DOC AIRBUS | AMM A320FRead the Class 3 Faults [CFMB]
TASK 73-25-34-710-044-A
Read the Class 3 Faults
1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Referenced Information
3. Job Set-up
Subtask 73-25-34-861-051-A ** ON A/C NOT FOR ALL Subtask 73-25-34-865-051-A ** ON A/C NOT FOR ALL
Subtask 73-25-34-710-053-A ** ON A/C NOT FOR ALL
Subtask 73-25-34-862-051-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 02:59:44 UTC
Read the Class 3 Faults
1. Reason for the Job
Self explanatory
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 |
Subtask 73-25-34-861-051-A ** ON A/C NOT FOR ALL Subtask 73-25-34-865-051-A ** ON A/C NOT FOR ALL
B. Make sure that this(these) circuit breaker(s) is(are) closed:
Subtask 73-25-34-710-052-A ** ON A/C NOT FOR ALL 4. Procedure| 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/ENG1/OIL/PRESS | 2EN1 | N40 |
| 121VU | ENGINE/ENG1/OIL/QTY | 1EN1 | N39 |
| 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/ENG2/OIL/PRESS | 2EN2 | N42 |
| 121VU | ENGINE/ENG2/OIL/QTY | 1EN2 | N41 |
| 121VU | ENGINE/IGN/ENG2/SYS B | 3JH2 | P42 |
| 121VU | ENGINE/IGN/ENG2/SYS A BAT | 2JH2 | P40 |
| 121VU | ENGINE/ENG2/FADEC B | 4KS2 | Q40 |
Subtask 73-25-34-710-053-A ** ON A/C NOT FOR ALL
A. Do the test below:
5. Close-up| ACTION | RESULT |
|---|---|
| 1.Push the line key adjacent to the EIU1 (EIU2) indication. | The EIU menu comes into view. |
| 2.Push the line key adjacent to the CLASS 3 FAULTS. | After a short time, the NO FAILURE message comes into view. |
| 3.Push the MENU pushbutton switch. | The MCDU menu comes into view. |
| 4.Stop the MCDU. | |
Subtask 73-25-34-862-051-A ** ON A/C NOT FOR ALL