DOC AIRBUS | TSM A320FTroubleshoot the Engine after an Idle not Correct event
TASK 71-00-00-810-876-A
Troubleshoot the Engine after an Idle not Correct event
1. Possible Causes
2. Job Set-up Information
A. Referenced Information
3. Fault Confirmation
Subtask 71-00-00-710-136-A ** ON A/C NOT FOR ALL
Subtask 71-00-00-860-090-A ** ON A/C NOT FOR ALL
[Rev.8 from Aug 2018]
2026.04.04 04:35:06 UTC
Troubleshoot the Engine after an Idle not Correct event
1. Possible Causes
2. Job Set-up Information
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| TSM TASK 73-11-00-810-808-A | Integrated Fuel Pump and Control/FMV-Track Check Channel A |
| TSM TASK 73-11-00-810-813-A | Integrated Fuel Pump and Control/FMV-Track Check Channel B |
| TSM TASK 73-21-00-810-871-A | T2 Engine Sensor Signal Failure Channel A |
| TSM TASK 73-21-00-810-872-A | T2 Engine Sensor Signal Failure Channel B |
| TSM TASK 73-21-00-810-894-A | P2 Synthesized in Disagreement with ADIRUx |
| TSM TASK 73-21-00-810-897-A | T2 in Disagreement with ADIRUx or T2 in Range Failed |
| TSM TASK 75-32-00-810-832-A | LPC (2.5) Bleed Valve Actuator Mechanically Stuck Open - Track Check |
| TSM TASK 76-11-00-810-825-A | TRA Signal Failure Channel A |
| TSM TASK 76-11-00-810-826-A | TRA Signal Failure Channel B |
| AMM 30-21-00-200-802 | Inspection/Check of the Engine Air Intake Ice Protection |
| AMM 36-11-00-710-802 | Operational Test of the Bleed Air System |
| AMM 73-11-01-000-801 | Removal of the Integrated Fuel Pump and Control (IFPC) |
| AMM 73-11-01-400-801 | Installation of the Integrated Fuel Pump and Control (IFPC) |
| AMM 73-21-00-200-806 | Electronic Engine Control (EEC) Sensing System Check |
| AMM 73-21-00-710-806 | Test No.7 - EEC Operation Test (Self Test) |
| AMM 73-21-00-710-807 | Test No.6 - EEC Operation Test (Idle Test) |
| AMM 73-21-01-000-801 | Removal of the Electronic Engine Control (EEC) |
| AMM 73-21-01-400-801 | Installation of the Electronic Engine Control (EEC) |
| AMM 73-25-34-710-802 | Operational Test of the Engine Interface Unit (EIU) with the Centralized Fault Display System (CFDS) |
Subtask 71-00-00-710-136-A ** ON A/C NOT FOR ALL
A. Investigate the Engine after an Idle not Correct event
(1) Using the Multipurpose Control and Display Unit (MCDU) test the FADEC system for any recorded faults AMM 73-21-00-710-806.
(2) Any EEC monitored faults are transmitted to the aircraft Centralized Fault Display Interface Unit (CFDIU). The MCDU allows interactive dialog with the EEC. Use the MCDU to review the previous flight leg fault information, scheduled maintenance fault information and ground fault information. If there are any faults reported troubleshoot them first.
4. Fault Isolation(1) Using the Multipurpose Control and Display Unit (MCDU) test the FADEC system for any recorded faults AMM 73-21-00-710-806.
(2) Any EEC monitored faults are transmitted to the aircraft Centralized Fault Display Interface Unit (CFDIU). The MCDU allows interactive dialog with the EEC. Use the MCDU to review the previous flight leg fault information, scheduled maintenance fault information and ground fault information. If there are any faults reported troubleshoot them first.
WARNING:
BE CAREFUL WHEN YOU DO WORK ON THE ENGINE AFTER SHUTDOWN. THE ENGINE CAN STAY HOT FOR A LONG TIME. IF YOU DO NOT OBEY THIS WARNING, INJURY CAN OCCUR.
Subtask 71-00-00-810-143-A ** ON A/C NOT FOR ALL A. Do the steps that follow:
(1) If the maintenance messages related to the Throttle Resolver Angle (TRA) signal failure on channel A appear with the ECAM warning for engine one Throttle Lever Angle (TLA) fault and/or for engine throttle lever fault and engine throttle and reserver, refer to TRA Signal Failure (Ref. TSM TASK 76-11-00-810-825).
(2) If the maintenance messages related to the TRA signal failure on channel B appear with the ECAM warning for engine one TLA fault and/or for engine throttle lever fault and engine throttle and reserver, refer to TRA Signal Failure (Ref. TSM TASK 76-11-00-810-826).
(3) If the maintenance messages related to the Fuel Metering Valve (FMV) track check appear on channel A appear with the ECAM warning for engine FADEC status maintenance and/or the ECAM warning for engine fuel control fault and engine fuel valve fault, refer to integrated fuel pump and control/FMV-track check channel A (Ref. TSM TASK 73-11-00-810-808).
(4) If the maintenance messages related to the Fuel Metering Valve (FMV) track check appear on channel B appear with the ECAM warning for engine FADEC status maintenance and/or the ECAM warning for engine fuel control fault and engine fuel valve fault, refer to integrated fuel pump and control/FMV-track check channel B (Ref. TSM TASK 73-11-00-810-813).
(5) If the maintenance messages related to the T2 engine sensor signal failure on channel A appear with the ECAM warning for engine FADEC status maintenance or the ECAM warning for engine sensor fault, refer to T2 engine sensor signal failure channel A (Ref. TSM TASK 73-21-00-810-871).
(6) If the maintenance messages related to the T2 engine sensor signal failure on channel B appear with the ECAM warning for engine FADEC status maintenance or the ECAM warning for engine sensor fault, refer to T2 engine sensor signal failure channel B (Ref. TSM TASK 73-21-00-810-872).
(7) If the maintenance messages related to the 2.5 bleed valve actuator failure appear with the ECAM warning for engine compressor vane fuel consumption increased thrust limited, refer to LPC (2.5) bleed valve actuator mechanically stuck open - track check (Ref. TSM TASK 75-32-00-810-832).
(8) If the maintenance messages related to High Pressure Compressor (HPC) Stator Vane Actuator (SVA) primary failure appear with the ECAM warning for engine compressor vane thrust limited refer to HPC SVA master actuator / mechanical failure resulting in inability to position actuator (Ref. TSM TASK 75-31-00-810-819).
(9) If the maintenance messages related to the T2 sensor disagree with ADIRU sensor, refer to T2 in disagreement with ADIRUx or T2 in range failed (Ref. TSM TASK 73-21-00-810-897).
(10) If the maintenance messages related to the Pamb sensor disagree with ADIRU sensor appear, refer to Pamb in range failed (Ref. TSM TASK 73-21-00-810-902).
(11) If the maintenance messages related to the P2 calculated disagree with ADIRU sensor appear, refer to P2 Synthesized in Disagreement with ADIRUx (Ref. TSM TASK 73-21-00-810-894).
(12) If there are no EEC monitored faults or messages recorded and the engine idle parameters are not within the proper operating range, check the burner pressure sensing lines AMM 73-21-00-200-806.
(13) If you do not find any problems, make sure that the aircraft pneumatic system is operating properly AMM 36-11-00-710-802.
(14) If you do not find any problems, make sure the intake anti-ice system is operating properly AMM 30-21-00-200-802.
(15) If you do not find any problems, do an operationnal test of the Engine Interface Unit (EIU) with the Centralized FaultDisplay System (CFDS) AMM 73-25-34-710-802.
(a) Check for any fault message involving Landing Gear Control and Interface Unit (LGCIU) or slat extension.
(b) Troubleshoot any messages as necessary.
(16) If you do not find any problems:
(a) Replace INTEGRATED FUEL PUMP AND CONTROL [4360KS] AMM 73-11-01-000-801 and AMM 73-11-01-400-801.
(17) If not previously, accomplished run the engine at idle AMM 73-21-00-710-807.
(18) If the problem continues:
(a) Replace
5. Close-up(1) If the maintenance messages related to the Throttle Resolver Angle (TRA) signal failure on channel A appear with the ECAM warning for engine one Throttle Lever Angle (TLA) fault and/or for engine throttle lever fault and engine throttle and reserver, refer to TRA Signal Failure (Ref. TSM TASK 76-11-00-810-825).
(2) If the maintenance messages related to the TRA signal failure on channel B appear with the ECAM warning for engine one TLA fault and/or for engine throttle lever fault and engine throttle and reserver, refer to TRA Signal Failure (Ref. TSM TASK 76-11-00-810-826).
(3) If the maintenance messages related to the Fuel Metering Valve (FMV) track check appear on channel A appear with the ECAM warning for engine FADEC status maintenance and/or the ECAM warning for engine fuel control fault and engine fuel valve fault, refer to integrated fuel pump and control/FMV-track check channel A (Ref. TSM TASK 73-11-00-810-808).
(4) If the maintenance messages related to the Fuel Metering Valve (FMV) track check appear on channel B appear with the ECAM warning for engine FADEC status maintenance and/or the ECAM warning for engine fuel control fault and engine fuel valve fault, refer to integrated fuel pump and control/FMV-track check channel B (Ref. TSM TASK 73-11-00-810-813).
(5) If the maintenance messages related to the T2 engine sensor signal failure on channel A appear with the ECAM warning for engine FADEC status maintenance or the ECAM warning for engine sensor fault, refer to T2 engine sensor signal failure channel A (Ref. TSM TASK 73-21-00-810-871).
(6) If the maintenance messages related to the T2 engine sensor signal failure on channel B appear with the ECAM warning for engine FADEC status maintenance or the ECAM warning for engine sensor fault, refer to T2 engine sensor signal failure channel B (Ref. TSM TASK 73-21-00-810-872).
(7) If the maintenance messages related to the 2.5 bleed valve actuator failure appear with the ECAM warning for engine compressor vane fuel consumption increased thrust limited, refer to LPC (2.5) bleed valve actuator mechanically stuck open - track check (Ref. TSM TASK 75-32-00-810-832).
(8) If the maintenance messages related to High Pressure Compressor (HPC) Stator Vane Actuator (SVA) primary failure appear with the ECAM warning for engine compressor vane thrust limited refer to HPC SVA master actuator / mechanical failure resulting in inability to position actuator (Ref. TSM TASK 75-31-00-810-819).
(9) If the maintenance messages related to the T2 sensor disagree with ADIRU sensor, refer to T2 in disagreement with ADIRUx or T2 in range failed (Ref. TSM TASK 73-21-00-810-897).
(10) If the maintenance messages related to the Pamb sensor disagree with ADIRU sensor appear, refer to Pamb in range failed (Ref. TSM TASK 73-21-00-810-902).
(11) If the maintenance messages related to the P2 calculated disagree with ADIRU sensor appear, refer to P2 Synthesized in Disagreement with ADIRUx (Ref. TSM TASK 73-21-00-810-894).
(12) If there are no EEC monitored faults or messages recorded and the engine idle parameters are not within the proper operating range, check the burner pressure sensing lines AMM 73-21-00-200-806.
(13) If you do not find any problems, make sure that the aircraft pneumatic system is operating properly AMM 36-11-00-710-802.
(14) If you do not find any problems, make sure the intake anti-ice system is operating properly AMM 30-21-00-200-802.
(15) If you do not find any problems, do an operationnal test of the Engine Interface Unit (EIU) with the Centralized FaultDisplay System (CFDS) AMM 73-25-34-710-802.
(a) Check for any fault message involving Landing Gear Control and Interface Unit (LGCIU) or slat extension.
(b) Troubleshoot any messages as necessary.
(16) If you do not find any problems:
(a) Replace INTEGRATED FUEL PUMP AND CONTROL [4360KS] AMM 73-11-01-000-801 and AMM 73-11-01-400-801.
(17) If not previously, accomplished run the engine at idle AMM 73-21-00-710-807.
(18) If the problem continues:
(a) Replace
Subtask 71-00-00-860-090-A ** ON A/C NOT FOR ALL
A. Put the aircraft back to its initial configuration.
(1) Make sure that the work area is clean and clear of tools and other items.
(1) Make sure that the work area is clean and clear of tools and other items.