Operational Check of the Five-Minute Time Delay of ADIRU2 and ADIRU3 Power Disconnection in Emergency Configuration

TASK 34-10-00-710-009-A
Operational Check of the Five-Minute Time Delay of ADIRU2 and ADIRU3 Power Disconnection in Emergency Configuration

ZONE: 210

1. Reason for the Job
Refer to the MPD TASK: 341300-05
OPERATIONAL CHECK OF THE 5-MINUTE TIME DELAY OF ADIRU 2 AND 3 POWER DISCONNECTION IN EMERGENCY CONFIGURATION
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	ACCESS PLATFORM 1M(3 FT)

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
210	CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD
822

C. 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 34-10-00-860-067-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) Do the EIS start procedure (Ref. AMM TASK 31-60-00-860-001).
(3) On the overhead panel:

On FLT CTL panels 23VU and 24VU, make sure that the FAC, ELAC and SEC pushbutton switches are released (the OFF legends are on).
On the ADIRS CDU, make sure that the three OFF/NAV/ATT selector switches are set to OFF.
On ELEC panel 35VU, make sure that the battery voltage is between 26VDC and 30VDC.

(4) On SWITCHING panel 8VU, make sure that the AIR DATA and ATT HDG selector switches are set to NORM.

Subtask 34-10-00-860-067-B ** ON A/C NOT FOR ALL

On FLT CTL panels 23VU and 24VU, make sure that the FAC, ELAC and SEC pushbutton switches are released (the OFF legends are on).
On ADIRS MSU panel 41VU, make sure that the three OFF/NAV/ATT selector switches are set to OFF.
On ELEC panel 35VU, make sure that the battery voltage is between 26VDC and 30VDC.

(4) On SWITCHING panel 8VU, make sure that the AIR DATA and ATT HDG selector switches are set to NORM.

Subtask 34-10-00-010-057-A

B. Get Access
(1) Put the ACCESS PLATFORM 1M(3 FT) in position below access door 822.
(2) Open access door 822.
(3) On battery power center 105VU:

Loosen the two screws and remove the protective cover.

Subtask 34-10-00-865-068-A

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
49VU	L/G/LGCIU/SYS1/NORM	1GA	C09
49VU	NAV PROBES/ADIRU 1/AND AOA 1/26VAC	5FP1	F07
49VU	NAV PROBES/ADIRU1/115VAC	4FP1	F06
105VU	ADIRS/ADIRU1/28VDC	6FP1	C02
** ON A/C NOT FOR ALL
121VU	ADIRS/ADIRU/2PWR/SHED	10FP	N10
** ON A/C ALL
121VU	ADIRS/ADIRU/3PWR/SWTG	9FP	N09
121VU	ADIRS/ADIRU/2/26VAC AND AOA	5FP2	N08
121VU	ADIRS/ADIRU/3/26VAC AND AOA	5FP3	N07
121VU	ADIRS/ADIRU/2/115VAC	4FP2	N06
121VU	ADIRS/ADIRU/3/115VAC	4FP3	N05
121VU	ADIRS/ADIRU/2/28VDC	6FP2	N04
121VU	ADIRS/ADIRU/3/28VDC	6FP3	N03
121VU	EIS/HORN/SPLY	2WC	P09
121VU	HYDRAULIC/LGCIU/SYS2	2GA	Q35
121VU	HYDRAULIC/LGCIU/SYS1/GRND SPLY	52GA	Q34
** ON A/C NOT FOR ALL
121VU	ADIRS/2PWR/SHED &/AOA2 MON	10FP	N10

4. Procedure
Subtask 34-10-00-710-064-A ** ON A/C NOT FOR ALL

A. Operational Test of the Five-Minute Time Delay of ADIRU2 Power Disconnection in Emergency Configuration

ACTION	RESULT
1.On the ADIRS CDU:	On the ADIRS CDU:
Set the OFF/NAV/ATT selector switch related to IR2 to NAV.	The ALIGN legend of the IR2 annunciator comes on. The ON BAT light comes on for five seconds.
Push the ADR2 pushbutton switch.	The OFF legend comes on. On the F/O PFD: After approximately 35 seconds, the attitude is shown.
2.On rear C/B panel 121VU:	On the ADIRS CDU:
Open circuit breakers 2WC, 4FP2 and 10FP. If ECAM warnings occur when you open circuit breakers 2wc, 4FP2 and 10FP, ignore them.	The ON BAT light comes on. The ALIGN legend of the IR2 annunciator stays on. The OFF legend of the ADR2 pushbutton switch goes off. After five minutes: The ALIGN legend of the IR2 annunciator and the ON BAT light go off. On the F/O PFD: The ATT warning flag is shown.
3.On the ADIRS CDU: Set the OFF/NAV/ATT selector switch related to IR2 to OFF.
4.On rear C/B panel 121VU:
Close circuit breakers 2WC, 4FP2 and 10FP.
5.On the ADIRS CDU:	On the ADIRS CDU:
Set the OFF/NAV/ATT selector switch related to IR2 to NAV.	The ON BAT light comes on for five seconds. The ALIGN legend of the IR2 annunciator comes on. NOTE: If the time to set the OFF/NAV/ATT selector switch from OFF to NAV is less than 20 seconds, the ON BAT light does not come on. NOTE: The OFF and FAULT legends of the ADR2 pushbutton switch can flash.
6.Set the OFF/NAV/ATT selector switch related to IR2 to OFF.

Subtask 34-10-00-710-068-A ** ON A/C NOT FOR ALL

B. Operational Test of the Five-Minute Time Delay of ADIRU3 Power Disconnection in Emergency Configuration

ACTION	RESULT
1.On the ADIRS CDU:	On the ADIRS CDU:
Set the OFF/NAV/ATT selector switch related to IR3 to NAV.	The ALIGN legend of the IR3 annunciator comes on. The ON BAT light comes on for five seconds.
2.On the center pedestal, on SWITCHING panel 8VU:
Set the ATT HDG selector switch to F/O 3.
3.On the ADIRS CDU, push the ADR3 pushbutton switch.	The OFF legend comes on. On the F/O PFD: After approximately 35 seconds, the attitude is shown.
4.On rear circuit-breaker panel 121VU:	On the ADIRS CDU:
Open circuit breakers 2WC, 9FP and 4FP3. If ECAM warnings come into view when you open circuit breakers 2WC, 9FP and 4FP3, ignore them.	The ON BAT light comes on. After five minutes: The ALIGN legend of the IR3 annunciator, the OFF legend of the ADR3 pushbutton switch and the ON BAT light go off. On the F/O PFD: The ATT warning flag is shown.
5.On the ADIRS CDU: Set the OFF/NAV/ATT selector switch related to IR3 to OFF.
6.On rear circuit-breaker panel 121VU:
Close circuit breakers 2WC, 9FP and 4FP3.
7.On the ADIRS CDU:	On the ADIRS CDU:
Set the OFF/NAV/ATT selector switch related to IR3 to NAV.	The ON BAT light comes on for five seconds. The ALIGN legend of the IR3 annunciator comes on. NOTE: If the time to set the OFF/NAV/ATT selector switch from OFF to NAV is less than 20 seconds, the ON BAT light does not come on. NOTE: The OFF and FAULT legends of the ADR3 pushbutton switch can flash.
8.On the ADIRS CDU: Set the OFF/NAV/ATT selector switch related to IR3 to OFF.
9.Set the ATT HDG selector switch to NORM.

Subtask 34-10-00-710-064-C ** ON A/C NOT FOR ALL

C. Operational Test of the Five-Minute Time Delay of ADIRU2 Power Disconnection in Emergency Configuration

ACTION	RESULT
1.On ADIRS MSU panel 41VU:	On ADIRS MSU panel 41VU:
Set the OFF/NAV/ATT selector switch related to IR2 to NAV.	The ON BAT light comes on for five seconds.
Push the ADR2 pushbutton switch.	The OFF legend comes on. On the F/O PFD: After approximately 35 seconds, the attitude is shown.
2.On rear C/B panel 121VU:	On ADIRS MSU panel 41VU:
Open circuit breakers 2WC, 4FP2 and 10FP. If ECAM warnings occur when you open circuit breakers 2WC, 4FP2 and 10FP, ignore them.	The ON BAT light comes on. The OFF legend of the ADR2 pushbutton switch goes off. After five minutes: The ON BAT light goes off. On the F/O PFD: The ATT warning flag is shown.
3.On ADIRS MSU panel 41VU: Set the OFF/NAV/ATT selector switch related to IR2 to OFF.
4.On rear C/B panel 121VU:
Close circuit breakers 2WC, 4FP2 and 10FP.
5.On ADIRS MSU panel 41VU:	On ADIRS MSU panel 41VU:
Set the OFF/NAV/ATT selector switch related to IR2 to NAV.	The ON BAT light comes on for five seconds. NOTE: If the time to set the OFF/NAV/ATT selector switch from OFF to NAV is less than 20 seconds, the ON BAT light does not come on. NOTE: The OFF and FAULT legends of the ADR2 pushbutton switch can flash.
6.Set the OFF/NAV/ATT selector switch related to IR2 to OFF.

Subtask 34-10-00-710-068-C ** ON A/C NOT FOR ALL

D. Operational Test of the Five-Minute Time Delay of ADIRU3 Power Disconnection in Emergency Configuration

ACTION	RESULT
1.On ADIRS MSU panel 41VU:	On ADIRS MSU panel 41VU:
Set the OFF/NAV/ATT selector switch related to IR3 to NAV.	The ON BAT light comes on for five seconds.
2.On the center pedestal, on SWITCHING panel 8VU:
Set the ATT HDG selector switch to F/O 3.
3.On ADIRS MSU panel 41VU, push the ADR3 pushbutton switch.	The OFF legend comes on. On the F/O PFD: After approximately 35 seconds, the attitude is shown.
4.On rear circuit-breaker panel 121VU:	On ADIRS MSU panel 41VU:
Open circuit breakers 2WC, 9FP and 4FP3. If ECAM warnings occur when you open circuit breakers 2WC, 9FP and 4FP3, ignore them.	The ON BAT light comes on. After five minutes: The OFF legend of the ADR3 pushbutton switch and the ON BAT light go off.
5.On ADIRS MSU panel 41VU: Set the OFF/NAV/ATT selector switch related to IR3 to OFF.
6.On rear circuit-breaker panel 121VU:
Close circuit breakers 2WC, 9FP and 4FP3.
7.On ADIRS MSU panel 41VU:	On ADIRS MSU panel 41VU:
Set the OFF/NAV/ATT selector switch related to IR3 to NAV.	The ON BAT light comes on for five seconds. NOTE: If the time to set the OFF/NAV/ATT selector switch from OFF to NAV is less than 20 seconds, the ON BAT light does not come on. NOTE: The OFF and FAULT legends of the ADR3 pushbutton switch can flash.
8.On ADIRS MSU panel 41VU: Set the OFF/NAV/ATT selector switches related to IR3 to OFF.
9.Set the ATT HDG selector switch to NORM.

Subtask 34-10-00-710-064-D ** ON A/C NOT FOR ALL

E. Operational Test of the Five-Minute Time Delay of ADIRU2 Power Disconnection in Emergency Configuration

ACTION	RESULT
1.On ADIRS MSU panel 41VU:	On ADIRS MSU panel 41VU:
Set the OFF/NAV/ATT selector switch related to IR2 to NAV.	The ON BAT light comes on for five seconds.
Push the ADR2 pushbutton switch.	The OFF legend comes on. On the F/O PFD: After approximately 35 seconds, the attitude is shown.
2.On rear C/B panel 121VU:	On ADIRS MSU panel 41VU:
Open circuit breakers 2WC, 4FP2 and 10FP. If ECAM warnings occur when you open circuit breakers 2WC, 4FP2 and 10FP, ignore them.	The OFF legend of the ADR2 pushbutton switch goes off The ON BAT light comes on. After five minutes: The ON BAT light goes off. On the F/O PFD: The ATT warning flag is shown.
3.On ADIRS MSU panel 41VU: Set the OFF/NAV/ATT selector switch related to IR2 to OFF.
4.On rear C/B panel 121VU:
Close circuit breakers 2WC, 4FP2 and 10FP.
5.On ADIRS MSU panel 41VU:	On ADIRS MSU panel 41VU:
Set the OFF/NAV/ATT selector switch related to IR2 to NAV.	The ON BAT light comes on for five seconds. NOTE: If the time to set the OFF/NAV/ATT selector switch from OFF to NAV is less than 20 seconds, the ON BAT light does not come on.
6.Set the OFF/NAV/ATT selector switch related to IR2 to OFF.

Subtask 34-10-00-710-068-D ** ON A/C NOT FOR ALL

F. Operational Test of the Five-Minute Time Delay of ADIRU3 Power Disconnection in Emergency Configuration

ACTION	RESULT
1.On ADIRS MSU panel 41VU:	On ADIRS MSU panel 41VU:
Set the OFF/NAV/ATT selector switch related to IR3 to NAV.	The ON BAT light comes on for five seconds.
2.On the center pedestal, on SWITCHING panel 8VU:
Set the ATT HDG selector switch to F/O 3.
3.On ADIRS MSU panel 41VU, push the ADR3 pushbutton switch.	The OFF legend comes on. On the F/O PFD: After approximately 35 seconds, the attitude is shown.
4.On rear circuit-breaker panel 121VU:	On ADIRS MSU panel 41VU:
Open circuit breakers 2WC, 9FP and 4FP3. If ECAM warnings occur when you open circuit breakers 2WC, 9FP and 4FP3, ignore them.	The ON BAT light comes on. After five minutes: The ON BAT light goes off.
5.On ADIRS MSU panel 41VU: Set the OFF/NAV/ATT selector switch related to IR3 to OFF.
6.On rear circuit-breaker panel 121VU:
Close circuit breakers 2WC, 9FP and 4FP3.
7.On ADIRS MSU panel 41VU:	On ADIRS MSU panel 41VU:
Set the OFF/NAV/ATT selector switch related to IR3 to NAV.	The ON BAT light comes on for five seconds. NOTE: If the time to set the OFF/NAV/ATT selector switch from OFF to NAV is less than 20 seconds, the ON BAT light does not come on.
8.On ADIRS MSU panel 41VU: Set the OFF/NAV/ATT selector switch related to IR3 to OFF.
9.Set the ATT HDG selector switch to NORM.

5. Close-up
Subtask 34-10-00-860-068-A

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

Subtask 34-10-00-410-057-A

B. Close Access
(1) Install the protective cover on battery power center 105VU.
(2) Tighten the two screws.
(3) Close access door 822.
(4) Remove the access platform(s).

[Rev.10 from 2021] 2026.04.02 06:23:00 UTC