W DOC AIRBUS | TSM A320F

Engine 1 oil temperature read by the IDG oil temperature control sensor is higher than 135 deg.C (275 deg.F)

TASK 79-40-00-810-801-A
Engine 1 oil temperature read by the IDG oil temperature control sensor is higher than 135 deg.C (275 deg.F)

1. Possible Causes
  • IDG
  • EIU
  • fuel return valve
  • 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]
  • IDG oil cooler assembly
  • IDG oil temperature control sensor (not 4004EN)
  • ECU [4000KS]
  • VALVE-PRESSURE HOLDING, L WING TANK [124QM]
  • fuel recirculation check-valve
  • FADEC oil temperature sensor (not 4004EN)
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 28-16-41-000-001
Removal of the Pressure-Holding Valve
AMM 28-16-41-400-001
Installation of the Pressure-Holding Valve
AMM 28-16-42-000-001
Removal of the Fuel Recirculation Check-valve
AMM 28-16-42-400-001
Installation of the Fuel Recirculation Check-valve
AMM 71-00-00-710-006
Minimum Idle Check
AMM 73-11-50-000-001
Removal of the Fuel Return Valve
AMM 73-11-50-000-002
Removal of the Fuel Return Valve (FRV)
AMM 73-11-50-360-002
Leak Check and Functional Test of the Fuel Return Valve
AMM 73-11-50-400-001
Installation of the Fuel Return Valve
AMM 73-11-50-400-002
Installation of the Fuel Return Valve
AMM 73-11-50-720-001
Functional Test of the Fuel Return Valve
AMM 73-11-60-000-001
Removal of the Integrated Drive Generator (IDG) Oil Cooler Assembly
AMM 73-11-60-000-002
Removal of the Integrated Drive Generator (IDG) Oil Cooler Assembly
AMM 73-11-60-400-001
Installation of the Integrated Drive Generator (IDG) Oil Cooler Assembly
AMM 73-11-60-400-002
Installation of the Integrated Drive Generator (IDG) Oil Cooler Assembly
AMM 73-21-60-000-001
Removal of the Electronic Control Unit (ECU)
AMM 73-21-60-400-001
Installation of the Electronic Control Unit (ECU)
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 79-32-15-000-001
Removal Oil Temperature Sensor (IDG Cooling System Control Sensor)
AMM 79-32-15-000-042
Removal of the Oil Temperature Sensor (IDG Cooling System Control Sensor)
AMM 79-32-15-400-001
Installation Oil Temperature Sensor (IDG Cooling System Control Sensor)
AMM 79-32-15-400-042
Installation of the Oil Temperature Sensor (IDG Cooling System Control Sensor)
3. Fault Confirmation
Subtask 79-40-00-710-050-A ** ON A/C NOT FOR ALL
A. Test
   (1) Not applicable.
4. Fault Isolation
Subtask 79-40-00-810-050-A ** ON A/C NOT FOR ALL
A. Check the log book/crew report and Post Flight Report (PFR) for IDG failure warning or message.
This failure is triggered if the engine oil temperature goes beyond 135 deg.C (275 deg.F) possibly caused by too high IDG oil temperature.
   (1) If IDG failure warning or messages are present, do the related trouble shooting procedure (TSM CFDS chapter 79).
   (2) If no IDG failure warning or messages are present:
     (a) Check the PFR and look for failure messages including the following words: FRV, J7 and/or FRV, J8; EIU ; EIU (031) for possible causes of forced closure of the fuel return valve .
  • If messages are present, do the related trouble shooting procedure (TSM CFDS chapter 21, 73 and 79).
     (b) Check the PFR and look for the following failure messages relative to fuel system elements :
       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 SENSOR 28QJ2
       5 FUEL LEVEL SENSING FLSCU1 7QJ or FUEL LEVEL SENSING FLSCU2 9QJ
     (c) If no failure messages are present:
  • Get a sample of oil from the engine oil tank.
       1 If you can smell fuel presence in the engine oil:
       2 If nothing is found:
  • Do a functional check of the fuel return valve to make sure that it operates correctly AMM 73-11-50-720-001.
         a If the valve does not operate correctly:
         b If the valve operates correctly:
       3 If the fault continues:
       4 If the fault continues:
       5 If the fault continues:
Subtask 79-40-00-810-050-C ** ON A/C NOT FOR ALL
A. Check the log book/crew report and Post Flight Report (PFR) for IDG failure warning or message.
This failure is triggered if the engine oil temperature goes beyond 135 deg.C (275 deg.F) possibly caused by too high IDG oil temperature.
   (1) If IDG failure warning or messages are present, do the related trouble shooting procedure (TSM CFDS chapter 79).
   (2) If no IDG failure warning or messages are present:
     (a) Check the PFR and look for failure messages including the following words: FRV, J7 and/or FRV, J8; EIU ; EIU (031) for possible causes of forced closure of the fuel return valve .
  • If messages are present, do the related trouble shooting procedure (TSM CFDS chapter 21, 73 and 79).
     (b) Check the PFR and look for the following failure messages relative to fuel system elements :
       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 SENSOR 28QJ2
       5 FUEL LEVEL SENSING FLSCU1 7QJ or FUEL LEVEL SENSING FLSCU2 9QJ
     (c) If no failure messages are present:
  • Get a sample of oil from the engine oil tank.
       1 If you can smell fuel presence in the engine oil:
       2 If nothing is found:
  • Do a functional check of the fuel return valve to make sure that it operates correctly AMM 73-11-50-360-002
         a If the valve does not operate correctly:
         b If the valve operates correctly:
       3 If the fault continues:
       4 If the fault continues:
       5 If the fault continues:
Subtask 79-40-00-710-051-A ** ON A/C NOT FOR ALL
B. Test
   (1) Do a minimum idle check AMM 71-00-00-710-006.
   (2) Repeat the fault isolation procedure if the fault continues.
[Rev.8 from Aug 2018] 2026.04.04 04:38:24 UTC
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