W DOC AIRBUS | TSM A320F

Abnormal Oil Temperature on Engine 1 or on Engine 2

TASK 79-00-00-810-805-A
Abnormal Oil Temperature on Engine 1 or on Engine 2

1. Possible Causes
  • IDG, FRV(Oil temp)
  • SENSOR-TEMP, LEFT WING TK OUTER CHANNEL A [30QJ1]
  • SENSOR-TEMP, RIGHT WING TK OUTER CHANNEL A [30QJ2]
  • SENSOR-TEMP, LEFT WING TK INNER CHANNEL A [29QJ1]
  • SENSOR-TEMP, RIGHT WING TK INNER CHANNEL A [29QJ2]
  • SENSOR-LOW LEVEL, LEFT WING TK INNER CHANNEL A [38QJ1]
  • SENSOR-LOW LEVEL, RIGHT WING TK INNER CHANNEL A [38QJ2]
  • SENSOR-HIGH LVL, LEFT WING SURGE TK CHANNEL A [28QJ1]
  • SENSOR-HIGH LVL, RIGHT WING SURGE TK CHANNEL A [28QJ2]
  • FLSCU-1 [7QJ]
  • FLSCU-2 [9QJ]
  • oil/fuel heat exchanger
  • EIU-1 [1KS1]
  • EIU-2 [1KS2]
  • SENSOR-OIL TEMP [4004EN]
  • aircraft wiring
  • IDG, FRV (Oil Temp)
2. Job Set-up Information
 A. Referenced Information
REFERENCE
DESIGNATION
TSM TASK 28-46-00-810-812-A
L(R) Surge Tank Overflow Sensor 28QJ1(2)
TSM TASK 28-46-00-810-813-A
L(R) Inner Temperature Sensor 29QJ1(2)
TSM TASK 28-46-00-810-814-A
L(R) Outer Temperature Sensor 30QJ1(2)
TSM TASK 28-46-00-810-815-A
L(R) IDG Shut Off Sensor 38QJ1(2)
TSM TASK 28-46-00-810-818-A
FLSCU1(2) 7QJ(9QJ)
AMM 71-51-43-000-001
Removal of the Left Side Harness
AMM 71-51-43-400-001
Installation of the Left Side Harness
AMM 71-51-44-000-007
Removal of the Left Side Harness 238W0904
AMM 71-51-44-400-007
Installation of the Left Side Harness 238W0904
AMM 73-25-34-000-040
Removal of the Engine Interface Unit (EIU)
AMM 73-25-34-400-040
Installation of the Engine Interface Unit (EIU)
AMM 79-00-00-281-002
Check of the Electrical Master Chip Detector (EMCD) for Particles
AMM 79-21-10-210-002
Check of the Lubrication Unit Magnetic Plugs and Scavenge Screens
AMM 79-21-20-000-001
Removal of the Main Oil/Fuel Heat Exchanger
AMM 79-21-20-000-002
Removal of the Main Oil/Fuel Heat Exchanger
AMM 79-21-20-400-001
Installation of the Main Oil/Fuel Heat Exchanger
AMM 79-21-20-400-002
Installation of the Main Oil/Fuel Heat Exchanger
AMM 79-32-15-000-040
Removal of the Oil Temperature Sensor (Engine Condition Monitoring Sensor)
AMM 79-32-15-000-041
Removal of the Oil Temperature Sensor (Engine Condition Monitoring Sensor)
AMM 79-32-15-400-040
Installation of the Oil Temperature Sensor (Engine Condition Monitoring Sensor)
AMM 79-32-15-400-041
Installation of the Oil Temperature Sensor (Engine Condition Monitoring Sensor)
ASM 793601
3. Fault Confirmation
Subtask 79-00-00-710-058-A ** ON A/C NOT FOR ALL
A. Test
Not applicable.
4. Fault Isolation
Subtask 79-00-00-810-054-D ** ON A/C NOT FOR ALL
A. Procedure.
NOTE: The fault is triggered if:
-the oil temperature was between 140 and 155 deg. C for at least 15 minutes or has exceeded 155 deg. C.
Continuous operation with abnormal IDG high oil temperature may also cause engine oil temperature exceedance.
   (1) Do a check of the PFR and the SMR for ECAM status EIU and/or for failure messages:
     (a) If the failure message IDG, FRV(Oil temp) is displayed:
  • do the applicable trouble shooting procedure (TSM CFDS chapter 79).
     (b) If one of the following failure messages relative to fuel system elements is displayed:
       1 FUEL LEVEL SENSING L OUT TEMP SENSOR 30QJ1 or FUEL LEVEL SENSING R OUT TEMP SENSOR 30QJ2
       2 FUEL LEVEL SENSING L INN TEMP SENSOR 29QJ1 or FUEL LEVEL SENSING R INN TEMP SENSOR 29QJ2
       3 FUEL LEVEL SENSING L LO LEVEL SENSOR 38QJ1 or FUEL LEVEL SENSING R LO LEVEL SENSOR 38QJ2
       4 FUEL LEVEL SENSING L SURGE SENSOR 28QJ1 or FUEL LEVEL SENSING R SURGE SENSOR28QJ2
       5 FUEL LEVEL SENSING FLSCU1 7QJ or FUEL LEVEL SENSING FLSCU2 9QJ
   (2) If the IDG oil was also too high and/or if the warning IDG OIL OVHT has been triggered:
  • do the trouble shooting of the IDG per applicable TSM for abnormal IDG oil temperature.
   (3) If nothing is found or no warning IDG OIL OVHT was triggered:
  • do a check of the lubrication unit magnetic plugs and screens for particles AMM 79-21-10-210-002.
  • get a sample of oil from the engine oil tank
     (a) if you can smell fuel presence in the oil:
     (b) if you cannot smell fuel presence in the oil:
  • do an oil analysis to make sure that the engine oil tank was not serviced with a non approved product.
       1 If nothing is found:
   (4) If the fault continues:
   (5) If the fault continues:
  • Check carrefully electrical connector at the oil temperature sensor (4004EN) for looseness, damaged pins or contamination.
     (a) If damage is found:
  • repair or replace as necessary.
     (b) If nothing is found:
  • do a check of the aircraft wiring between the oil temperature sensor (4004EN) and the EIU-1 (1KS1) (EIU-2 (1KS2)) for open or short to ground ASM 793601 pin AA/1 to pin AA/10F. Pay particular attention to engine to pylon connectors 4005VC-A, 405VC-A, 4006VC-A and 406VC-A and to ground wire connections (9951DC, 9956DC and 9957DC) on Engine Fan Case (check for looseness or contamination).
       1 if damage is found:
       2 if nothing is found:
  • repeat the fault isolation procedure.
Subtask 79-00-00-810-054-E ** ON A/C NOT FOR ALL
A. Procedure.
NOTE: The fault is triggered if:
The oil temperature was between 140 and 155 deg. C for at least 15 minutes or has exceeded 155 deg. C.
Continuous operation with abnormal IDG high oil temperature may also cause engine oil temperature exceedance.
   (1) Do a check of the PFR and the SMR for ECAM status EIU and/or for failure messages:
     (a) If the failure message IDG, FRV (Oil Temp) is displayed:
  • do the applicable trouble shooting procedure (TSM CFDS chapter 79).
     (b) If one of the following failure messages relative to fuel system elements is displayed:
       1 FUEL LEVEL SENSING L OUT TEMP SENSOR 30QJ1 or FUEL LEVEL SENSING R OUT TEMP SENSOR 30QJ2
       2 FUEL LEVEL SENSING L INN TEMP SENSOR 29QJ1 or FUEL LEVEL SENSING R INN TEMP SENSOR 29QJ2
  • do the applicable trouble shooting procedure for SENSOR-TEMP, LEFT WING TK INNER CHANNEL A or SENSOR-TEMP, LEFT WING TK INNER CHANNEL A [29QJ1] ( SENSOR-TEMP, RIGHT WING TK INNER CHANNEL A or SENSOR-TEMP, RIGHT WING TK INNER CHANNEL A [29QJ2] ) (Ref. TSM TASK 28-46-00-810-813).
       3 FUEL LEVEL SENSING L LO LEVEL SENSOR 38QJ1 or FUEL LEVEL SENSING R LO LEVEL SENSOR 38QJ2
       4 FUEL LEVEL SENSING L SURGE SENSOR 28QJ1 or FUEL LEVEL SENSING R SURGE SENSOR28QJ2
       5 FUEL LEVEL SENSING FLSCU1 7QJ or FUEL LEVEL SENSING FLSCU2 9QJ
   (2) If the IDG oil was also too high and/or if the warning IDG OIL OVHT has been triggered:
  • do the trouble shooting of the IDG per applicable TSM for abnormal IDG oil temperature.
   (3) If nothing is found or no warning IDG OIL OVHT was triggered:
  • do a check of the EMCD and screens for particles AMM 79-00-00-281-002.
  • get a sample of oil from the engine oil tank
     (a) if you can smell fuel presence in the oil:
     (b) if you cannot smell fuel presence in the oil:
  • do an oil analysis to make sure that the engine oil tank was not serviced with a non approved product.
       1 If nothing is found:
   (4) If the fault continues:
   (5) If the fault continues:
  • Check carrefully electrical connector at the oil temperature sensor (4004EN) for looseness, damaged pins or contamination.
     (a) If damage is found:
  • repair or replace as necessary.
     (b) If nothing is found:
  • do a check of the aircraft wiring between the oil temperature sensor (4004EN) and the EIU-1 (1KS1) (EIU-2 (1KS2)) for open or short to ground ASM 793601 pin AA/1 to pin AA/10F. Pay particular attention to engine to pylon connectors 4005VC-A, 405VC-A, 4006VC-A and 406VC-A and to ground wire connections (9951DC, 9956DC and 9957DC) on Engine Fan Case (check for looseness or contamination).
       1 if damage is found:
       2 if nothing is found:
  • repeat the fault isolation procedure.
Subtask 79-00-00-810-054-F ** ON A/C NOT FOR ALL
A. Procedure.
NOTE: The fault is triggered if:
-the oil temperature was between 140 and 155 deg. C for at least 15 minutes or has exceeded 155 deg. C.
Continuous operation with abnormal IDG high oil temperature may also cause engine oil temperature exceedance.
   (1) Do a check of the PFR and the SMR for ECAM status EIU and/or for failure messages:
     (a) If the failure message IDG, FRV(Oil temp) is displayed:
  • do the applicable trouble shooting procedure (TSM CFDS chapter 79).
     (b) If one of the following failure messages relative to fuel system elements is displayed:
       1 FUEL LEVEL SENSING L OUT TEMP SENSOR 30QJ1 or FUEL LEVEL SENSING R OUT TEMP SENSOR 30QJ2
       2 FUEL LEVEL SENSING L INN TEMP SENSOR 29QJ1 or FUEL LEVEL SENSING R INN TEMP SENSOR 29QJ2
       3 FUEL LEVEL SENSING L LO LEVEL SENSOR 38QJ1 or FUEL LEVEL SENSING R LO LEVEL SENSOR 38QJ2
       4 FUEL LEVEL SENSING L SURGE SENSOR 28QJ1 or FUEL LEVEL SENSING R SURGE SENSOR28QJ2
       5 FUEL LEVEL SENSING FLSCU1 7QJ or FUEL LEVEL SENSING FLSCU2 9QJ
   (2) If the IDG oil was also too high and/or if the warning IDG OIL OVHT has been triggered:
  • do the trouble shooting of the IDG per applicable TSM for abnormal IDG oil temperature.
   (3) If nothing is found or no warning IDG OIL OVHT was triggered:
  • do a check of the lubrication unit magnetic plugs and screens for particles AMM 79-21-10-210-002.
  • get a sample of oil from the engine oil tank
     (a) if you can smell fuel presence in the oil:
     (b) if you cannot smell fuel presence in the oil:
  • do an oil analysis to make sure that the engine oil tank was not serviced with a non approved product.
       1 If nothing is found:
   (4) If the fault continues:
   (5) If the fault continues:
  • Check carrefully electrical connector at the oil temperature sensor (4004EN) for looseness, damaged pins or contamination.
     (a) If damage is found:
  • repair or replace as necessary.
     (b) If nothing is found:
  • do a check of the aircraft wiring between the oil temperature sensor (4004EN) and the EIU-1 (1KS1) (EIU-2 (1KS2)) for open or short to ground ASM 793601 pin AA/1 to pin AA/10F. Pay particular attention to engine to pylon connectors 4005VC-A, 405VC-A, 4006VC-A and 406VC-A and to ground wire connections (9951DC, 9956DC and 9957DC) on Engine Fan Case (check for looseness or contamination).
       1 if damage is found:
       2 if nothing is found:
  • repeat the fault isolation procedure.
Subtask 79-00-00-710-059-A ** ON A/C NOT FOR ALL
B. Test.
   (1) Not applicable.
[Rev.8 from Aug 2018] 2026.04.04 04:38:20 UTC
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