- do a visual inspection for any trace of water ingress or corrosion.

 (1) If damage is found:
 - repair or replace as necessary the BOARD-ANN LT TEST & INTFC (18LP) (Ref. AMM TASK 33-14-33-400-001).
 (a) If the fault continues:
 - do a check and repair the wiring (Ref. ASM 26-12/01) between the annunciator light test and interface board (18LP) pin A/5 and the ENG/APU FIRE panel (1WD) pin B/B.
 C. Do the test given in Para. 3.

 ENG 2 Fire Panel/Switch Illumination without Associated ECAM Warning
 1. Possible Causes
_______________
 - BOARD-ANN LT TEST & INTFC (5LP)

 - BOARD-ANN LT TEST & INTFC (18LP)

 - trace of water ingress or corrosion

 - wiring

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 26-12-00-710-001 Operational Check of Loop/Squib AMM 33-14-33-000-001 Removal of the Annunciator-Light Test and Interface-Board (1LP, 2LP, 3LP, 4LP, 5LP, 6LP, 7LP, R 8LP, 9LP, 10LP, 11LP, 12LP, 18LP, 19LP, 20LP) AMM 33-14-33-400-001 Installation of the Annunciator-Light Test and Interface-Board (1LP, 2LP, 3LP, 4LP, 5LP, 6LP, 7LP, R 8LP, 9LP, 10LP, 11LP, 12LP, 18LP, 19LP, 20LP) ASM 26-12/01
 3. Fault Confirmation
__________________
 A. Test
 (1) Do the operational test of the engine fire and overheat detection (loop/squib) to make sure that the ECAM warning is deployed on ECAM (Ref. AMM TASK 26-12-00-710-001).
 4. Fault Isolation
_______________
 A. If the legend of the ENG2 FIRE pushbutton switch is on and the FIRE legend of the ENG/2 FIRE/FAULT annunciator is on:
 - remove the annunciator light test and interface board (5LP) (Ref. AMM TASK 33-14-33-000-001),

 - do a visual inspection for any trace of water ingress or corrosion.

 (1) If damage is found:
 - repair or replace as necessary the BOARD-ANN LT TEST & INTFC (5LP) (Ref. AMM TASK 33-14-33-400-001).
 (a) If the fault continues:
 - do a check and repair the wiring (Ref. ASM 26-12/01) between: . the annunciator light test and interface board (5LP) pin A/18 and the ENG/APU FIRE panel (1WD) pin D/B
 「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 ∞∞26-12-00∞∞∞∞∞∞∞∞∞∞Page A207
 May 01/05 CES . the annunciator light test and interface board (5LP) pin A/10 and the ANN ENG/2 FIRE/FAULT (5KS2) pin A/7.

 B. If the legend of the ENG2 FIRE pushbutton switch is on :
 - remove the annunciator light test and interface board (18LP) (Ref. AMM TASK 33-14-33-000-001),

 - do a visual inspection for any trace of water ingress or corrosion.

 (1) If damage is found:
 - repair or replace as necessary the BOARD-ANN LT TEST & INTFC (18LP) (Ref. AMM TASK 33-14-33-400-001).
 (a) If the fault continues:
 - do a check and repair the wiring (Ref. ASM 26-12/01) between the annunciator light test and interface board (18LP) pin A/1 and the ENG/APU FIRE panel (1WD) pin C/B.
 C. Do the test given in Para. 3.

 APU FIRE AND OVERHEAT DETECTION - FAULT ISOLATION PROCEDURES
____________________________________________________________
 TASK 26-13-00-810-801
 APU Detection Loop A and/or Loop B Fault
 1. Possible Causes
_______________
 - DETECTOR-APU FIRE (LOOP A) (21WG)

 - FDU-APU (13WG)

 - DETECTOR-APU FIRE (LOOP B) (22WG)

 - wiring

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 26-13-00-710-001 Operational Test of the APU Fire and Overheat
 Detection System AMM 26-13-15-000-001 Removal of the Sensing Elements 21WG and 22WG AMM 26-13-15-400-001 Installation of the Sensing Elements 21WG and 22WG AMM 26-13-15-710-051 AMM 26-13-34-000-001 Removal of the APU Fire-Detection Unit (FDU) (13WG) AMM 26-13-34-400-001 Installation of the APU Fire-Detection Unit (FDU)
 (13WG) ASM 26-13/01 R
 3. Fault Confirmation
__________________
　
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