SFCC 1 SLT 1 no ADIRU 2 Data or SFCC 2 SLT 2 no ADIRU 2 Data

TASK 27-81-00-810-825-A
SFCC 1 SLT 1 no ADIRU 2 Data or SFCC 2 SLT 2 no ADIRU 2 Data

1. Possible Causes

SLAT/FLAP CONTR.COMP. [21CV]
SLAT/FLAP CONTR.COMP. [22CV]
ADIRU-2 [1FP2]
aircraft wiring

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 27-51-34-000-001	Removal of the SFCC
AMM 27-51-34-400-001	Installation of the SFCC
ASM 278108
AMM 31-32-00-860-006	Procedure to Get Access to the SYSTEM REPORT/TEST F/CTL Page
AMM 34-12-34-000-001	Removal of the ADIRU
AMM 34-12-34-400-001	Installation of the ADIRU

3. Fault Confirmation
Subtask 27-81-00-740-063-A

A. Test
(1) At the MCDU aet the MENU MODE and get access to the SYSTEM REPORT/TEST F/CTL page. AMM 31-32-00-860-006.
(a) Get access to the SFCC 1 (2) SYSTEM DATA SLAT page and push the line key adjacent to the ARINC 429 INPUT STATUS indication:

if the ARINC input status shows ADIRU 2 LABEL *** NO DATA, do the Fault Isolation Procedure.

NOTE: Additional information on the ARINC 429 INPUT STATUS page can be found in Page Block 301.

4. Fault Isolation
Subtask 27-81-00-810-074-A

A. Procedure
(1) Interchange SFCC 1 with SFCC 2 AMM 27-51-34-000-001 AMM 27-51-34-400-001.
(a) Do the test given in Para. 3.A.
(b) If the fault moves with the SFCC 1(2):
1 Install the serviceable SFCC to its initial position.
2 Replace the defective SLAT/FLAP CONTR.COMP. [21CV] or SLAT/FLAP CONTR.COMP. [22CV] .
(c) If the fault does not move to the other SFCC:
1 Install the SFCCs to their initial positions.
2 Do the next step.
(d) If the fault continues, replace the ADIRU-2 [1FP2]
AMM 34-12-34-000-001 and AMM 34-12-34-400-001.
(2) Do the test given in Para. 3.A.

if the fault continues, do the next step.

(3) Do a check and repair the aircraft wiring ASM 278108.
(4) Do the test given in Para. 3.A.

[Rev.8 from Aug 2018] 2026.04.04 04:27:49 UTC