DOC AIRBUS | AMM A320FRemoval of the Rudder Control Frame
TASK 27-21-47-000-001-A
Removal of the Rudder Control Frame
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Referenced Information
3. Job Set-up
Subtask 27-21-47-010-050-B
(1) Energize the aircraft electrical circuits. (Ref. AMM TASK 24-41-00-861-002)
(2) Pressurize the Blue hydraulic system with the electric pump. (Ref. AMM TASK 29-10-00-863-003)
(3) Put the rudder pedals in the neutral position.
(4) On the center pedestal, on the panel 110VU, make sure that the RUD TRIM indicator shows 0.
(5) Depressurize the Blue hydraulic system and put it in the maintenance configuration (Ref. AMM TASK 29-00-00-864-001).
(6) Make sure that the Green and Yellow hydraulic systems are depressurized and put them in the maintenance configuration (Ref. AMM TASK 29-00-00-864-001).
(7) On the overhead panel 23VU, release the FLT CTL/FAC 1 pushbutton switch. The OFF legend comes on.
(8) On the overhead panel 24VU, release the FLT CTL/FAC 2 pushbutton switch. The OFF legend comes on.
(9) Put the WARNING NOTICE(S) in the cockpit to tell persons not to operate the flight controls.
(10) De-energize the aircraft electrical circuits. (Ref. AMM TASK 24-41-00-862-002)
(11) Put the WARNING NOTICE(S) in position to tell persons not to operate the hydraulic systems:
(13) Put the 98D27207547000 PIN-RIGGING (70) in the rudder cable quadrant.
Subtask 27-21-47-865-050-A
Subtask 27-21-47-020-050-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.03.31 23:48:34 UTC
Removal of the Rudder Control Frame
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.
ZONE: 325
1. Reason for the JobSelf explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | ACCESS PLATFORM 10M (33 FT) - ADJUSTABLE |
| No specific | 1 | ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE |
| No specific | AR | SAFETY CLIP - CIRCUIT BREAKER |
| No specific | AR | WARNING NOTICE(S) |
| 98D27207546000 | 1 | PIN-RIGGING |
| 98D27207547000 | 1 | PIN-RIGGING |
| REFERENCE | DESIGNATION |
|---|---|
| No specific | lockwire, corrosion-resistant steel dia 0.8 mm (0.032 in.) |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 325 | VERTICAL STABILIZER TRAILING EDGE |
| 312AR, 325AL, 325BL, 325BR, 325CL |
| 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 27-22-51-000-001-A | Removal of the Rudder Trim Actuator |
| TASK 27-23-41-000-001-A | Removal of the Artificial Feel and Trim Unit |
| TASK 27-26-41-000-001-A | Removal of the Centering Spring Rod for the Actuator of the Yaw Damper Servo |
| TASK 27-26-51-000-001-A | Removal of the Yaw Damper Servo Actuator |
| TASK 29-00-00-864-001-A | Put the Related Hydraulic System in the Depressurized Configuration before Maintenance Action |
| 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 53-55-12-000-001-A | Removal of the Rudder Fairings |
| TASK 55-33-13-010-002-A | Opening/Removal of the Trailing Edge Access-Panels of the Vertical Stabilizer |
Location of the Rigging Pins and the Attached ComponentsSubtask 27-21-47-010-050-B
A. Get Access
(1) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position at zone 312.
(2) Open the access door 312AR.
(3) Put the ACCESS PLATFORM 10M (33 FT) - ADJUSTABLE in position at zone 325.
(4) Open the access panels 325BL 325BR 325CL (Ref. AMM TASK 55-33-13-010-002).
(5) Remove the rudder fairing 325AL (Ref. AMM TASK 53-55-12-000-001).
Subtask 27-21-47-865-053-A (1) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position at zone 312.
(2) Open the access door 312AR.
(3) Put the ACCESS PLATFORM 10M (33 FT) - ADJUSTABLE in position at zone 325.
(4) Open the access panels 325BL 325BR 325CL (Ref. AMM TASK 55-33-13-010-002).
(5) Remove the rudder fairing 325AL (Ref. AMM TASK 53-55-12-000-001).
B. Make sure that this(these) circuit breaker(s) is(are) closed:
Subtask 27-21-47-860-050-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | AUTO FLT/FAC1/28VDC | 5CC1 | B04 |
| 49VU | AUTO FLT/FAC1/26VAC | 14CC1 | B03 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | AUTO FLT/FAC1/28VDC | 5CC1 | H10 |
| 49VU | AUTO FLT/FAC1/26VAC | 14CC1 | H09 |
| ** ON A/C ALL | |||
| 121VU | AUTO FLT/RUDDER/TRIM/IND | 15CC | M20 |
| 121VU | AUTO FLT/FAC2/28VDC | 5CC2 | M19 |
| 121VU | AUTO FLT/FAC2/26VAC | 14CC2 | M18 |
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.
C. Aircraft Maintenance Configuration(1) Energize the aircraft electrical circuits. (Ref. AMM TASK 24-41-00-861-002)
(2) Pressurize the Blue hydraulic system with the electric pump. (Ref. AMM TASK 29-10-00-863-003)
(3) Put the rudder pedals in the neutral position.
(4) On the center pedestal, on the panel 110VU, make sure that the RUD TRIM indicator shows 0.
(5) Depressurize the Blue hydraulic system and put it in the maintenance configuration (Ref. AMM TASK 29-00-00-864-001).
(6) Make sure that the Green and Yellow hydraulic systems are depressurized and put them in the maintenance configuration (Ref. AMM TASK 29-00-00-864-001).
(7) On the overhead panel 23VU, release the FLT CTL/FAC 1 pushbutton switch. The OFF legend comes on.
(8) On the overhead panel 24VU, release the FLT CTL/FAC 2 pushbutton switch. The OFF legend comes on.
(9) Put the WARNING NOTICE(S) in the cockpit to tell persons not to operate the flight controls.
(10) De-energize the aircraft electrical circuits. (Ref. AMM TASK 24-41-00-862-002)
(11) Put the WARNING NOTICE(S) in position to tell persons not to operate the hydraulic systems:
- in the cockpit on the hydraulic section 40VU of the overhead panel,
- on the ground service panels of the Green, Yellow and Blue hydraulic systems.
(13) Put the 98D27207547000 PIN-RIGGING (70) in the rudder cable quadrant.
D. Open, safety and tag this(these) circuit breaker(s):
4. Procedure| PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | AUTO FLT/FAC1/28VDC | 5CC1 | B04 |
| 49VU | AUTO FLT/FAC1/26VAC | 14CC1 | B03 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | AUTO FLT/FAC1/28VDC | 5CC1 | H10 |
| 49VU | AUTO FLT/FAC1/26VAC | 14CC1 | H09 |
| ** ON A/C ALL | |||
| 121VU | AUTO FLT/RUDDER/TRIM/IND | 15CC | M20 |
| 121VU | AUTO FLT/FAC2/28VDC | 5CC2 | M19 |
| 121VU | AUTO FLT/FAC2/26VAC | 14CC2 | M18 |
Subtask 27-21-47-020-050-A ** ON A/C NOT FOR ALL
A. Removal of the Rudder Control Frame
(1) Remove the centering spring rod (6) for the yaw-damper servo actuators 3CC1, 3CC2 (4) (Ref. AMM TASK 27-26-41-000-001).
(2) Remove the yaw-damper servo actuators 3CC1 and 3CC2 (4) (Ref. AMM TASK 27-26-51-000-001).
(3) Disconnect the electrical connections to:
(a) Remove the nuts (56), the washers (55) and the bolts (54) connecting the support beam (52) at each side of the rudder control frame (1).
(c) Remove the nuts (57), the washers (58) and the bolts (59) connecting the support beam (53) at each side of the rudder control frame (1).
(d) Move the support beam (53) away from the bottom connection to the rudder control frame (1).
(e) Safety the support beams (52),(53) clear of the rudder control frame (1).
(6) Safety the hydraulic pipelines and the electrical cables clear of the rudder control frame (1).
(7) Disconnect the control rod (2) from the rudder control frame (1).
(a) Remove and discard the cotter pin (31).
(b) Remove the nut (30), the washer (29) and the bolt (26).
(c) Move the eye-end of the control rod (2) clear of the bellcrank (28) of the rudder control frame (1).
(d) Temporarily safety the sliding bush (27) in the bellcrank (28) with lockwire, corrosion-resistant steel dia 0.8 mm (0.032 in.).
(8) Disconnect the control rod (3) from the rudder control frame (1).
(a) Remove and discard the cotter pin (40).
(b) Remove the nut (39), the washer (38) and the bolt (35).
(c) Move the eye-end of the control rod (3) clear of the lever arm (37) of the rudder control frame (1).
(d) Temporarily safety the sliding bush (36) in the lever arm (37) with lockwire, corrosion-resistant steel dia 0.8 mm (0.032 in.).
(a) Disconnect the rudder control frame (1) from the top connection positions to the structure.
1 Remove the screws (32) and the washers (33) from the connection of the bonding straps (34) to the rudder control frame (1).
2 Move the bonding straps (34) clear of the rudder control frame (1).
4 Remove the nuts (21), the washers (22) and the bolts (24).
(b) Disconnect the rudder control frame (1) from the bottom connection positions to the structure.
1 Remove the screws (41) and the washers (42) from the connection of the bonding straps (43) to the rudder control frame (1).
2 Move the bonding straps (43) clear of the rudder control frame (1).
4 Hold the rudder control frame (1) in position.
5 Remove the nuts (45), the washers (46) and the bolts (49).
(c) Move the rudder control frame (1) away from the support brackets (25) at the top connection positions.
(d) Move the rudder control frame (1) away from the links (47) at the bottom connection positions.
(e) Remove the rudder control frame (1).
(g) Temporarily safety the sliding bushes (48) in the links with lockwire, corrosion-resistant steel dia 0.8 mm (0.032 in.).
(11) Remove the rudder trim actuator 10CC (5) from the rudder control frame (1) (Ref. AMM TASK 27-22-51-000-001).
Subtask 27-21-47-020-050-B ** ON A/C NOT FOR ALL (1) Remove the centering spring rod (6) for the yaw-damper servo actuators 3CC1, 3CC2 (4) (Ref. AMM TASK 27-26-41-000-001).
(2) Remove the yaw-damper servo actuators 3CC1 and 3CC2 (4) (Ref. AMM TASK 27-26-51-000-001).
(3) Disconnect the electrical connections to:
- the artificial feel and trim unit (8) (Ref. AMM TASK 27-23-41-000-001),
- the rudder trim actuator 10CC (5) (Ref. AMM TASK 27-22-51-000-001).
(a) Remove the nuts (56), the washers (55) and the bolts (54) connecting the support beam (52) at each side of the rudder control frame (1).
NOTE: Identify nuts (56), the washers (55) and the bolts (54) removed from the bonding points for installation in the same positions.
(b) Move the support beam (52) away from the top connection to the rudder control frame (1). (c) Remove the nuts (57), the washers (58) and the bolts (59) connecting the support beam (53) at each side of the rudder control frame (1).
(d) Move the support beam (53) away from the bottom connection to the rudder control frame (1).
(e) Safety the support beams (52),(53) clear of the rudder control frame (1).
NOTE: Do not disconnect the hydraulic pipelines from the support beams (52),(53) unless a repair or a new installation is necessary.
(5) Disconnect all the brackets and the P-clips which connect: - the hydraulic pipelines,
- the electrical cables,
(6) Safety the hydraulic pipelines and the electrical cables clear of the rudder control frame (1).
(7) Disconnect the control rod (2) from the rudder control frame (1).
(a) Remove and discard the cotter pin (31).
(b) Remove the nut (30), the washer (29) and the bolt (26).
(c) Move the eye-end of the control rod (2) clear of the bellcrank (28) of the rudder control frame (1).
(d) Temporarily safety the sliding bush (27) in the bellcrank (28) with lockwire, corrosion-resistant steel dia 0.8 mm (0.032 in.).
(8) Disconnect the control rod (3) from the rudder control frame (1).
(a) Remove and discard the cotter pin (40).
(b) Remove the nut (39), the washer (38) and the bolt (35).
(c) Move the eye-end of the control rod (3) clear of the lever arm (37) of the rudder control frame (1).
(d) Temporarily safety the sliding bush (36) in the lever arm (37) with lockwire, corrosion-resistant steel dia 0.8 mm (0.032 in.).
NOTE: Do not disconnect the control rods (50),(51) from the rudder control frame (1) unless a repair or a new installation is necessary.
(9) Remove the rudder control frame (1). (a) Disconnect the rudder control frame (1) from the top connection positions to the structure.
1 Remove the screws (32) and the washers (33) from the connection of the bonding straps (34) to the rudder control frame (1).
2 Move the bonding straps (34) clear of the rudder control frame (1).
NOTE: Do not disconnect the bonding straps (34) from the structure unless a repair or a new installation is necessary.
3 Remove and discard the cotter pins (20). 4 Remove the nuts (21), the washers (22) and the bolts (24).
(b) Disconnect the rudder control frame (1) from the bottom connection positions to the structure.
1 Remove the screws (41) and the washers (42) from the connection of the bonding straps (43) to the rudder control frame (1).
2 Move the bonding straps (43) clear of the rudder control frame (1).
NOTE: Do not disconnect the bonding straps (43) from the structure unless a repair or a new installation is necessary.
3 Remove and discard the cotter pins (44). 4 Hold the rudder control frame (1) in position.
5 Remove the nuts (45), the washers (46) and the bolts (49).
(c) Move the rudder control frame (1) away from the support brackets (25) at the top connection positions.
(d) Move the rudder control frame (1) away from the links (47) at the bottom connection positions.
(e) Remove the rudder control frame (1).
NOTE: Make sure that the control rods (2),(3) and the support beams (52),(53) are clear of the rudder control frame (1).
(f) Temporarily safety the sliding bushes (23) in the rudder control frame (1) at the top connection positions with lockwire, corrosion-resistant steel dia 0.8 mm (0.032 in.). (g) Temporarily safety the sliding bushes (48) in the links with lockwire, corrosion-resistant steel dia 0.8 mm (0.032 in.).
NOTE: Do not disconnect the links (47) from the support brackets unless a repair or a new installation is necessary.
(10) Remove the artificial feel and trim unit (8) complete with the solenoid 16CA (7) from the rudder control frame (1) (Ref. AMM TASK 27-23-41-000-001). (11) Remove the rudder trim actuator 10CC (5) from the rudder control frame (1) (Ref. AMM TASK 27-22-51-000-001).
A. Removal of the Rudder Control Frame
(1) Remove the centering spring rod (6) for the yaw-damper servo actuators 3CC1, 3CC2 (4) (Ref. AMM TASK 27-26-41-000-001).
(2) Remove the yaw-damper servo actuators 3CC1 and 3CC2 (4) (Ref. AMM TASK 27-26-51-000-001).
(3) Disconnect the electrical connections to:
(a) Remove the nuts (56), the washers (55) and the bolts (54) connecting the support beam (52) at each side of the rudder control frame (1).
(c) Remove the nuts (57), the washers (58) and the bolts (59) connecting the support beam (53) at each side of the rudder control frame (1).
(d) Move the support beam (53) away from the bottom connection to the rudder control frame (1).
(e) Safety the support beams (52),(53) clear of the rudder control frame (1).
(6) Safety the hydraulic pipelines and the electrical cables clear of the rudder control frame (1).
(7) Disconnect the control rod (2) from the rudder control frame (1).
(a) Remove and discard the cotter pin (31).
(b) Remove the nut (30), the washer (29) and the bolt (26).
(c) Move the eye-end of the control rod (2) clear of the bellcrank (28) of the rudder control frame (1).
(d) Temporarily safety the sliding bush (27) in the bellcrank (28) with lockwire, corrosion-resistant steel dia 0.8 mm (0.032 in.).
(8) Disconnect the control rod (3) from the rudder control frame (1).
(a) Remove and discard the cotter pin (40).
(b) Remove the nut (39), the washer (38) and the bolt (35).
(c) Move the eye-end of the control rod (3) clear of the lever arm (37) of the rudder control frame (1).
(d) Temporarily safety the sliding bush (36) in the lever arm (37) with lockwire, corrosion-resistant steel dia 0.8 mm (0.032 in.).
(a) Disconnect the rudder control frame (1) from the top connection positions to the structure.
1 Remove the screws (32) and the washers (33) from the connection of the bonding straps (34) to the rudder control frame (1).
2 Move the bonding straps (34) away from the rudder control frame (1).
4 Remove the nuts (21), the washers (22) and the bolts (24) and (124).
(b) Disconnect the rudder control frame (1) from the bottom connection positions to the structure:
1 Remove the screws (41) and the washers (42) from the connection of the bonding straps (43) to the rudder control frame (1).
2 Move the bonding straps (43) away from the rudder control frame (1).
4 Hold the rudder control frame (1) in position.
5 Remove the nut (45), the washer (46), the bush (48) and the bolt (49).
6 Remove the nuts (105), the washers (104) and the bolts (101) and (102).
7 Remove the the bushes (103).
(c) At the top connection positions:
Carefully move the rudder control frame (1) away from the support brackets (25).
(d) At the bottom connection positions:
Carefully move the rudder control frame (1) away from the link (47) and from the rocker (100).
(e) Remove the rudder control frame (1).
(g) Temporarily safety the bush (48) in the link (47) with lockwire, corrosion-resistant steel dia 0.8 mm (0.032 in.).
(h) Temporarily safety the bushes (103) in the rocker (100) with lockwire, corrosion-resistant steel dia 0.8 mm (0.032 in.).
(11) Remove the rudder trim actuator 10CC (5) from the rudder control frame (1) (Ref. AMM TASK 27-22-51-000-001).
(1) Remove the centering spring rod (6) for the yaw-damper servo actuators 3CC1, 3CC2 (4) (Ref. AMM TASK 27-26-41-000-001).
(2) Remove the yaw-damper servo actuators 3CC1 and 3CC2 (4) (Ref. AMM TASK 27-26-51-000-001).
(3) Disconnect the electrical connections to:
- the artificial feel and trim unit (8) (Ref. AMM TASK 27-23-41-000-001),
- the rudder trim actuator 10CC (5) (Ref. AMM TASK 27-22-51-000-001).
(a) Remove the nuts (56), the washers (55) and the bolts (54) connecting the support beam (52) at each side of the rudder control frame (1).
NOTE: Identify nuts (56), the washers (55) and the bolts (54) removed from the bonding points for installation in the same positions.
(b) Move the support beam (52) away from the top connection to the rudder control frame (1). (c) Remove the nuts (57), the washers (58) and the bolts (59) connecting the support beam (53) at each side of the rudder control frame (1).
(d) Move the support beam (53) away from the bottom connection to the rudder control frame (1).
(e) Safety the support beams (52),(53) clear of the rudder control frame (1).
NOTE: Do not disconnect the hydraulic pipelines from the support beams (52),(53) unless a repair or a new installation is necessary.
(5) Disconnect all the brackets and the P-clips which connect: - the hydraulic pipelines,
- the electrical cables,
(6) Safety the hydraulic pipelines and the electrical cables clear of the rudder control frame (1).
(7) Disconnect the control rod (2) from the rudder control frame (1).
(a) Remove and discard the cotter pin (31).
(b) Remove the nut (30), the washer (29) and the bolt (26).
(c) Move the eye-end of the control rod (2) clear of the bellcrank (28) of the rudder control frame (1).
(d) Temporarily safety the sliding bush (27) in the bellcrank (28) with lockwire, corrosion-resistant steel dia 0.8 mm (0.032 in.).
(8) Disconnect the control rod (3) from the rudder control frame (1).
(a) Remove and discard the cotter pin (40).
(b) Remove the nut (39), the washer (38) and the bolt (35).
(c) Move the eye-end of the control rod (3) clear of the lever arm (37) of the rudder control frame (1).
(d) Temporarily safety the sliding bush (36) in the lever arm (37) with lockwire, corrosion-resistant steel dia 0.8 mm (0.032 in.).
NOTE: Do not disconnect the control rods (50),(51) from the rudder control frame (1) unless a repair or a new installation is necessary.
(9) Remove the rudder control frame (1). (a) Disconnect the rudder control frame (1) from the top connection positions to the structure.
1 Remove the screws (32) and the washers (33) from the connection of the bonding straps (34) to the rudder control frame (1).
2 Move the bonding straps (34) away from the rudder control frame (1).
NOTE: Do not disconnect the bonding straps (34) from the structure unless a repair or a new installation is necessary.
3 Remove and discard the cotter pins (20). 4 Remove the nuts (21), the washers (22) and the bolts (24) and (124).
(b) Disconnect the rudder control frame (1) from the bottom connection positions to the structure:
1 Remove the screws (41) and the washers (42) from the connection of the bonding straps (43) to the rudder control frame (1).
2 Move the bonding straps (43) away from the rudder control frame (1).
NOTE: Do not disconnect the bonding straps (43) from the structure unless a repair or a new installation is necessary.
3 Remove and discard the cotter pins (44) and (106). 4 Hold the rudder control frame (1) in position.
5 Remove the nut (45), the washer (46), the bush (48) and the bolt (49).
6 Remove the nuts (105), the washers (104) and the bolts (101) and (102).
7 Remove the the bushes (103).
(c) At the top connection positions:
Carefully move the rudder control frame (1) away from the support brackets (25).
(d) At the bottom connection positions:
Carefully move the rudder control frame (1) away from the link (47) and from the rocker (100).
(e) Remove the rudder control frame (1).
NOTE: Make sure that the control rods (2),(3) and the support beams (52),(53) are clear of the rudder control frame (1).
(f) Temporarily safety the sliding bushes (23) in the rudder control frame (1) at the top connection positions with lockwire, corrosion-resistant steel dia 0.8 mm (0.032 in.). (g) Temporarily safety the bush (48) in the link (47) with lockwire, corrosion-resistant steel dia 0.8 mm (0.032 in.).
(h) Temporarily safety the bushes (103) in the rocker (100) with lockwire, corrosion-resistant steel dia 0.8 mm (0.032 in.).
NOTE: Do not disconnect the link (47) or the rocker (100) from the support brackets unless a repair or a new installation is necessary.
(10) Remove the artificial feel and trim unit (8) complete with the solenoid 16CA (7) from the rudder control frame (1) (Ref. AMM TASK 27-23-41-000-001). (11) Remove the rudder trim actuator 10CC (5) from the rudder control frame (1) (Ref. AMM TASK 27-22-51-000-001).