Reactivation of the Slat and Flap Control Computer (SFCC) No. 2 Flap Channel

TASK 27-51-00-440-001-A
Reactivation of the Slat and Flap Control Computer (SFCC) No. 2 Flap Channel

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.

ZONE: 128
FIN: 21CV
FIN: 22CV

1. Reason for the Job
MMEL 27-51-01A
SFCC FLAP CHANNEL

NOTE: For the reactivation of the SFCC No. 2 slat channel refer to TASK 27-51-00-440-005.

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. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
128	REAR AVIONIC COMPARTMENT

C. Referenced Information

REFERENCE	DESIGNATION
TASK 27-51-00-740-002-A	BITE Test of the Slat and Flap Control Computers (Flap System)
ESPM 2010000

3. Job Set-up
Subtask 27-51-00-941-074-A

A. Safety Precautions
(1) As necessary, use the applicable SAFETY BARRIERS, specified by the operator's instructions and your local regulations.
(2) Put a WARNING NOTICE(S) in position to tell persons not to operate the slats and flaps.

Subtask 27-51-00-865-094-A

B. Table of the circuit breakers used in this procedure:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
121VU	FLIGHT CONTROLS/WTB/FLP/SYS2	12CV	P20

4. Procedure
Subtask 27-51-00-865-106-A

A. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
121VU	FLIGHT CONTROLS/FLP/CTL AND/MONG/SYS2	8CV	Q21

Subtask 27-51-00-440-051-A

B. Reactivation of the SFCC No. 2 Flap Channel
(1) If the circuit breaker 12CV was opened during the deactivation:

Remove the safety clip and tag and close the circuit breaker 12CV.

(a) This circuit breaker has a red threaded bush. To close this circuit breaker you need a special tool ESPM 2010000.
(2) Do the BITE test of the SFCC 2 (Flap Channel) to make sure that the status of the SFCC 2 (Flap Channel) is correct (Ref. AMM TASK 27-51-00-740-002).
If there are fault messages refer to the Trouble Shooting Manual (TSM) to do the applicable correction(s). Use the Fault Symptom(s) as entry into the TSM.
(3) Make an entry in the aircraft technical logbook to say that the SFCC No. 2 flap channel was reactivated.

5. Close-up
Subtask 27-51-00-942-071-A

A. 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 23:52:10 UTC