- push the MODE SEL pushbutton switch to the AUTO mode (the MAN legend goes off).

 (b) If the difference between the auto and manual cabin altitude is more then 1000FT.

 - replace the CONTROLLER-CABIN PRESSURE 1 (11HL) (Ref. AMM TASK 21-31-34-000-001) and, (Ref. AMM TASK 21-31-34-400-001).
R (3) If the fault continues:
 - do the operational test of the flight warning computer (Ref. AMM TASK 31-50-00-710-002).
R (4) If the fault continues:
R - do a check and repair the wiring (Ref. ASM 21-31/03) from:
R - the CPC 1 (11HL) to the FWC 1 (1WW1) and FWC 2 (1WW2),
R
R - the CPC 1 (11HL) to the SDAC 1 (1WV1) and,
R
R - the CPC 1 (11HL) to the SDAC 2 (1WV2).
R

 C. If the crew or the POST FLIGHT REPORT confirms the fault but,
 - the outflow valve does not close during the flight and,

 - the POST FLIGHT REPORT gives no maintenance message,

 (1) Make a print out of:
 - the POST FLIGHT REPORT,

 - the CPC1 and CPC2 LAST LEG REPORT and the PREVIOUS LEG REPORT and,

 - if available the ECS REPORT 19.

 「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 223
 May 01/04 CES

 (2) Replace the CONTROLLER-CABIN PRESSURE 1 (11HL) and the CONTROLLER-CABIN PRESSURE 2 (12HL) (Ref. AMM TASK 21-31-34-000-001) and, (Ref. AMM TASK 21-31-34-400-001).
 (a) If possible do print out of the NON-VOLATILE MEMORY read-out.
 NOTE : It is recommended to:
____
 - advise Airbus Industrie in case excessive cabin altitude is experienced and,

 - provide Airbus Industrie with the information given by the reports in work steps (1) and (2)(a).

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

 NOTE : It is recommended that the removed outflow valve and
____ controllers should be returned to the vendor for a detailed examination.
 D. If the crew or the POST FLIGHT REPORT confirms the fault but the outflow valve remains open after take-off and,
 - the POST FLIGHT REPORT does not give a maintenance message,
 (1) Do a check of the wiring for open circuit or ground at the: LGCIU-1 connector (5GA1/AB) pin C3 and, LGCIU-2 connector (5GA2/AB) pin C3.
 NOTE : Ground signal could be determined by connecting 28V with a 30
____ kOhm series resistance to the pin. The voltage at the pin should be less than 5V.
 (a) If there is an open circuit replace the LGCIU-1 (5GA1) or the LGCIU-2 (5GA2) (Ref. AMM TASK 32-31-71-000-001) and, (Ref. AMM TASK 32-31-71-400-001).

 (b) If there is no open circuit do check and repair the wiring from the:

 - CPC1 connector (11HL/AB) pin 1B to the LGCIU-1 connector (5GA1/AB) pin C3,

 - CPC2 connector (12HL/AB) pin 1B to the LGCIU-1 connector (5GA1/AB) pin C3,

 - CPC1 connector (11HL/AB) pin 2B to the LGCIU-2 connector (5GA2/AB) pin C3 and,

 - CPC2 connector (12HL/AB) pin 2B to the LGCIU-2 connector (5GA2/AB) pin C3. (Ref. ASM 21-31/00).

 「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 224
 May 01/04R CES

 (2) If the fault continues:
 - replace the CONTROLLER-CABIN PRESSURE 1 (11HL) or the CONTROLLER-CABIN PRESSURE 2 (12HL) (Ref. AMM TASK 21-31-34-000-001) and, (Ref. AMM TASK 21-31-34-400-001).
 E. If the crew or the POST FLIGHT REPORT confirms the fault but:
 - the outflow valve remains more than half open after take-off and,

 - the POST FLIGHT REPORT does not give a maintenance message,

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

 (2) If the fault continues:

 - replace the CONTROLLER-CABIN PRESSURE 1 (11HL) or the CONTROLLER-CABIN PRESSURE 2 (12HL) (Ref. AMM TASK 21-31-34-000-001) and, (Ref. AMM TASK 21-31-34-400-001).
 F. If the crew or the POST FLIGHT REPORT confirms the fault but:
 - the outflow valve is less than half open after take-off and the cabin is constantly depressurized and,

 - the POST FLIGHT REPORT does not give a maintenance message,

 (1) Do a check of the wiring for open circuit or ground at the: LGCIU-1 connector (5GA1/AB) pin C3 and, LGCIU-2 connector (5GA2/AB) pin C3.
　
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