Fire-Extinguisher Bottle 1 FWD-SQUIB Fault A320
1. Possible Causes:
-CARTRIDGE FWD, BOTTLE 1 (4003WX)
-DIR-CIDS, 1 (101RH)
-DIR-CIDS, 2 (102RH)
— (5WX)
-wiring
-P/B switch DISCH (3WX)
2. Job Set-up Information
A. Referenced Information
| REFERENCE | DESIGNATION |
| Ref. AMM 23-73-34-000-001 | Removal of the Cabin Intercommunication Data System (CIDS) Director |
| Ref. AMM 23-73-34-400-001 | Installation of the Cabin Intercommunication Data System (CIDS) Director |
| Ref. AMM 26-23-00-710-001 | Operational Test of the Cargo-Compartment Fire-Extinguishing System |
| Ref. ASM 26-23-01 | |
| Ref. AMM 26-23-41-000-005 | Removal of the Cartridge of the Cargo Fire-Extinguisher Bottle |
| Ref. AMM 26-23-41-400-005 | Installation of the Cartridge of the Cargo Fire-Extinguisher Bottle |
3. Fault Confirmation
SUBTASK 26-23-00-710-062-A
A. Do the operational test of the cargo-compartment fire-extinguishing system Ref. AMM 26-23-00-710-001.
4. Fault Isolation
SUBTASK 26-23-00-810-062-A
A. If the test gives a different maintenance message:
— Do the trouble shooting procedure related to the maintenance message.
SUBTASK 26-23-00-810-065-A
B. If the test gives the maintenance message CRG FIRE BTL 1 FWD SQUIB:
— replace the CARTRIDGE FWD, BOTTLE 1 (4003WX) Ref. AMM 26-23-41-000-005 and Ref. AMM 26-23-41-400-005.
(1) If the fault continues:
— replace the DIR-CIDS, 1 (101RH) Ref. AMM 23-73-34-000-001 and Ref. AMM 23-73-34-400-001.
(2) If the fault continues:
— replace the DIR-CIDS, 2 (102RH) Ref. AMM 23-73-34-000-001 and Ref. AMM 23-73-34-400-001.
(3) If the fault continues:
— do a check and repair the wiring between the:
BOTTLE 1 (4005WX) connector C/B and CIDS DIR 1 (101RH) connector AA/4B,
BOTTLE 1 (4005WX) connector C/B and CIDS DIR 2 (102RH) connector AA/4B,
BOTTLE 1 (4005WX) connector C/A and GND Ref. ASM 26-23-01.
(4) If the fault continues:
— do a check of the P/B switch DISCH (3WX) or (5WX) and replace it if necessary Ref. ASM 26-23-01.
SUBTASK 26-23-00-710-065-A
C. Do the test given in Para. 3.
5. Close-up
SUBTASK 26-23-00-860-056-A
A. Put the aircraft back to its initial configuration.
