DOC AIRBUS | AMM A320FDeactivation of the Digital Flight Data Recorder (DFDR)
TASK 31-33-00-040-801-A
Deactivation of the Digital Flight Data Recorder (DFDR)
A. Referenced Information
3. Job Set-up
Subtask 31-33-00-860-077-A ** ON A/C NOT FOR ALL
Subtask 31-33-00-040-050-A ** ON A/C NOT FOR ALL
Subtask 31-33-00-860-078-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 00:34:28 UTC
Deactivation of the Digital Flight Data Recorder (DFDR)
FIN: 1TU ** ON A/C NOT FOR ALL
1. Reason for the JobNOTE: This procedure is for the deactivation of the Digital Flight Data Recorder (DFDR).
NOTE: Make sure that this procedure is used in agreement with the local authorities.
NOTE: This deactivation task is not related to an AFM-CDL/MMEL item.
2. Job Set-up InformationA. 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 31-32-00-860-008-A | Procedure to Get Access to the SYSTEM REPORT/TEST/INST Page |
| TASK 31-60-00-860-001-A | EIS Start Procedure |
| TASK 31-60-00-860-002-A | EIS Stop Procedure |
Subtask 31-33-00-860-077-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
(2) Do the EIS start procedure (upper ECAM DU and lower ECAM DU only)
(Ref. AMM TASK 31-60-00-860-001).
(3) Energize the CFDS (Ref. AMM TASK 31-32-00-860-008).
Subtask 31-33-00-865-111-A ** ON A/C NOT FOR ALL (1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
(2) Do the EIS start procedure (upper ECAM DU and lower ECAM DU only)
(Ref. AMM TASK 31-60-00-860-001).
(3) Energize the CFDS (Ref. AMM TASK 31-32-00-860-008).
B. Make sure that this(these) circuit breaker(s) is(are) closed:
4. Procedure| PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 121VU | RCDR/ACCLRM | 9TU | K18 |
| 121VU | RCDR/DFDR | 7TU | K16 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | FDIU | 8TU | K17 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | AIDS & RCDR/QAR | 14TU | K17 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | AIDS & RCDR/FDIMU | 5TV | K15 |
Subtask 31-33-00-040-050-A ** ON A/C NOT FOR ALL
A. Deactivation of the DFDR
(1) Open, safety and tag circuit breaker 7TU of the DFDR.
5. Close-up(1) Open, safety and tag circuit breaker 7TU of the DFDR.
NOTE: On the ECAM display the following message comes into view "RECORDER DFDR FAULT". This warning shows that the Solid State Flight Data Recorder (SSFDR) is deactivated.
Subtask 31-33-00-860-078-A ** ON A/C NOT FOR ALL
A. Put the aircraft back to its initial configuration.
(1) De-energize the CFDS (Ref. AMM TASK 31-32-00-860-008).
(2) Do the EIS stop procedure
(Ref. AMM TASK 31-60-00-860-002).
(3) Make an entry in the log book.
(4) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
(5) Make sure that the work area is clean and clear of tools and other items.
(1) De-energize the CFDS (Ref. AMM TASK 31-32-00-860-008).
(2) Do the EIS stop procedure
(Ref. AMM TASK 31-60-00-860-002).
(3) Make an entry in the log book.
(4) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
(5) Make sure that the work area is clean and clear of tools and other items.