- replace the related fire detector: . for DET-FIRE, ENG 2 PYLON LOOP A (3WD2) (Ref. AMM TASK 26-12-16-000-001) and (Ref. AMM TASK 26-12-16-400-001), . for DET-FIRE, FAN LOOP A (4000WD1) (Ref. AMM TASK 26-12-15-000-041) and (Ref. AMM TASK 26-12-15-400-041), . for DET-FIRE, CORE LOOP A (4001WD1) (Ref. AMM TASK 26-12-17-000-040) and (Ref. AMM TASK 26-12-17-400-040),
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 106-149, 155-199, 208-299, 301-399, ∞∞26-12-00∞∞∞∞∞∞∞∞∞∞Page 295
401-499, Aug 01/05 CES B. Do the test given in para. 3.
- connect the electrical connector 2WD2-A on the engine 2 FDU
(2WD2).
2_ If the resistance value is correct:
- do a check and repair the wiring of Loop A I/P from the
engine 2 FDU to the three loop A fire detectors (Ref. ASM
26-12/01).
5. Close-up
________
A. Put the aircraft back to its initial configuration.
(1) On the ECAM control panel, set the UPPER DISPLAY and LOWER DISPLAY potentiometers to OFF.
(2) De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 106-149, 155-199, 208-299, 301-399, ∞∞26-12-00∞∞∞∞∞∞∞∞∞∞Page 296
401-499, Aug 01/05 CES
Loss of the ENG 1 Fire-Test Loop A Input
1. Possible Causes
_______________
- FDU-ENG1 (2WD1)
- wiring
- ENG/APU FIRE PNL (5WD)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 26-12-00-710-002 Operational Test of the Engine Fire and Overheat Detection with the Centralized Fault Display System (CFDS)
AMM 26-12-12-000-001 Removal of the ENG/APU Fire Panel (1WD)
AMM 26-12-12-400-001 Installation of the ENG/APU Fire Panel (1WD)
AMM 26-12-34-000-001 Removal of the Engine Fire-Detection Unit (FDU)
(2WD1,2WD2) AMM 26-12-34-400-001 Installation of the Engine Fire-Detection Unit (FDU) (2WD1,2WD2) ASM 26-12/02
3. Fault Confirmation
__________________
A. Test
(1) Do the operational test of the engine fire and overheat detection from the Multipurpose Control and Display Unit (MCDU) (Ref. AMM TASK 26-12-00-710-002).
4. Fault Isolation
_______________
A. If the test gives the maintenance message CHECK FDU ENG1 FIRE TEST PB SW/FDU ENG1:
- replace the FDU-ENG1 (2WD1) (Ref. AMM TASK 26-12-34-000-001) and (Ref. AMM TASK 26-12-34-400-001).
(1) If the fault continues:
- do a check of the wiring between the ENG/APU fire panel 1WD pin A/N and the engine 1 FDU pin A/C and repair if necessary (Ref. ASM 26-12/02).
(2) If the fault continues:
- do a check and repair the wiring from the ENG/APU fire panel 1WD pin A/M to the circuit breaker 7WD1 (Ref. ASM 26-12/02).
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 106-149, 155-199, 208-299, 301-399, ∞∞26-12-00∞∞∞∞∞∞∞∞∞∞Page 297
401-499, Aug 01/05 CES (3) If the fault continues:
- replace the ENG/APU FIRE PNL (5WD) (Ref. AMM TASK 26-12-12-000-001) and (Ref. AMM TASK 26-12-12-400-001).
B. Do the test given in Para. 3.
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 106-149, 155-199, 208-299, 301-399, ∞∞26-12-00∞∞∞∞∞∞∞∞∞∞Page 298
401-499, Aug 01/05 CES
Loss of the ENG 1 Fire-Test Loop B Input
1. Possible Causes
_______________
- FDU-ENG1 (2WD1)
- wiring
- ENG/APU FIRE PNL (5WD)
中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：A320 Trouble Shooting Manual 排故手册 FIRE PROTECTION 防火(61)
