DOC AIRBUS | AMM A320FDeactivation of the Door Locking System Selector on the Back Up Panel
TASK 52-51-00-040-008-A
Deactivation of the Door Locking System Selector on the Back Up Panel
MMEL 52-01-03-34A
OFF FUNCTION OF THE LKG SYS ON THE CKPT DOOR BK UP OVERHEAD PANEL
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Referenced Information
3. Job Set-up
Subtask 52-51-00-860-088-A
Subtask 52-51-00-040-059-A
Subtask 52-51-00-860-089-A
[Rev.10 from 2021]
2026.04.02 06:28:22 UTC
Deactivation of the Door Locking System Selector on the Back Up Panel
Task Summary
1. Reason for the Job| Access | Test | Specific Tools | Mhr | E/T | Nb Men |
|---|---|---|---|---|---|
| NO | NO | NO | 0.2 | 0.2 | 1 |
MMEL 52-01-03-34A
OFF FUNCTION OF THE LKG SYS ON THE CKPT DOOR BK UP OVERHEAD PANEL
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | AR | SAFETY CLIP - CIRCUIT BREAKER |
| 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 24-42-00-862-001-A | De-energize the Ground Service Network Supplied from the External Power |
Subtask 52-51-00-860-088-A
A. Aircraft Maintenance Configuration
(1) Make sure that the aircraft electrical circuits are energized (Ref. AMM TASK 24-41-00-861-002).
(2) Make sure that access to the cockpit is available.
Subtask 52-51-00-865-075-A ** ON A/C NOT FOR ALL (1) Make sure that the aircraft electrical circuits are energized (Ref. AMM TASK 24-41-00-861-002).
(2) Make sure that access to the cockpit is available.
B. Make sure that this(these) circuit breaker(s) is(are) closed:
4. Procedure| PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 122VU | DOORS/PAX/MONG | 1MQ | T13 |
Subtask 52-51-00-040-059-A
A. Do the deactivation of the back-up control system
Subtask 52-51-00-865-089-A ** ON A/C NOT FOR ALL NOTE: For maintenance purposes only, the normal and back-up systems can be deactivated when you do the related maintenance procedure.
B. Open, safety and tag this(these) circuit breaker(s):
5. Close-up| PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 122VU | DOORS/PAX/MONG | 1MQ | T13 |
| 122VU | CKPT/OVRD SYS/SPLY | 4MQ | S10 |
Subtask 52-51-00-860-089-A
A. Put the aircraft back to the serviceable condition.
(1) Make an entry into the aircraft technical log that the Back Up Control System is deactivated.
(2) Make sure that the work area is clean and clear of tools and other items.
(3) De-energize the ground service network
(Ref. AMM TASK 24-42-00-862-001).
(1) Make an entry into the aircraft technical log that the Back Up Control System is deactivated.
(2) Make sure that the work area is clean and clear of tools and other items.
(3) De-energize the ground service network
(Ref. AMM TASK 24-42-00-862-001).