W DOC AIRBUS | AMM A320F

Update of the Aircraft Tail Number in the Wireless Ground Link-Quick Access Recorder (WGL-QAR)

TASK 31-33-00-710-018-A
Update of the Aircraft Tail Number in the Wireless Ground Link-Quick Access Recorder (WGL-QAR)

ZONE: 120
FIN: 3TU ** ON A/C NOT FOR ALL
1. Reason for the Job
Self explanatory
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
1
ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE
 B. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
120
AVIONICS COMPARTMENT
824
 C. 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 52-41-00-010-002-A
Open the Avionics Compartment Doors for Access
TASK 52-41-00-410-002-A
Close the Avionics Compartment Doors after Access
TASK 31-33-00-00
DIGITAL FLIGHT DATA RECORDING SYSTEM (DFDRS) - INTERCONNECTION - DESCRIPTION AND OPERATION
3. Job Set-up
Subtask 31-33-00-861-067-A ** ON A/C NOT FOR ALL
A. Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
Subtask 31-33-00-010-063-C ** ON A/C NOT FOR ALL
B. Get Access
   (1) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position at access door 824.
   (2) Open access door 824 (Ref. AMM TASK 52-41-00-010-002).
   (3) For the location of the WGL-QAR, refer to paragraph Component Location (Ref. AMM D/O 31-33-00-00).
Subtask 31-33-00-865-082-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
121VURCDR/ACCLRM9TUK18
121VUAIDS & RCDR/QAR14TUK17
121VUAIDS & RCDR/FDIMU5TVK15
4. Procedure
Subtask 31-33-00-710-087-C ** ON A/C NOT FOR ALL
A. Update of the Aircraft Tail Number in the WGL-QAR
ACTION
RESULT
On the WGL-QAR Front Panel:
On the WGL-QAR Display:
  • Push the MODE button.
  • SYSTEM STATE comes into view.
  • Push the + button again and again until the UNIT INFO message comes into view.
  • UNIT INFO comes into view.
  • Push the SEL button.
  • DATE!TIME comes into view.
  • Push the + button again and again until the UPDATE TAIL NUMBER message comes into view.
  • UPDATE
    TAIL NUMBER comes into view.
  • Push the SEL button to view the current tail number.
  • _ comes into view below the first character.
  • Push the + or - button to go to the character that must be changed.
NOTE: The Tail Number field is empty. In this condition, the underscore flashes in the first position.
  • Push the SEL button to change the character.
  • A block cursor flashes on the character.
  • Push the + or - buttons to change the character that flashes.
  • The corrected character flashes.
  • Push the SEL button to update the character.
  • The character that follows flashes.
  • Do the last 2 steps again and again until the input of aircraft tail number is completed.
  • The position that follows the aircraft tail number flashes.
  • Select the <SPACE> character. Push the SEL button.
NOTE: All characters that follow the <SPACE> character get erased.
  • + CONFIRM UPDATE
    - DISCARD UPDATE comes into view.
  • Push the + button. This will validate the tail number change.
  • UNIT NOW
    WILL REBOOT.
NOTE: The reboot procedure is completed in approximately 5 minutes. After reboot, the WGL-QAR is prepared for operation with the new tail number.
If you want to discard the changes, after reboot push the - button.
5. Close-up
Subtask 31-33-00-410-063-C ** ON A/C NOT FOR ALL
A. Close Access
   (1) Make sure that the work area is clean and clear of tools and other items.
   (2) Close access door 824 (Ref. AMM TASK 52-41-00-410-002).
   (3) Remove the access platform(s).
Subtask 31-33-00-862-067-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] 2026.04.01 08:31:47 UTC
"Aviabrain" 2025