W DOC AIRBUS | AMM A320F

Test of the Angle of Attack (AOA) Warning


TASK 34-10-00-710-007-A
Test of the Angle of Attack (AOA) Warning


ZONE: 210
1. Reason for the Job
Self explanatory
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
AR
ACCESS PLATFORM 1M(3 FT)
No specific
AR
SAFETY CLIP - CIRCUIT BREAKER
 B. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
210
CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD
822
 C. Referenced Information
REFERENCE
DESIGNATION
TASK 10-11-00-555-013-A
Installation of the Aircraft Protection Equipment
TASK 10-11-00-555-014-A
Removal of the Aircraft Protection Equipment
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 27-50-00-866-009-A
Retraction of the Flaps on the Ground
TASK 27-50-00-866-009-A-01
Retraction of the Flaps/Slats on the Ground
TASK 31-32-00-860-010-A
Procedure to Get Access to the SYSTEM REPORT/TEST NAV 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
CAUTION: MAKE SURE THAT THE AOA SENSOR CAN MOVE FREELY DURING THE TEST (IT WILL MOVE FROM THE STANDBY POSITION TO THE TEST POSITION).
Subtask 34-10-00-860-065-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
   (1) Remove the AOA sensor protections, if installed (Ref. AMM TASK 10-11-00-555-014).
   (2) Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).
   (3) On the overhead panel:
  • On flight control panels 23VU and 24VU, make sure that the FAC, ELAC and SEC pushbutton switches are not pushed. The OFF legends are on.
  • On panel 20VU, on the ADIRS CDU, make sure that the three OFF/NAV/ATT selector switches are set to OFF.
   (4) Fully retract the flaps (Ref. AMM TASK 27-50-00-866-009).
NOTE: This test is for the system 1. For the other system(s), use the indications between the parentheses.
   (5) Do the EIS start procedure (PFD only) (Ref. AMM TASK 31-60-00-860-001).
   (6) On the Multipurpose Control and Display Unit (MCDU), get the SYSTEM REPORT/TEST/NAV page
(Ref. AMM TASK 31-32-00-860-010).
Subtask 34-10-00-860-065-C ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
   (1) Remove the AOA sensor protections, if installed (Ref. AMM TASK 10-11-00-555-014).
   (2) Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).
   (3) On the overhead panel:
  • On flight control panels 23VU and 24VU, make sure that the FAC, ELAC and SEC pushbutton switches are not pushed. The OFF legends are on.
  • On ADIRS MSU panel 41VU, make sure that the three OFF/NAV/ATT selector switches are set to OFF.
   (4) Fully retract the flaps (Ref. AMM TASK 27-50-00-866-009).
NOTE: This test is for the system 1. For the other system(s), use the indications between the parentheses.
   (5) Do the EIS start procedure (PFD only) (Ref. AMM TASK 31-60-00-860-001).
   (6) On the MCDU, get the SYSTEM REPORT/TEST/NAV page
(Ref. AMM TASK 31-32-00-860-010).
Subtask 34-10-00-010-064-A
B. Get Access
   (1) Put the ACCESS PLATFORM 1M(3 FT) in position below access door 822.
   (2) Open access door 822.
   (3) On battery power-center 105VU:
  • Loosen the two screws and remove the protective cover.
Subtask 34-10-00-865-064-A
C. Make sure that this(these) circuit breaker(s) is(are) closed:
PANELDESIGNATIONFINLOCATION
** ON A/C ALL
49VUL/G/LGCIU/SYS1/NORM1GAC09
49VUNAV PROBES/ADIRU 1/AND AOA 1/26VAC5FP1F07
49VUNAV PROBES/ADIRU1/115VAC4FP1F06
105VUADIRS/ADIRU1/28VDC6FP1C02
** ON A/C NOT FOR ALL
121VUADIRS/ADIRU/2PWR/SHED10FPN10
** ON A/C ALL
121VUADIRS/ADIRU/3PWR/SWTG9FPN09
121VUADIRS/ADIRU/2/26VAC AND AOA5FP2N08
121VUADIRS/ADIRU/3/26VAC AND AOA5FP3N07
121VUADIRS/ADIRU/2/115VAC4FP2N06
121VUADIRS/ADIRU/3/115VAC4FP3N05
121VUADIRS/ADIRU/2/28VDC6FP2N04
121VUADIRS/ADIRU/3/28VDC6FP3N03
121VUEIS/HORN/SPLY2WCP09
121VUHYDRAULIC/LGCIU/SYS22GAQ35
121VUHYDRAULIC/LGCIU/SYS1/GRND SPLY52GAQ34
** ON A/C NOT FOR ALL
121VUADIRS/2PWR/SHED &/AOA2 MON10FPN10
Subtask 34-10-00-865-076-A
D. Open, safety and tag this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VUAUTO FLT/FAC1/28VDC5CC1B04
** ON A/C NOT FOR ALL
49VUAUTO FLT/FAC1/28VDC5CC1H10
** ON A/C ALL
121VUAUTO FLT/FAC2/28VDC5CC2M19
4. Procedure
Subtask 34-10-00-710-062-J ** ON A/C NOT FOR ALL
A. Test of the Angle of Attack Warning
ACTION
RESULT
1.On the ADIRS CDU:
  • Set the three OFF/NAV/ATT selector switches to NAV.
On the CAPT and F/O PFDs:
  • Make sure that the CAS, ALT, V/S data are shown.
  • Make sure that the attitude data is shown for 40 seconds after the start up.
2.On MCDU1 or MCDU2, on the NAV page:
On MCDU1 or MCDU2:
  • Push the line key adjacent to the ADR1 (ADR2) (ADR3) indication.
  • The ADIRS ADR1 (ADR2) (ADR3) page comes into view.
  • Push the line key adjacent to the OUTPUT TESTS indication.
  • The OUTPUT TESTS page comes into view.
  • Push the line key adjacent to the AOA SENSOR TEST indication.
  • The AOA SENSOR TEST page comes into view with these indications:
    * AOA SENSOR COMMANDED TO FIXED POSITION
    * MAKE SURE THAT THE AURAL STALL WARNING IS GENERATED.
    On the left (right) side of the fuselage, in zone 231 (232) (127), the angle of attack sensor 3FP1 (3FP2) (3FP3) moves to the test position.
    On panels 130VU and 131VU, the MASTER WARN lights flash.
    You can hear the cricket aural warning and the STALL voice.
  • Push the line key adjacent to the YES indication.
On the MCDU:
  • The TEST OK indication comes into view.
  • Push the line key adjacent to the RETURN indication until the CFDS menu page comes into view.
The test procedure stops.
The MASTER WARN lights go off.
The cricket aural warning and the STALL voice stop.
On the MCDU:
  • The CFDS menu page comes into view.
Subtask 34-10-00-710-062-O ** ON A/C NOT FOR ALL
A. Test of the Angle of Attack Warning
ACTION
RESULT
1.On ADIRS MSU panel 41VU:
  • Set the three OFF/NAV/ATT selector switches to NAV.
On the CAPT and F/O PFDs:
  • Make sure that the CAS, ALT, V/S data are shown.
  • Make sure that the attitude data is shown for 40 seconds after the start up.
2.On MCDU1 or MCDU2, on the NAV page:
On MCDU1 or MCDU2:
  • Push the line key adjacent to the ADR1 (ADR2) (ADR3) indication.
  • The ADIRS ADR1 (ADR2) (ADR3) page comes into view.
  • Push the line key adjacent to the OUTPUT TESTS indication.
  • The OUTPUT TESTS page comes into view.
  • Push the line key adjacent to the AOA SENSOR TEST indication.
  • The AOA SENSOR TEST page comes into view with these indications:
    * AOA SENSOR COMMANDED TO FIXED POSITION
    * MAKE SURE THAT THE AURAL STALL WARNING IS GENERATED.
    On the left (right) side of the fuselage, in zone 231 (232) (127), the angle of attack sensor 3FP1 (3FP2) (3FP3) moves to the test position.
    On panels 130VU and 131VU, the MASTER WARN lights flash.
    You can hear the cricket aural warning and the STALL voice.
  • Push the line key adjacent to the YES indication.
On the MCDU:
  • The TEST OK indication comes into view.
  • Push the line key adjacent to the RETURN indication until the CFDS menu page comes into view.
The test procedure stops.
The MASTER WARN lights go off.
The cricket aural warning and the STALL voice stop.
On the MCDU:
  • The CFDS menu page comes into view.
Subtask 34-10-00-710-062-P ** ON A/C NOT FOR ALL
A. Test of the Angle of Attack Warning
ACTION
RESULT
1.On ADIRS MSU panel 41VU:
  • Set the three OFF/NAV/ATT selector switches to NAV.
On the CAPT and F/O PFDs:
  • Make sure that the CAS, ALT, V/S data are shown.
  • Make sure that the attitude data is shown for 40 seconds after the start up.
2.On MCDU1 or MCDU2, on the NAV page:
On MCDU1 or MCDU2:
  • Push the line key adjacent to the ADR1 (ADR2) (ADR3) indication.
  • The ADIRS ADR1 (ADR2) (ADR3) page comes into view.
  • Push the line key adjacent to the OUTPUT TESTS indication.
  • The OUTPUT TESTS page comes into view.
  • Push the line key adjacent to the AOA SENSOR TEST indication.
  • The AOA SENSOR TEST page comes into view with these indications:
    * AOA SENSOR COMMANDED TO FIXED POSITION
    * MAKE SURE THAT THE AURAL STALL WARNING IS GENERATED.
    On the left (right) side of the fuselage, in zone 231 (232) (127), the angle of attack sensor 3FP1 (3FP2) (3FP3) moves to the test position.
    On panels 130VU and 131VU, the MASTER WARN lights flash.
    You can hear the cricket aural warning and the STALL voice.
  • Push the line key adjacent to the YES indication.
On the MCDU:
  • The TEST OK indication comes into view.
  • Push the line key adjacent to the RETURN indication until the CFDS menu page comes into view.
The test procedure stops.
The MASTER WARN lights go off.
The cricket aural warning and the STALL voice stop.
On the MCDU:
  • The CFDS menu page comes into view.
  • If there is no STALL voice at the end of the test for ADR1, do the test for ADR2 or ADR3. Then, do the test for ADR1 again to make sure that the STALL voice operates correctly.
NOTE: It is possible that there is no STALL voice at the end of the test for ADR1 because the FWS reset was done with the ADIRU set to NAV.

Subtask 34-10-00-710-062-Q
A. Test of the Angle of Attack Warning
ACTION
RESULT
1.On the ADIRS CDU:
  • Set the three OFF/NAV/ATT selector switches to NAV.
On the CAPT and F/O PFDs:
  • Make sure that the CAS, ALT, V/S data are shown.
  • Make sure that the attitude data is shown for 40 seconds after the start up.
2.On MCDU1 or MCDU2, on the NAV page:
On MCDU1 or MCDU2:
  • Push the line key adjacent to the ADR1 (ADR2) (ADR3) indication.
  • The ADIRS ADR1 (ADR2) (ADR3) page comes into view.
  • Push the line key adjacent to the OUTPUT TESTS indication.
  • The OUTPUT TESTS page comes into view.
  • Push the line key adjacent to the AOA SENSOR TEST indication.
  • The AOA SENSOR TEST page comes into view with these indications:
    * AOA SENSOR COMMANDED TO FIXED POSITION
    * MAKE SURE THAT THE AURAL STALL WARNING IS GENERATED.
    On the left (right) side of the fuselage, in zone 231 (232) (127), the angle of attack sensor 3FP1 (3FP2) (3FP3) moves to the test position.
    On panels 130VU and 131VU, the MASTER WARN lights flash.
    You can hear the cricket aural warning and the STALL voice.
  • Push the line key adjacent to the YES indication.
On the MCDU:
  • The TEST OK indication comes into view.
  • Push the line key adjacent to the RETURN indication until the CFDS menu page comes into view.
The test procedure stops.
The MASTER WARN lights go off.
The cricket aural warning and the STALL voice stop.
On the MCDU:
  • The CFDS menu page comes into view.
  • If there is no STALL voice at the end of the test for ADR1, do the test for ADR2 or ADR3. Then, do the test for ADR1 again to make sure that the STALL voice operates correctly.
NOTE: It is possible that there is no STALL voice at the end of the test for ADR1 because the FWS reset was done with the ADIRU set to NAV.

5. Close-up
Subtask 34-10-00-865-088-A
A. Table of the circuit breakers used in this procedure:
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
121VUT/TISS2004SGK07
Subtask 34-10-00-860-082-A ** ON A/C NOT FOR ALL
B. Reset of the T/TISS
  • Open the circuit breaker (1004SG or 2004SG) and wait approximately 10 seconds.
  • Close the circuit breaker (1004SG or 2004SG).
Subtask 34-10-00-860-066-A ** ON A/C NOT FOR ALL
C. Put the aircraft back to its initial configuration.
   (1) On the ADIRS CDU, set the three OFF/NAV/ATT selector switches to OFF.
   (2) On the overhead panel:
  • On flight control panels 23VU and 24VU, make sure that the FAC, ELAC and SEC pushbutton switches are pushed. The OFF legends are off.
   (3) Do the EIS stop procedure
(Ref. AMM TASK 31-60-00-860-002).
   (4) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
   (5) Install the AOA sensor protections, if necessary (Ref. AMM TASK 10-11-00-555-013).
   (6) Remove the access platform(s).
Subtask 34-10-00-860-066-B ** ON A/C NOT FOR ALL
C. Put the aircraft back to its initial configuration.
   (1) On ADIRS MSU panel 41VU, set the three OFF/NAV/ATT selector switches to OFF.
   (2) On the overhead panel:
  • On flight control panels 23VU and 24VU, make sure that the FAC, ELAC and SEC pushbutton switches are pushed. The OFF legends are off.
   (3) Do the EIS stop procedure
(Ref. AMM TASK 31-60-00-860-002).
   (4) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
   (5) Install the AOA sensor protections, if necessary (Ref. AMM TASK 10-11-00-555-013).
   (6) Remove the access platform(s).
Subtask 34-10-00-865-077-A
D. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VUAUTO FLT/FAC1/28VDC5CC1B04
** ON A/C NOT FOR ALL
49VUAUTO FLT/FAC1/28VDC5CC1H10
** ON A/C ALL
121VUAUTO FLT/FAC2/28VDC5CC2M19
Subtask 34-10-00-410-064-A
E. Close Access
   (1) Install the protective cover on battery power-center 105VU.
   (2) Tighten the two screws.
   (3) Close access door 822.
   (4) Remove the access platform(s).
[Rev.10 from 2021] 2026.04.01 00:58:07 UTC