- CAB PR OUTFLOW VALVE NOT OPEN and a visual inspection of the outflow valve shows that it is open, then:

 - replace the SDAC-1 (1WV1) (Ref. AMM TASK 31-55-34-000-001) and (Ref. AMM TASK 31-55-34-400-001).

 (2) If the fault continues:

 - replace the SDAC-2 (1WV2) (Ref. AMM TASK 31-55-34-000-001) and (Ref. AMM TASK 31-55-34-400-001).

 (3) If the fault continues:

 - replace the Outflow Valve Feedback-Assembly 10HL6 (Ref. AMM TASK 21-31-51-000-005) and (Ref. AMM TASK 21-31-51-400-005).

 (4) If the fault continues:

 - do a check and repair the wiring between the:

 - OFV connector (10HL-D) pin F and the CPC connector (11HL-AB) pin 1D.

 - OFV connector (10HL-D) pin G and the CPC connector (11HL-AB) pin 2D.

 - OFV connector (10HL-D) pin H and the CPC connector (11HL-AB) pin 3D (Ref. ASM 21-31/01) (Ref. ASM 21-31/03).

 (5) If the fault continues:

 - replace the CONTROLLER-CABIN PRESSURE 1 (11HL) (Ref. AMM TASK 21-31-34-000-001) and (Ref. AMM TASK 21-31-34-400-001).
 B. Test Results
 NOTE : This procedure is only applicable for:
____ - Outflow Valve Part Number 20790-01AA and onwards.
 (1) If the POST FLIGHT REPORT gives the maintenance message:

 - CAB PR OUTFLOW VALVE NOT OPEN and a visual inspection of the outflow valve shows that it is open, then:

 - replace the SDAC-1 (1WV1) (Ref. AMM TASK 31-55-34-000-001) and (Ref. AMM TASK 31-55-34-400-001).

 (2) If the fault continues:

 - replace the SDAC-2 (1WV2) (Ref. AMM TASK 31-55-34-000-001) and (Ref. AMM TASK 31-55-34-400-001).
 「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 287
 Aug 01/02R
 CES

 (3) If the fault continues:

 - do a check and repair the wiring between the:

 - OFV connector (10HL-D) pin F and the CPC connector (11HL-AB) pin 1D.

 - OFV connector (10HL-D) pin G and the CPC connector (11HL-AB) pin 2D.

 - OFV connector (10HL-D) pin H and the CPC connector (11HL-AB) pin 3D (Ref. ASM 21-31/01) (Ref. ASM 21-31/03).

 (4) If the fault continues:

 - replace the VALVE-OUTFLOW (10HL) (Ref. AMM TASK 21-31-51-000-001) and (Ref. AMM TASK 21-31-51-400-001) or or (Ref. AMM TASK 21-31-51-000-006) and (Ref. AMM TASK 21-31-51-400-006).

 (5) If the fault continues:

 - replace the CONTROLLER-CABIN PRESSURE 1 (11HL) (Ref. AMM TASK 21-31-34-000-001) and (Ref. AMM TASK 21-31-34-400-001).
 C. Do the test as given in the Para. 3.A.

 PRESSURE CONTROL AND MONITORING - TASK SUPPORTING DATA
______________________________________________________
 1. Cabin Pressure Controller
_________________________
 A. CFDS Fault Information Additional information about a failed component are available in the MCDU CAB PRESS CONT menu. The related LAST LEG REPORT page shows:
 - the date and time when the fault occurs,

 - the ATA number of the component,

 - the FIN of the component,

 - a fault code for shop maintenance.

 B. Additional BITE Fault Information Handling If a fault is detected by the CPC BITE, a fault code for shop maintenance is shown on the CFDS in addition to the related CFDS message. The subsequent tables show the possible fault codes with their attached fault origins:
R
 NOTE : The table which follows is only applicable to Cabin Pressure
____
 Controller Part Number 9022-15702-10.

 .-------.--------------------------------------.------------------------------. | FAULT | FAULT ORIGIN | CFDS MESSAGE | | CODE | | | |-------|--------------------------------------|------------------------------| | 00 | RAM_FAILED_REG | PRESS CONTROLLER 1 (2) | |-------|--------------------------------------|------------------------------| | 01 | RAM_FAILED_RAM | PRESS CONTROLLER 1 (2) | |-------|--------------------------------------|------------------------------| | 02 | FMS1_DATA_OUT_OF_RANGE | FMGS1 OUT OF RANGE | |-------|--------------------------------------|------------------------------| | 03 | FMS2_DATA_OUT_OF_RANGE | FMGS2 OUT OF RANGE | |-------|--------------------------------------|------------------------------| | 04 | ACT_STATUS_FAIL | OUTFLOW VALVE ELEC 1 (2) | |-------|--------------------------------------|------------------------------| | 05 | CAL_TIME_OPEN_FAIL | OUTFLOW VALVE | |-------|--------------------------------------|------------------------------| | 06 | BACKGROUND_TIMEOUT | | |-------|--------------------------------------|------------------------------| | 07 | SIGNPOST_FAIL | | |-------|--------------------------------------|------------------------------| | 08 | ROM_CRC_FAIL | PRESS CONTROLLER 1 (2) | |-------|--------------------------------------|------------------------------| | 09 | RS422_WR_FAIL | CONTR | |-------|--------------------------------------|------------------------------| | 10 | RS422_CHECKSM_FAIL | CONTR | |-------|--------------------------------------|------------------------------| | 11 | CAL_TIME_CLOSE_FAIL | OUTFLOW VALVE | |-------|--------------------------------------|------------------------------| | 12 | WDT_TRIPPED_EARLY_FAIL | PRESS CONTROLLER 1 (2) |
　
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