DOC AIRBUS | TSM A320FThe SQUIB Legends of the ENG 1 and ENG 2/AGENT 2 Pushbutton Switches do not Come on
TASK 26-21-00-810-806-A
The SQUIB Legends of the ENG 1 and ENG 2/AGENT 2 Pushbutton Switches do not Come on
1. Possible Causes
A. Referenced Information
3. Fault Confirmation
Subtask 26-21-00-710-060-A
Subtask 26-21-00-810-055-A ** ON A/C NOT FOR ALL
[Rev.8 from Aug 2018]
2026.04.04 04:27:23 UTC
The SQUIB Legends of the ENG 1 and ENG 2/AGENT 2 Pushbutton Switches do not Come on
1. Possible Causes
- ENG/APU FIRE PNL [1WD]
- C/B-ENGINE/ENG1 AND 2 FIRE EXTIG/BTL2/SQUIB/A [1WE2]
- C/B-ENGINE/ENG1 AND 2 FIRE EXTIG/BTL2/SQUIB/B [2WE2]
- C/B-ENGINE/ENG1 AND 2 FIRE EXTIG/BTL2/SQUIB/B [2WE1]
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 |
| AMM 26-12-12-400-001 | Installation of the ENG/APU Fire Panel |
Subtask 26-21-00-710-060-A
A. Test
(1) Do the operational test of the engine fire and overheat detection (loop/squib) AMM 26-12-00-710-001.
4. Fault Isolation(1) Do the operational test of the engine fire and overheat detection (loop/squib) AMM 26-12-00-710-001.
Subtask 26-21-00-810-055-A ** ON A/C NOT FOR ALL
A. If the SQUIB legends of the ENG 1 and ENG 2/AGENT 2 pushbutton switches do not come on during the fire test:
Subtask 26-21-00-810-055-B ** ON A/C NOT FOR ALL - replace the ENG/APU FIRE PNL [1WD] AMM 26-12-12-000-001 and AMM 26-12-12-400-001.
- replace the C/B-ENGINE/ENG1 AND 2 FIRE EXTIG/BTL2/SQUIB/A [1WE2] .
- replace the C/B-ENGINE/ENG1 AND 2 FIRE EXTIG/BTL2/SQUIB/B [2WE2] .
A. If the SQUIB legends of the ENG 1 and ENG 2/AGENT 2 pushbutton switches do not come on during the fire test:
Subtask 26-21-00-710-061-A - Replace ENG/APU FIRE PNL [1WD] AMM 26-12-12-000-001 and AMM 26-12-12-400-001.
- Replace C/B-ENGINE/ENG1 AND 2 FIRE EXTIG/BTL2/SQUIB/A [1WE2] .
- Replace C/B-ENGINE/ENG1 AND 2 FIRE EXTIG/BTL2/SQUIB/B [2WE1] .
B. Do the test given in Para. 3.