(3)
De-energize the aircraft electrical circuits
(Ref. TASK 24-41-00-862-002)
(4)
Make sure that the work area is clean and clear of tool(s) and other items.
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TASK 31-50-00-710-002 Operational Test of the Flight Warning Computer (FWC) WARNING : MAKE SURE THAT ALL THE CIRCUITS IN MAINTENANCE ARE ISOLATED BEFORE
_______ YOU SUPPLY ELECTRICAL POWER TO THE AIRCRAFT.
1.
Reason for the Job
__________________
To make sure that the red visual and audio warnings are operated by a FWC.
2.
Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied from the External Power 31-60-00-860-001 EIS Start Procedure
3. Job Set-up
__________ Subtask 31-50-00-860-052
A. Aircraft Maintenance Configuration
(1)
Energize the aircraft electrical circuits
(Ref. TASK 24-41-00-861-002)
(2)
Do the EIS start procedure (Upper ECAM DU and lower ECAM DU only) (Ref. TASK 31-60-00-860-001)
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B. Make sure that this(these) circuit breaker(s) is(are) closed:
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU ENGINE/2/FIRE DET/LOOP B 8WD2 A07 49VU ENGINE/1/FIRE DET/LOOP A 7WD1 A06 49VU FWS/FWC1/SPLY 3WW F01 121VU ENGINE/ENG1 AND 2 FIRE EXTIG/BTL1/SQUIB/B 2WE1 Q44 121VU ENGINE/ENG1 AND 2 FIRE EXTIG/BTL1/SQUIB/A 1WE1 Q43 121VU ENGINE/ENG1 AND 2 FIRE EXTIG/BTL2/SQUIB/B 2WE2 Q42 121VU ENGINE/ENG1 AND 2 FIRE EXTIG/BTL2/SQUIB/A 1WE2 Q41 121VU ENGINE/ENG2/FIRE DET/LOOP A 7WD2 Q39 121VU ENGINE/ENG1/FIRE DET/LOOP B 8WD1 Q38 121VU EIS/FWC2/SPLY 2WW Q07
4. Procedure_________
Subtask 31-50-00-710-052
A. Test
NOTE : Ignore all the indications that are not related to the ECAM
____
system.
-------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
1.
On the REAR C/B 121VU: - open the circuit breaker 2WW.
2.
On the overhead panel 20VU, on the ENG/APU FIRE panel 1WD:
-push the ENG1 loop/squib TEST pushbutton switch.
- on the upper ECAM DU: FWS FWC 2 FAULT indication comes into view.
-you hear the repetitive chime.
- on the glareshield: *half the MASTER WARN lights flash; MASTER for CAPT side, WARN for F/O side.
- on the upper ECAM DU:
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-------------------------------------------------------------------------------
ACTION RESULT -------------------------------------------------------------------------------
3.
Release the ENG1 loop/squib TEST pushbutton switch.
4.
Close the circuit breaker 2WW.
5.
On the ECAM control panel:
-push the CLR key to reset all warnings.
6.
On the OVERHEAD C/B panel 49VU: - open the circuit breaker 3WW.
7.
On the ENG/APU FIRE panel 1WD:
-push the ENG1 loop/squib TEST pushbutton switch.
*the red ENG1 FIRE indication comes into view. - on the lower ECAM DU: *the ENGINE page comes into view.
-the warnings go out of view exceptFWS FWC2 FAULT.
- on the lower ECAM DU: *the DOOR/OXY page comes into view.
-On the upper ECAM DU: *FWS FWC2 FAULT goes out of view.
-after not many seconds, the MASTER lights can come on and some warnings can come into view. *if not, do not do the step 5.
- on the upper ECAM DU:*the MEMO indication comes into view. - on the lower ECAM DU: *the DOOR page comes into view.
- on the upper ECAM DU: FWS FWC 1 FAULT indication comes into view:
-you hear the repetitive chime.
- on the glareshield: *half the MASTER WARN lights flash; WARN for CAPT side, MASTER for F/O side.
- on the upper ECAM DU: *the red ENG1 FIRE indication comes into view.
- on the lower ECAM DU: *the ENGINE page comes into view.
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