(b) 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).
(c) 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,
「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 225
May 01/04R CES
- 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).
(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).
R R G. If the crew or the POST FLIGHT REPORT confirms the fault but: - the outflow valve is fully closed after take-off and, - the POST FLIGHT REPORT does not give a maintenance message,
R (1) Do a check for,
R R R R (a) cracks or malfunctions of, - the air conditioning pack ducts, - the trim air ducts, the isolation valves and the bleed air system (Ref. AMM TASK 21-52-00-200-001).
R (b) correct function of the skin air valves.
R R R R R R R R R R R R R (c) structural damage (Ref. SIL 21-040) and (Ref. AMM TASK 05-53-00-780-003) with special attention to, - the cargo door seals (Ref. AMM TASK 52-30-00-200-002), - the avionics compartment hatch seals (Ref. AMM TASK 52-41-00-210-001), - the passenger door seals (Ref. AMM TASK 52-10-00-220-006), - the emergency exit seals (Ref. AMM TASK 52-21-00-200-002), - the outflow valve seals (Ref. AMM TASK 21-31-00-100-001), - the emergency ram air check valve (Ref. AMM TASK 21-55-41-210-001), - the hydraulic pipe connections/seals at the rear bulkhead and, - the water drain valves in the lower fuselage (Ref. AMM TASK 53-00-00-210-001).
5. Close-up________
A. Put the aircraft back to its initial configuration.
TASK 21-31-00-810-810
Low Differential Pressure
1. Possible Causes
_______________
2. Job Set-up Information
______________________
Not Applicable
3. Fault Confirmation
__________________
A. Not applicable, you cannot confirm this fault on the ground.
4. Fault Isolation
_______________
R A. If the POST FLIGHT REPORT gives a maintenance message, refer to the Fault R Symptoms List for the applicable trouble shooting procedures.
B. If the POST FLIGHT REPORT gives no maintenance message:
- no other maintenance action is necessary.
5. Close-up
________
A. Put the aircraft back to its initial configuration.
TASK 21-31-00-810-811
Landing Field Elevation Fault
1. Possible Causes
_______________
- CONTROLLER-CABIN PRESSURE 1 (11HL)
- CONTROLLER-CABIN PRESSURE 2 (12HL)
- SEL-CABIN PRESS/LDG ELEV AUTO (20HL)
- 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)
ASM 21-31/01
ASM 21-31/01
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).
(2) Do a read-out of the CLASS 3 FAULTS report of the CPCS.
NOTE : If a fault is detected, the applicable report of the CPC shows
____ a fault code for shop maintenance in addition to the related CFDS message(s). For detailed information see the applicable Page Block 301.
4. Fault Isolation
_______________
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