Operational Check of Decoder/Encoder Units Essential Power Supply and Decoder/Encoder Units-A Cut Off Function

TASK 23-73-00-710-038-A
Operational Check of Decoder/Encoder Units Essential Power Supply and Decoder/Encoder Units-A Cut Off Function

ZONE: 200

1. Reason for the Job
Refer to the MPD TASK: 237300-04
OPERATIONAL CHECK OF DECODER/ENCODER UNITS ESSENTIAL POWER SUPPLY, AND DECODER/ENCODER UNITS-A CUT OFF FUNCTION
This procedure gives the instructions necessary to make sure the operation of the CIDS with normal or essential power supply.
2. Job Set-up Information
A. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
200	UPPER HALF FUSELAGE

B. Referenced Information

REFERENCE	DESIGNATION
TASK 23-73-00-861-001-A	Energize the Cabin Intercommunication Data System (CIDS)
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 31-32-00-860-003-A	Procedure to Get Access to the SYSTEM REPORT/TEST/COM Page
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 23-73-00-860-171-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 (upper ECAM DU and lower ECAM DU only)
(Ref. AMM TASK 31-60-00-860-001).
(3) Make sure that the Cabin Intercommunication Data System (CIDS) is energized
(Ref. AMM TASK 23-73-00-861-001).
(4) Energize the Centralized Fault Display System (CFDS)
(Ref. AMM TASK 31-32-00-860-003).
(5) Make sure that a minimum of one cabin door is open.

Subtask 23-73-00-865-189-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	L/G/LGCIU/SYS1/NORM	1GA	C09
121VU	HYDRAULIC/LGCIU/SYS2	2GA	Q35

4. Procedure
Subtask 23-73-00-710-309-B ** ON A/C NOT FOR ALL

A. Do this test

ACTION	RESULT
1.On the CFDS-MCDU, on the SYSTEM REPORT/COM page:	On the CFDS-MCDU:
push the CIDS1 related line select key.	the CIDS1 page shows.
2.In the cockpit, on the circuit breaker panel 49VU:
open the C/Bs: DEU A ESS/FWD R 158RH DEU A ESS/FWD L 159RH DEU A ESS/AFT R 172RH DEU A ESS/AFT L 179RH DEU B ESS 153RH.
3.On the CFDS-MCDU:	On the CFDS-MCDU:
push the GND SCANNING line select key.	the CIDS1 GROUND SCANNING page with the message IN PROGRESS 180S shows.
	after approximately 3 minutes the message NO FAULT DETECTED shows.
push the RETURN line select key.	the CIDS1 page shows.
4.From the forward attendant station in the cabin:	Through all loudspeakers in the cabin and in the lavatories:
make an announcement through the handset (push the PTT button only).	you hear the announcement.
5.In the cockpit, on the circuit breaker panel 121VU:
open the C/Bs: DEU A NORM/L FWD 163RH DEU A NORM/R FWD 164RH DEU A NORM/L AFT 167RH DEU A NORM/R AFT 168RH DEU B NORM 162RH.
6.On the CFDS-MCDU:	On the CFDS-MCDU:
push the GND SCANNING line select key.	the CIDS1 GROUND SCANNING page with the message IN PROGRESS 180S shows.
	after approximately 3 minutes the DEU-A/B, CIDS TOP BUS XX / DIR 1 (101RH), CIDS MID BUS X / DIR 1 (101RH) failure message shows.
push the RETURN line select key.	the CIDS1 page shows.
7.From the forward attendant station in the cabin:	Through all loudspeakers in the cabin and in the lavatories:
make an announcement through the handset (push the PTT button only).	you do not hear the announcement.
8.In the cockpit, on the circuit breaker panel 49VU:
close the C/Bs: DEU A ESS/FWD R 158RH DEU A ESS/FWD L 159RH DEU A ESS/AFT R 172RH DEU A ESS/AFT L 179RH DEU B ESS 153RH.
9.On the CFDS-MCDU:	On the CFDS-MCDU:
push the GND SCANNING line select key.	the CIDS1 GROUND SCANNING page with the message IN PROGRESS 180S shows.
	after approximately 3 minutes the DEU-A/B, CIDS TOP BUS XX / DIR 1 (101RH), CIDS MID BUS X / DIR 1 (101RH) message is off.
10.From the forward attendant station in the cabin:	Through all loudspeakers in the cabin and in the lavatories:
make an announcement through the handset (push the PTT button only).	you hear the announcement.
11.In the cockpit, on the circuit breaker panel 121VU:
open the C/Bs: DIR NORM/1 151RH DIR NORM/2 156RH
12.On the CFDS-MCDU:	On the CFDS-MCDU:
push the GND SCANNING line select key.	the CIDS1 GROUND SCANNING page with the message IN PROGRESS 180S shows.
	after approximately 3 minutes the DIR1 (101RH) 28VDC2 SPLY failure message shows.
13.From the forward attendant station in the cabin:	Through all loudspeakers in the cabin and in the lavatories:
make an announcement through the handset (push the PTT button only).	you hear the announcement.
14.In the cockpit, on the circuit breaker panel 121VU:
close the C/Bs: DEU A NORM/L FWD 163RH DEU A NORM/R FWD 164RH DEU A NORM/L AFT 167RH DEU A NORM/R AFT 168RH DEU B NORM 162RH DIR NORM/1 151RH DIR NORM/2 156RH
15.On the CFDS-MCDU:	On the CFDS-MCDU:
push the GND SCANNING line select key.	the CIDS1 GROUND SCANNING page with the message IN PROGRESS 180S shows.
	after approximately 3 minutes the DEU message NO FAULT DETECTED shows.
16.From the forward attendant station in the cabin:	Through all loudspeakers in the cabin and in the lavatories:
make an announcement through the handset (push the PTT button only).	you hear the announcement.

Subtask 23-73-00-710-309-C ** ON A/C NOT FOR ALL

A. Do this test

ACTION	RESULT
1.On the CFDS-MCDU, on the SYSTEM REPORT/COM page:	On the CFDS-MCDU:
push the CIDS1 related line select key.	the CIDS1 page shows.
2.In the cockpit, on the circuit breaker panel 49VU:
open the C/Bs: DEU A ESS/FWD R 158RH DEU A ESS/FWD L 159RH DEU A ESS/MID R 196RH DEU A ESS/MID L 195RH DEU A ESS/AFT R 172RH DEU A ESS/AFT L 179RH DEU B ESS 153RH.
3.On the CFDS-MCDU:	On the CFDS-MCDU:
push the GND SCANNING line select key.	the CIDS1 GROUND SCANNING page with the message IN PROGRESS 180S shows.
	after approximately 3 minutes the message NO FAULT DETECTED shows.
push the RETURN line select key.	the CIDS1 page shows.
4.From the FWD attendant station in the cabin:	Through all loudspeakers in the cabin and in the lavatories:
do an announcement through the handset (push the PTT button only).	you hear the announcement.
5.In the cockpit, on the circuit breaker panel 121VU:
open the C/Bs: DEU A NORM/FWD L 163RH DEU A NORM/FWD R 164RH DEU B NORM/FWD 193RH.
6.In the aft cabin, on the circuit breaker panel 2001VU:
open the C/Bs: DEU A NORM/MID L 197RH DEU A NORM/MID R 198RH DEU A NORM/AFT L 173RH DEU A NORM/AFT R 174RH DEU B NORM/AFT 194RH.
7.On the CFDS-MCDU:	On the CFDS-MCDU:
push the GND SCANNING line select key.	the CIDS1 GROUND SCANNING page with the message IN PROGRESS 180S shows.
	after approximately 3 minutes the DEU-A/B, CIDS TOP BUS XX / DIR 1 (101RH), CIDS MID BUS X / DIR 1 (101RH) failure message shows.
push the RETURN line select key.	the CIDS1 page shows.
8.From the FWD attendant station in the cabin:	Through all loudspeakers in the cabin and in the lavatories:
do an announcement through the handset (push the PTT button only).	you do not hear the announcement.
9.In the cockpit, on the circuit breaker panel 49VU:
close the C/Bs: DEU A ESS/FWD R 158RH DEU A ESS/FWD L 159RH DEU A ESS/MID R 196RH DEU A ESS/MID L 195RH DEU A ESS/AFT R 172RH DEU A ESS/AFT L 179RH DEU B ESS 153RH.
10.On the CFDS-MCDU:	On the CFDS-MCDU:
push the GND SCANNING line select key.	the CIDS1 GROUND SCANNING page with the message IN PROGRESS 180S shows.
	after approximately 3 minutes the DEU-A/B, CIDS TOP BUS XX / DIR 1 (101RH), CIDS MID BUS X / DIR 1 (101RH) message is off.
11.From the FWD attendant station in the cabin:	Through all loudspeakers in the cabin and in the lavatories:
do an announcement through the handset (push the PTT button only).	you hear the announcement.
12.In the cockpit, on the circuit breaker panel 121VU:
open the C/Bs: DIR NORM/1 151RH DIR NORM/2 156RH.
13.On the CFDS-MCDU:	On the CFDS-MCDU:
push the GND SCANNING line select key.	the CIDS1 GROUND SCANNING page with the message IN PROGRESS 180S shows.
	after approximately 3 minutes the DIR1 (101RH) 28VDC2 SPLY failure message shows.
14.From the FWD attendant station in the cabin:	Through all loudspeakers in the cabin and in the lavatories:
do an announcement through the handset (push the PTT button only).	you hear the announcement.
15.In the cockpit, on the circuit breaker panel 121VU:
close the C/Bs: DEU A NORM/FWD L 163RH DEU A NORM/FWD R 164RH DEU B NORM/FWD 193RH DIR NORM/1 151RH DIR NORM/2 156RH.
16.In the aft cabin, on the circuit breaker panel 2001VU:
close the C/Bs: DEU A NORM/MID L 197RH DEU A NORM/MID R 198RH DEU A NORM/AFT L 173RH DEU A NORM/AFT R 174RH DEU B NORM/AFT 194RH.
17.On the CFDS-MCDU:	On the CFDS-MCDU:
push the GND SCANNING line select key.	the CIDS1 GROUND SCANNING page with the message IN PROGRESS 180S shows.
	after approximately 3 minutes the DEU message NO FAULT DETECTED shows.
18.From the FWD attendant station in the cabin:	Through all loudspeakers in the cabin and in the lavatories:
do an announcement through the handset (push the PTT button only).	you hear the announcement.

Subtask 23-73-00-710-309-E ** ON A/C NOT FOR ALL

A. Do this test

ACTION	RESULT
1.On the CFDS-MCDU, on the SYSTEM REPORT/COM page:	On the CFDS-MCDU:
push the CIDS1 related line select key.	the CIDS1 page shows.
2.In the cockpit, on the circuit breaker panel 49VU:
open the C/Bs: DEU A ESS/FWD R 158RH DEU A ESS/FWD L 159RH DEU A ESS/AFT R 172RH DEU A ESS/AFT L 179RH DEU B ESS 153RH.
3.On the CFDS-MCDU:	On the CFDS-MCDU:
push the GND SCANNING line select key.	the CIDS1 GROUND SCANNING page with the message IN PROGRESS 180S shows.
	after approximately 3 minutes the message NO FAULT DETECTED shows.
push the RETURN line select key.	the CIDS1 page shows.
4.From the FWD attendant station in the cabin:	Through all loudspeakers in the cabin and in the lavatories:
do an announcement through the handset (push the PTT button only).	you hear the announcement.
5.In the cockpit, on the circuit breaker panel 121VU:
open the C/Bs: DEU A NORM/L FWD 163RH DEU A NORM/R FWD 164RH DEU A NORM/L AFT 167RH DEU A NORM/R AFT 168RH DEU A BAT/R FWD 258RH DEU A BAT/L FWD 259RH DEU A BAT/R AFT 272RH DEU A BAT/L AFT 279RH DEU B NORM 162RH DEU B BAT 143RH.
6.On the CFDS-MCDU:	On the CFDS-MCDU:
push the GND SCANNING line select key.	the CIDS1 GROUND SCANNING page with the message IN PROGRESS 180S shows.
	after approximately 3 minutes the DEU-A/B, CIDS TOP BUS XX / DIR 1 (101RH), CIDS MID BUS X / DIR 1 (101RH) failure message shows.
push the RETURN line select key.	the CIDS1 page shows.
7.From the FWD attendant station in the cabin:	Through all loudspeakers in the cabin and in the lavatories:
do an announcement through the handset (push the PTT button only).	you do not hear the announcement.
8.In the cockpit, on the circuit breaker panel 49VU:
close the C/Bs: DEU A ESS/FWD R 158RH DEU A ESS/FWD L 159RH DEU A ESS/AFT R 172RH DEU A ESS/AFT L 179RH DEU B ESS 153RH.
9.On the CFDS-MCDU:	On the CFDS-MCDU:
push the GND SCANNING line select key.	the CIDS1 GROUND SCANNING page with the message IN PROGRESS 180S shows.
	after approximately 3 minutes the DEU-A/B, CIDS TOP BUS XX / DIR 1 (101RH), CIDS MID BUS X / DIR 1 (101RH) message is off.
10.From the FWD attendant station in the cabin:	Through all loudspeakers in the cabin and in the lavatories:
do an announcement through the handset (push the PTT button only).	you hear the announcement.
11.In the cockpit, on the circuit breaker panel 121VU:
open the C/Bs: DIR NORM/1 151RH DIR NORM/2 156RH
12.On the CFDS-MCDU:	On the CFDS-MCDU:
push the GND SCANNING line select key.	the CIDS1 GROUND SCANNING page with the message IN PROGRESS 180S shows.
	after approximately 3 minutes the DIR1 (101RH) 28VDC2 SPLY failure message shows.
13.From the FWD attendant station in the cabin:	Through all loudspeakers in the cabin and in the lavatories:
do an announcement through the handset (push the PTT button only).	you hear the announcement.
14.In the cockpit, on the circuit breaker panel 121VU:
close the C/Bs: DEU A NORM/L FWD 163RH DEU A NORM/R FWD 164RH DEU A NORM/L AFT 167RH DEU A NORM/R AFT 168RH DEU A BAT/R FWD 258RH DEU A BAT/L FWD 259RH DEU A BAT/R AFT 272RH DEU A BAT/L AFT 279RH DEU B NORM 162RH DEU B BAT 143RH DIR NORM/1 151RH DIR NORM/2 156RH.
15.On the CFDS-MCDU:	On the CFDS-MCDU:
push the GND SCANNING line select key.	the CIDS1 GROUND SCANNING page with the message IN PROGRESS 180S shows.
	after approximately 3 minutes the DEU message NO FAULT DETECTED shows.
16.From the FWD attendant station in the cabin:	Through all loudspeakers in the cabin and in the lavatories:
do an announcement through the handset (push the PTT button only).	you hear the announcement.

Subtask 23-73-00-710-309-F ** ON A/C NOT FOR ALL

A. Do this test

ACTION	RESULT

1.On the CFDS-MCDU, on the SYSTEM REPORT/COM page:	On the CFDS-MCDU:
push the CIDS1 related line select key.	the CIDS1 page shows.
2.In the cockpit, on the circuit breaker panel 49VU:
open the C/Bs: DEU A ESS/FWD R 158RH DEU A ESS/FWD L 159RH DEU A ESS/MID R 196RH DEU A ESS/MID L 195RH DEU A ESS/AFT R 172RH DEU A ESS/AFT L 179RH DEU B ESS 153RH.
3.On the CFDS-MCDU:	On the CFDS-MCDU:
push the GND SCANNING line select key.	the CIDS1 GROUND SCANNING page with the message IN PROGRESS 180S shows.
	after approximately 3 minutes the message NO FAULT DETECTED shows.
push the RETURN line select key.	the CIDS1 page shows.
4.From the FWD attendant station in the cabin:	Through all loudspeakers in the cabin and in the lavatories:
do an announcement through the handset (push the PTT button only).	you hear the announcement.
5.In the cockpit, on the circuit breaker panel 121VU:
open the C/Bs: DEU A NORM/FWD L 163RH DEU A NORM/FWD R 164RH DEU B NORM/FWD 193RH DEU A BAT/FWD R 258RH DEU A BAT/FWD L 259RH DEU A BAT/MID R 296RH DEU A BAT/MID L 295RH DEU A BAT/AFT R 272RH DEU A BAT/AFT L 279RH DEU B BAT 143RH.
6.In the aft cabin, on the circuit breaker panel 2001VU:
open the C/Bs: DEU A NORM/MID L 197RH DEU A NORM/MID R 198RH DEU A NORM/AFT L 173RH DEU A NORM/AFT R 174RH DEU B NORM/AFT 194RH.
7.On the CFDS-MCDU:	On the CFDS-MCDU:
push the GND SCANNING line select key.	the CIDS1 GROUND SCANNING page with the message IN PROGRESS 180S shows.
	after approximately 3 minutes the DEU-A/B, CIDS TOP BUS XX / DIR 1 (101RH), CIDS MID BUS X / DIR 1 (101RH) failure message shows.
push the RETURN line select key.	the CIDS1 page shows.
8.From the FWD attendant station in the cabin:	Through all loudspeakers in the cabin and in the lavatories:
do an announcement through the handset (push the PTT button only).	you do not hear the announcement.
9.In the cockpit, on the circuit breaker panel 49VU:
close the C/Bs: DEU A ESS/FWD R 158RH DEU A ESS/FWD L 159RH DEU A ESS/MID R 196RH DEU A ESS/MID L 195RH DEU A ESS/AFT R 172RH DEU A ESS/AFT L 179RH DEU B ESS 153RH.
10.On the CFDS-MCDU:	On the CFDS-MCDU:
push the GND SCANNING line select key.	the CIDS1 GROUND SCANNING page with the message IN PROGRESS 180S shows.
	after approximately 3 minutes the DEU-A/B, CIDS TOP BUS XX / DIR 1 (101RH), CIDS MID BUS X / DIR 1 (101RH) message is off.
11.From the FWD attendant station in the cabin:	Through all loudspeakers in the cabin and in the lavatories:
do an announcement through the handset (push the PTT button only).	you hear the announcement.
12.In the cockpit, on the circuit breaker panel 121VU:
open the C/Bs: DIR NORM/1 151RH DIR NORM/2 156RH.
13.On the CFDS-MCDU:	On the CFDS-MCDU:
push the GND SCANNING line select key.	the CIDS1 GROUND SCANNING page with the message IN PROGRESS 180S shows.
	after approximately 3 minutes the DIR1 (101RH) 28VDC2 SPLY failure message shows.
14.From the FWD attendant station in the cabin:	Through all loudspeakers in the cabin and in the lavatories:
do an announcement through the handset (push the PTT button only).	you hear the announcement.
15.In the cockpit, on the circuit breaker panel 121VU:
close the C/Bs: DEU A NORM/FWD L 163RH DEU A NORM/FWD R 164RH DEU B NORM/FWD 193RH DEU A BAT/FWD R 258RH DEU A BAT/FWD L 259RH DEU A BAT/MID R 296RH DEU A BAT/MID L 295RH DEU A BAT/AFT R 272RH DEU A BAT/AFT L 279RH DEU B BAT 143RH DIR NORM/1 151RH DIR NORM/2 156RH.
16.In the aft cabin, on the circuit breaker panel 2001VU:
close the C/Bs: DEU A NORM/MID L 197RH DEU A NORM/MID R 198RH DEU A NORM/AFT L 173RH DEU A NORM/AFT R 174RH DEU B NORM/AFT 194RH.
17.On the CFDS-MCDU:	On the CFDS-MCDU:
push the GND SCANNING line select key.	the CIDS1 GROUND SCANNING page with the message IN PROGRESS 180S shows.
	after approximately 3 minutes the DEU message NO FAULT DETECTED shows.
18.From the FWD attendant station in the cabin:	Through all loudspeakers in the cabin and in the lavatories:
do an announcement through the handset (push the PTT button only).	you hear the announcement.

Subtask 23-73-00-710-309-G ** ON A/C NOT FOR ALL

A. Test

ACTION	RESULT
1.On the CFDS-MCDU, on the SYSTEM REPORT/COM page:	On the CFDS-MCDU:
Push the CIDS1 related line select key.	The CIDS1 page comes on.
2.In the cockpit, on circuit breaker panel 49VU, open the C/Bs:
DEU A ESS/1 L 463RH DEU A ESS/1 R 464RH DEU A ESS/2 L 465RH DEU A ESS/2 R 466RH DEU B ESS/L 419RH DEU B ESS/R 420RH.
3.On the CFDS-MCDU:	On the CFDS-MCDU:
Push the GND SCANNING line select key.	The CIDS1 GROUND SCANNING page with the message "IN PROGRESS 180S" comes on.
	After approximately 3 minutes the message "NO FAULT DETECTED" comes on.
Push the RETURN line select key.	The CIDS1 page comes on.
4.From the forward attendant station in the cabin:	Through all loudspeakers in the cabin and in the lavatories:
Do an announcement through the handset (push the PTT button only).	You hear the announcement.
5.In the cockpit, on circuit breaker panel 121VU, open the C/Bs:	On the ECAM upper display unit:
DEU A NORM/L FWD 663RH DEU A NORM/R FWD 664RH DEU A NORM/L MID 665RH DEU A NORM/R MID 666RH DEU A NORM/L AFT 667RH DEU A NORM/R AFT 668RH DEU B NORM/L 619RH DEU B NORM/R 620RH.	The message "CIDS 1+2 FAULT" comes on.
	In the cockpit:
	You hear a single chime.
6.On the CFDS-MCDU:	On the CFDS-MCDU:
Push the GND SCANNING line select key.	The CIDS1 GROUND SCANNING page with the message "IN PROGRESS 180S" comes on.
	After approximately 3 minutes the "DEU-A/B, CIDS TOP BUS XX / DIR 1 (101RH), CIDS MID BUS X / DIR 1 (101RH)" failure message comes on.
Push the RETURN line select key.	The CIDS1 page comes on.
7.From the forward attendant station in the cabin:	Through all loudspeakers in the cabin and in the lavatories:
Do an announcement through the handset (push the PTT button only).	You do not hear the announcement.
8.In the cockpit, on circuit breaker panel 49VU, close the C/Bs:	On the ECAM upper display unit:
DEU A ESS/1 L 463RH DEU A ESS/1 R 464RH DEU A ESS/2 L 465RH DEU A ESS/2 R 466RH DEU B ESS/L 419RH DEU B ESS/R 420RH.	The message "CIDS 1+2 FAULT" goes off.
9.On the CFDS-MCDU:	On the CFDS-MCDU:
Push the GND SCANNING line select key.	The CIDS1 GROUND SCANNING page with the message "IN PROGRESS 180S" comes on.
	After approximately 3 minutes the "DEU-A/B, CIDS TOP BUS XX / DIR 1 (101RH), CIDS MID BUS X / DIR 1 (101RH)" message goes off.
10.From the forward attendant station in the cabin:	Through all loudspeakers in the cabin and in the lavatories:
Do an announcement through the handset (push the PTT button only).	You hear the announcement.
11.In the cockpit, on circuit breaker panel 121VU, open the C/Bs:
DIR NORM/1 151RH DIR NORM/2 156RH.
12.On the CFDS-MCDU:	On the CFDS-MCDU:
Push the GND SCANNING line select key.	The CIDS1 GROUND SCANNING page with the message "IN PROGRESS 180S" comes on.
	After approximately 3 minutes the "DIR1 (101RH) 28VDC2 SPLY" failure message comes on.
13.From the forward attendant station in the cabin:	Through all loudspeakers in the cabin and in the lavatories:
Do an announcement through the handset (push the PTT button only).	You hear the announcement.
14.In the cockpit, on circuit breaker panel 121VU, close the C/Bs:
DEU A NORM/L FWD 663RH DEU A NORM/R FWD 664RH DEU A NORM/L MID 665RH DEU A NORM/R MID 666RH DEU A NORM/L AFT 667RH DEU A NORM/R AFT 668RH DEU B NORM/L 619RH DEU B NORM/R 620RH DIR NORM/1 151RH DIR NORM/2 156RH.
15.On the CFDS-MCDU:	On the CFDS-MCDU:
Push the GND SCANNING line select key.	The CIDS1 GROUND SCANNING page with the message "IN PROGRESS 180S" comes on.
	After approximately 3 minutes the DEU message "NO FAULT DETECTED" comes on.
16.From the forward attendant station in the cabin:	Through all loudspeakers in the cabin and in the lavatories:
Do an announcement through the handset (push the PTT button only).	You hear the announcement.

5. Close-up
Subtask 23-73-00-860-172-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] 2026.03.31 23:17:10 UTC