DOC AIRBUS | TSM A320FGEN1 does not come on line
TASK 24-22-00-810-817-A
GEN1 does not come on line
1. Possible Causes
A. Referenced Information
3. Fault Confirmation
Subtask 24-22-00-860-070-A ** ON A/C NOT FOR ALL
Subtask 24-22-00-810-068-A ** ON A/C NOT FOR ALL
Subtask 24-22-00-860-071-A ** ON A/C NOT FOR ALL
[Rev.8 from Aug 2018]
2026.04.04 04:26:36 UTC
GEN1 does not come on line
1. Possible Causes
- IDG [4000XU]
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| AMM 24-21-51-000-040 | Removal of the Integrated Drive Generator - IDG 1(2) |
| AMM 24-21-51-400-040 | Installation of the Integrated Drive Generator - IDG 1(2) |
| AMM 24-41-00-861-002 | Energize the Aircraft Electrical Circuits from the External Power |
| AMM 24-41-00-862-002 | De-energize the Aircraft Electrical Circuits Supplied from the External Power |
| AMM 31-60-00-860-001 | EIS Start Procedure |
| AMM 71-00-00-710-003 | Engine Automatic Start |
| AMM 71-00-00-710-028 | Engine Shutdown |
Subtask 24-22-00-860-070-A ** ON A/C NOT FOR ALL
A. Job Set up
(1) On the ELEC panel 35VU, push the GEN1 pushbutton switch (3XU1).
(2) Aircraft Maintenance Configuration
(a) Energize the aircraft electrical circuits
AMM 24-41-00-861-002.
(b) Do the EIS start procedure (Upper ECAM DU and lower ECAM DU only)
AMM 31-60-00-860-001.
(3) Start the engine 1 AMM 71-00-00-710-003.
Subtask 24-22-00-710-073-A ** ON A/C NOT FOR ALL (1) On the ELEC panel 35VU, push the GEN1 pushbutton switch (3XU1).
(2) Aircraft Maintenance Configuration
(a) Energize the aircraft electrical circuits
AMM 24-41-00-861-002.
(b) Do the EIS start procedure (Upper ECAM DU and lower ECAM DU only)
AMM 31-60-00-860-001.
(3) Start the engine 1 AMM 71-00-00-710-003.
B. Test
4. Fault Isolation| ACTION | RESULT |
|---|---|
| 1.On the ECAM control panel, push the ELEC key (on the lower ECAM DU, the ELEC page comes into view). | On the lower ECAM DU:
|
Subtask 24-22-00-810-068-A ** ON A/C NOT FOR ALL
A. If the test confirms the fault:
(1) Do a check of the resistance of the IDG1 MPU coil between pin B/1 and pin B/2 (17.5 Ohms plus or minus 3.5 Ohms at 25 deg.C [77 deg. F]).
(2) If the resistance values are out of the specified limits:
Subtask 24-22-00-710-074-A ** ON A/C NOT FOR ALL (1) Do a check of the resistance of the IDG1 MPU coil between pin B/1 and pin B/2 (17.5 Ohms plus or minus 3.5 Ohms at 25 deg.C [77 deg. F]).
(2) If the resistance values are out of the specified limits:
- replace the IDG [4000XU] AMM 24-21-51-000-040 and AMM 24-21-51-400-040.
B. Do the test given in Para. 3.
5. Close-upSubtask 24-22-00-860-071-A ** ON A/C NOT FOR ALL
A. Put the aircraft back to its initial configuration.
(1) Stop the engine 1 AMM 71-00-00-710-028.
(2) Put the aircraft back to its initial configuration.
(3) De-energize the aircraft electrical circuits
AMM 24-41-00-862-002.
(1) Stop the engine 1 AMM 71-00-00-710-028.
(2) Put the aircraft back to its initial configuration.
(3) De-energize the aircraft electrical circuits
AMM 24-41-00-862-002.