DOC AIRBUS | TSM A320FOil Overtemperature on Engine 1
1. Possible Causes
· ACOC ( 6002EM )
· FCOC ( 6003EM )
· EEC ( 4000KS )
2 Job Set-up Information
A. Referenced Information
REFERENCE DESIGNATION
Ref. AMM 71-13-00-410-010 Closing of the Fan Cowls 437AL(447AL),438AR(448AR)
Ref. AMM 73-22-34-000-010 Removal of the Electronic Engine Control (EEC)
Ref. AMM 73-22-34-400-010 Installation of the Electronic Engine Control (EEC)
Ref. AMM 79-21-42-000-010 Removal of the Air Cooled Oil Cooler
Ref. AMM 79-21-42-400-010 Installation of the Air Cooled Oil Cooler
Ref. AMM 79-21-43-000-010 Removal of the Fuel Cooled Oil Cooler
Ref. AMM 79-21-43-400-010 Installation of the Fuel Cooled Oil Cooler
3. Fault Confirmation
Subtask 73-22-00-710-202-A
A. Test
Not applicable, you cannot always confirm this fault on the ground.
4. Fault Isolation
PRE SB 28-1100 for A/C 0101-0101
Subtask 73-22-00-810-132-A
A. If the fault symptom is identified by the CFDS message HMS-ENG OIL OVTMP1 and the ECAM warning
ENG 1 OIL HI TEMP:
· replace the ACOC ( 6002EM ) Ref. AMM 79-21-42-000-010 and Ref. AMM 79-21-42-400-010 .
(1) If the fault continues:
· examine the ACOC air ducts for blockage.
(2) If the fault continues:
· replace the FCOC ( 6003EM ) Ref. AMM 79-21-43-000-010 and Ref. AMM 79-21-43-400-010 .
(3) If the fault continues:
· replace the EEC ( 4000KS ) Ref. AMM 73-22-34-000-010 and Ref. AMM 73-22-34-400-010 .
** ON A/C
POST SB 28-1100 for A/C 0101-0101
Subtask 73-22-00-810-132-B
A. If the fault symptom is identified by the CFDS message HMS-ENG OIL OVTMP1 and the ECAM warning
ENG 1 OIL HI TEMP:
· replace the ACOC ( 6002EM ) Ref. AMM 79-21-42-000-010 and Ref. AMM 79-21-42-400-010 .
(1) If the fault continues:
· examine the ACOC air ducts for blockage.
(2) If the fault continues:
· replace the FCOC ( 6003EM ) Ref. AMM 79-21-43-000-010 and Ref. AMM 79-21-43-400-010 .
(3) If the fault continues:
· replace the EEC ( 4000KS ) Ref. AMM 73-22-34-000-010 and Ref. AMM 73-22-34-400-010 .
(4) If the fault continues:
· Inspect the Wing Tank Temperature Dummy Load Resistors (41QJ and 42QJ for the correct value)
(Ref. SB 28-1100).
Subtask 73-22-00-710-203-A
B. After the subsequent flight, make sure that the fault does not continue.
5. Close-up
Subtask 73-22-00-860-164-A
A. Make sure that the fan cowls 437AL and 438AR are closed Ref. AMM 71-13-00-410-010 . [Rev.6 from Feb 2017] 2026.04.04 04:36:19 UTC