Automatic Integrity Test of the Slat and Flap Control Computers

TASK 27-51-00-750-001-A
Automatic Integrity Test of the Slat and Flap Control Computers

WARNING: PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU START A TASK ON OR NEAR:

THE FLIGHT CONTROLS
THE FLIGHT CONTROL SURFACES
THE LANDING GEAR AND THE RELATED DOORS
COMPONENTS THAT MOVE.

MOVEMENT OF COMPONENTS CAN KILL OR CAUSE INJURY TO PERSONS AND/OR CAN CAUSE DAMAGE TO THE EQUIPMENT.

WARNING: MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING GEAR. THIS WILL PREVENT UNWANTED MOVEMENT OF THE LANDING GEAR, AND THUS POSSIBLE INJURY TO PERSONS AND DAMAGE TO THE AIRCRAFT AND/OR EQUIPMENT.

FIN: 21CV
FIN: 22CV

1. Reason for the Job
Self Explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	SAFETY BARRIER(S)
No specific	AR	WARNING NOTICE(S)

B. 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 27-51-00-740-002-A	BITE Test of the Slat and Flap Control Computers (Flap System)
TASK 27-81-00-740-002-A	BITE Test of the Slat and Flap Control Computers (Slat System)
TASK 31-32-00-860-006-A	Procedure to Get Access to the SYSTEM REPORT/TEST F/CTL Page

3. Job Set-up
Subtask 27-51-00-941-073-A

A. Safety Precautions
(1) Put the SAFETY BARRIER(S) in position.
(2) Put a WARNING NOTICE(S) in position to tell persons not to operate the flight controls.

Subtask 27-51-00-860-058-A

B. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).
(2) Get access to the flight controls (F/CTL) page on the MCDU (Ref. AMM TASK 31-32-00-860-006).

Subtask 27-51-00-865-071-A

C. Make sure that this(these) circuit breaker(s) is(are) closed:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	FLIGHT CONTROLS/FLP/CTL AND MONG/SYS1	6CV	B07
49VU	FLIGHT CONTROLS/SLT/CTL AND MONG/SYS1	5CV	B06
** ON A/C NOT FOR ALL
49VU	FLIGHT CONTROLS/FLP/CTL AND MONG/SYS1	6CV	B02
49VU	FLIGHT CONTROLS/SLT/CTL AND MONG/SYS1	5CV	B01
** ON A/C ALL
121VU	FLIGHT CONTROLS/WTB/FLP/SYS2	12CV	P20
121VU	FLIGHT CONTROLS/WTB/SLT/SYS2	11CV	P19
121VU	FLIGHT CONTROLS/FLP/CTL AND/MONG/SYS2	8CV	Q21
121VU	FLIGHT CONTROLS/SLT/CTL/SYS2	7CV	R21
122VU	FLIGHT CONTROLS/WTB/FLP/SYS1	10CV	S07
122VU	FLIGHT CONTROLS/WTB/SLT/SYS1	9CV	S06

4. Procedure
Subtask 27-51-00-750-050-A

A. Automatic Integrity Test of the Slat and Flap Control Computers

NOTE: Use the Multipurpose Control Display Unit (MCDU) 3 on panel 1VU for the test. If the MCDU 3 is defective use the MCDU 2 on panel 11VU.

(1) Wait 15 seconds to make sure that the two SFCCs are in operation before you do the test.

ACTION	RESULT
1.On the MCDU: push the line key < SFCC 1.	On the MCDU: the MCDU shows the SFCC 1 menu.
2.Push the line key SYSTEM STATUS FLP >	the MCDU shows SYSTEM STATUS FLP NO FAULTS
3.Push the line key < RETURN
4.Push the line key < SLT SYSTEM STATUS	the MCDU shows SYSTEM STATUS SLT NO FAULTS
5.Push the line key < RETURN frequently until the MCDU shows the SYSTEM REPORT/TEST F/CTL menu.
6.Do the bite test of the SFCC (Ref. AMM TASK 27-81-00-740-002) and (Ref. AMM TASK 27-51-00-740-002).
7.Push the line key < SFCC 2.	the MCDU shows the SFCC 2 menu.
8.Do the SFCC test as described above with the SFCC 2 menu. 9.Push the line key < RETURN frequently until the CFDS MENU page is shown.
10.Do the bite test of the SFCC (Ref. AMM TASK 27-81-00-740-002) and (Ref. AMM TASK 27-51-00-740-002).

5. Close-up
Subtask 27-51-00-862-054-A

A. De-energize the Electrical Circuits
(1) De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).

Subtask 27-51-00-942-077-A

B. Removal of Equipment
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the safety barriers.
(3) Remove the WARNING NOTICE(S).
(4) Remove the ground support and maintenance equipment, the special and standard tools and all other items.

[Rev.10 from 2021] 2026.03.31 23:52:21 UTC