DOC AIRBUS | TSM A320FAbnormal Oil Consumption of the IDG1 (2)
TASK 24-21-00-810-817-A
Abnormal Oil Consumption of the IDG1 (2)
1. Possible Causes
A. Fixtures, Tools, Test and Support Equipment
B. Referenced Information
3. Fault Confirmation
Subtask 24-21-00-700-054-A
Subtask 24-21-00-810-072-A ** ON A/C NOT FOR ALL
Subtask 24-21-00-860-054-A
[Rev.8 from Aug 2018]
2026.04.04 04:26:31 UTC
Abnormal Oil Consumption of the IDG1 (2)
1. Possible Causes
- IDG [4000XU]
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | AR | CONTAINER 1 L (0,25 USGAL) - PLASTIC |
| No specific | 1 | CONTAINER 1 L (0,25 USGAL) - TRANSPARENT |
| No specific | AR | HOSE - DRAIN |
| REFERENCE | DESIGNATION |
|---|---|
| AMM 24-21-00-210-047 | Visual Inspection of the IDG for Oil Leaks and Check of the Electrical Circuits |
| AMM 24-21-00-210-806 | Visual Inspection of the IDG for Oil Leaks and Check of the Electrical Circuits |
| 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 31-60-00-860-002 | EIS Stop Procedure |
| AMM 71-00-00-710-003 | Engine Automatic Start |
| AMM 71-00-00-710-028 | Engine Shutdown |
| AMM 71-73-49-000-004 | Removal of the IDG Oil Drain Tube |
| AMM 71-73-49-400-004 | Installation of the IDG Oil Drain Tube |
| AMM 78-30-00-481-041 | Make the Thrust Reverser Unserviceable for Maintenance |
| AMM 78-36-00-010-040 | Opening of the Thrust Reverser Doors |
| AMM 78-36-00-410-040 | Closing of the Thrust Reverser Doors |
Subtask 24-21-00-700-054-A
A. Test
Not applicable
4. Fault IsolationNot applicable
Subtask 24-21-00-810-072-A ** ON A/C NOT FOR ALL
A. Inspection
(1) Do a visual inspection of the IDG1 (2) and external system (tubings, cooler) for oil leaks AMM 24-21-00-210-047.
(2) If you find no leak continue the trouble shooting procedure as follows.
Subtask 24-21-00-810-072-F ** ON A/C NOT FOR ALL (1) Do a visual inspection of the IDG1 (2) and external system (tubings, cooler) for oil leaks AMM 24-21-00-210-047.
(2) If you find no leak continue the trouble shooting procedure as follows.
A. Inspection
(1) Do a visual inspection of the IDG1 (2) and external system (hoses, IDG oil/oil and IDG fuel/oil Heat Exchanger) for oil leaks AMM 24-21-00-210-806.
(2) If you find no leak, continue the trouble shooting procedure as follows.
Subtask 24-21-00-860-055-A (1) Do a visual inspection of the IDG1 (2) and external system (hoses, IDG oil/oil and IDG fuel/oil Heat Exchanger) for oil leaks AMM 24-21-00-210-806.
(2) If you find no leak, continue the trouble shooting procedure as follows.
B. Aircraft Maintenance configuration
(1) Energize the aircraft electrical circuits AMM 24-41-00-861-002.
(2) Do the EIS start procedure AMM 31-60-00-860-001.
Subtask 24-21-00-710-076-A ** ON A/C NOT FOR ALL (1) Energize the aircraft electrical circuits AMM 24-41-00-861-002.
(2) Do the EIS start procedure AMM 31-60-00-860-001.
C. Check of the IDG Drain Mast for Leakage
(a) Make the thrust reverser unserviceable for maintenance AMM 78-30-00-481-041.
(b) Open the thrust reverser doors AMM 78-36-00-010-040.
(c) On the engine drain collector assembly, put a CONTAINER 1 L (0,25 USGAL) - TRANSPARENT and a HOSE - DRAIN on the IDG oil drain AMM 71-73-49-000-004 AMM 71-73-49-400-004.
(d) Close the thrust reverser doors AMM 78-36-00-410-040.
(2) Engine operation
(b) Operate the engine at 70 percent N1 and let it become stable for 5 minutes.
(c) Operate the engine at minimum idle and let it become stable for 5 minutes.
(d) Stop the engine AMM 71-00-00-710-028.
(e) If you find an oil leakage from the IDG drain, change the IDG [4000XU] AMM 24-21-51-000-040 AMM 24-21-51-400-040.
Subtask 24-21-00-710-076-C ** ON A/C NOT FOR ALL NOTE: An internal oil consumption of 1 cc is permitted for each flight hour or when the engines operate.
(1) Preparation for the test (a) Make the thrust reverser unserviceable for maintenance AMM 78-30-00-481-041.
(b) Open the thrust reverser doors AMM 78-36-00-010-040.
(c) On the engine drain collector assembly, put a CONTAINER 1 L (0,25 USGAL) - TRANSPARENT and a HOSE - DRAIN on the IDG oil drain AMM 71-73-49-000-004 AMM 71-73-49-400-004.
(d) Close the thrust reverser doors AMM 78-36-00-410-040.
(2) Engine operation
WARNING:
- ENGINE OPERATION MUST NOT EXCEED MINIMUM IDLE WHEN PERSONNEL ARE IN ENTRY/EXIT CORRIDOR.
(a) Start the engine AMM 71-00-00-710-003 and let it become stable at minimum idle for 5 minutes. - POSITIVE COMMUNICATION BETWEEN THE FLIGHT COMPARTMENT AND PERSONNEL IN ENTRY EXIT CORRIDOR IS NECESSARY.
- INLET AND EXHAUST HAZARD AREAS MUST BE STRICTLY OBSERVED BY PERSONNEL IN ENTRY/EXIT CORRIDOR.
(b) Operate the engine at 70 percent N1 and let it become stable for 5 minutes.
(c) Operate the engine at minimum idle and let it become stable for 5 minutes.
(d) Stop the engine AMM 71-00-00-710-028.
(e) If you find an oil leakage from the IDG drain, change the IDG [4000XU] AMM 24-21-51-000-040 AMM 24-21-51-400-040.
C. Check of the IDG Drain Mast for Leakage
(a) Make the thrust reverser unserviceable for maintenance AMM 78-30-00-481-041.
(b) Open the thrust reverser doors AMM 78-36-00-010-040.
(c) On the engine drain collector assembly, put a CONTAINER 1 L (0,25 USGAL) - PLASTIC and a HOSE - DRAIN on the IDG oil drain AMM 71-73-49-000-004 AMM 71-73-49-400-004.
(d) Close the thrust reverser doors AMM 78-36-00-410-040.
(2) Engine operation
(b) Operate the engine at 70 percent N1 and let it become stable for 5 minutes.
(c) Operate the engine at minimum idle and let it become stable for 5 minutes.
(d) Stop the engine AMM 71-00-00-710-028.
(e) If you find an oil leakage from the IDG drain, change the IDG [4000XU] AMM 24-21-51-000-040 AMM 24-21-51-400-040.
5. Close-upNOTE: An internal oil consumption of 1 cc is permitted for each flight hour or when the engines operate.
(1) Preparation for the test (a) Make the thrust reverser unserviceable for maintenance AMM 78-30-00-481-041.
(b) Open the thrust reverser doors AMM 78-36-00-010-040.
(c) On the engine drain collector assembly, put a CONTAINER 1 L (0,25 USGAL) - PLASTIC and a HOSE - DRAIN on the IDG oil drain AMM 71-73-49-000-004 AMM 71-73-49-400-004.
(d) Close the thrust reverser doors AMM 78-36-00-410-040.
(2) Engine operation
WARNING:
- ENGINE OPERATION MUST NOT EXCEED MINIMUM IDLE WHEN PERSONNEL ARE IN ENTRY/EXIT CORRIDOR.
(a) Start the engine AMM 71-00-00-710-003 and let it become stable at minimum idle for 5 minutes. - POSITIVE COMMUNICATION BETWEEN THE FLIGHT COMPARTMENT AND PERSONNEL IN ENTRY EXIT CORRIDOR IS NECESSARY.
- INLET AND EXHAUST HAZARD AREAS MUST BE STRICTLY OBSERVED BY PERSONNEL IN ENTRY/EXIT CORRIDOR.
(b) Operate the engine at 70 percent N1 and let it become stable for 5 minutes.
(c) Operate the engine at minimum idle and let it become stable for 5 minutes.
(d) Stop the engine AMM 71-00-00-710-028.
(e) If you find an oil leakage from the IDG drain, change the IDG [4000XU] AMM 24-21-51-000-040 AMM 24-21-51-400-040.
Subtask 24-21-00-860-054-A
A. Put the aircraft back to its initial configuration.
(1) Do the EIS stop procedure AMM 31-60-00-860-002.
(2) De-energize the aircraft electrical circuits AMM 24-41-00-862-002.
(1) Do the EIS stop procedure AMM 31-60-00-860-002.
(2) De-energize the aircraft electrical circuits AMM 24-41-00-862-002.