DOC AIRBUS | AMM A320FDeactivation of the Maintenance Interphone Jack on the Engine
TASK 23-44-00-040-802-A
Deactivation of the Maintenance Interphone Jack on the Engine
This procedure is for the deactivation of the Maintenance Interphone Jack on the Engine.
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Referenced Information
3. Job Set-up
Subtask 23-44-00-860-060-A
Subtask 23-44-00-040-051-A
Subtask 23-44-00-865-064-A
[Rev.10 from 2021]
2026.04.02 06:12:13 UTC
Deactivation of the Maintenance Interphone Jack on the Engine
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
WARNING:
BE CAREFUL WHEN YOU DO WORK ON THE ENGINE AFTER SHUTDOWN. THE ENGINE CAN STAY HOT FOR A LONG TIME. IF YOU DO NOT OBEY THIS INSTRUCTION, INJURY CAN OCCUR.
ZONE: 210
ZONE: 430
ZONE: 440
ZONE: 450
ZONE: 460
FIN: 4000RJ1 ** ON A/C NOT FOR ALL
FIN: 4000RJ2 ** ON A/C NOT FOR ALL
1. Reason for the JobZONE: 430
ZONE: 440
ZONE: 450
ZONE: 460
FIN: 4000RJ1 ** ON A/C NOT FOR ALL
FIN: 4000RJ2 ** ON A/C NOT FOR ALL
This procedure is for the deactivation of the Maintenance Interphone Jack on the Engine.
NOTE: This deactivation task is not related to an AFM-CDL/MMEL item.
2. Job Set-up InformationA. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | MARKER - INDELIBLE |
| No specific | AR | SAFETY CLIP - CIRCUIT BREAKER |
| No specific | AR | TIE WRAP(S) |
| No specific | AR | WARNING NOTICE(S) |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.05RAB9) | Adhesive Film Tape-- Aluminium Foil - |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 210 | CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD |
| 430 | ENG 1 AIR INTAKE, FAN AND ACCESS GEARBOX |
| 440 | ENG 2 AIR INTAKE, FAN AND ACCESS GEARBOX |
| 450 | ENG 1 THRUST REVERSER & EXHAUST SECTION |
| 460 | ENG 2 THRUST REVERSER & EXHAUST SECTION |
| 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) |
| ESPM 205455 |
Subtask 23-44-00-860-060-A
A. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
(2) In the cockpit, on the center pedestal, on ENG panel 115VU:
(a) Make sure that the ENG/MODE selector switch is in the NORM position.
(b) Make sure that the ENG/MASTER 1(2) control switch was in the OFF position 5 minutes or more before you do this procedure.
(c) Put the WARNING NOTICE(S) in position to tell persons not to operate the ENG/MODE selector switch and the ENG/MASTER 1(2) control switch.
(3) In the cockpit, on the ENG section of maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put the WARNING NOTICE(S) in position to tell persons not to energize the FADEC 1(2).
Subtask 23-44-00-865-063-A (1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
(2) In the cockpit, on the center pedestal, on ENG panel 115VU:
(a) Make sure that the ENG/MODE selector switch is in the NORM position.
(b) Make sure that the ENG/MASTER 1(2) control switch was in the OFF position 5 minutes or more before you do this procedure.
(c) Put the WARNING NOTICE(S) in position to tell persons not to operate the ENG/MODE selector switch and the ENG/MASTER 1(2) control switch.
(3) In the cockpit, on the ENG section of maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put the WARNING NOTICE(S) in position to tell persons not to energize the FADEC 1(2).
B. Open, safety and tag this(these) circuit breaker(s):
4. Procedure| PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| FOR FIN: 101RH (DIRCIDS, 1) | |||
| 49VU | COM/CIDS/DIR ESS/1 | 150RH | G01 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | AIR COND/CIDS/SDF/DIR1 ESS | 15WH | C05 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | COM NAV/CIDS/DIR1 ESS | 150RH | G01 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM NAV/CIDS/DIR NORM/1 | 151RH | M05 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM NAV/CIDS/DIR NORM/1 | 151RH | M06 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM NAV/CIDS/DIR1 NORM | 151RH | M05 |
| ** ON A/C NOT FOR ALL | |||
| 122VU | AIR COND/CIDS/SDF/DIR NORM/1 | 17WH | T17 |
| ** ON A/C NOT FOR ALL | |||
| FOR FIN: 102RH (DIRCIDS, 2) | |||
| 49VU | COM/CIDS/DIR ESS/2 | 157RH | G02 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | COM/CIDS/DIR ESS/1 | 150RH | G01 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | AIR COND/CIDS/SDF/DIR2 ESS | 18WH | C06 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | COM DIR ESS/2 | 157RH | G02 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | COM NAV/CIDS/DIR2 ESS | 157RH | G02 |
| 49VU | COM NAV/CIDS/DIR1 ESS | 150RH | G01 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM NAV/CIDS/DIR NORM/2 | 156RH | M06 |
| 121VU | COM NAV/CIDS/DIR NORM/1 | 151RH | M05 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM NAV/CIDS/DIR NORM/2 | 156RH | M07 |
| 121VU | COM NAV/CIDS/DIR NORM/1 | 151RH | M06 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM NAV/CIDS/DIR2 NORM | 156RH | M06 |
| 121VU | COM NAV/CIDS/DIR1 NORM | 151RH | M05 |
| ** ON A/C NOT FOR ALL | |||
| 122VU | AIR COND/CIDS/SDF/DIR NORM/2 | 14WH | T18 |
Subtask 23-44-00-040-051-A
A. Deactivation of the Maintenance Interphone Jack
(2) Isolate the maintenance interphone jack ESPM 205455:
(a) Temporarily attach the harness with the disconnected electrical wires to the aircraft structure with the TIE WRAP(S).
(4) Make a note to tell persons not to use the deactivated maintenance interphone jack:
(a) Near the deactivated maintenance interphone jack:
5. Close-upCAUTION:
MAKE MATCH MARKS ON ALL THE ELECTRICAL WIRES BEFORE YOU DISCONNECT THEM. INCORRECT CONNECTION OF WIRES WILL CAUSE DAMAGE TO EQUIPMENT.
(1) Make match marks on the components that you disconnect/remove to record their connections/positions. This is important for the subsequent installation procedure.(2) Isolate the maintenance interphone jack ESPM 205455:
- Disconnect the wires at the interphone jack, or
- Disconnect the wires before the next connector jack after the interphone jack, or
- Disconnect the wires of the interphone jack you remove from the connector of all the interphone jacks split.
(a) Temporarily attach the harness with the disconnected electrical wires to the aircraft structure with the TIE WRAP(S).
(4) Make a note to tell persons not to use the deactivated maintenance interphone jack:
(a) Near the deactivated maintenance interphone jack:
- Apply a strip of Adhesive Film Tape-- Aluminium Foil - (Material No.05RAB9) .
- Use the MARKER - INDELIBLE to write on the tape "DO NOT USE MAINTENANCE INTERPHONE JACK".
- Make sure that you apply the adhesive tape on the air inlet or on the fan cowl only.
Subtask 23-44-00-865-064-A
A. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 23-44-00-860-061-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| FOR FIN: 101RH (DIRCIDS, 1) | |||
| 49VU | COM/CIDS/DIR ESS/1 | 150RH | G01 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | AIR COND/CIDS/SDF/DIR1 ESS | 15WH | C05 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | COM NAV/CIDS/DIR1 ESS | 150RH | G01 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM NAV/CIDS/DIR NORM/1 | 151RH | M05 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM NAV/CIDS/DIR NORM/1 | 151RH | M06 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM NAV/CIDS/DIR1 NORM | 151RH | M05 |
| ** ON A/C NOT FOR ALL | |||
| 122VU | AIR COND/CIDS/SDF/DIR NORM/1 | 17WH | T17 |
| ** ON A/C NOT FOR ALL | |||
| FOR FIN: 102RH (DIRCIDS, 2) | |||
| 49VU | COM/CIDS/DIR ESS/2 | 157RH | G02 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | COM/CIDS/DIR ESS/1 | 150RH | G01 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | AIR COND/CIDS/SDF/DIR2 ESS | 18WH | C06 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | COM DIR ESS/2 | 157RH | G02 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | COM NAV/CIDS/DIR2 ESS | 157RH | G02 |
| 49VU | COM NAV/CIDS/DIR1 ESS | 150RH | G01 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM NAV/CIDS/DIR NORM/2 | 156RH | M06 |
| 121VU | COM NAV/CIDS/DIR NORM/1 | 151RH | M05 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM NAV/CIDS/DIR NORM/2 | 156RH | M07 |
| 121VU | COM NAV/CIDS/DIR NORM/1 | 151RH | M06 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM NAV/CIDS/DIR2 NORM | 156RH | M06 |
| 121VU | COM NAV/CIDS/DIR1 NORM | 151RH | M05 |
| ** ON A/C NOT FOR ALL | |||
| 122VU | AIR COND/CIDS/SDF/DIR NORM/2 | 14WH | T18 |
B. Aircraft Maintenance Configuration
(1) Make an entry in the logbook.
(2) Make sure that the work area is clean and clear of tools and other items.
(3) In the cockpit, remove the WARNING NOTICE(S).
(4) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
(1) Make an entry in the logbook.
(2) Make sure that the work area is clean and clear of tools and other items.
(3) In the cockpit, remove the WARNING NOTICE(S).
(4) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).