DOC AIRBUS | AMM A320FOperational Test of the EIU with the CFDS [IAE]
TASK 73-25-34-710-042-A
Operational Test of the EIU with the CFDS
1. Reason for the Job
Use this test to do a check of the EIU operation.
2. Job Set-up Information
A. Referenced Information
3. Job Set-up
Subtask 73-25-34-861-054-A ** ON A/C NOT FOR ALL Subtask 73-25-34-865-060-A ** ON A/C NOT FOR ALL
Subtask 73-25-34-710-060-B ** ON A/C NOT FOR ALL
Subtask 73-25-34-860-064-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 04:13:40 UTC
Operational Test of the EIU with the CFDS
1. Reason for the Job
Use this test to do a check of the EIU operation.
2. Job Set-up Information
A. 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 31-32-00-860-012-A | Procedure to Get Access to the SYSTEM REPORT/TEST/ENG Page |
DISCRETE OUTPUTS MenuSubtask 73-25-34-861-054-A ** ON A/C NOT FOR ALL Subtask 73-25-34-865-060-A ** ON A/C NOT FOR ALL
B. Make sure that this(these) circuit breaker(s) is(are) closed:
Subtask 73-25-34-860-063-A ** ON A/C NOT FOR ALL | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | ENGINE/1 AND 2/IGN/SYS A | 1JH | A03 |
| FOR FIN: 1000EM1 (ENGINE1) | |||
| 49VU | ENGINE/1/FADEC A/AND EIU 1 | 2KS1 | A04 |
| 121VU | ENGINE/IGN/ENG1/SYS B | 3JH1 | P41 |
| 121VU | ENGINE/IGN/ENG1/SYS A BAT | 2JH1 | P39 |
| 121VU | ENGINE/ENG1/FADEC B/AND EIU 1 | 4KS1 | R41 |
| FOR FIN: 1000EM2 (ENGINE2) | |||
| 49VU | ENGINE/2/FADEC A/AND EIU 2 | 2KS2 | A05 |
| 121VU | ENGINE/IGN/ENG2/SYS B | 3JH2 | P42 |
| 121VU | ENGINE/IGN/ENG2/SYS A BAT | 2JH2 | P40 |
| 121VU | ENGINE/ENG2/FADEC B | 4KS2 | Q40 |
C. On the MAINTENANCE PNL 50VU:
Release the FADEC GND PWR 1(2) pushbutton switch (on the pushbutton switch, the ON legend comes on).
4. ProcedureRelease the FADEC GND PWR 1(2) pushbutton switch (on the pushbutton switch, the ON legend comes on).
Subtask 73-25-34-710-060-B ** ON A/C NOT FOR ALL
A. Operational Test of the EIU:
(1) Do this test
5. Close-up(1) Do this test
NOTE: This test is for the system 1. For the system 2, use the indication between parentheses.
(2) On the left or right MCDU get the SYSTEM REPORT/TEST ENG page. (Ref. AMM TASK 31-32-00-860-012). | ACTION | RESULT |
|---|---|
| 1.Push the line key adjacent to the EIU1 (EIU2) indication. |
|
| 2.Push the line key adjacent to the GND SCANNING indication. |
|
| 3.Push the line key adjacent to the RETURN indication. |
|
| 4.Push the line key adjacent to the DISCRETE OUTPUTS indication. |
|
| 5.Push the line key adjacent to the FAULT indication. |
|
| 6.Push the line key adjacent to the FAULT indication. |
|
| 7.Push the line key adjacent to the RETURN indication until the CFDS menu comes into view. |
|
| 8.Push the MCDU MENU key |
|
Subtask 73-25-34-860-064-A ** ON A/C NOT FOR ALL
A. On the maintenance panel 50VU:
Push the FADEC GND PWR 1(2) pushbutton switch.
The ON legend goes off.
Subtask 73-25-34-862-054-A ** ON A/C NOT FOR ALL Push the FADEC GND PWR 1(2) pushbutton switch.
The ON legend goes off.