W DOC AIRBUS | AMM A320F

Operational Test of the Engine Fire and Overheat Detection with the Centralized Fault Display System (CFDS)


TASK 26-12-00-710-002-B
Operational Test of the Engine Fire and Overheat Detection with the Centralized Fault Display System (CFDS)


1. Reason for the Job
Self explanatory
2. Job Set-up Information
 A. 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 31-32-00-860-005-A
Procedure to Get Access to the SYSTEM REPORT/TEST FIRE PROT Page
3. Job Set-up
Subtask 26-12-00-861-057-A ** ON A/C NOT FOR ALL
A. Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).

Subtask 26-12-00-869-054-A ** ON A/C NOT FOR ALL
B. On the ENG panel 115VU, make sure that ENG/MASTER 1 and 2 control switches are set to OFF.
Subtask 26-12-00-865-065-A ** ON A/C NOT FOR ALL
C. Make sure that this(these) circuit breaker(s) is(are) closed:
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VUENGINE/2/FIRE DET/LOOP B8WD2A07
49VUENGINE/1/FIRE DET/LOOP A7WD1A06
** ON A/C NOT FOR ALL
121VUENGINE/ENG1 AND 2 FIRE EXTIG/BTL1/SQUIB/A1WE1Q43
121VUENGINE/ENG1 AND 2 FIRE EXTIG/BTL2/SQUIB/A1WE2Q41
** ON A/C NOT FOR ALL
121VUENGINE/ENG2/FIRE DET/LOOP A7WD2Q39
121VUENGINE/ENG1/FIRE DET/LOOP B8WD1Q38
** ON A/C NOT FOR ALL
121VUENGINE/ENG1 AND 2 FIRE EXTIG/BTL1/SQUIB/B2WE1Q44
121VUENGINE/ENG1 AND 2 FIRE EXTIG/BTL2/SQUIB/B2WE2Q42
** ON A/C NOT FOR ALL
121VUENGINE/ENG1 AND 2 FIRE EXTIG/BTL2/SQUIB/B2WE1Q44
121VUENGINE/ENG1 AND 2 FIRE EXTIG/BTL1/SQUIB/B2WE2Q42
** ON A/C NOT FOR ALL
121VUENGINE/ENG1 AND 2 FIRE EXTIG/BTL2/SQUIB/B2WE1Q43
121VUENGINE/ENG1 AND 2 FIRE EXTIG/BTL1/SQUIB/A1WE1Q42
121VUENGINE/ENG1 AND 2 FIRE EXTIG/BTL1/SQUIB/B2WE2Q41
121VUENGINE/ENG1 AND 2 FIRE EXTIG/BTL2/SQUIB/A1WE2Q40
4. Procedure
Subtask 26-12-00-710-054-A ** ON A/C NOT FOR ALL
A. Operational Test of the Engine Fire and Overheat Detection with the CFDS
   (1) On the Multipurpose Control and Display Unit (MCDU), get the SYSTEM REPORT/TEST/FIRE PROT page (Ref. AMM TASK 31-32-00-860-005).
   (2) Do this test:
ACTION
RESULT
1.On the MCDU:
On the MCDU:
  • Push the line key adjacent to the FDU 1(2) indication.
  • The FDU 1(2) page comes into view.
  • Push the line key adjacent to the TEST indication.
On the FDU 1(2) page:
  • The TEST WAIT message comes into view for 90 seconds and goes out of view. Then, these messages come into view (P/N given for example only):

    TEST OK
    P/N 7304 01 02
    END OF TEST
NOTE: You can ignore all the other indications.
5. Close-up
Subtask 26-12-00-869-055-A ** ON A/C NOT FOR ALL
A. Put the aircraft back to its initial configuration.
   (1) On the MCDU, push the line select key adjacent to the RETURN indication until the CFDS menu page comes into view.
Subtask 26-12-00-862-055-A ** ON A/C NOT FOR ALL
B. De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
[Rev.10 from 2021] 2026.03.31 23:42:19 UTC