OPERATIONAL CHECK OF OVERSPEED WARNING VMO/MMO USING CFDS

TASK 34-13-00-710-002-A
OPERATIONAL CHECK OF OVERSPEED WARNING VMO/MMO USING CFDS

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.

ZONE: 210

1. Reason for the Job
Refer to the MPD TASK: 341300-01
OPERATIONAL CHECK OF OVERSPEED WARNING VMO/MMO USING CFDS.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	ACCESS PLATFORM 1M(3 FT)
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER

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 31-32-00-860-010-A	Procedure to Get Access to the SYSTEM REPORT/TEST NAV Page
TASK 31-60-00-860-001-A	EIS Start Procedure
TASK 31-60-00-860-002-A	EIS Stop Procedure
TASK 34-10-00-860-002-A	ADIRS Start Procedure
TASK 34-10-00-860-005-A	ADIRS Stop Procedure
TASK 34-13-00-740-002-A	INTERFACE TEST of the ADR

3. Job Set-up
Subtask 34-13-00-010-052-A

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

Loosen the two screws and remove the protective cover.

Subtask 34-13-00-860-059-A

B. Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).

Subtask 34-13-00-865-064-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	FWS/FWC1/SPLY	3WW	F01
121VU	HYDRAULIC/LGCIU/SYS2	2GA	Q35
121VU	HYDRAULIC/LGCIU/SYS1/GRND SPLY	52GA	Q34
121VU	EIS/FWC2/SPLY	2WW	Q07

Subtask 34-13-00-865-069-A

WARNING: OPEN CIRCUIT BREAKER 7XE. THIS WILL PREVENT A POSSIBLE DEPLOYMENT OF THE RAT IF THE MAIN AC BUSBARS 1XP AND 2XP BECOME ISOLATED.

D. Open, safety and tag this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	AUTO FLT/FAC1/28VDC	5CC1	B04
** ON A/C NOT FOR ALL
49VU	AUTO FLT/FAC1/28VDC	5CC1	H10
** ON A/C ALL
105VU	ELEC/CSM/G /EV AUTO/SPLY	7XE	C01
121VU	AUTO FLT/FAC2/28VDC	5CC2	M19

Subtask 34-13-00-860-061-A ** ON A/C NOT FOR ALL

E. Aircraft Maintenance Configuration
(1) Do the EIS start procedure (Ref. AMM TASK 31-60-00-860-001).
(2) Do the ADIRS start procedure (Ref. AMM TASK 34-10-00-860-002),
(3) On the overhead panel :

On the FLT CTL panels 23VU and 24VU, make sure that the FAC, ELAC and SEC pushbutton switches are not pushed (in). The OFF legends are on
On the ADIRS CDU, on the panel 20VU, make sure that the 3 OFF/NAV/ATT selector switches are at NAV
On the ELEC panel 35VU, make sure that the battery voltage is correct, between 26VDC and 30VDC.

(4) On the center pedestal, on one MCDU, get the SYSTEM REPORT/TEST/NAV page (Ref. AMM TASK 31-32-00-860-010).
(5) Make sure that the L/G doors are closed and the slats/flaps are fully retracted.

Subtask 34-13-00-860-061-C ** ON A/C NOT FOR ALL

E. Aircraft Maintenance Configuration
(1) Do the EIS start procedure (Ref. AMM TASK 31-60-00-860-001).
(2) Do the ADIRS start procedure (Ref. AMM TASK 34-10-00-860-002),
(3) On the overhead panel:
(a) On the FLT CTL panels 23VU and 24VU, make sure that the FAC, ELAC and SEC pushbutton switches are not pushed (in). The OFF legends are on.
(b) On ADIRS MSU panel 41VU, make sure that the three OFF/NAV/ATT selector switches are at NAV.
(c) On the ELEC panel 35VU, make sure that the battery voltage is correct, between 26VDC and 30VDC.
(4) On the center pedestal, on one MCDU, get the SYSTEM REPORT/TEST/NAV page (Ref. AMM TASK 31-32-00-860-010).
(5) Make sure that the L/G doors are closed and the slats/flaps are fully retracted.

4. Procedure
Subtask 34-13-00-710-051-H ** ON A/C NOT FOR ALL

A. OVERSPEED Warning VMO/MMO 1 (L/G DOWN VMO/MMO SELECTION Switch 22FP at NORM)

NOTE: This test is for the VMO/MMO overspeed warning only. Ignore the warnings and indications (VLE, ...) which are not related to this test.

ACTION	RESULT
1.On the overhead panel, on the ADIRS CDU:	On the ADIRS DCU:
Push the ADR2 and ADR3 pushbutton switches.	The OFF legend of the ADR2 and ADR3 pushbutton switches comes on.
2.On the MCDU:	On the MCDU:
Push the line key adjacent to the ADR1 indication.	The ADR1 page comes into view.
Push the line key adjacent to the OUTPUT TESTS indication.	The ADR1 OUTPUT TESTS page comes into view.
Push the line key adjacent to the INTERFACE TEST indication.	The ADR1 INTERFACE TEST 1/2 page comes into view.
On the keyboard push the NEXT PAGE function key.	The ADR1 INTERFACE TEST 2/2 page comes into view.
Push the line key adjacent to the START TEST indication.	From 0 to 10 seconds, ignore the warnings and indications. From 10 seconds and more, on the CAPT(F/O) PFD, the speed increases to 367.7 Kts (and altitude increases to 10000 ft). When the value is 354 Kts: On the upper ECAM display unit, this indication is shown: OVERSPEED VMO/MMO 350/.82 On panels 130VU and 131VU, the MASTER WARN lights flash. You can hear the continuous repetitive chime aural warning.
Push the line key adjacent to the RETURN indication.	The test procedure stops. The warnings above stop.
Push the line key adjacent to the RETURN indication.	The SYSTEM REPORT/TEST/NAV page comes into view.
3.On the ADIRS CDU:
Push the ADR2 pushbutton switch.	The OFF legend of the ADR2 pushbutton switch goes off.
Push the ADR1 pushbutton switch.	The OFF legend of the ADR1 pushbutton switch comes on.
4.On the MCDU:
Push the line key adjacent to the ADR2 indication. Do the same test as specified in Para. 2 and 3.	Same results on the F/O PFD.
5.On the ADIRS CDU:
Push the ADR3 pushbutton switch.	On the ADIRS CDU, the OFF legend of the ADR3 pushbutton switch goes off.
6.On SWITCHING panel 8VU: Set the AIR DATA selector switch to CAPT/3.	On the CAPT PFD, the speed and altitude indications from the ADR3 come into view.
7.On the ADIRS CDU:
Push the ADR2 pushbutton switch.	On the ADIRS CDU, the OFF legend of the ADR2 pushbutton switch comes on.
8.On the MCDU:
Push the line key adjacent to the ADR3 indication. Do the same test as specified in Para. 2 and 3.	Same results on the CAPT PFD.
9.On the ADIRS CDU:
Push the ADR1 and ADR2 pushbutton switches.	On the ADIRS CDU, the OFF legend of the ADR1 and ADR2 pushbutton switches goes off.
10.On SWITCHING panel 8VU: Set the AIR DATA selector switch to NORM.

Subtask 34-13-00-710-052-H ** ON A/C NOT FOR ALL

B. OVERSPEED Warning VMO/MMO 2 (L/G DOWN VMO/MMO SELECTION Switch 22FP at L/G DOWN)

ACTION	RESULT
1.In the avionics compartment, on panel 188VU: Remove the warning lockwire from the safety cover of the L/G DOWN VMO/MMO SELECTION switch Set the switch to L/G DOWN.
2.In the cockpit on the overhead panel, on the ADIRS CDU:	On the ADIRS CDU:
Push the ADR2 and ADR3 pushbutton switches.	The OFF legend of the ADR2 and ADR3 pushbutton switches comes on.
3.On the MCDU:	On the MCDU:
Push the line key adjacent to the ADR1 indication.	The ADR1 page comes into view.
Push the line key adjacent to the OUTPUT TESTS indication.	The ADR1 OUTPUT TESTS page comes into view.
Push the line key adjacent to the INTERFACE TEST indication.	The ADR1 INTERFACE TEST 1/2 page comes into view.
On the keyboard push the NEXT PAGE function key.	The ADR1 INTERFACE TEST 2/2 page comes into view.
Push the line key adjacent to the START TEST indication. (Ref. AMM TASK 34-13-00-740-002).	From 0 to 10 seconds, ignore the warnings and indications. From 10 seconds and more, on the CAPT(F/O) PFD, the speed increases to 367.7 Kts (and altitude increases to 10000 ft). When the value is 239 Kts: On the upper ECAM display unit, this indication is shown: OVERSPEED VMO/MMO 235/.60 On panels 130VU and 131VU, the MASTER WARN lights flash You can hear the continuous repetitive chime aural warning.
Push the line key adjacent to the RETURN indication.	The test procedure stops. The warnings above stop.
Push the line key adjacent to the RETURN indication.	The SYSTEM REPORT/TEST/NAV page comes into view.
4.On the ADIRS CDU:	On the ADIRS CDU:
Push the ADR2 pushbutton switch.	The OFF legend of the ADR2 pushbutton switch goes off.
Push the ADR1 pushbutton switch.	The OFF legend of the ADR1 pushbutton switch comes on.
5.On the MCDU:
Push the line key adjacent to the ADR2 indication. Do the same test as specified in Para. 3 and 4.	Same results on the F/O PFD.
6.On the ADIRS CDU:
Push the ADR3 pushbutton switch.	On the ADIRS CDU, the OFF legend of the ADR3 pushbutton switch goes off.
7.On SWITCHING panel 8VU: Set the AIR DATA selector switch to CAPT/3.	On the CAPT PFD, the speed and altitude indications from the ADR3 come into view.
8.On the ADIRS CDU:
Push the ADR2 pushbutton switch.	On the ADIRS CDU, the OFF legend of the ADR2 pushbutton switch comes on.
9.On the MCDU:
Push the line key adjacent to the ADR3 indication. Do the same test as specified in Para. 3 and 4.	Same results on the CAPT PFD.
10.ON the ADIRS CDU:
Push the ADR1 and ADR2 pushbutton switches.	On the ADIRS CDU, the OFF legend of the ADR1 and ADR2 pushbutton switches goes off.
11.On SWITCHING panel 8VU: Set the AIR DATA selector switch to NORM.
12.In the avionics compartment, on panel 188VU: Set the L/G DOWN VMO/MMO SELECTION switch to NORM Lock the safety cover and secure it with warning lockwire.

Subtask 34-13-00-710-051-I ** ON A/C NOT FOR ALL

C. OVERSPEED Warning VMO/MMO 1 (L/G DOWN VMO/MMO SELECTION Switch 22FP at NORM)

NOTE: This test is for the VMO/MMO overspeed warning only. Ignore the warnings and indications (VLE, ...) which are not related to this test.

ACTION	RESULT
1.On ADIRS MSU panel 41VU:	On ADIRS MSU panel 41VU:
Push ADR2 and ADR3 pushbutton switches.	The OFF legend of ADR2 and ADR3 pushbutton switches comes on.
2.On the MCDU:	On the MCDU:
Push the line key adjacent to ADR1 indication.	ADR1 page comes into view.
Push the line key adjacent to the OUTPUT TESTS indication.	ADR1 OUTPUT TESTS page comes into view.
Push the line key adjacent to the INTERFACE TEST indication.	ADR1 INTERFACE TEST 1/2 page comes into view.
On the keyboard push the NEXT PAGE function key.	ADR1 INTERFACE TEST 2/2 page comes into view.
Push the line key adjacent to the START TEST indication.	From 0 to 10 seconds, ignore the warnings and indications. From 10 seconds and more, on the CAPT(F/O) PFD, the speed increases to 367.7 Kts (and altitude increases to 10000 ft). When the value is 354 Kts: On the upper ECAM display unit, this indication is shown: OVERSPEED VMO/MMO 350/.82 On F/O and CAPT glareshield panels 130VU and 131VU, the MASTER WARN lights flash. You can hear the continuous repetitive chime aural warning.
Push the line key adjacent to the RETURN indication.	The test procedure stops. The warnings above stop.
Push the line key adjacent to the RETURN indication.	The SYSTEM REPORT/TEST/NAV page comes into view.
3.On ADIRS MSU panel 41VU:
Push ADR2 pushbutton switch.	The OFF legend of ADR2 pushbutton switch goes off.
Push ADR1 pushbutton switch.	The OFF legend of ADR1 pushbutton switch comes on.
4.On the MCDU:
Push the line key adjacent to the ADR2 indication. Do the same test as specified in Para. 2 and 3.	Same results on the F/O PFD.
5.On ADIRS MSU panel 41VU:
Push ADR3 pushbutton switch.	On ADIRS MSU panel 41VU, the OFF legend of ADR3 pushbutton switch goes off.
6.On SWITCHING panel 8VU: Set the AIR DATA selector switch to CAPT/3.	On the CAPT PFD, the speed and altitude indications from ADR3 come into view.
7.On ADIRS MSU panel 41VU:
Push ADR2 pushbutton switch.	On ADIRS MSU panel 41VU, the OFF legend of ADR2 pushbutton switch comes on.
8.On the MCDU:
Push the line key adjacent to ADR3 indication. Do the same test as specified in Para. 2 and 3.	Same results on the CAPT PFD.
9.On ADIRS MSU panel 41VU:
Push ADR1 and ADR2 pushbutton switches.	On ADIRS MSU panel 41VU, the OFF legend of ADR1 and ADR2 pushbutton switches goes off.
10.On SWITCHING panel 8VU: Set the AIR DATA selector switch to NORM.

Subtask 34-13-00-710-052-I ** ON A/C NOT FOR ALL

D. OVERSPEED Warning VMO/MMO 2 (L/G DOWN VMO/MMO SELECTION Switch 22FP at L/G DOWN)

ACTION	RESULT
1.In the avionics compartment, on panel 188VU: Remove the warning lockwire from the safety cover of the L/G DOWN VMO/MMO SELECTION switch Set the switch to L/G DOWN.
2.On ADIRS MSU panel 41VU:	On ADIRS MSU panel 41VU:
Push ADR2 and ADR3 pushbutton switches.	The OFF legend of ADR2 and ADR3 pushbutton switches comes on.
3.On the MCDU:	On the MCDU:
Push the line key adjacent to ADR1 indication.	ADR1 page comes into view.
Push the line key adjacent to the OUTPUT TESTS indication.	ADR1 OUTPUT TESTS page comes into view.
Push the line key adjacent to the INTERFACE TEST indication.	ADR1 INTERFACE TEST 1/2 page comes into view.
On the keyboard push the NEXT PAGE function key.	ADR1 INTERFACE TEST 2/2 page comes into view.
Push the line key adjacent to the START TEST indication. (Ref. AMM TASK 34-13-00-740-002).	From 0 to 10 seconds, ignore the warnings and indications. From 10 seconds and more, on the CAPT(F/O) PFD, the speed increases to 367.7 Kts (and altitude increases to 10000 ft). When the value is 239 Kts: On the upper ECAM display unit, this indication is shown: OVERSPEED VMO/MMO 235/.60 On F/O and CAPT glareshield panels 130VU and 131VU, the MASTER WARN lights flash You can hear the continuous repetitive chime aural warning.
Push the line key adjacent to the RETURN indication.	The test procedure stops. The warnings above stop.
Push the line key adjacent to the RETURN indication.	The SYSTEM REPORT/TEST/NAV page comes into view.
4.On ADIRS MSU panel 41VU:	On ADIRS MSU panel 41VU:
Push ADR2 pushbutton switch.	The OFF legend of ADR2 pushbutton switch goes off.
Push ADR1 pushbutton switch.	The OFF legend of ADR1 pushbutton switch comes on.
5.On the MCDU:
Push the line key adjacent to ADR2 indication. Do the same test as specified in Para. 3 and 4.	Same results on the F/O PFD.
6.On ADIRS MSU panel 41VU:
Push ADR3 pushbutton switch.	On ADIRS MSU panel 41VU, the OFF legend of ADR3 pushbutton switch goes off.
7.On SWITCHING panel 8VU: Set the AIR DATA selector switch to CAPT/3.	On the CAPT PFD, the speed and altitude indications from ADR3 come into view.
8.On ADIRS MSU panel 41VU:
Push ADR2 pushbutton switch.	On ADIRS MSU panel 41VU, the OFF legend of ADR2 pushbutton switch comes on.
9.On the MCDU:
Push the line key adjacent to ADR3 indication. Do the same test as specified in Para. 3 and 4.	Same results on the CAPT PFD.
10.On ADIRS MSU panel 41VU:
Push ADR1 and ADR2 pushbutton switches.	On ADIRS MSU panel 41VU, the OFF legend of ADR1 and ADR2 pushbutton switches goes off.
11.On SWITCHING panel 8VU: Set the AIR DATA selector switch to NORM.
12.In the avionics compartment, on panel 188VU: Set the L/G DOWN VMO/MMO SELECTION switch to NORM Lock the safety cover and secure it with warning lockwire.

Subtask 34-13-00-710-051-J ** ON A/C NOT FOR ALL

E. OVERSPEED Warning VMO/MMO 1 (L/G DOWN VMO/MMO SELECTION Switch 22FP at NORM)

NOTE: This test is for the VMO/MMO overspeed warning only. Ignore the warnings and indications (VLE, ...) which are not related to this test.

NOTE: During this test alerts can come into view. If this occurs, ignore these alerts.

ACTION	RESULT
1.On ADIRS MSU panel 41VU:	On ADIRS MSU panel 41VU:
Push ADR2 and ADR3 pushbutton switches.	The OFF legend of ADR2 and ADR3 pushbutton switches comes on.
2.On the MCDU:	On the MCDU:
Push the line key adjacent to ADR1 indication.	ADR1 page comes into view.
Push the line key adjacent to the OUTPUT TESTS indication.	ADR1 OUTPUT TESTS page comes into view.
Push the line key adjacent to the INTERFACE TEST indication.	ADR1 INTERFACE TEST 1/2 page comes into view.
On the keyboard push the NEXT PAGE function key.	ADR1 INTERFACE TEST 2/2 page comes into view.
Push the line key adjacent to the START TEST indication.	From 0 to 10 seconds, ignore the warnings and indications. From 10 seconds and more, on the CAPT(F/O) PFD, the speed increases to 367.7 Kts (and altitude increases to 10000 ft). When the speed scale goes across 80 Kts, push the RCL button on the ECAM panel. NOTE: When you do this, alerts can come into view. If this occurs, ignore these alerts. When the value is 354 Kts: On the upper ECAM display unit, this indication is shown: OVERSPEED VMO/MMO 350/.82 On F/O and CAPT glareshield panels 130VU and 131VU, the MASTER WARN lights flash. You can hear the continuous repetitive chime aural warning.
Push the line key adjacent to the RETURN indication.	The test procedure stops. The warnings above stop.
Push the line key adjacent to the RETURN indication.	The SYSTEM REPORT/TEST/NAV page comes into view.
3.On ADIRS MSU panel 41VU:
Push ADR2 pushbutton switch.	The OFF legend of ADR2 pushbutton switch goes off.
Push ADR1 pushbutton switch.	The OFF legend of ADR1 pushbutton switch comes on.
4.On the MCDU:
Push the line key adjacent to ADR2 indication. Do the same test as specified in Para. 2 and 3.	Same results on the F/O PFD.
5.On ADIRS MSU panel 41VU:
Push ADR3 pushbutton switch.	On ADIRS MSU panel 41VU, the OFF legend of ADR3 pushbutton switch goes off.
6.On SWITCHING panel 8VU: Set the AIR DATA selector switch to CAPT/3.	On the CAPT PFD, the speed and altitude indications from the ADR3 come into view.
7.On ADIRS MSU panel 41VU:
Push ADR2 pushbutton switch.	On ADIRS MSU panel 41VU, the OFF legend of ADR2 pushbutton switch comes on.
8.On the MCDU:
Push the line key adjacent to ADR3 indication. Do the same test as specified in Para. 2 and 3.	Same results on the CAPT PFD.
9.On ADIRS MSU panel 41VU:
Push ADR1 and ADR2 pushbutton switches.	On ADIRS MSU panel 41VU, the OFF legend of ADR1 and ADR2 pushbutton switches goes off.
10.On SWITCHING panel 8VU: Set the AIR DATA selector switch to NORM.

Subtask 34-13-00-710-052-J ** ON A/C NOT FOR ALL

F. OVERSPEED Warning VMO/MMO 2 (L/G DOWN VMO/MMO SELECTION Switch 22FP at L/G DOWN)

NOTE: During this test alerts can come into view. If this occurs, ignore these alerts.

ACTION	RESULT
1.In the avionics compartment, on plate-relay 188VU: Remove the warning lockwire from the safety cover of the L/G DOWN VMO/MMO SELECTION switch Set the switch to L/G DOWN.
2.On ADIRS MSU panel 41VU:	On ADIRS MSU panel 41VU:
Push ADR2 and ADR3 pushbutton switches.	The OFF legend of ADR2 and ADR3 pushbutton switches comes on.
3.On the MCDU:	On the MCDU:
Push the line key adjacent to ADR1 indication.	ADR1 page comes into view.
Push the line key adjacent to the OUTPUT TESTS indication.	ADR1 OUTPUT TESTS page comes into view.
Push the line key adjacent to the INTERFACE TEST indication.	ADR1 INTERFACE TEST 1/2 page comes into view.
On the keyboard push the NEXT PAGE function key.	ADR1 INTERFACE TEST 2/2 page comes into view.
Push the line key adjacent to the START TEST indication. (Ref. AMM TASK 34-13-00-740-002).	From 0 to 10 seconds, ignore the warnings and indications. From 10 seconds and more, on the CAPT(F/O) PFD, the speed increases to 367.7 Kts (and altitude increases to 10000 ft). When the speed scale goes across 80 Kts, push the RCL button on the ECAM panel. NOTE: When you do this, alerts can come into view. If this occurs, ignore these alerts. When the value is 239 Kts: On the upper ECAM display unit, this indication is shown: OVERSPEED VMO/MMO 235/.60 On F/O and CAPT glareshield panels 130VU and 131VU, the MASTER WARN lights flash. You can hear the continuous repetitive chime aural warning.
Push the line key adjacent to the RETURN indication.	The test procedure stops. The warnings above stop.
Push the line key adjacent to the RETURN indication.	The SYSTEM REPORT/TEST/NAV page comes into view.
4.On ADIRS MSU panel 41VU:	On ADIRS MSU panel 41VU:
Push ADR2 pushbutton switch.	The OFF legend of ADR2 pushbutton switch goes off.
Push ADR1 pushbutton switch.	The OFF legend of ADR1 pushbutton switch comes on.
5.On the MCDU:
Push the line key adjacent to ADR2 indication. Do the same test as specified in Para. 3 and 4.	Same results on the F/O PFD.
6.On ADIRS MSU panel 41VU:
Push ADR3 pushbutton switch.	On ADIRS MSU panel 41VU, the OFF legend of ADR3 pushbutton switch goes off.
7.On SWITCHING panel 8VU: Set the AIR DATA selector switch to CAPT/3.	On the CAPT PFD, the speed and altitude indications from ADR3 come into view.
8.On ADIRS MSU panel 41VU:
Push ADR2 pushbutton switch.	On ADIRS MSU panel 41VU, the OFF legend of ADR2 pushbutton switch comes on.
9.On the MCDU:
Push the line key adjacent to ADR3 indication. Do the same test as specified in Para. 3 and 4.	Same results on the CAPT PFD.
10.On ADIRS MSU panel 41VU:
Push ADR1 and ADR2 pushbutton switches.	On ADIRS MSU panel 41VU, the OFF legend of ADR1 and ADR2 pushbutton switches goes off.
11.On SWITCHING panel 8VU: Set the AIR DATA selector switch to NORM.
12.In the avionics compartment, on plate-relay 188VU: Set the L/G DOWN VMO/MMO SELECTION switch to NORM. Lock the safety cover and secure it with warning lockwire.

5. Close-up
Subtask 34-13-00-860-062-A

A. Put the aircraft back to its initial configuration.
(1) Do the ADIRS stop procedure (Ref. AMM TASK 34-10-00-860-005).
(2) On the overhead panel :

On the FLT CTL panels 23VU and 24VU, make sure that the FAC, ELAC and SEC pushbutton switches are pushed (on). The OFF legends are off.

(3) Do the EIS stop procedure (Ref. AMM TASK 31-60-00-860-002).
(4) On the MCDU, push the line select key adjacent to the RETURN indication until the CFDS menu page comes into view.

Subtask 34-13-00-865-065-A

B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	AUTO FLT/FAC1/28VDC	5CC1	B04
** ON A/C NOT FOR ALL
49VU	AUTO FLT/FAC1/28VDC	5CC1	H10
** ON A/C ALL
105VU	ELEC/CSM/G /EV AUTO/SPLY	7XE	C01
121VU	AUTO FLT/FAC2/28VDC	5CC2	M19

Subtask 34-13-00-860-060-A

C. De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).

Subtask 34-13-00-410-052-A

D. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the protective cover on the battery power center 105VU.
(3) Tighten the two screws.
(4) Close the access door 822.
(5) Remove the access platform(s).

[Rev.10 from 2021] 2026.04.02 06:23:08 UTC