- engine
- aircraft wiring
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 71-00-00-710-006 Minimum Idle Check AMM 79-00-00-281-002 Check of the Electrical Master Chip Detector for Particles AMM 79-00-00-281-003 Check of FWD, AFT Sump, AGB, and TGB scavenge screens R AMM 79-21-10-920-002 Remove and Discard Supply Filter AMM 79-35-15-000-003 Removal of the Oil Filter Differential Pressure Switch AMM 79-35-15-400-003 Installation of the Oil Filter Differential Pressure Switch
3. Fault Confirmation
__________________
A. Test
(1) Do a check to see if the ENG FILTER CLOG warning message comes into view on the upper ECAM display unit with the DMC3 switched on.
4. Fault Isolation
_______________
A. The ECAM warning is triggered if a clogging of the oil scavenge filter element is detected.
NOTE : If the warning is triggered temporarily during engine start with
____ low engine oil temperature (lower than 40 deg.C (104 deg.F)), no maintenance action is required. Check for correct operation after next start with oil temperature above 40 deg.C (104 deg.F).
(1) Do the following checks:
- do a check of the lubrication unit magnetic plugs and screens (Ref. AMM TASK 79-00-00-281-002),
- do a check of the lube supply and common scavenge filters clogging indicators (Ref. AMM TASK 79-00-00-281-003).
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ER (2) Remove and replace the main oil supply filter (Ref. AMM TASK 79-21-R 10-920-002).
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(3) If the fault continues:
- replace the SW-OIL FILTER DIFF PRESS (4001EN) (Ref. AMM TASK 79-35-15-000-003) and (Ref. AMM TASK 79-35-15-400-003).
(4) If the fault continues:
(a) Do a check of the aircraft wiring between the oil filter differential pressure switch (4001EN) and SDAC1/SDAC2 for short to ground:
- repair or replace the wiring as required.
B. Do a minimum idle leak check (Ref. AMM TASK 71-00-00-710-006).
(1) No additional maintenance action is required if the fault is not confirmed.
(2) Repeat the fault isolation procedure if the fault continues.
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TASK 79-00-00-810-821
Oil Filter Clogged on Engine 2
1. Possible Causes
_______________
- SW-OIL FILTER DIFF PRESS (4001EN)
- oil scavenge filter element
- engine
- aircraft wiring
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 71-00-00-710-006 Minimum Idle Check AMM 79-00-00-281-002 Check of the Electrical Master Chip Detector for Particles AMM 79-00-00-281-003 Check of FWD, AFT Sump, AGB, and TGB scavenge screens R AMM 79-21-10-920-002 Remove and Discard Supply Filter AMM 79-35-15-000-003 Removal of the Oil Filter Differential Pressure Switch AMM 79-35-15-400-003 Installation of the Oil Filter Differential Pressure Switch
3. Fault Confirmation
__________________
A. Test
(1) Do a check to see if the ENG FILTER CLOG warning message comes into view on the upper ECAM display unit with the DMC3 switched on.
4. Fault Isolation
_______________
A. The ECAM warning is triggered if a clogging of the oil scavenge filter element is detected.
NOTE : If the warning is triggered temporarily during engine start with
____ low engine oil temperature (lower than 40 deg.C (104 deg.F)), no maintenance action is required. Check for correct operation after next start with oil temperature above 40 deg.C (104 deg.F).
(1) Do the following checks:
- do a check of the lubrication unit magnetic plugs and screens (Ref. AMM TASK 79-00-00-281-002),
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