DOC AIRBUS | AMM A320FDownloading of ATSU ISM internal memory
TASK 46-21-00-860-808-B
Downloading of ATSU ISM internal memory
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Work Zones and Access Panels
C. Referenced Information
3. Job Set-up
Subtask 46-21-00-861-113-A ** ON A/C NOT FOR ALL Subtask 46-21-00-865-107-A ** ON A/C NOT FOR ALL
Subtask 46-21-00-410-055-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.02 06:26:03 UTC
Downloading of ATSU ISM internal memory
CAUTION:
DURING THE DOWNLOADING, MAKE SURE THAT MAINTENANCE PERSONNEL:
- DO NOT CHANGE THE SOURCE OF THE AIRCRAFT POWER SUPPLY (GROUND POWER UNIT, APU, ETC.)
- DO NOT TOUCH OR MOVE THE PORTABLE DATA LOADER (PDL).
NOTE: ATSU RECORDS INFORMATION RELATED TO ITS FUNCTIONNING. THESE INFORMATION NAMED ISM (IN SERVICE MONITORING) TRACES ARE RECORDED IN INTERNAL DEDICATED ATSU MEMORIES. THESE INFORMATION ARE USED BY AIRBUS TO INVESTIGATE IN-SERVICE INCIDENTS AND ISSUES. PURPOSE OF THIS TASK IS TO RECOVER THIS MEMORIES CONTAIN.
NOTE: THE ISM MEMORIES IS RECORDED BY ATSU IN SIX FILES NAMED: ISM_FLASH_SYNC, ISM_FLASH_ASYNC1, ISM_FLASH2_ASYNC, ISM_FLASH_ASYNC3, ISM_FLASH4_ASYNC AND ISM_FLASH5_ASYNC.
NOTE: TO RETRIEVE A SPECIFIC ISM FILE A FILE NAMED " 0200_1.lnr " IS NEEDED. THIS FILE IS DIFFERENT FOR EACH ISM FILE TO RETRIEVE BUT HAS ALWAYS THE SAME NAME. THESE FILES SHOULD BE STORED IN CORRESPONDING REPOSITORY BEFORE ISM DOWNLOAD TASK STARTING: ISM_FLASH_SYNC, ISM_FLASH_ASYNC1, ISM_FLASH2_ASYNC, ISM_FLASH_ASYNC3, ISM_FLASH4_ASYNC, ISM_FLASH5_ASYNC. TO OBTAIN THESE FILES, PLEASE CONTACT THE AIRBUS CUSTOMER SERVICES DEPARTMENT.
NOTE: WHEN THE TASK IS COMPLETED RECOVERED ISM FILES SHOULD BE SENT TO AIRBUS.
1. Reason for the JobSelf explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE |
| ALT45200001 | 1 | PORTABLE DATA LOADER |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 824 |
| 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) |
Subtask 46-21-00-861-113-A ** ON A/C NOT FOR ALL Subtask 46-21-00-865-107-A ** ON A/C NOT FOR ALL
B. Make sure that this(these) circuit breaker(s) is(are) closed:
Subtask 46-21-00-860-173-A ** ON A/C NOT FOR ALL | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | AUTO FLT/MCDU/1 | 11CA1 | B01 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | L/G/LGCIU/SYS1/NORM | 1GA | C09 |
| 49VU | FWS/FWC1/SPLY | 3WW | F01 |
| 49VU | COM/RMP/1 | 2RG1 | G10 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | AUTO FLT/MCDU/1 | 11CA1 | H07 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | CFDS/CFDIU/SPLY | 2TW | J18 |
| 121VU | PDL/PWR/SPLY | 14TD | K19 |
| 121VU | ATSU 1 | 3TX1 | L16 |
| 121VU | ATSU 1/SWTG | 5TX1 | L15 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM NAV/RMP/2 | 2RG2 | L02 |
| 121VU | AUTO FLT/MCDU/2 | 11CA2 | N20 |
| 121VU | HYDRAULIC/LGCIU/SYS2 | 2GA | Q35 |
| 121VU | EIS/FWC2/SPLY | 2WW | Q07 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM/VHF/3 | 2RC3 | L05 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | DATA/LOADER/SPLY | 3TD | J16 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM NAV/VHF/3 | 2RC3 | L05 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | PDL/PWR/SPLY | 14TD | J45 |
| 121VU | CFDS/CFDIU/SPLY | 2TW | J41 |
| 121VU | DATA/LOADER/SPLY | 3TD | J39 |
| 121VU | ATSU 1 | 3TX1 | K43 |
| 121VU | ATSU 1/SWTG | 5TX1 | K42 |
C. Aircraft Maintenance Configuration
(1) Make sure that the aircraft is in the ground configuration.
Subtask 46-21-00-480-070-A ** ON A/C NOT FOR ALL (1) Make sure that the aircraft is in the ground configuration.
D. Get access to the avionics compartment.
(1) Put an ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position at access door 824 in zone 128.
(2) Open access door 824
Subtask 46-21-00-480-071-A ** ON A/C NOT FOR ALL (1) Put an ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position at access door 824 in zone 128.
(2) Open access door 824
E. Installation of the ALT45200001 PORTABLE DATA LOADER
(1) Connect the cable between the ALT45200001 PORTABLE DATA LOADER and connector 183VC located at the bottom of electronics rack 80VU.
Subtask 46-21-00-860-174-A ** ON A/C NOT FOR ALL 4. Procedure(1) Connect the cable between the ALT45200001 PORTABLE DATA LOADER and connector 183VC located at the bottom of electronics rack 80VU.
NOTE: Purpose of this task is to recover 6 ISM files named ISM_FLASH_SYNC, ISM_FLASH_ASYNC1, ISM_FLASH_ASYNC2, ISM_FLASH_ASYNC3, SM_FLASH_ASYNC4, ISM_FLASH_ASYNC5.
NOTE: All 6 ISM files should be recovered regardless of the order.
NOTE: For each file to recover a configuration file named "002_1.lnr" should be used. The file name or contain should not be modified by the operator.
NOTE: A full ATSU downloading is approximately 45 minutes long.
Subtask 46-21-00-970-105-A ** ON A/C NOT FOR ALL A. Downloading of ATSU ISM files
(1) Insert in PDL a removable media (e.g USB key) with repositories containing the 0200_1.lnr files.
Or copy in PDL internal memory the different repositories and their contains (refer to the PDL user guide to perform this step).
(2) On PDL Select the following options :
(a) Select in PDL input the file 002_1.lnr located in repository which has the same name as the ISM file to recover.
(b) Start downloading operation (refer to PDL user guide).
(4) When all ISM files have been recovered go to step Stop of the ATSU ISM downloading procedure.
Subtask 46-21-00-860-175-A ** ON A/C NOT FOR ALL (1) Insert in PDL a removable media (e.g USB key) with repositories containing the 0200_1.lnr files.
Or copy in PDL internal memory the different repositories and their contains (refer to the PDL user guide to perform this step).
(2) On PDL Select the following options :
- Downloading type : Media Defined Download operation
- Target system : ATSU
NOTE: Depending on used PDL model some supplementary parameters could be needed to be defined - Refer to the PDL user's guide to set all the parameters requested for a downloading.
(3) The following procedure should be followed to recover each ISM file (ISM_FLASH_SYNC, ISM_FLASH_ASYNC1, ISM_FLASH_ASYNC2, ISM_FLASH_ASYNC3, ISM_FLASH_ASYNC4, ISM_FLASH_ASYNC5). (a) Select in PDL input the file 002_1.lnr located in repository which has the same name as the ISM file to recover.
(b) Start downloading operation (refer to PDL user guide).
NOTE: The file recovered from ATSU can be stored in PDL internal memory or in removable media connected to PDL (e.g. USB key), depending on PDL capacities or operator preferencies.
(c) When the ISM file has been recovered go to step (3) in order to download next ISM file. (4) When all ISM files have been recovered go to step Stop of the ATSU ISM downloading procedure.
B. Stop of the ATSU ISM downloading procedure
(1) Stop the PDL (Refer to the portable data-loader user guide).
(2) Disconnect the cable between the PORTABLE DATA LOADER and connector 183VC located at the bottom of electronics rack 80VU.
5. Close-up(1) Stop the PDL (Refer to the portable data-loader user guide).
(2) Disconnect the cable between the PORTABLE DATA LOADER and connector 183VC located at the bottom of electronics rack 80VU.
NOTE: This cable disconnection will generate an ATSU restart.
(3) On cockpit make sure that the ATSU prompt comes into view on the MCDU MENU page. NOTE: Recovered ISM files should be provided to AIRBUS.
Subtask 46-21-00-410-055-A ** 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
(3) Remove the access platform(s).
Subtask 46-21-00-862-085-A ** ON A/C NOT FOR ALL (1) Make sure that the work area is clean and clear of tools and other items.
(2) Close access door 824
(3) Remove the access platform(s).