Operational Check of Loop/Squib

TASK 26-12-00-710-001-A
Operational Check of Loop/Squib

ZONE: 210

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
TASK 24-41-00-861-002-A	Energize the Aircraft Electrical Circuits from the External Power
TASK 24-41-00-861-002-A-01	Energize the Aircraft Electrical Circuits from the APU
TASK 24-41-00-861-002-A-02	Energize the Aircraft Electrical Circuits from Engine 1(2)
TASK 24-41-00-862-002-A	De-energize the Aircraft Electrical Circuits Supplied from the External Power
TASK 24-41-00-862-002-A-01	De-energize the Aircraft Electrical Circuits Supplied from the APU
TASK 24-41-00-862-002-A-02	De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2)
TASK 31-60-00-860-001-A	EIS Start Procedure
TASK 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
** ON A/C ALL
49VU	ENGINE/2/FIRE DET/LOOP B	8WD2	A07
49VU	ENGINE/1/FIRE DET/LOOP A	7WD1	A06
** ON A/C NOT FOR ALL
121VU	ENGINE/ENG1 AND 2 FIRE EXTIG/BTL1/SQUIB/B	2WE1	Q44
121VU	ENGINE/ENG1 AND 2 FIRE EXTIG/BTL2/SQUIB/B	2WE2	Q42
** ON A/C NOT FOR ALL
121VU	ENGINE/ENG1 AND 2 FIRE EXTIG/BTL1/SQUIB/A	1WE1	Q43
121VU	ENGINE/ENG1 AND 2 FIRE EXTIG/BTL2/SQUIB/A	1WE2	Q41
** ON A/C ALL
121VU	ENGINE/ENG2/FIRE DET/LOOP A	7WD2	Q39
121VU	ENGINE/ENG1/FIRE DET/LOOP B	8WD1	Q38
** ON A/C NOT FOR ALL
121VU	ENGINE/ENG1 AND 2 FIRE EXTIG/BTL2/SQUIB/B	2WE1	Q44
121VU	ENGINE/ENG1 AND 2 FIRE EXTIG/BTL1/SQUIB/B	2WE2	Q42
** ON A/C NOT FOR ALL
121VU	ENGINE/ENG1 AND 2 FIRE EXTIG/BTL2/SQUIB/B	2WE1	Q43
121VU	ENGINE/ENG1 AND 2 FIRE EXTIG/BTL1/SQUIB/A	1WE1	Q42
121VU	ENGINE/ENG1 AND 2 FIRE EXTIG/BTL1/SQUIB/B	2WE2	Q41
121VU	ENGINE/ENG1 AND 2 FIRE EXTIG/BTL2/SQUIB/A	1WE2	Q40

4. Procedure
Subtask 26-12-00-710-050-A

A. Do this test

ACTION	RESULT
1.On the ENG/APU FIRE panel 1WD: push and hold the ENG 1(2) TEST pushbutton switch.	On the ENG/APU FIRE panel 1WD: on the ENG 1(2)/FIRE 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: 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 switch.	all the annunciator lights go off 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).

[Rev.10 from 2021] 2026.03.31 23:42:17 UTC