DOC AIRBUS | AMM A320FDeactivation of the EIS DMC Selector Switch
TASK 31-68-00-040-003-A
Deactivation of the EIS DMC Selector Switch
MMEL 31-68-04A
EIS DMC SWITCHING SELECTOR ON THE CENTER PEDESTAL (FAA ONLY)
2. Job Set-up Information
A. Work Zones and Access Panels
B. Referenced Information
3. Job Set-up
Subtask 31-68-00-860-056-A Subtask 31-68-00-865-052-A
Subtask 31-68-00-710-052-A ** ON A/C NOT FOR ALL
Subtask 31-68-00-860-057-A
[Rev.10 from 2021]
2026.04.01 00:39:04 UTC
Deactivation of the EIS DMC Selector Switch
ZONE: 210
1. Reason for the JobMMEL 31-68-04A
EIS DMC SWITCHING SELECTOR ON THE CENTER PEDESTAL (FAA ONLY)
2. Job Set-up Information
A. Work Zones and Access Panels
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 210 | CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD |
| 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 |
Subtask 31-68-00-860-056-A Subtask 31-68-00-865-052-A
B. Make sure that this(these) circuit breaker(s) is(are) closed:
Subtask 31-68-00-860-058-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | EIS/PFD CAPT/SPLY | 11WT1 | E03 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | EIS/RLY/BOX/CAPT | 17WT1 | E08 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | EIS/ECAM/CTL/PNL | 15WT | E12 |
| 49VU | EIS/DMC1/SPLY | 10WT1 | E11 |
| 49VU | EIS/DMC3/STBY/SPLY | 14WT1 | E10 |
| 49VU | EIS/DMC1/SWTG | 21WT1 | E09 |
| ** ON A/C ALL | |||
| 49VU | EIS/DMC3/SWTG | 21WT3 | E07 |
| 49VU | EIS/ECAM DU/UPPER/SWTG | 24WT1 | E06 |
| 49VU | EIS/ECAM DU/UPPER/SPLY | 13WT1 | E05 |
| 49VU | EIS/PFD CAPT/SWTG | 22WT1 | E04 |
| 49VU | EIS/ND CAPT/SWTG | 23WT1 | E02 |
| 49VU | EIS/ND CAPT/SPLY | 12WT1 | E01 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | EIS/PFD/CAPT/SPLY | 11WT1 | E03 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | EIS/ECAM/CTL/PNL | 15WT | E11 |
| 49VU | EIS/DMC1/SPLY | 10WT1 | E10 |
| 49VU | EIS/DMC3/STBY/SPLY | 14WT1 | E09 |
| 49VU | EIS/DMC1/SWTG | 21WT1 | E08 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | EIS/RLY/BOX/F/O | 17WT2 | R07 |
| ** ON A/C ALL | |||
| 121VU | EIS/DMC3/SPLY | 10WT3 | Q09 |
| 121VU | EIS/DMC2/SPLY | 10WT2 | Q08 |
| 121VU | EIS/ECAM DU/LOWER/SPLY | 13WT2 | R11 |
| 121VU | EIS/ECAM DU/LOWER/SWTG | 24WT2 | R10 |
| 121VU | EIS/DMC2/SWTG | 21WT2 | R08 |
| 121VU | EIS/ND/F/O/SWTG | 23WT2 | R06 |
| 121VU | EIS/PFD/F/O/SWTG | 22WT2 | R05 |
| 121VU | EIS/ND/F/O | 12WT2 | R04 |
| 121VU | EIS/PFD/F/O | 11WT2 | R03 |
| 122VU | ELEC/AC/BUS1/CTL | 17XN1 | V25 |
C. Aircraft Maintenance Configuration
(1) Do the EIS Start Procedure (Ref. AMM TASK 31-60-00-860-001)
(2) On the center pedestal, on the SWITCHING panel 8VU, make sure that the EIS DMC selector switch is in the NORM position.
4. Procedure(1) Do the EIS Start Procedure (Ref. AMM TASK 31-60-00-860-001)
(2) On the center pedestal, on the SWITCHING panel 8VU, make sure that the EIS DMC selector switch is in the NORM position.
Subtask 31-68-00-710-052-A ** ON A/C NOT FOR ALL
A. Check of the EIS DMC switch
Subtask 31-68-00-710-052-B ** ON A/C NOT FOR ALL | ACTION | RESULT |
|---|---|
| 1.On C/B panel 49VU: | |
| A diagonal line comes into view on the CAPT PFD and ND and on the upper ECAM DU. On the lower ECAM DU, the EIS DMC1 FAULT message is displayed. |
| The related images of each DU come into view. |
| 2.On C/B panel 121VU: | |
| A diagonal line comes into view on the F/O PFD and ND and on the lower ECAM DU. On the upper ECAM DU, the EIS DMC2 FAULT message is displayed. |
| The related images of each DU come into view. |
A. Check of the EIS DMC switch
Subtask 31-68-00-020-053-A | ACTION | RESULT |
|---|---|
| 1.On C/B panel 49VU: | |
| An INVALID DATA message comes into view on the CAPT PFD and ND On the lower ECAM DU, the EIS DMC1 FAULT message is displayed. |
| After 35s, the related images of each DU come into view. |
| 2.On C/B panel 121VU: | |
| An INVALID DATA message comes into view on the F/O PFD and ND On the upper ECAM DU, the EIS DMC2 FAULT message is displayed. |
| After 35s, the related images of each DU come into view. |
B. Deactivation of the EIS DMC selector switch
(1) Make a mark on the panel 8VU close to the EIS DMC selector switch to forbid the crew to set the EIS DMC selector switch in any position except NORM which is the valid position.
5. Close-up(1) Make a mark on the panel 8VU close to the EIS DMC selector switch to forbid the crew to set the EIS DMC selector switch in any position except NORM which is the valid position.
Subtask 31-68-00-860-057-A
A. Aircraft Maintenance Configuration
(1) Do the EIS Stop Procedure (Ref. AMM TASK 31-60-00-860-002)
(2) Make an entry in the log book.
(3) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002)
(1) Do the EIS Stop Procedure (Ref. AMM TASK 31-60-00-860-002)
(2) Make an entry in the log book.
(3) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002)