DOC AIRBUS | AMM A320FRemoval of the On-Board Replaceable Module
TASK 23-73-21-000-001-A
Removal of the On-Board Replaceable Module
Self Explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Referenced Information
3. Job Set-up
Subtask 23-73-21-861-050-A ** ON A/C NOT FOR ALL Subtask 23-73-21-865-051-A ** ON A/C NOT FOR ALL
Subtask 23-73-21-020-050-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.03.31 23:18:04 UTC
Removal of the On-Board Replaceable Module
FIN: 116RH ** ON A/C NOT FOR ALL
1. Reason for the JobSelf Explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | PIN - NON METALLIC |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 20-15-00-910-001-A | Handling Precautions for Electrostatic Discharge Sensitive Devices |
| 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) |
On-Board Replaceable ModuleSubtask 23-73-21-861-050-A ** ON A/C NOT FOR ALL Subtask 23-73-21-865-051-A ** ON A/C NOT FOR ALL
B. Open, safety and tag these circuit breakers in this sequence:
4. Procedure| PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM/CIDS/DIR 2/BAT | 146RH | P14 |
| 121VU | COM/CIDS/DIR 1/BAT | 147RH | P13 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | COM NAV/CIDS/DIR1 ESS | 150RH | G01 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | COM/CIDS/DIR ESS/1 | 150RH | G01 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | COM NAV/CIDS/DIR2 ESS | 157RH | G02 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | COM/CIDS/DIR ESS/2 | 157RH | G02 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | COM DIR ESS/2 | 157RH | G02 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM NAV/CIDS/DIR1 NORM | 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/DIR NORM/1 | 151RH | M05 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM NAV/CIDS/DIR2 NORM | 156RH | M06 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM NAV/CIDS/DIR NORM/2 | 156RH | M07 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM NAV/CIDS/DIR NORM/2 | 156RH | M06 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM/CIDS/FLT ATTND PANL/BAT | 149RH | Q13 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM/CIDS/FWD ATTND PNL/BAT | 149RH | Q13 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | COM/CIDS/FLT ATTND PNL/ESS | 171RH | H01 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | COM/CIDS/FLT ATTND PNL/ESS | 171RH | G03 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM CIDS FWD ATTND PNL | 170RH | Q14 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM/FAP1/NORM | 170RH | Q14 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM NAV/CIDS/FWD ATTND/PNL | 170RH | Q14 |
Subtask 23-73-21-020-050-A ** ON A/C NOT FOR ALL
A. Removal of the On-Board Replaceable Module (OBRM)
(2) Push the quick-release button (3) carefully with a PIN - NON METALLIC to unlock the OBRM (4) from the OBRM slot (5).
(3) Before you touch the OBRM, do the procedure for devices that are sensitive to electrostatic discharge (Ref. AMM TASK 20-15-00-910-001).
(4) Pull the OBRM (4) carefully out of the OBRM slot (5).
CAUTION:
MAKE SURE THAT YOU USE WRIST STRAPS WHEN YOU REMOVE AND INSTALL AN ONBOARD REPLACEABLE MODULE (OBRM).
WRIST STRAPS WILL PREVENT POSSIBLE ELECTROSTATIC DISCHARGES, WHICH CAN CAUSE DAMAGE TO THE OBRM'S.
(1) Release the quick-release fastener (1) and open the cover (2) of the Flight Attendant Panel (FAP) (6). (2) Push the quick-release button (3) carefully with a PIN - NON METALLIC to unlock the OBRM (4) from the OBRM slot (5).
(3) Before you touch the OBRM, do the procedure for devices that are sensitive to electrostatic discharge (Ref. AMM TASK 20-15-00-910-001).
(4) Pull the OBRM (4) carefully out of the OBRM slot (5).