Removal of the Torque Shaft
TASK 27-54-45-000-012-A
Removal of the Torque Shaft
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Work Zones and Access Panels
C. Referenced Information
3. Job Set-up
Subtask 27-54-45-941-058-A
[Rev.10 from 2021]
2026.04.01 07:01:40 UTC
Removal of the Torque Shaft
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.
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.
CAUTION:
BE CAREFUL WHEN YOU DO MAINTENANCE TASKS ON THE WING TRAILING EDGE:
1. Reason for the Job- 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.
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | AR | ACCESS PLATFORM 4M (13 FT) |
| No specific | AR | SAFETY BARRIER(S) |
| No specific | AR | SAFETY CLIP - CIRCUIT BREAKER |
| No specific | AR | WARNING NOTICE(S) |
| 98D27504030001 | 1 | LOCK-TORQUE SHAFT (FLAPS AND SLATS) WITH CLAMP-PIVOT |
| 98D27604000000 | 1 | COLLAR-SAFETY, SPOILER |
| 98D27604004000 | 1 | COLLAR SAFETY SPOILER |
| 98D27803000000 | 1 | LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| FOR [6228CM] (FLAP XMSN TORQUE SHAFT) | |
| 575DB, 575EB | |
| FOR [6278CM] (FLAP XMSN TORQUE SHAFT) | |
| 675DB, 675EB | |
| REFERENCE | DESIGNATION |
|---|---|
| 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 27-60-00-866-002-A | Extension-Retraction of the Spoilers for Maintenance |
Subtask 27-54-45-941-058-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 flap/slat controls.
Subtask 27-54-45-860-061-A (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 flap/slat controls.
B. Aircraft Maintenance Configuration
(2) Install the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION on the flap/slat control lever.
Subtask 27-54-45-865-058-A 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) Extend the flaps fully (Ref. AMM TASK 27-50-00-866-008). (2) Install the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION on the flap/slat control lever.
C. Open, safety and tag this(these) circuit breaker(s):
Subtask 27-54-45-010-059-A | 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 |
D. Get Access
(1) Put the ACCESS PLATFORM 4M (13 FT) in the applicable position.
(2) Remove the applicable access panel:
(a) FOR [6228CM] (FLAP XMSN TORQUE SHAFT)
remove 575DB 575EB
(b) FOR [6278CM] (FLAP XMSN TORQUE SHAFT)
remove 675DB 675EB.
(3) Put the applicable spoiler in the 'M' (Maintenance) position (Ref. AMM TASK 27-60-00-866-002).
(4) Put the 98D27604000000 COLLAR-SAFETY, SPOILER or 98D27604004000 COLLAR SAFETY SPOILER on the piston rod of the servo-control.
4. Procedure(1) Put the ACCESS PLATFORM 4M (13 FT) in the applicable position.
(2) Remove the applicable access panel:
(a) FOR [6228CM] (FLAP XMSN TORQUE SHAFT)
remove 575DB 575EB
(b) FOR [6278CM] (FLAP XMSN TORQUE SHAFT)
remove 675DB 675EB.
(3) Put the applicable spoiler in the 'M' (Maintenance) position (Ref. AMM TASK 27-60-00-866-002).
(4) Put the 98D27604000000 COLLAR-SAFETY, SPOILER or 98D27604004000 COLLAR SAFETY SPOILER on the piston rod of the servo-control.
CAUTION:
BE CAREFUL WHEN YOU DO MAINTENANCE TASKS ON THE WING TRAILING EDGE:
Subtask 27-54-45-020-061-A - 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.
A. Removal of the Torque Shaft
(1) Install the 98D27504030001 LOCK-TORQUE SHAFT (FLAPS AND SLATS) WITH CLAMP-PIVOT on a flap torque shaft, outboard of the component that you remove (Ref. AMM TASK 27-50-00-400-003).
(2) Remove and discard the nuts (89).
(3) Remove the bolts (90) and the torque shaft (84).
(4) Remove the retaining ring (87) and the pin (85).
(5) Remove the torque shaft (86) and the universal joint (88).
(1) Install the 98D27504030001 LOCK-TORQUE SHAFT (FLAPS AND SLATS) WITH CLAMP-PIVOT on a flap torque shaft, outboard of the component that you remove (Ref. AMM TASK 27-50-00-400-003).
(2) Remove and discard the nuts (89).
(3) Remove the bolts (90) and the torque shaft (84).
(4) Remove the retaining ring (87) and the pin (85).
(5) Remove the torque shaft (86) and the universal joint (88).
Torque Shafts - Flap Power Transmission