The DISCH Legend of the ENG 2/AGENT 2 Pushbutton Switch does not Come on
 1. Possible Causes
_______________
 - ENG/APU FIRE PNL (1WD)

 - lamp of the DISCH legend of the ENG 2/AGENT 2 pushbutton switch

 - ENG 2/AGENT 2 pushbutton switch

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------
REFERENCE  DESIGNATION
 -------------------------------------------------------------------------------
ESPM 20-45-11
R  AMM 26-12-00-710-001 Operational Check of Loop/Squib 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)
 3. Fault Confirmation
__________________
 A. Make sure that this(these) circuit breaker(s) is(are) closed:
 -------------------------------------------------------------------------------
PANEL DESIGNATION  IDENT. LOCATION
 -------------------------------------------------------------------------------
122VU LIGHTING/TST/BOARD/SPLY  30LP X06
 B. Test
 (1) Do the operational test of the engine fire and overheat detection (loop/squib) (Ref. AMM TASK 26-12-00-710-001).
 4. Fault Isolation
_______________
 A. If the DISCH legend of the ENG 2/AGENT 2 pushbutton switch does not come on during the fire test: - on the panel 25VU, set the ANN LT switch to TEST and do a check to see
 if the DISCH legend of the ENG 2/AGENT 2 pushbutton switch comes on.
 (1) If the DISCH legend does not come on:
 (a) Replace the lamp of the DISCH legend of the ENG 2/AGENT 2 pushbutton switch.
 - If the fault continues: replace the ENG 2/AGENT 2 pushbutton switch.
 「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 ∞∞26-21-00∞∞∞∞∞∞∞∞∞∞Page 229
 May 01/04 CES

R R  (b) Or replace the ENG 2/AGENT 2 pushbutton switch that has LEDs (Ref. ESPM 20-45-11).
 (2) If the DISCH legend comes on: - replace the ENG/APU FIRE PNL (1WD) (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.
 5. Close-up________
 A. Put the aircraft back to its initial configuration.
 (1) On the panel 25VU, set the ANN LT switch to BRT.

 The DISCH Legend of the ENG 1/AGENT 1 Pushbutton Switch Stays on
 1. Possible Causes
_______________
 - BOTTLE 1-FIRE EXTING, ENG 1 (6WE1)

 - ENG/APU FIRE PNL (1WD)

 - ground signal at the pin A/3 of the engine 1 fire extinguishing bottle 1

 - wiring of the HP discrete signal from the engine 1 fire extinguishing bottle 1 to the ENG/APU FIRE panel (1WD)

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
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 26-21-41-000-001 Removal of the Engine Fire-Extinguisher Bottle

 (6WE1,8WE1,6WE2,8WE2) AMM 26-21-41-400-001 Installation of the Engine Fire-Extinguisher Bottle (6WE1,8WE1,6WE2,8WE2) ASM 26-21/01
 3. Fault Confirmation
__________________
 A. Test
 Not applicable, the fault is evident.
 4. Fault Isolation
_______________
 A. If the DISCH legend of the ENG 1/AGENT 1 pushbutton switch does not go off:
 - disconnect the electrical connector 6WE1-A from the engine 1 fire extinguishing bottle 1

 - do a check for continuity between the pins A/2 and A/3 of the engine 1 fire extinguishing bottle 1.

 (1) If there is no continuity:

 - replace the BOTTLE 1-FIRE EXTING, ENG 1 (6WE1) (Ref. AMM TASK 26-21-41-000-001) and (Ref. AMM TASK 26-21-41-400-001).

 (2) If there is continuity:

 - connect the electrical connector 6WE1-A on the engine 1 fire extinguishing bottle 1

 - replace the ENG/APU FIRE PNL (1WD) (Ref. AMM TASK 26-12-12-000-001) and (Ref. AMM TASK 26-12-12-400-001).

 「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 ∞∞26-21-00∞∞∞∞∞∞∞∞∞∞Page 231
　
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