W DOC AIRBUS | AMM A320F

Operational Test of the Avionics Smoke Detection

TASK 26-15-00-710-001-A
Operational Test of the Avionics Smoke Detection

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 31-32-00-860-002-A
Procedure to Get Access to the SYSTEM REPORT/TEST/AIR COND Page
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 26-15-00-865-052-A
A. Make sure that this(these) circuit breaker(s) is(are) closed:
PANELDESIGNATIONFINLOCATION
** ON A/C ALL
49VUAIR COND/AVNCS VENT/CTL6HQD06
49VUAIR COND/AVNCS VENT/CTL5HQD05
122VUAIR COND/AVNCS/VENT/MONG3HQY17
** ON A/C NOT FOR ALL
123VUAVNCS VENT/EXTC/FAN2HQAE02
** ON A/C ALL
123VUAVNCS VENT/BLOWER/FAN1HQAD10
** ON A/C NOT FOR ALL
123VUAVNCS VENT/EXTC/FAN2HQAC04
Subtask 26-15-00-861-051-A
B. Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
NOTE: The energization of the aircraft electrical circuits starts a full test of the ventilation system. The test continues for 2 minutes approximately.
Subtask 26-15-00-860-050-A ** ON A/C NOT FOR ALL
C. Aircraft Maintenance Configuration
   (1) On the VENTILATION section of panel 22VU:
  • Make sure that the BLOWER and the EXTRACT pushbutton switches are in the AUTO configuration (pushed, with the FAULT and OVRD legends off).
   (2) Do the EIS start procedure (upper ECAM DU and lower ECAM DU only)
(Ref. AMM TASK 31-60-00-860-001).
   (3) On the ECAM control panel, push the PRESS pushbutton key.
   (4) On the lower ECAM display unit:
  • The PRESS page comes into view and shows the skin air-inlet (INLET) and skin air-outlet (EXTRACT) valves in the open position (if the outside air temperature is or equal to 12 deg.C (53.60 deg.F).
NOTE: If the outside air temperature is less than 9 deg.C (48.20 deg.F), the skin air-inlet and skin air-outlet valves are closed.
Subtask 26-15-00-860-050-B ** ON A/C NOT FOR ALL
C. Aircraft Maintenance Configuration
   (1) On the VENTILATION section of panel 22VU:
  • Make sure that the BLOWER and the EXTRACT pushbutton switches are in the AUTO configuration (pushed, with the FAULT and OVRD legends off).
   (2) Do the EIS start procedure (upper ECAM DU and lower ECAM DU only)
(Ref. AMM TASK 31-60-00-860-001).
   (3) On the ECAM control panel, push the PRESS pushbutton key.
   (4) On the lower ECAM display unit:
  • The PRESS page comes into view and shows the skin air-inlet (INLET) and skin air-outlet (OUTLET) valves in the open position (if the outside air temperature is more than or equal to 12 deg.C (53.60 deg.F).
NOTE: If the outside air temperature is less than 9 deg.C (48.20 deg.F), the skin air-inlet and skin air-outlet valves are closed.
4. Procedure
Subtask 26-15-00-710-050-A
A. Operational Test of the Avionics Equipment Ventilation from the MCDU
ACTION
RESULT
1.On one MCDU, select the SYSTEM REPORT/TEST AIR COND menu page (Ref. AMM TASK 31-32-00-860-002).

2.On one MCDU, on the AIR COND menu page, push the line key adjacent to the AEVC indication.
  • The AEVC page comes into view.
3.Push the line key adjacent to the TEST indication.
On the AEVC/TEST page:
  • The TEST WAIT indication comes into view.
  • The blower and extract fans stop.
On the VENTILATION section of panel 22VU:
  • The FAULT legends of the BLOWER and EXTRACT pushbutton switches come on.
On the ELEC section of panel 21VU:
  • The SMOKE legend of GEN 1 LINE pushbutton switch comes on.
After approximately five seconds:
  • The blower and extract fans start.
On the VENTILATION section of panel 22VU:
  • The FAULT legends of the BLOWER and EXTRACT pushbutton switches go off.
On the ELEC section of panel 21VU:
  • The SMOKE legend of GEN 1 LINE pushbutton switch goes off.
On the PRESS page of the lower ECAM DU:
  • The skin air-inlet and skin air-outlet valves are open.
NOTE: When you push the line key adjacent to the TEST indication, a full test of the ventilation system will start.
Subtask 26-15-00-865-055-A
B. Table of the circuit breakers used in this procedure:
PANELDESIGNATIONFINLOCATION
** ON A/C ALL
49VUFWS/FWC1/SPLY3WWF01
121VUEIS/FWC2/SPLY2WWQ07
Subtask 26-15-00-710-057-A
C. Reset of the FWC1 and FWC2
NOTE: Reset of the FWC will clear the latched condition of the AVIONICS SMOKE ECAM warning. Then, no unwanted LAND ASAP message will show.
NOTE: Open the circuit breakers for some seconds before you close them.
   (1) Open this(these) circuit breaker(s):
     (a) 2WW
     (b) 3WW
   (2) Close this(these) circuit breaker(s):
     (a) 2WW
     (b) 3WW
5. Close-up
Subtask 26-15-00-860-051-A
A. Put the aircraft back to its initial configuration.
   (1) Do the EIS stop procedure
(Ref. AMM TASK 31-60-00-860-002).
   (2) On the MCDU, push the line select key adjacent to the RETURN indication until the CFDS menu page comes into view.
Subtask 26-15-00-862-051-A
B. De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
[Rev.10 from 2021] 2026.03.31 23:43:43 UTC
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