Installation of the Torque Shaft

TASK 27-54-45-400-003-A
Installation of the Torque Shaft

WARNING: MAKE SURE THAT THE FLIGHT CONTROL SAFETY-LOCKS AND THE WARNING NOTICES ARE IN POSITION.

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.

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

CAUTION: BE CAREFUL WHEN YOU DO MAINTENANCE TASKS ON THE WING TRAILING EDGE:

DO NOT CAUSE DAMAGE TO THE ELECTRICAL CABLE RACEWAYS.
DO NOT CAUSE DAMAGE TO THE ELECTRICAL CABLE INSTALLATIONS.
MAKE SURE THAT THE ELECTRICAL CABLES ARE INSTALLED CORRECTLY. INCORRECT INSTALLATION CAN CAUSE DAMAGE.

FIN: 6206CM
FIN: 6256CM

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	ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE
No specific	AR	SAFETY BARRIER(S)
No specific	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 0.44 and 0.36 m.daN (38.94 and 31.86 lbf.in )
No specific	Torque wrench: range to between 1.24 and 1.02 m.daN (109.73 and 90.27 lbf.in )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.03FDB1)	Mineral Oil base Grease-Anti-Fretting Paste -
(Material No.08BAA9)	Non Aqueous Cleaner-General - -
(Material No.12ACC1)	Corrosion Preventive Compound-Heavy Duty Soft Film -
(Material No.14SBA1)	Textile-Lint free Cotton -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
FOR [6206CM] (FLAP XMSN TORQUE SHAFT)
571AB
FOR [6256CM] (FLAP XMSN TORQUE SHAFT)
671AB

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
22	COTTER PIN	AIPC 27-54-44-01-010
21	NUT	AIPC 27-54-44-01-020
18	NUTS	AIPC 27-54-45-03-010

E. Referenced Information

REFERENCE	DESIGNATION
TASK 27-50-00-000-003-A	Removal of the Lock-Torque Shaft - Flaps and Slats (98D27504030001)
TASK 27-50-00-400-003-A	Installation of the Lock-Torque Shaft - Flaps and Slats (98D27504030001)
TASK 27-50-00-866-008-A	Extension of the Flaps on the Ground
TASK 27-50-00-866-008-A-01	Extension of the Flaps/Slats on the Ground
TASK 27-50-00-866-009-A	Retraction of the Flaps on the Ground
TASK 27-50-00-866-009-A-01	Retraction of the Flaps/Slats on the Ground
TASK 27-54-00-710-001-A	Operational Test of the Flap System
TASK 32-12-00-010-001-A	Open the Main Gear Doors for Access
TASK 32-12-00-410-001-A	Close the Main Gear Doors after Access
Torque Shafts - Flap Power Transmission ** ON A/C NOT FOR ALL
Torque Shafts - Flap Power Transmission ** ON A/C NOT FOR ALL
Torque Shafts - Flap Power Transmission

3. Job Set-up
Subtask 27-54-45-941-079-A

A. Safety Precautions
(1) Make sure that the SAFETY BARRIER(S) are in position.
(2) Make sure that the WARNING NOTICE(S) is in position to tell persons not to operate the flap/slat controls.
(3) Make sure that the WARNING NOTICE(S) is in position to tell persons not to operate the landing-gear doors.

Subtask 27-54-45-860-065-A

B. Aircraft Maintenance Configuration

WARNING: MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROLS SURFACES ARE CLEAR. MOVEMENT OF FLIGHT CONTROLS CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.

(1) Make sure that the flaps are fully extended (Ref. AMM TASK 27-50-00-866-008).
(2) Make sure that the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION is on the flap/slat control lever on panel 114VU.
(3) Make sure that the MLG doors are open (Ref. AMM TASK 32-12-00-010-001).
(4) Make sure that the 460005835 SLEEVE - GROUND LOCK is on the applicable MLG door actuator.
(5) Make sure that the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE is in the applicable position.
(6) Make sure that the applicable access panel is removed:

for 6206CM, panel 571AB
for 6256CM, panel 671AB.

(7) Make sure that the 98D27504030001 LOCK-TORQUE SHAFT (FLAPS AND SLATS) WITH CLAMP-PIVOT is installed on the flap torque shaft (Ref. AMM TASK 27-50-00-400-003), outboard of the removed component.

Subtask 27-54-45-865-065-A

C. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:

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

4. Procedure

CAUTION: BE CAREFUL WHEN YOU DO MAINTENANCE TASKS ON THE WING TRAILING EDGE:

DO NOT CAUSE DAMAGE TO THE ELECTRICAL CABLE RACEWAYS.
DO NOT CAUSE DAMAGE TO THE ELECTRICAL CABLE INSTALLATIONS.
MAKE SURE THAT THE ELECTRICAL CABLES ARE INSTALLED CORRECTLY. INCORRECT INSTALLATION CAN CAUSE DAMAGE.

Subtask 27-54-45-420-065-A

A. Preparation for Installation
(1) Use a clean Textile-Lint free Cotton - (Material No.14SBA1) made moist with Non Aqueous Cleaner-General - - (Material No.08BAA9) to clean:

The new AIPC 27-54-45-03-010 NUTS (18) and the new AIPC 27-54-44-01-020 NUT (21)
The bolts (10) and (19)
The washers (11) and (23)
The cotter pin (22)
The flanges of the torque shaft (14) and the plunging joint (15).

(2) Dry the parts:

WARNING: WHEN YOU USE COMPRESSED AIR:

USE THE CORRECT PROTECTION (FACE SHIELD OR GOGGLES)
DO NOT POINT THE AIRFLOW AT YOURSELF OR OTHER PERSONS.

LOOSE PARTICLES AND/OR HIGH PRESSURE AIR CAN CAUSE INJURY.

WARNING: DO NOT LET COMPRESSED GAS TOUCH YOUR SKIN. THE GAS CAN GO THROUGH THE SKIN AND MAKE BUBBLES IN THE BLOOD. THIS CONDITION CAN KILL YOU.

(a) Use compressed air to dry the cleaned areas.
(3) Make sure that the parts retained from the removed component are clean and in the correct condition.
(4) Do an inspection of the component interfaces and the adjacent area.
(5) Apply a thin layer of Mineral Oil base Grease-Anti-Fretting Paste - (Material No.03FDB1) to the torque shaft splines.

Subtask 27-54-45-420-052-A

B. Installation of the Torque Shaft
(1) Put the retaining ring (17) temporarily in position on the shaft of the plunging joint (15).
(2) Install the plunging joint (15) and attach it with the pin (16) and the retaining ring (17). Make sure that the plunging joint (15) is fully compressed.
(3) Hold the torque shaft assembly.
(4) During installation, hold the torque shaft (14) through the opening in the forward face of the shroud box.
(5) Install the torque shaft (14) through the:

seal base plate (25), the shroud box, the steady bearing (12) and into the torque shaft assembly 6208CM(6258CM).

(6) Make sure that the splines are engaged correctly and the pin holes are aligned.
(7) Attach the torque shaft (14) with the pin (13) and the retaining ring (20).
(8) Install the washer (11) with the bolt (10), the washer (23) and the nut (21).
(9) TORQUE the nut (21) to between 0.44 and 0.36 m.daN (38.94 and 31.86 lbf.in )

.
(10) Install a new AIPC 27-54-44-01-010 COTTER PIN (22).
(11) Attach the torque shaft (14) to the plunging joint (15) with the bolts (19) and the nuts (18).
(12) TORQUE the nuts (18) to between 1.24 and 1.02 m.daN (109.73 and 90.27 lbf.in )

.
(13) Loosely attach the seal base plate (25) to the shroud box with the bolts (24).
(14) Adjust the seal on the seal base plate (25) to give an equal radial clearance and tighten the bolts (24).
(15) Remove the 98D27504030001 LOCK-TORQUE SHAFT (FLAPS AND SLATS) WITH CLAMP-PIVOT (Ref. AMM TASK 27-50-00-000-003).

Subtask 27-54-45-916-052-A

C. Application of Special Materials
(1) Apply a layer of Corrosion Preventive Compound-Heavy Duty Soft Film - (Material No.12ACC1) to the:

nuts (18) and (21)
bolts (10) and (19)
washers (11) and (23)
cotter pin (22)
flanges of the torque shaft (14) and the plunging joint (15).

Subtask 27-54-45-865-066-A

D. Remove the safety clip(s) and the tag(s) and close 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 27-54-45-710-052-A

E. Operational Test of the Flap System
(1) Remove the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION from the flap/slat control lever.
(2) Retract the flaps fully (Ref. AMM TASK 27-50-00-866-009).
(3) Do an operational test of the flap system (Ref. AMM TASK 27-54-00-710-001). Make sure that the operation of the torque shafts is satisfactory.

5. Close-up
Subtask 27-54-45-410-052-A

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:
(a) FOR [6206CM] (FLAP XMSN TORQUE SHAFT)
install 571AB
(b) FOR [6256CM] (FLAP XMSN TORQUE SHAFT)
install 671AB.
(3) Remove the access platform(s).
(4) Remove the 460005835 SLEEVE - GROUND LOCK from each MLG door actuator.
(5) Close the MLG doors (Ref. AMM TASK 32-12-00-410-001).

Subtask 27-54-45-942-052-A

B. 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 23:53:25 UTC