3. Fault Confirmation
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A. Test
(1) Do the operational test of the pressure control and monitoring system (Ref. AMM TASK 21-31-00-710-002).
4. Fault Isolation
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A. If the test cannot be done with the CPC 1:
- swap the CPC 1 (11HL) and the CPC 2 (12HL) (Ref. AMM TASK 21-31-34-000-001) and (Ref. AMM TASK 21-31-34-400-001).
(1) If the fault moves with the CPC 1:
- swap back the CPC 1 (11HL) and the CPC 2 (12HL) (Ref. AMM TASK 21-31-34-000-001) and (Ref. AMM TASK 21-31-34-400-001).
(a) Replace the CONTROLLER-CABIN PRESSURE 1 (11HL) (Ref. AMM TASK 21-31-34-000-001) and (Ref. AMM TASK 21-31-34-400-001).
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞21-31-00∞∞∞∞∞∞∞∞∞∞Page 284
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(2) If the fault does not move with the CPC 1:
- swap back the CPC 1 (11HL) and the CPC 2 (12HL) (Ref. AMM TASK 21-31-34-000-001) and (Ref. AMM TASK 21-31-34-400-001).
(a) Replace the VALVE-OUTFLOW (10HL), ELECTRONIC MODULE 1 (Ref. AMM TASK 21-31-51-000-002) and (Ref. AMM TASK 21-31-51-400-002).
NOTE : The electronic module 1 is connected to the electrical
____
connector 10HL-A.
(3) If the fault continues:
- do a check and repair the wiring from the:
- CPC 1 connector (11HL-AA) pins 7A, 8A, 9A and 10A to the OFV connector (10HL-A) pins R, P, N and M (Ref. ASM 21-31/02).
(4) If the fault continues:
- do a check of the earthing resistance at the return ground connections (Ref. AMM 21310076000100) on:
- the CPC 1 connector 11HL-AC, pin 2 and on,
- the electronic module 1 connector 10HL-A, pin J.
(5) If the fault continues:
- do a check and repair the wiring from the:
- CPC 1 connector (11HL-AC) pin 3 to the CB (1HL),
- CPC 1 connector (11HL-AC) pins 2, 4 and 13D to the GND (Ref. ASM 21-31/01).
B. Do the test as given in the Para. 3.A.
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞21-31-00∞∞∞∞∞∞∞∞∞∞Page 285
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CES
TASK 21-31-00-810-843
Outlow Valve Mistakenly Reported Not Open On Ground
1. Possible Causes
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- SDAC-1 (1WV1)
- SDAC-2 (1WV2)
- CONTROLLER-CABIN PRESSURE 1 (11HL)
- VALVE-OUTFLOW (10HL)
- Outflow Valve Feedback-Assembly 10HL6
- wiring
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 21-31-00-710-002 Operational Test of the Pressure Control and
Monitoring AMM 21-31-34-000-001 Removal of the Cabin Pressure Controller (11HL,12HL) AMM 21-31-34-400-001 Installation of the Cabin Pressure Controller
(11HL,12HL) AMM 21-31-51-000-001 Removal of the Outflow Valve 10HL (From Inside) AMM 21-31-51-000-005 Removal of the Outflow Valve (10HL) - Feedback
Assembly 10HL-6 AMM 21-31-51-000-006 Removal of the Outflow Valve 10HL (From Outside) AMM 21-31-51-400-001 Installation of the Outflow Valve 10HL (From Inside) AMM 21-31-51-400-005 Installation of the Outflow Valve (10HL) - Feedback
Assembly 10HL-6 AMM 21-31-51-400-006 Installation of the Outflow Valve 10HL (From Outside) AMM 31-55-34-000-001 Removal of the SDAC (1WV1,1WV2) AMM 31-55-34-400-001 Installation of the SDAC (1WV1,1WV2) ASM 21-31/01 ASM 21-31/03
3. Fault Confirmation
__________________
A. Test
(1) Do the operational test of the pressure control and monitoring system (Ref. AMM TASK 21-31-00-710-002).
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞21-31-00∞∞∞∞∞∞∞∞∞∞Page 286
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CES
4. Fault Isolation
_______________
A. Test Results
NOTE : This procedure is only applicable for:
____
- Outflow Valve Part Numbers 9023-15705-81 and previous.
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