- replace the BOARD-ANN LT TEST & INTFC (5LP) (Ref. AMM TASK 33-14-33-000-001) and (Ref. AMM TASK 33-14-33-400-001).
(a) If the fault continues:
- do a check and repair the wiring of the annunciator light test and interface board (5LP) from pin A/31 to the first terminal block (Ref. ASM 26-12/01).
(b) If they do not come 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).
1 If the fault continues:
_
- do a check and repair the wiring of the ENG/APU fire panel (1WD) from pin A/A to the first terminal block and from pin A/B to the pin A/17 of the annunciator light test and interface board (5LP) (Ref. ASM 26-12/01).
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.
「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 238
Feb 01/04R
CES Loss of the Second and Fourth Rows of the Legend of the ENG 1 FIRE Pushbutton Switch
1. Possible Causes
_______________
- BOARD-ANN LT TEST & INTFC (18LP)
- ENG/APU FIRE PNL (1WD)
- wiring of the annunciator light test and interface board (18LP)
- wiring of the ENG/APU fire panel (1WD)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
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)
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. 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 during the test, the second and fourth rows of the legend of the ENG 1 FIRE pushbutton switch do not come on: - on the panel 25VU, set the ANN LT switch to TEST and do a check to see
if the second and fourth rows of the legend of the ENG 1 FIRE pushbutton switch come on.
「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 239
May 01/05 CES (1) If they come on:
- replace the BOARD-ANN LT TEST & INTFC (18LP) (Ref. AMM TASK 33-14-33-000-001) and (Ref. AMM TASK 33-14-33-400-001).
(a) If the fault continues:
