Reset of the Torque Limiters of the Slat System on the Ground

TASK 27-80-00-866-006-A
Reset of the Torque Limiters of the Slat System on the Ground

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.

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

REFERENCE	QTY	DESIGNATION
No specific	1	ACCESS PLATFORM 4M (13 FT)
No specific	AR	SAFETY BARRIER(S)
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER
No specific	AR	WARNING NOTICE(S)

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
521CB, 521EB, 522CB, 522FB, 522HB, 522JB, 522KB, 522NB, 522QB, 522SB, 522UB, 621CB, 621EB, 622CB, 622FB, 622HB, 622JB, 622KB, 622NB, 622QB, 622SB, 622UB
522AB, 622AB
522YB, 622YB

C. 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 27-84-00-710-001-A	Operational Test of the Slat System
TASK 29-10-00-863-003-A	Pressurize the Blue Hydraulic System with a Hydraulic Ground Power-Cart
TASK 29-10-00-863-003-A-01	Pressurize the Blue Hydraulic System with the Blue Electric Pump
TASK 29-10-00-864-003-A	Depressurize the Blue Hydraulic System
TASK 57-41-37-000-004-A	Removal of the Pressure Relief Panels
TASK 57-41-37-000-006-A	Removal of the Access Panels
TASK 57-41-37-400-002-A	Installation of the Pressure Relief Panels
TASK 57-41-37-400-006-A	Installation of the Access Panels
Torque Limiters - Detail and Location ** ON A/C NOT FOR ALL
Torque Limiters - Detail and Location ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 27-80-00-941-055-A

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

Subtask 27-80-00-010-050-A ** ON A/C NOT FOR ALL

B. Get Access
(1) Put the ACCESS PLATFORM 4M (13 FT) in position below the applicable access panel.
(2) Remove the applicable access panel(s) to gain access to the torque limiter(s):

for the slat No.1 Torque Limiters:
521CB, 521EB
621CB, 621EB
(Ref. AMM TASK 57-41-37-000-004)
for the slat No.2 Torque Limiters:
522AB, 522CB
622AB, 622CB
(Ref. AMM TASK 57-41-37-000-004)
for the slat No.3 Torque Limiters:
522FB, 522HB, 522JB, 522KB
622FB, 622HB, 622JB, 622KB
(Ref. AMM TASK 57-41-37-000-006)
for the slat No.4 Torque Limiters:
522NB, 522QB
622NB, 622QB
(Ref. AMM TASK 57-41-37-000-006)
for the slat No.5 Torque Limiters:
522SB, 522UB
622SB, 622UB
(Ref. AMM TASK 57-41-37-000-006).

Subtask 27-80-00-010-050-B ** ON A/C NOT FOR ALL

B. Get Access
(1) Put the ACCESS PLATFORM 4M (13 FT) in position below the applicable access panel.
(2) Remove the applicable access panel(s) to gain access to the torque limiter(s):

for the slat No.1 Torque Limiters:
521CB, 521EB
621CB, 621EB
(Ref. AMM TASK 57-41-37-000-004)
for the slat No.2 Torque Limiters:
522YB, 522CB
622YB, 622CB
(Ref. AMM TASK 57-41-37-000-004)
for the slat No.3 Torque Limiters:
522FB, 522HB, 522JB, 522KB
622FB, 622HB, 622JB, 622KB
(Ref. AMM TASK 57-41-37-000-006)
for the slat No.4 Torque Limiters:
522NB, 522QB
622NB, 622QB
(Ref. AMM TASK 57-41-37-000-006)
for the slat No.5 Torque Limiters:
522SB, 522UB
622SB, 622UB
(Ref. AMM TASK 57-41-37-000-006).

Subtask 27-80-00-865-061-A

C. Open, safety and tag this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	FLIGHT CONTROLS/FLP/CTL AND MONG/SYS1	6CV	B07
** ON A/C NOT FOR ALL
49VU	FLIGHT CONTROLS/FLP/CTL AND MONG/SYS1	6CV	B02
** ON A/C ALL
121VU	FLIGHT CONTROLS/FLP/CTL AND/MONG/SYS2	8CV	Q21

Subtask 27-80-00-865-062-A

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	FLIGHT CONTROLS/SLT/CTL AND MONG/SYS1	5CV	B06
** ON A/C NOT FOR ALL
49VU	FLIGHT CONTROLS/SLT/CTL AND MONG/SYS1	5CV	B01
** ON A/C ALL
121VU	FLIGHT CONTROLS/WTB/SLT/SYS2	11CV	P19
121VU	FLIGHT CONTROLS/SLT/CTL/SYS2	7CV	R21
122VU	FLIGHT CONTROLS/WTB/SLT/SYS1	9CV	S06

Subtask 27-80-00-860-056-A

E. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).
(2) Pressurize the Blue hydraulic system
(Ref. AMM TASK 29-10-00-863-003).

NOTE: The Blue and/or the Green hydraulic system(s) operate(s) the slat system. If necessary, use the alternative hydraulic system.

NOTE: If you use the Blue Hydraulic System, an ECAM S/CTL SLAT SYS 2 FAULT message will show. This message can be ignored.

NOTE: If you use the Green Hydraulic System, an ECAM S/CTL SLAT SYS 1 FAULT message will show. This message can be ignored.

4. Procedure
Subtask 27-80-00-866-056-A

A. Reset of the Torque Limiters of the Slat System on the Ground
(1) Release the load from the torque limiter(s) and allow the indicators to be closed, as follows:
(a) Put the slat/flap control lever to the last position that had been set, before the torque limiter(s) operated.
(2) Remove the safety collar from the circuit breakers 9CV and 11CV.

Subtask 27-80-00-865-063-A

B. Open, safety and tag this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	FLIGHT CONTROLS/SLT/CTL AND MONG/SYS1	5CV	B06
** ON A/C NOT FOR ALL
49VU	FLIGHT CONTROLS/SLT/CTL AND MONG/SYS1	5CV	B01
** ON A/C ALL
121VU	FLIGHT CONTROLS/WTB/SLT/SYS2	11CV	P19
121VU	FLIGHT CONTROLS/SLT/CTL/SYS2	7CV	R21
122VU	FLIGHT CONTROLS/WTB/SLT/SYS1	9CV	S06

Subtask 27-80-00-866-057-A

C. Complete the Reset of the Torque Limiters
(1) Push each applicable indicator (1) down so that it aligns with the torque limiter, in the usual system condition.

Subtask 27-80-00-710-051-A

D. Operational Test
(1) Do the operational test of the slat system (Ref. AMM TASK 27-84-00-710-001).

5. Close-up
Subtask 27-80-00-410-050-A ** ON A/C NOT FOR ALL

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the applicable access panel(s) removed to gain access to the torque limiter(s):

for the slat No.1 Torque Limiters:
521CB, 521EB
621CB, 621EB
(Ref. AMM TASK 57-41-37-400-002)
for the slat No.2 Torque Limiters:
522AB, 522CB
622AB, 622CB
(Ref. AMM TASK 57-41-37-400-002)
for the slat No.3 Torque Limiters:
522FB, 522HB, 522JB, 522KB
622FB, 622HB, 622JB, 622KB
(Ref. AMM TASK 57-41-37-400-006)
for the slat No.4 Torque Limiters:
522NB, 522QB
622NB, 622QB
(Ref. AMM TASK 57-41-37-400-006)
for the slat No.5 Torque Limiters:
522SB, 522UB
622SB, 622UB
(Ref. AMM TASK 57-41-37-400-006).

Subtask 27-80-00-410-050-B ** ON A/C NOT FOR ALL

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the applicable access panel(s) removed to gain access to the torque limiter(s):

for the slat No.1 Torque Limiters:
521CB, 521EB
621CB, 621EB
(Ref. AMM TASK 57-41-37-400-002)
for the slat No.2 Torque Limiters:
522YB, 522CB
622YB, 622CB
(Ref. AMM TASK 57-41-37-400-002)
for the slat No.3 Torque Limiters:
522FB, 522HB, 522JB, 522KB
622FB, 622HB, 622JB, 622KB
(Ref. AMM TASK 57-41-37-400-006)
for the slat No.4 Torque Limiters:
522NB, 522QB
622NB, 622QB
(Ref. AMM TASK 57-41-37-400-006)
for the slat No.5 Torque Limiters:
522SB, 522UB
622SB, 622UB
(Ref. AMM TASK 57-41-37-400-006).

Subtask 27-80-00-865-064-A

B. 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/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/SLT/SYS1	9CV	S06

Subtask 27-80-00-860-057-A

C. Aircraft Maintenance Configuration
(1) Install the safety collars on the circuit breakers 9CV and 11CV.
(2) Depressurize the Blue hydraulic system
(Ref. AMM TASK 29-10-00-864-003).
(3) De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).

Subtask 27-80-00-942-054-A

D. Removal of Equipment
(1) Remove the safety barriers.
(2) Remove the WARNING NOTICE(S).
(3) Remove the ground support and maintenance equipment, the special and standard tools and all other items.

[Rev.10 from 2021] 2026.03.31 23:56:13 UTC