Operational Test of Emergency Shutdown System (with APU SHUT OFF Switch 1KL) (131-9(A))

TASK 49-62-00-710-007-A
Operational Test of Emergency Shutdown System (with APU SHUT OFF Switch 1KL) (131-9(A))

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 31-60-00-860-001-A	EIS Start Procedure
TASK 31-60-00-860-002-A	EIS Stop Procedure

3. Job Set-up
Subtask 49-62-00-865-056-A ** ON A/C NOT FOR ALL

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	APU/FUEL/BLOW OFF/PUMP	2QC	B14
** ON A/C NOT FOR ALL
121VU	APU/FUEL/BLOW OFF/CTL	1QC	K39
** ON A/C NOT FOR ALL
121VU	APU/FIRE AND OVHT/DET/LOOP B	2WG	L44
121VU	APU/FIRE AND OVHT/DET/LOOP A	1WG	L43
121VU	APU/APU/CTL	2KD	L42
121VU	APU/ECB/SPLY	1KD	L41
121VU	APU/FIRE/EXTIG/SQUIB/B	2WF	L39
121VU	APU/FIRE/EXTIG/SQUIB/A	1WF	L38
121VU	APU/FIRE/LP VALVE/NORM	4WF	M42
121VU	APU/FIRE/LP VALVE/STBY	3WF	M41
121VU	APU/FUEL/LP VALVE/CTL	1QF	M40
121VU	APU/FUEL/LP VALVE/SPLY	2QF	M39
121VU	APU/FUEL/PUMP/CTL	3QC	M38
** ON A/C NOT FOR ALL
121VU	APU/FUEL/BLOW OFF/CTL	1QC	P38

Subtask 49-62-00-860-054-A ** ON A/C NOT FOR ALL

B. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
(2) Do the EIS start procedure (upper ECAM DU and lower ECAM DU only)
(Ref. AMM TASK 31-60-00-860-001).

4. Procedure
Subtask 49-62-00-710-058-A ** ON A/C NOT FOR ALL

A. Operational Test of the Emergency Shutdown System

ACTION	RESULT
1.In the INT LT section of the overhead panel 25VU: put the ANN LT switch in the TEST position.	In the cockpit: all annunciator lights come on fully bright.
2.In the INT LT section of the overhead panel 25VU: put the ANN LT switch in the BRT position.	In the cockpit: the applicable annunciator lights go off.
3.On the overhead panel 25VU: push the pushbutton APU MASTER SW to the ON position.	On the overhead panel 25VU: the ON legend in the pushbutton APU MASTER SW comes on.
4.On the ECAM control panel: push the FUEL pushbutton switch.	On the ECAM lower display unit: the FUEL page comes into view.
	On the FUEL page of the ECAM lower display unit: the APU LP fuel-valve symbol is shown in the open position.
5.On the external power control panel 108VU: push the APU SHUT OFF pushbutton switch (guarded red).	On the ECAM upper display unit: the warning, APU EMER SHUT DOWN MASTER SW .... OFF comes on.
	On the glareshield panels 130VU and 131VU: the MASTER CAUT lights come on, a single chime is heard.
	On the overhead panel 25VU: the FAULT legend in the pushbutton APU MASTER SW comes on.
	On the FUEL page of the ECAM lower display unit: the APU LP fuel-valve symbol is shown in the closed position.
6.On the overhead panel 25VU: release the APU MASTER SW pushbutton switch.	On the overhead panel 25VU: the FAULT legend in the APU MASTER SW pushbutton switch goes off, the ON legend in the APU MASTER SW pushbutton switch goes off.
	On the ECAM upper display unit: the warning, MASTER SW .... OFF goes off.
7.On the glareshield panel 130VU or 131VU: push the MASTER CAUT pushbutton switch.	On the glareshield panels 130VU and 131VU: the MASTER CAUT lights go off.
8.On the overhead panel 25VU: push and release the APU MASTER SW twice (on/off) to reset the ECB (59KD).	On the ECAM upper display unit: the warning, APU EMER SHUT DOWN goes off.
9.On the overhead panel 25VU: Push the APU MASTER SW to ON position.	On the overhead panel 25VU: the ON legend in the pushbutton APU MASTER SW comes on.
	On the FUEL page of the ECAM lower display unit: the APU LP fuel-valve symbol is shown in the open position.
10.On the overhead panel 25VU: release the APU MASTER SW pushbutton switch.	On the overhead panel 25VU: the FAULT legend in the APU MASTER SW pushbutton switch goes off, the ON legend in the APU MASTER SW pushbutton switch goes off.

5. Close-up
Subtask 49-62-00-860-055-A ** ON A/C NOT FOR ALL

A. Put the aircraft back to its initial configuration.
(1) Do the EIS stop procedure
(Ref. AMM TASK 31-60-00-860-002).
(2) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).

[Rev.10 from 2021] 2026.04.01 08:26:32 UTC