R 1_ If nothing is found:
R - replace the EIU-1 (1KS1) (Ref. AMM TASK 73-25-34-000-040)
R and (Ref. AMM TASK 73-25-34-400-040).

R (3) If the fault continues:
R - replace the SENSOR-OIL TEMP (4004EN) (Ref. AMM TASK 79-32-15-000-R 041) and (Ref. AMM TASK 79-32-15-400-041).

R (4) If the fault continues:
R - Check carrefully electrical connector at the oil temperature sensor
R (4004EN) for looseness, damaged pins or contamination.

R (a) If damage is found:
R - repair or replace as necessary.

R (b) If nothing is found:
R - do a check of the aircraft wiring between the oil temperature
R sensor (4004EN) and the EIU (1KS1) for open or short to ground
R (Ref. ASM 79-36/01) pin AA/1 to pin AA/10F. Pay particular
R attention to engine to pylon connectors 4005VC-A, 405VC-A,
R 4006VC-A and 406VC-A and to ground wire connections (9951DC,
R 9956DC and 9957DC) on Engine Fan Case (check for looseness or
R contamination).

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R  1_  if damage is found:
R  - repair or replace the harness as necessary (Ref. AMM TASK 
R  71-51-43-000-001) and (Ref. AMM TASK 71-51-43-400-001). 
R  2_  if nothing is found:
R  - repeat the fault isolation procedure. 
R  B. Test. 
R  (1) Not applicable. 
R

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 TASK 79-00-00-810-807
 Failure of the Oil Pressure Indication on Engine 1
 1. Possible Causes
_______________
 - XMTR-OIL PRESS (4003EN) R - SDAC-1 (1WV1) R - SDAC-2 (1WV2)
 - lubrication unit
 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
R  AMM 31-55-34-000-001 Removal of the SDAC (1WV1,1WV2)
R  AMM 31-55-34-400-001 Installation of the SDAC (1WV1,1WV2) AMM 71-00-00-000-042 Removal of the Power Plant AMM 71-00-00-400-042 Installation of the Power Plant AMM 71-00-00-710-006 Minimum Idle Check AMM 72-31-00-290-002 Inspection of the High Pressure Compressor Rotor
 Assembly AMM 72-56-00-000-001 Removal of the Flame Arrestor and Flange Assembly AMM 72-56-00-400-001 Installation of the Flame Arrestor and Flange
 Assembly AMM 79-00-00-210-002 Walk-around Inspection 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 AMM 79-21-10-000-004 Removal of the Lubrication Unit AMM 79-21-10-400-004 Installation of the Lubrication Unit AMM 79-33-15-000-041 Removal of the Oil Pressure Transmitter (4003EN) AMM 79-33-15-400-041 Installation of the Oil Pressure Transmitter (4003EN) AMM 79-35-00-040-042 Replacement of the Main Oil Supply Filter and Check
 of the Electrical Chip Detector Visual Indicator (pop-out) R ASM 79-36/01
 3. Fault Confirmation
__________________
 A. Test
 (1) Not applicable.
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 4. Fault Isolation
_______________
 A. Do a visual inspection of the engine to make sure that there are no leaks (Ref. AMM TASK 79-00-00-210-002) .
 (1) Do a check of the electric master magnetic chip detector visual indicator (Ref. AMM TASK 79-35-00-040-042) and the magnetic chip detector (Ref. AMM TASK 79-00-00-281-002) and the scavenge screen plugs (Ref. AMM TASK 79-00-00-281-003).

 (a) If you find magnetic particles:
 - follow the related instructions per (Ref. AMM TASK 79-00-00-281-002) and NDT Manual (section CHIP ANALYSIS).

 (2) If nothing is found:

 - do a check for cracks/leaks at oil tank, lubrication, external oil supply and scavenge lines.
 (a) If there is sign of heavy oil discharge in the center vent tube:

 - replace the engine (Ref. AMM TASK 71-00-00-000-042) and (Ref. AMM TASK 71-00-00-400-042).
　
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