(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)

 1EFF : ALL 1 31-50-00Page 504 1 1 Feb 01/98 1 1 1CES 1 Subtask 31-50-00-865-054

 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:
 1EFF : ALL 1 31-50-00Page 505 1 1 Feb 01/98 1 1 1CES 1

 -------------------------------------------------------------------------------
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.
 1EFF : ALL 1 31-50-00Page 506 1 1 Feb 01/98 1 1 1CES 1

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