushbutton Switch and EMER CANC Key

ACTION	RESULT
1.On the MCDU, on the NAV page:
Push the line key adjacent to the ADR1 indication.	On the MCDU: The ADIRS ADR1 menu page comes into view.
Push the line key adjacent to the OUTPUT TESTS indication.	The OUTPUT TESTS page comes into view.
Push the line key adjacent to the AOA SENSOR TEST indication.	These indications come into view: AOA SENSOR COMMANDED TO FIXED POSITION CHECK STALL WARNING.
	On the panel 21VU: The FAULT legend of the GPWS/SYS and GPWS/TERR pushbutton switches comes on after 60 seconds.
	On the CAPT and F/O glareshield panels 130VU and 131VU: The MASTER WARN lights flash.
	In the loudspeakers: You can hear the cricket aural warning and the stall voice.
Push the line key adjacent to the YES indication.	On the MCDU: The TEST OK indication comes into view.
	On the panel 21VU: The FAULT legend of the GPWS/SYS and GPWS/TERR pushbutton switches goes off.
	On the CAPT and F/O glareshield panels 130VU and 131VU: The MASTER WARN lights go off.
	In the loudspeakers: The aural warnings stop.
On the MCDU, push the line select key adjacent to the RETURN indication until the CFDS menu page comes into view.
2.On the center pedestal, on the ECAM control panel:
Push and hold the EMER CANC key.	On the panel 21VU: The FAULT legend of the GPWS/SYS pushbutton switch comes on after approximately 35 seconds.
3.On the panel 21VU: Push the GPWS/SYS pushbutton switch.	The FAULT legend goes off. The OFF legend comes on.
Release the GPWS/SYS pushbutton switch.	The FAULT legend comes on. The OFF legend goes off.
4.On the center pedestal, on the ECAM control panel:
Release the EMER CANC key.	On the overhead panel 21VU: The FAULT legend of the GPWS/SYS pushbutton switch goes off.
5.On the overhead circuit breaker panel 49VU: Open the circuit breaker 3WW.
On the rear circuit breaker panel 121VU: Open the circuit breaker 2WW. 6.Close the circuit breakers 2WW and 3WW.

5. Close-up
Subtask 34-48-00-860-062-A ** ON A/C NOT FOR ALL

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) Do the ADIRS stop procedure (Ref. AMM TASK 34-10-00-860-005).
(3) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
(4) Make sure that the work area is clean and clear of tools and other items.

[Rev.10 from 2021] 2026.04.02 06:23:29 UTC