DOC AIRBUS | TSM A320FSFCC 1 FLP 1 no CFDIU Data or SFCC 2 FLP 2 no CFDIU Data, Fault Related to the SFCC Arinc Input
TASK 27-51-00-810-834-A
SFCC 1 FLP 1 no CFDIU Data or SFCC 2 FLP 2 no CFDIU Data, Fault Related to the SFCC Arinc Input
1. Possible Causes
A. Referenced Information
3. Fault Confirmation
Subtask 27-51-00-710-065-A
Subtask 27-51-00-865-075-A
Subtask 27-51-00-860-078-A
[Rev.8 from Aug 2018]
2026.04.04 04:27:39 UTC
SFCC 1 FLP 1 no CFDIU Data or SFCC 2 FLP 2 no CFDIU Data, Fault Related to the SFCC Arinc Input
1. Possible Causes
- SLAT/FLAP CONTR.COMP. [21CV]
- SLAT/FLAP CONTR.COMP. [22CV]
aircraft wiring between the CFDIU ARINC connector and the SFCC 1(2) ARINC electrical connector.
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| TSM TASK 27-51-00-810-844-A | Flap Menu Not Available On The CFDIU, Fault Related to the SFCC ARINC Output |
| ASM 275108 | |
| AMM 27-51-34-000-001 | Removal of the SFCC |
| AMM 27-51-34-400-001 | Installation of the SFCC |
Subtask 27-51-00-710-065-A
A. Message Analysis
(1) This fault confirmation is for SFCC 1 and SFCC 2.
(a) For the CFDIU BUS 3 and the CFDIU BUS 4 data transmission faults, refer to TSM chapter 31-32-00, PB 201.
(2) The fault message is generated by the SFCC 1 (2) if the CFDIU BUS 3 (CFDIU BUS 4) supplies no data.
(a) Set the MCDU to MENU MODE and go to the FLAP ARINC INPUT STATUS page.
(b) If the CFDIU displays the message 'WAIT FOR SYSTEM RESPONSE' on the MCDU scratchpad and then replaces the message with 'NO RESPONSE PRESS RETURN':
(d) If access to the SFCC 1 (2) SYSTEM DATA is possible, go to the FLAP ARINC INPUT STATUS page.
(e) If the FLAP ARINC INPUT STATUS page shows CFDIU LABEL *** NO DATA, do the fault isolation procedure in Para 4.
(f) If the FLAP ARINC INPUT STATUS page shows CFDIU OK, do the SFCC Reset and Initialization Para.4.A. and 4.B.
(g) Set the MCDU to MENU MODE and go to the FLAP ON GROUND FAULTS page and make sure that the ground log shows no faults.
4. Fault Isolation(1) This fault confirmation is for SFCC 1 and SFCC 2.
(a) For the CFDIU BUS 3 and the CFDIU BUS 4 data transmission faults, refer to TSM chapter 31-32-00, PB 201.
(2) The fault message is generated by the SFCC 1 (2) if the CFDIU BUS 3 (CFDIU BUS 4) supplies no data.
(a) Set the MCDU to MENU MODE and go to the FLAP ARINC INPUT STATUS page.
(b) If the CFDIU displays the message 'WAIT FOR SYSTEM RESPONSE' on the MCDU scratchpad and then replaces the message with 'NO RESPONSE PRESS RETURN':
- do the CFDIU troubleshooting procedure (refer to TSM chapter 31-32-00, PB 201).
(d) If access to the SFCC 1 (2) SYSTEM DATA is possible, go to the FLAP ARINC INPUT STATUS page.
(e) If the FLAP ARINC INPUT STATUS page shows CFDIU LABEL *** NO DATA, do the fault isolation procedure in Para 4.
(f) If the FLAP ARINC INPUT STATUS page shows CFDIU OK, do the SFCC Reset and Initialization Para.4.A. and 4.B.
(g) Set the MCDU to MENU MODE and go to the FLAP ON GROUND FAULTS page and make sure that the ground log shows no faults.
Subtask 27-51-00-865-075-A
A. Table of the circuit breakers used in this procedure:
Subtask 27-51-00-710-067-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C ALL | |||
| 49VU | FLIGHT CONTROLS/FLP/CTL AND MONG/SYS1 | 6CV | B07 |
| 121VU | FLIGHT CONTROLS/FLP/CTL AND/MONG/SYS2 | 8CV | Q21 |
B. SFCC Reset and Initialization
(1) At the circuit breakers:
(a) Open the circuit breakers.
(b) Wait for 3 seconds and close the circuit breakers.
(c) Wait for 60 seconds.
(d) Check the UPPER ECAM and the SD FLT/CTL page for the fault warnings.
(e) If the ECAM warning message does not show, set the MCDU to MENU MODE and get access to the FLP ON GROUND FAULTS page.
Make sure that the ground log shows no faults.
(f) If the ECAM warning and the fault message stay, do the procedure at Para.4.C.
Subtask 27-51-00-810-084-A (1) At the circuit breakers:
(a) Open the circuit breakers.
(b) Wait for 3 seconds and close the circuit breakers.
(c) Wait for 60 seconds.
(d) Check the UPPER ECAM and the SD FLT/CTL page for the fault warnings.
(e) If the ECAM warning message does not show, set the MCDU to MENU MODE and get access to the FLP ON GROUND FAULTS page.
Make sure that the ground log shows no faults.
(f) If the ECAM warning and the fault message stay, do the procedure at Para.4.C.
C. Procedure
(1) Interchange SFCC 1 with SFCC 2
AMM 27-51-34-000-001 and AMM 27-51-34-400-001.
(a) If the fault moves with SFCC 1(2):
1 Put the serviceable SFCC back in its initial position.
2 Replace the unserviceable SLAT/FLAP CONTR.COMP. [21CV] or SLAT/FLAP CONTR.COMP. [22CV] .
(b) If the fault does not move to the other SFCC:
aircraft wiring between the CFDIU ARINC connector and the SFCC 1(2) ARINC electrical connector. ,
ASM 275108.
(a) If there is no continuity, repair the wiring/interface.
(3) Do the reset as in Para. 3.A.(2)(c).
(a) Set the MCDU to MENU MODE and go to the FLAP ON GROUND FAULTS page. Make sure that the ground log shows no faults.
(4) If the fault stays, the fault is with the circuit interface to the CFDIU (refer to TSM chapter 31-32-00, PB 201).
5. Close-up(1) Interchange SFCC 1 with SFCC 2
AMM 27-51-34-000-001 and AMM 27-51-34-400-001.
(a) If the fault moves with SFCC 1(2):
1 Put the serviceable SFCC back in its initial position.
2 Replace the unserviceable SLAT/FLAP CONTR.COMP. [21CV] or SLAT/FLAP CONTR.COMP. [22CV] .
(b) If the fault does not move to the other SFCC:
- Install the SFCCs in their initial positions.
ASM 275108.
(a) If there is no continuity, repair the wiring/interface.
(3) Do the reset as in Para. 3.A.(2)(c).
(a) Set the MCDU to MENU MODE and go to the FLAP ON GROUND FAULTS page. Make sure that the ground log shows no faults.
(4) If the fault stays, the fault is with the circuit interface to the CFDIU (refer to TSM chapter 31-32-00, PB 201).
Subtask 27-51-00-860-078-A
A. Put the aircraft back to its initial configuration.