AMM - JAT - A318/A319/A320/A321 REV DATE: May 01/2022
Tail Number - MSN - FSN: CC-AWK - 09328 - 102
26-12-00-710-001-A - Operational Check of Loop/Squib
** ON A/C FSN ALL
TASK 26-12-00-710-001-A
Operational Check of Loop/Squib
1. Reason for the Job
Refer to the MPD TASK: 261200-01
OPERATIONAL CHECK OF LOOP/SQUIB
2. Job Set-up Information
A. Work Zones and Access Panels
ZONE/ACCESS ZONE DESCRIPTION
210 CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD
B. Referenced Information
REFERENCE DESIGNATION
Ref. 24-41-00-861-002-A Energize the Aircraft Electrical Circuits from the External Power
Ref. 24-41-00-861-002-A01 Energize the Aircraft Electrical Circuits from the APU
Ref. 24-41-00-861-002-A02 Energize the Aircraft Electrical Circuits from Engine 1(2)
Ref. 24-41-00-862-002-A De-energize the Aircraft Electrical Circuits Supplied from the
External Power
Ref. 24-41-00-862-002-A01 De-energize the Aircraft Electrical Circuits Supplied from the APU
Ref. 24-41-00-862-002-A02 De-energize the Aircraft Electrical Circuits Supplied from the
Engine 1(2)
Ref. 31-60-00-860-001-A EIS Start Procedure
Ref. 31-60-00-860-002-A EIS Stop Procedure
3. Job Set-up
SUBTASK 26-12-00-861-050-A
A. Energize the aircraft electrical circuits Ref. AMM TASK 24-41-00-861-002.
SUBTASK 26-12-00-860-050-A
B. Do the EIS start procedure (upper ECAM DU and lower ECAM DU only)
Ref. AMM TASK 31-60-00-860-001.
SUBTASK 26-12-00-865-050-A
C. Make sure that this(these) circuit breaker(s) is(are) closed:
PANEL DESIGNATION FIN LOCATION
49VU ENGINE/2/FIRE DET/LOOP B 8WD2 A07
JCP Title: 261200-01-1 © AIRBUS S.A.S. ALL RIGHTS RESERVED. Page 1 of 3
CONFIDENTIAL AND PROPRIETARY DOCUMENT. PRINT DATE: Jun 25/2022
AMM - JAT - A318/A319/A320/A321 REV DATE: May 01/2022
Tail Number - MSN - FSN: CC-AWK - 09328 - 102
26-12-00-710-001-A - Operational Check of Loop/Squib
49VU ENGINE/1/FIRE DET/LOOP A 7WD1 A06
** ON A/C FSN 001-103, 105-106, 108-150, 155-200
ENGINE/ENG1 AND 2 FIRE EXTIG
121VU 1WE1 Q43
/BTL1/SQUIB/A
ENGINE/ENG1 AND 2 FIRE EXTIG
121VU 1WE2 Q41
/BTL2/SQUIB/A
** ON A/C FSN ALL
121VU ENGINE/ENG2/FIRE DET/LOOP A 7WD2 Q39
121VU ENGINE/ENG1/FIRE DET/LOOP B 8WD1 Q38
** ON A/C FSN 101-103, 105-106, 108-150, 155-200
ENGINE/ENG1 AND 2 FIRE EXTIG
121VU 2WE1 Q44
/BTL2/SQUIB/B
ENGINE/ENG1 AND 2 FIRE EXTIG
121VU 2WE2 Q42
/BTL1/SQUIB/B
** ON A/C FSN ALL
4. Procedure
SUBTASK 26-12-00-710-050-A
A. Do this test
ACTION RESULT
1.On the ENG/APU FIRE panel 1WD: On the ENG/APU FIRE panel 1WD:
- push and hold the ENG 1(2) TEST - on the ENG 1(2)/FIRE pushbutton switch,
pushbutton switch. the FIRE legend comes on.
- on the ENG 1(2)/AGENT 1 and AGENT 2
pushbutton switches, the SQUIB and
DISCH legends come on.
On the ENG panel 115VU:
- on the ENG/1(2) FIRE/FAULT annunciator,
the FIRE legend comes on.
After some seconds:
- the continuous repetitive chime operates.
On the F/O and CAPT glareshield panels 130VU
and 131VU:
- the MASTER WARN lights flash.
On the upper ECAM DU:
-
JCP Title: 261200-01-1 © AIRBUS S.A.S. ALL RIGHTS RESERVED. Page 2 of 3
CONFIDENTIAL AND PROPRIETARY DOCUMENT. PRINT DATE: Jun 25/2022
AMM - JAT - A318/A319/A320/A321 REV DATE: May 01/2022
Tail Number - MSN - FSN: CC-AWK - 09328 - 102
26-12-00-710-001-A - Operational Check of Loop/Squib
the ENG 1(2) FIRE warning comes into
view.
On the lower ECAM DU:
- the ENGINE page automatically comes into
view.
2.On the ENG/APU FIRE panel 1WD:
- release the ENG 1(2) TEST pushbutton - all the annunciator lights go off
switch. - the continuous repetitive chime stops
- on the upper ECAM DU, the warning goes
out of view
- on the lower ECAM DU, the ENGINE page
goes out of view.
5. Close-up
SUBTASK 26-12-00-860-051-A
A. Do the EIS stop procedure
Ref. AMM TASK 31-60-00-860-002.
SUBTASK 26-12-00-862-050-A
B. De-energize the aircraft electrical circuits Ref. AMM TASK 24-41-00-862-002.
JCP Title: 261200-01-1 © AIRBUS S.A.S. ALL RIGHTS RESERVED. Page 3 of 3
CONFIDENTIAL AND PROPRIETARY DOCUMENT. PRINT DATE: Jun 25/2022
