W DOC AIRBUS | AMM A320F

Operational Test of the ATSU

TASK 46-21-00-710-001-A
Operational Test of the ATSU

ZONE: 210
1. Reason for the Job
Self explanatory
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
1
MICROPHONE 150 OHMS - HAND
 B. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
210
CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD
 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
TASK 34-10-00-860-002-A
ADIRS Start Procedure
TASK 34-10-00-860-005-A
ADIRS Stop Procedure
F MCDU Access to COMM MENU Page ** ON A/C NOT FOR ALL
F VHF3 DATA MODE and VHF3 VOICE DIRECTORY Pages
F VHF3 DATA MODE and VHF3 VOICE DIRECTORY Pages ** ON A/C NOT FOR ALL
F MCDU Access to COMM MENU Page ** ON A/C NOT FOR ALL
F VHF3 DATA MODE Page ** ON A/C NOT FOR ALL
F COMM STATUS Page ** ON A/C NOT FOR ALL
F MCDU Access to DATALINK STATUS
3. Job Set-up
Subtask 46-21-00-861-052-A
A. Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
Subtask 46-21-00-865-109-A
B. Make sure that this(these) circuit breaker(s) is(are) closed:
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VUAUTO FLT/MCDU/111CA1B01
** ON A/C ALL
49VUSDAC/1/SPLY3WVF04
49VUFWS/FWC1/SPLY3WWF01
49VUCOM/RMP/12RG1G10
** ON A/C NOT FOR ALL
49VUAUTO FLT/MCDU/111CA1H07
** ON A/C NOT FOR ALL
121VUCOM NAV/VHF/32RC3L05
** ON A/C NOT FOR ALL
121VUCFDS/CFDIU/SPLY2TWJ18
121VUATSU 13TX1L16
121VUATSU 1/SWTG5TX1L15
** ON A/C NOT FOR ALL
121VUAIDS/DMU4TVK15
** ON A/C ALL
121VUCOM NAV/RMP/22RG2L02
121VUAUTO FLT/MCDU/211CA2N20
121VUEIS/FWC2/SPLY2WWQ07
** ON A/C NOT FOR ALL
121VUCOM/VHF/32RC3L05
** ON A/C NOT FOR ALL
121VUCOM NAV/RMP/32RG3L03
** ON A/C NOT FOR ALL
121VUCFDS/CFDIU/SPLY2TWJ41
121VUATSU 13TX1K43
121VUATSU 1/SWTG5TX1K42
Subtask 46-21-00-860-056-A
C. Aircraft Maintenance Configuration
   (1) Do the ADIRS start procedure (Ref. AMM TASK 34-10-00-860-002).
   (2) Do the EIS start procedure (Ref. AMM TASK 31-60-00-860-001).
   (3) On CAPT LIGHTING/LOUD SPEAKER control panel 301VU and F/O LIGHTING/LOUD SPEAKER control panel 500VU, turn the LOUD SPEAKER potentiometer clockwise to the middle position.
   (4) At the CAPT (F/O, Third Occupant) station, connect the MICROPHONE 150 OHMS - HAND to the jack panel.
4. Procedure
NOTE: You can do the test related to the VHF3 VOICE DIRECTORY page (if applicable), only if the AOC application hosted in the ATSU gives the list of frequencies.
Subtask 46-21-00-710-052-A
A. Operational Test of the ATSU Failure Warning
ACTION
RESULT
1.On RMP1 (2, 3):
  • Set the ON/OFF switch to ON.
  • Push the VHF3 pushbutton switch.
  • Push the transfer pushbutton switch (double arrow) located between the two windows to show the ACARS or DATA indication in the ACTIVE window.

2.On MCDU1 (2, 3):
  • Push the MCDU MENU mode key.
On MCDU1 (2, 3):
  • The MCDU MENU page comes into view.

On the MCDU MENU page:
  • The ATSU indication is shown.
3.Open circuit breakers 3TX1 and 5TX1.
On the upper ECAM DU:
  • The COM ACARS FAULT or DATALINK ATSU FAULT warning message comes into view in the bottom left section.

On the MCDU MENU page:
  • The ATSU indication goes out of view.

On RMP1 (2, 3):
  • Dashes are shown in the ACTIVE window.
4.Close circuit breakers 3TX1 and 5TX1.
On the upper ECAM DU:
  • The COM ACARS FAULT or DATALINK ATSU FAULT warning message goes out of view after approximately one minute.

On RMP1 (2, 3):
  • The dashes go out of view in the ACTIVE window.
  • The ACARS or DATA indication comes into view in the ACTIVE window.

On the MCDU MENU page:
  • The ATSU prompt comes into view after approximately one minute.
NOTE: The ATSU controls the VHF3 frequency at the end of the ATSU power up.
Subtask 46-21-00-710-053-C ** ON A/C NOT FOR ALL
B. Operational Test of the VDR3 Switching to the DATA Mode with Manual Selection of a Datalink Service Provider on the MCDU
ACTION
RESULT
1.On MCDU 1(2, 3):
  • Push the MCDU MENU mode key.
On MCDU 1(2, 3):
  • The MCDU MENU page comes into view.
2.On the MCDU MENU page:
On MCDU 1(2, 3):
  • The ATSU DATALINK page comes into view.
3.On the ATSU DATALINK page:
  • Push the line key adjacent to the COMM MENU indication.
On MCDU 1(2, 3):
  • The COMM MENU page comes into view.
4.On the COMM MENU page:
On MCDU 1 2, 3):
  • The VHF3 DATA MODE page comes into view.
5.On the VHF3 DATA MODE page:
  • Push the line key adjacent to the name of the data service-provider available in the area.
  • Make sure that the airline subscribed to the selected data service-provider.
On the VHF3 DATA MODE page:
  • The * indication adjacent to the data service-provider indication goes out of view.
  • The SCAN indication, the applicable data service-provider name and the related frequency are shown at the top section of the page.
NOTE: If you set the data service provider manually (as shown in this procedure), the SCAN indication becomes MANUAL after the aircraft is connected to the selected data service-provider.
If the data service provider is selected by the ATSU automatically, the SCAN indication comes into view. The SCAN indication becomes AUTO when the aircraft is connected to the selected data service-provider.
6.On the VHF3 DATA MODE page:
  • Push the line key adjacent to the RETURN indication.
On MCDU 1(2, 3):
  • The COMM MENU page comes into view.
7.On the COMM MENU page:
  • Push the line key adjacent to the VHF3 VOICE DIRECTORY indication.
On MCDU 1(2, 3):
  • The VHF3 VOICE DIRECTORY page comes into view.
  • The DATA indication is shown in the top section of the page.
NOTE: The ATSU controls the VHF3 frequency in DATA mode.
Subtask 46-21-00-710-053-D ** ON A/C NOT FOR ALL
B. Operational Test of the VDR3 Switching to the DATA Mode with Manual Selection of a Datalink Service Provider on the MCDU
ACTION
RESULT
1.On MCDU1 (2, 3):
  • Push the MCDU MENU mode key.
On MCDU1 (2, 3):
  • The MCDU MENU page comes into view.
2.On the MCDU MENU page:
On MCDU1 (2, 3):
  • The ATSU DATALINK page comes into view.
3.On the ATSU DATALINK page:
  • Push the line key adjacent to the COMM MENU indication.
On MCDU1 (2, 3):
  • The COMM MENU page comes into view.
4.On the COMM MENU page:
  • Push the line key adjacent to the VHF3 DATA MODE indication
    F VHF3 DATA MODE Page ** ON A/C NOT FOR ALL
On MCDU1 (2, 3):
  • The VHF3 DATA MODE page comes into view.
5.On the VHF3 DATA MODE page:
  • Push the line key adjacent to the name of the data service-provider available in the area.
  • Make sure that the airline subscribed to the selected data service-provider.
On the VHF3 DATA MODE page:
  • The * indication adjacent to the name of the data service-provider goes out of view.
  • The SCAN indication, the applicable data service-provider name and the related frequency are shown on the top section of the page.
NOTE: If you set the data service provider manually (as shown in this procedure), the SCAN indication becomes MANUAL after the aircraft is connected to the selected data service-provider.
If the data service provider is selected by the ATSU automatically, the SCAN indication comes into view. The SCAN indication becomes AUTO when the aircraft is connected to the selected data service-provider.
6.On the VHF3 DATA MODE page:
  • Push the line key adjacent to the RETURN indication.
On MCDU1 (2, 3):
  • The COMM MENU page comes into view.
Subtask 46-21-00-710-054-C ** ON A/C NOT FOR ALL
C. Operational Test of the VDR3 Switching from the DATA Mode to the VOICE Mode with Manual Selection of a Frequency on the MCDU
ACTION
RESULT
1.On MCDU1 (2, 3):
  • Push the MCDU MENU mode key.
On MCDU1 (2, 3):
  • The MCDU MENU page comes into view.
2.On the MCDU MENU page:
  • Push the line key adjacent to the ATSU indication.
On MCDU1 (2, 3):
  • The ATSU DATALINK page comes into view.
3.On the ATSU DATALINK page:
  • Push the line key adjacent to the COMM MENU indication.
On MCDU1 (2, 3):
  • The COMM MENU page comes into view.
4.On the COMM MENU page:
On MCDU1 (2, 3):
  • The VHF3 VOICE DIRECTORY page comes into view.
5.On the VHF3 VOICE DIRECTORY page:
On the VHF3 VOICE DIRECTORY page:
  • Push the line key adjacent to the selected voice-frequency indication.
  • The * indication adjacent to the frequency indication goes out of view.
  • The * indication comes into view adjacent to the REVERT TO DATA indication.
  • The DATA indication goes out of view in the top section of the page.
  • The VOICE indication comes into view in the top section of the page.

On the upper ECAM DU:
  • The VHF3 VOICE green memo-message comes into view in the bottom right section.
NOTE: The ATSU now controls the VHF3 frequency in VOICE mode. The ACARS STBY or COMPANY DATALINK STBY memo message is shown in the bottom left section, if:
  • The other communication systems (SATCOM and/or HF) are not in INOP status, and
  • It was not possible for the other communication systems (SATCOM and/or HF) to connect to the ground.
6.On the VHF3 VOICE DIRECTORY page:
On MCDU1 (2, 3):
  • Push the line key adjacent to the RETURN indication.
  • The COMM MENU page comes into view.
7.On the COMM MENU page:
  • Push the line key adjacent to the VHF3 DATA MODE page.
On MCDU1 (2, 3):
  • The VHF3 DATA MODE page comes into view.
  • The VOICE indication is shown in the top section of the page.
8.On the VHF3 DATA MODE page:
  • Push the line key adjacent to the RETURN indication.
On MCDU1 (2, 3):
  • The COMM MENU page comes into view.
9.On the COMM MENU page:
  • Push the line key adjacent to the COMM STATUS indication
    F COMM STATUS Page ** ON A/C NOT FOR ALL
On MCDU1 (2, 3):
  • The COMM STATUS page comes into view.
  • The VOICE indication is shown adjacent to the VHF3 indication.
10.On the captain (first officer) ACP:
  • Set the VHF3 transmission (the green LED lights are on).

11.With the hand microphone:
  • Speak to the ground station.

12.In the loudspeakers:
  • Make sure that you can hear the ground station correctly.

13.On the COMM STATUS page:
  • Push the line key adjacent to the RETURN indication.
On MCDU1 (2, 3):
  • The COMM MENU page comes into view.
14.On the COMM MENU page:
  • Push the line key adjacent to the VHF3 VOICE DIRECTORY indication.
On MCDU1 (2, 3):
  • The VHF3 VOICE DIRECTORY page comes into view.
15.On the VHF3 VOICE DIRECTORY page:
On the VHF3 VOICE DIRECTORY page:
  • Push the line key adjacent to the REVERT TO DATA* indication.
  • The * indication adjacent to the REVERT TO DATA* indication goes out of view.
  • The VOICE indication goes out of view.
  • The DATA indication comes into view in the top section of the page.
NOTE: The ATSU controls again the VHF3 frequency in DATA mode.

On the upper ECAM DU:
  • The VHF3 VOICE green memo goes out of view.
16.On MCDU1 (2, 3):
  • Push the line key adjacent to the RETURN indication.
On MCDU1 (2, 3):
  • The COMM MENU page comes into view.
17.On the COMM MENU page:
  • Push the line key adjacent to the COMM STATUS indication.
On MCDU1 (2, 3):
  • The COMM STATUS page comes into view.
  • The DATA/DLK AVAIL indications are shown adjacent to the VHF3 indication.
NOTE: The VHF3 status changes from DLK NOT AVAIL to DLK AVAIL status when the VHF3 system connects to the ground with the data frequency. It is necessary to wait for some time.
18.On MCDU1 (2, 3):
  • Push the line key adjacent to the RETURN indication.
On MCDU1 (2, 3):
  • The COMM MENU page comes into view.
Subtask 46-21-00-710-054-E
C. Operational Test of the VDR3 Switching from the DATA Mode to the VOICE Mode with Manual Selection of a Frequency on the MCDU
ACTION
RESULT
1.On MCDU 1(2, 3):
  • Push the MCDU MENU mode key.
On MCDU 1(2, 3):
  • The MCDU MENU page comes into view.
2.On the MCDU MENU page:
  • Push the line key adjacent to the ATSU indication.
On MCDU 1(2, 3):
  • The ATSU DATALINK page comes into view.
3.On the ATSU DATALINK page:
  • Push the line key adjacent to the COMM MENU indication.
On MCDU 1(2, 3):
  • The COMM MENU page comes into view.
4.On the COMM MENU page:
On MCDU 1(2, 3):
  • The VHF3 VOICE DIRECTORY page comes into view.
5.On the VHF3 VOICE DIRECTORY page:
On the VHF3 VOICE DIRECTORY page:
  • Push the line key adjacent to the selected voice-frequency indication.
  • The * indication adjacent to the frequency indication goes out of view.
  • The * indication comes into view adjacent to the REVERT TO DATA indication.
  • The DATA indication goes out of view in the top section of the page.
  • The VOICE indication comes into view in the top section of the page.

On the upper ECAM DU:
  • The VHF3 VOICE green memo-message comes into view in the bottom right section.
NOTE: The ATSU now controls the VHF3 frequency in VOICE mode. The ACARS STBY or COMPANY DATALINK STBY memo message is shown in the bottom left section, if:
  • The other communication systems (SATCOM and/or HF) are not in INOP status, and
  • It was not possible for the other communication systems (SATCOM and/or HF) to connect to the ground for datalink.
6.On the VHF3 VOICE DIRECTORY page:
On MCDU 1(2, 3):
  • Push the line key adjacent to the RETURN indication.
  • The COMM MENU page comes into view.
7.On the COMM MENU page:
  • Push the line key adjacent to the VHF3 DATA MODE page.
On MCDU 1(2, 3):
  • The VHF3 DATA MODE page comes into view.
  • The VOICE indication is shown in the top section of the page.
8.On the VHF3 DATA MODE page:
  • Push the line key adjacent to the RETURN indication.
On MCDU 1(2, 3):
  • The COMM MENU page comes into view.
9.On the COMM MENU page:
  • Push the line key adjacent to the RETURN indication.
On MCDU 1(2, 3):
  • The ATSU DATALINK page comes into view.
10.On the ATSU DATALINK page
On MCDU 1(2, 3):
  • The DATALINK STATUS page comes into view.
  • The VOICE indication is shown adjacent to the VHF3 indication.
11.On the CAPT (F/O) ACP:
  • Push the VHF3 transmission pushbutton switch.
  • Select the VHF3 in the audio reception mode.
On the CAPT (F/O) ACP:
  • The green bars on the VHF3 transmission pushbutton switch come on.
12.With the hand microphone:
  • Speak to the ground station.

13.In the loudspeakers:
  • Make sure that you can hear the ground station correctly.

14.On the DATALINK STATUS page:
  • Push the line key adjacent to the RETURN indication.
On MCDU 1(2, 3):
  • The ATSU DATALINK page comes into view.
15.On the ATSU DATALINK page:
  • Push the line key adjacent to the COMM MENU indication.
On MCDU 1(2, 3):
  • The COMM MENU page comes into view.
16.On the COMM MENU page:
  • Push the line key adjacent to the VHF3 VOICE DIRECTORY indication.
On MCDU 1(2, 3):
  • The VHF3 VOICE DIRECTORY page comes into view.
17.On the VHF3 VOICE DIRECTORY page:
On the VHF3 VOICE DIRECTORY page:
  • Push the line key adjacent to the REVERT TO DATA* indication.
  • The * indication adjacent to the REVERT TO DATA* indication goes out of view.
  • The VOICE indication goes out of view.
  • The DATA indication comes into view in the top section of the page.
NOTE: The ATSU controls again the VHF3 frequency in DATA mode.

On the upper ECAM DU:
  • The VHF3 VOICE green memo goes out of view.
  • If it was shown before, the ACARS STBY or COMPANY DATALINK STBY memo message goes out of view as soon as VHF3 connects to the ground.
18.On MCDU 1(2, 3):
  • Push the line key adjacent to the RETURN indication.
On MCDU 1(2, 3):
  • The COMM MENU page comes into view.
19.On the COMM MENU page:
  • Push the line key adjacent to the RETURN indication.
On MCDU 1(2, 3):
  • The ATSU DATALINK page comes into view.
20.On the ATSU DATALINK page
  • Push the line key adjacent to DATALINK STATUS indication.
On MCDU 1(2, 3):
  • The DATALINK STATUS page comes into view.
  • The DLK AVAIL indications are shown adjacent to the VHF3 indication.
NOTE: The VHF3 status changes from DLK NOT AVAIL to DLK AVAIL status when the VHF3 system connects to the ground with the data frequency. It is necessary to wait for some time.
21.On MCDU 1(2, 3):
  • Push the line key adjacent to the RETURN indication.
On MCDU 1(2, 3):
  • The ATSU DATALINK page comes into view.
Subtask 46-21-00-710-055-C ** ON A/C NOT FOR ALL
D. Operational Test of the VDR3 Mode Switching through the RMPs
ACTION
RESULT
1.On MCDU 1(2, 3):
  • Push the MCDU MENU mode key.
On MCDU 1(2, 3):
  • The MCDU MENU page comes into view.
2.On the MCDU MENU page:
On MCDU 1(2, 3):
  • The ATSU DATALINK page comes into view.
3.On the ATSU DATALINK page:
  • Push the line key adjacent to the COMM indication.
On the MCDU 1(2, 3):
  • The COMM MENU page comes into view.
4.On the COMM MENU page:
On MCDU 1(2, 3):
  • The VHF3 VOICE DIRECTORY page comes into view.
5.On RMP 1(2, 3):
  • Set the frequency of the applicable ground station in the STBY window.
On RMP 1(2, 3):
  • The frequency is shown in the STBY window.
  • Push the transfer pushbutton switch (double arrow) between the two windows.
  • The ACARS or DATA indication comes into view in the STBY window.
  • The frequency indication comes into view in the ACTIVE window.

On the VHF3 VOICE DIRECTORY page:
  • The DATA indication goes out of view.
  • The VOICE indication comes into view in the top section.
NOTE: The RMP controls the VHF3 frequency in VOICE mode.

On the upper ECAM DU:
  • The VHF3 VOICE memo message is shown in the bottom right section.
NOTE: The ACARS STBY or COMPANY DATALINK STBY memo message is shown in the bottom left section, if:
  • The other communication systems (SATCOM and/or HF) are not in INOP status, and
  • It was not possible for the other communication systems (SATCOM and/or HF) to connect to the ground for datalink.
6.On the CAPT (F/O) ACP:
  • Push the VHF3 transmission pushbutton switch.
  • Select the VHF3 in the audio reception mode.
On the CAPT (F/O) ACP:
  • The green bars of the VHF3 transmission pushbutton switch come on.
7.With the hand microphone:
  • Speak to the ground station.

8.In the loudspeakers:
  • Make sure that you can hear the ground station correctly.

9.On RMP 1(2, 3):
  • Push the transfer pushbutton switch (double arrow) between the two windows.
On RMP 1(2, 3):
  • Dashes and then the ACARS or DATA indication come into view in the ACTIVE window.
  • The frequency comes into view in the STBY window.

On the VHF3 VOICE DIRECTORY page:
  • The VOICE indication goes out of view.
  • The DATA indication comes into view in the top section of the page.
NOTE: The ATSU controls the VHF3 frequency in DATA mode.

On the upper ECAM DU:
  • The VHF3 VOICE memo message is no longer shown.
  • If it was shown before, the ACARS STBY or COMPANY DATALINK STBY warning message goes out of view when the VHF3 system connects to the ground.
10.On the VHF3 VOICE DIRECTORY page:
  • Push the line key adjacent to the RETURN indication.
On MCDU 1(2, 3):
  • The COMM MENU page comes into view.
11.On the COMM MENU page:
  • Push the line key adjacent to the VHF3 DATA MODE indication.
On MCDU 1(2, 3):
  • The VHF3 DATA MODE page comes into view.
  • The AUTO indication, the applicable data service-provider name and the related frequency indication are shown on the top section of the page.
NOTE: If the data service provider is selected by the ATSU automatically, the SCAN indication comes into view. The SCAN indication becomes AUTO when the aircraft is connected to the selected data service-provider.
12.On MCDU 1(2, 3):
  • Push the line key adjacent to the RETURN indication until the MCDU MENU page comes into view.

Subtask 46-21-00-710-055-D ** ON A/C NOT FOR ALL
D. Operational Test of the VDR3 Mode Switching through the RMPs
ACTION
RESULT
1.On RMP1 (2, 3):
  • Set the frequency of the applicable ground station in the STBY window.
On RMP1 (2, 3):
  • The frequency is shown in the STBY window.
  • Push the transfer pushbutton switch (double arrow) between the two windows.
  • The ACARS or DATA indication comes into view in the STBY window.
  • The frequency indication comes into view in the ACTIVE window.
NOTE: The RMP controls the VHF3 frequency in VOICE mode.

On the upper ECAM DU:
  • The VHF3 VOICE memo message is shown in the bottom right section.
NOTE: The ACARS STBY or COMPANY DATALINK STBY memo message is shown in the bottom left section, if:
  • The other communication systems (SATCOM and/or HF) are not in INOP status, and
  • It was not possible for the other communication systems (SATCOM and/or HF) to connect to the ground.
2.On the captain (first officer) ACP:
  • Set the VHF3 transmission.

3.With the hand microphone:
  • Speak to the ground station.

4.In the loudspeakers:
  • Make sure that you can hear the ground station correctly.

5.On RMP1 (2, 3):
  • Push the transfer pushbutton switch (double arrow) between the two windows.
On RMP1 (2, 3):
  • Dashes and then the ACARS or DATA indication come into view in the ACTIVE window.
  • The frequency comes into view in the STBY window.
NOTE: The ATSU controls the VHF3 frequency in DATA mode.

On the upper ECAM DU:
  • The VHF3 VOICE memo message is no longer shown.
  • The ACARS STBY or COMPANY DATALINK STBY warning message goes out of view when the VHF3 system connects to the ground.
6.On MCDU1 (2, 3):
  • Push the MCDU MENU mode key.
On MCDU1 (2, 3):
  • The MCDU MENU page comes into view.
7.On the MCDU MENU page:
On MCDU1 (2, 3):
  • The ATSU DATALINK page comes into view.
8.On the ATSU DATALINK page:
  • Push the line key adjacent to the COMM MENU indication.
On MCDU1 (2, 3):
  • The COMM MENU page comes into view.
9.On the COMM MENU page:
  • Push the line key adjacent to the VHF3 DATA MODE indication
    F VHF3 DATA MODE Page ** ON A/C NOT FOR ALL
On MCDU1 (2, 3):
  • The VHF3 DATA MODE page comes into view.
  • The MANUAL (or AUTO) indication, the applicable data service-provider name and the related frequency indication are shown on the top section of the page.
NOTE: If you set the data service provider manually, the SCAN indication becomes MANUAL after the aircraft is connected to the selected data service-provider.
If the data service provider is selected by the ATSU automatically, the SCAN indication comes into view. The SCAN indication becomes AUTO when the aircraft is connected to the selected data service-provider.
10.On MCDU1 (2, 3):
  • Push the line key adjacent to the RETURN indication until the MCDU MENU page comes into view.

5. Close-up
Subtask 46-21-00-860-057-A
A. Put the aircraft back to its initial configuration.
   (1) On the MCDUs, fully decrease the brightness of the MCDU screen (display off).
   (2) On the RMPs, set the ON/OFF switch to OFF.
   (3) At each crew station, disconnect the MICROPHONE 150 OHMS - HAND from the jack panel.
   (4) On CAPT LIGHTING/LOUD SPEAKER control panel 301VU and F/O LIGHTING/LOUD SPEAKER control panel 500VU, turn the LOUD SPEAKER potentiometer counterclockwise to the OFF position.
   (5) Do the EIS stop procedure (Ref. AMM TASK 31-60-00-860-002).
   (6) Do the ADIRS stop procedure (Ref. AMM TASK 34-10-00-860-005).
Subtask 46-21-00-862-052-A
B. De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
[Rev.10 from 2021] 2026.04.02 06:26:04 UTC
"WTRUIB" 2025