Installation of the Elevator Support Struts
TASK 55-16-48-400-001-A
Installation of the Elevator Support Struts
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Expendable Parts
D. Referenced Information
3. Job Set-up
Subtask 55-16-48-860-051-A
Subtask 55-16-48-410-051-A
[Rev.10 from 2021]
2026.04.01 02:05:19 UTC
Installation of the Elevator Support Struts
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 TRAVEL RANGES OF THE FLIGHT CONTROLS SURFACES ARE CLEAR. MOVEMENT OF FLIGHT CONTROLS CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.
WARNING:
YOU MUST PUT ON AND ATTACH A SAFETY HARNESS BEFORE YOU START WORK:
- ON THE THS OR IN THE REAR FUSELAGE
- ON TOP OF THE WINGS OR PYLONS.
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:
DO NOT CAUSE DAMAGE TO THE SURFACES. THE COMPONENTS ARE MADE OF CARBONFIBER REINFORCED PLASTIC.
1. Reason for the JobSelf explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | Torque wrench: range to between 0.55 and 0.45 m.daN (48.67 and 39.82 lbf.in ) ![]() | |
| No specific | Torque wrench: range to between 1.80 and 0.96 m.daN (159.29 and 84.96 lbf.in ) ![]() | |
| No specific | Torque wrench: range to between 1.53 and 1.36 m.daN (135 and 120 lbf.in ) ![]() | |
| No specific | Torque wrench: range to between 3.39 and 2.82 m.daN (25.00 and 20.80 lbf.ft ) ![]() | |
| No specific | Torque wrench: range to between 4.07 and 3.39 m.daN (30.01 and 25.00 lbf.ft ) ![]() | |
| 98D27309009003 | 1 | COLLAR-DEPTH ACTUATOR |
| 98D27309009004 | 1 | COLLAR-DEPTH ACTUATOR |
| 98D27903500000 | 2 | PIN-SIDE STICK LOCKING |
| 98D55109010000 | 1 | WRENCH-GROOVE NUT,ELEVATOR SUPPORT STRUT |
| SL90-313-3750 | 1 | TOOL - INSTALLATION, TAB WASHERS STA-LOK NSA5454 |
| SL90-315-3750 | 1 | WRENCH - NOTCHED, TIGHTENING OF NUTS NSA5454 |
| SL90-626-3125 | 1 | TOOL - INSTALLATION, WASHERS SL40871 |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.03FBB1) | Mineral Oil base Grease-General Purpose Medium Temp. - |
| (Material No.03GBC1) | Synthetic Oil base Grease-General Purpose Lithium Thickened Low Temp. - |
| (Material No.08BBC1) | Non Aqueous Cleaner-- Naphta based and Alcohol - |
| FIG.ITEM | DESIGNATION | IPC-CSN |
|---|---|---|
| 12 | COTTER PIN | AIPC 27-34-07-26-010 |
| 18 | COTTER PIN | AIPC 27-34-07-26-030 |
| 20 | COTTER PIN | AIPC 55-16-48-01-010 |
| 7 | COTTER PIN | AIPC 55-16-48-01-073 |
| 11 | COTTER PIN | AIPC 55-16-48-01-074 |
| 4 | TAB WASHER | AIPC 55-16-48-01-120 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 20-22-00-400-001-A | Installation of STA-LOK Nuts and Lockwashers |
| TASK 29-10-00-864-001-A | Depressurize the Green Hydraulic System |
| TASK 29-10-00-864-002-A | Depressurize the Yellow Hydraulic System |
| TASK 29-10-00-864-003-A | Depressurize the Blue Hydraulic System |
| TASK 55-13-11-400-001-A | Install/Close of the Trimmable Horizontal Stabilizer (THS) Trailing-Edge Access-Panels |
Subtask 55-16-48-860-051-A
A. Aircraft Maintenance Configuration
(1) Make sure that the hydraulic systems are depressurized (Ref. AMM TASK 29-10-00-864-001), (Ref. AMM TASK 29-10-00-864-002), (Ref. AMM TASK 29-10-00-864-003).
(2) Make sure that the 98D27903500000 PIN-SIDE STICK LOCKING is installed in the CAPT and F/O side sticks.
(3) Make sure that the 98D27309009003 COLLAR-DEPTH ACTUATOR or 98D27309009004 COLLAR-DEPTH ACTUATOR is installed on the servocontrol elevator.
(4) Make sure that the warning notices are in the flight compartment to tell persons not to operate the flight controls.
(5) Make sure that the warning notices are in position to tell persons not to operate the hydraulic systems.
(6) Make sure that the access platforms are in position at zone 334 and/or zone 344.
(7) Make sure that the trailing edge panels 334FB, 334EB and/or 344FB, 344EB are open/removed.
Subtask 55-16-48-865-053-A (1) Make sure that the hydraulic systems are depressurized (Ref. AMM TASK 29-10-00-864-001), (Ref. AMM TASK 29-10-00-864-002), (Ref. AMM TASK 29-10-00-864-003).
(2) Make sure that the 98D27903500000 PIN-SIDE STICK LOCKING is installed in the CAPT and F/O side sticks.
(3) Make sure that the 98D27309009003 COLLAR-DEPTH ACTUATOR or 98D27309009004 COLLAR-DEPTH ACTUATOR is installed on the servocontrol elevator.
(4) Make sure that the warning notices are in the flight compartment to tell persons not to operate the flight controls.
(5) Make sure that the warning notices are in position to tell persons not to operate the hydraulic systems.
(6) Make sure that the access platforms are in position at zone 334 and/or zone 344.
(7) Make sure that the trailing edge panels 334FB, 334EB and/or 344FB, 344EB are open/removed.
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
Subtask 55-16-48-210-050-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/ELAC1/NORM/SPLY | 15CE1 | B11 |
| 49VU | FLIGHT CONTROLS/THS/ACTR/MOT2 | 19CE2 | B09 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/ELAC1/NORM/SPLY | 15CE1 | B06 |
| 49VU | FLIGHT CONTROLS/THS/ACTR/MOT2 | 19CE2 | B04 |
| ** ON A/C ALL | |||
| 105VU | FLIGHT CONTROLS/ELAC2/STBY SPLY | 16CE2 | A02 |
| 105VU | FLT CTL/ELAC1/STBY SPLY | 16CE1 | A01 |
| 121VU | FLIGHT CONTROLS/THS ACTR/MOT3 | 19CE3 | Q17 |
| 121VU | FLIGHT CONTROLS/THS ACTR/MOT1 | 19CE1 | Q16 |
| 121VU | FLIGHT CONTROLS/ELAC2/NORM/SPLY | 15CE2 | R20 |
| 122VU | LIGHTING/LOGO/L | 2LY | V03 |
| 122VU | LIGHTING/LOGO/R | 1LY | V02 |
C. Visual Inspection
(1) Make sure that the parts retained from the removed component are clean and in the correct condition.
Subtask 55-16-48-110-050-A (1) Make sure that the parts retained from the removed component are clean and in the correct condition.
D. Cleaning
(1) Clean the component interface and/or the adjacent area with Non Aqueous Cleaner-- Naphta based and Alcohol - (Material No.08BBC1) .
4. Procedure(1) Clean the component interface and/or the adjacent area with Non Aqueous Cleaner-- Naphta based and Alcohol - (Material No.08BBC1) .
NOTE: The procedures to install the elevator support strut (2) on the left and the right side are the same. The procedure that follows gives the installation procedure of the elevator support strut (2) on the left side.
Subtask 55-16-48-420-050-A A. Installation of the Elevator Support Strut Bearing
(1) Put the bearing (21) in position.
(2) TORQUE the nut (22) to between 3.39 and 2.82 m.daN (25.00 and 20.80 lbf.ft )
with the 98D55109010000 WRENCH-GROOVE NUT,ELEVATOR SUPPORT STRUT.
(3) Align the hole of the nut (22) with the hole of the elevator support-strut end (1) and install the new AIPC 55-16-48-01-010 COTTER PIN (20). If this is not possible:
(a) Drill a hole with a diameter of 2 mm (0.0787 in.) in the nut (22).
(b) Install the new AIPC 55-16-48-01-010 COTTER PIN (20).
Subtask 55-16-48-820-050-A (1) Put the bearing (21) in position.
(2) TORQUE the nut (22) to between 3.39 and 2.82 m.daN (25.00 and 20.80 lbf.ft )
with the 98D55109010000 WRENCH-GROOVE NUT,ELEVATOR SUPPORT STRUT. (3) Align the hole of the nut (22) with the hole of the elevator support-strut end (1) and install the new AIPC 55-16-48-01-010 COTTER PIN (20). If this is not possible:
(a) Drill a hole with a diameter of 2 mm (0.0787 in.) in the nut (22).
(b) Install the new AIPC 55-16-48-01-010 COTTER PIN (20).
B. Adjustment of the Length of the Elevator Support Strut
(1) Put the elevator support strut (2) in position.
(2) Install the bushes (9) and the bolts (8) and (14).
(3) If you install a new elevator support strut (2):
(a) Turn the rod to adjust its length to the center of the elevator hinge fittings in the hinge arm fittings of the Trimmable Horizontal Stabilizer (THS).
(4) If you do not install a new elevator support strut (2):
(a) Remove the tab washers (4) from the elevator support strut (2) and discard them.
(b) Install the new AIPC 55-16-48-01-120 TAB WASHER (4). Do not bend the tab washers (4) at this time.
(c) Turn the rod to adjust the elevator support strut (2) to the center of the elevator hinge fittings in the hinge arm fittings of the THS.
(5) TORQUE the nuts (3) and (25) to between 4.07 and 3.39 m.daN (30.01 and 25.00 lbf.ft )
.
Subtask 55-16-48-420-052-A (1) Put the elevator support strut (2) in position.
(2) Install the bushes (9) and the bolts (8) and (14).
(3) If you install a new elevator support strut (2):
(a) Turn the rod to adjust its length to the center of the elevator hinge fittings in the hinge arm fittings of the Trimmable Horizontal Stabilizer (THS).
(4) If you do not install a new elevator support strut (2):
(a) Remove the tab washers (4) from the elevator support strut (2) and discard them.
(b) Install the new AIPC 55-16-48-01-120 TAB WASHER (4). Do not bend the tab washers (4) at this time.
(c) Turn the rod to adjust the elevator support strut (2) to the center of the elevator hinge fittings in the hinge arm fittings of the THS.
(5) TORQUE the nuts (3) and (25) to between 4.07 and 3.39 m.daN (30.01 and 25.00 lbf.ft )
. CAUTION:
WHEN YOU BEND THE TAB WASHER, BE CAREFUL NOT TO CAUSE DAMAGE TO THE SUPPORT STRUT.
(6) Safety the nuts (3) and (25) with the tab washers (4).C. Installation of the Elevator Support Struts on the Elevator
(1) Apply Mineral Oil base Grease-General Purpose Medium Temp. - (Material No.03FBB1) on all the connection components.
(2) Install the elevator support-strut end (1) on the elevator.
(3) Install the bush (15) in the elevator support-strut end (1) and the washer (19).
(4) If the hinge bolt (14) is safetied with the STA-LOK nut:
(a) Install the nut (16) with the SL90-315-3750 WRENCH - NOTCHED, TIGHTENING OF NUTS NSA5454.
(b) TORQUE the nut (16) to between 0.55 and 0.45 m.daN (48.67 and 39.82 lbf.in )
.
(c) Install the locking ring (17) with the SL90-313-3750 TOOL - INSTALLATION, TAB WASHERS STA-LOK NSA5454 (Ref. AMM TASK 20-22-00-400-001).
(5) If the hinge bolt (14) is safetied with the Autobrake System (ABS):
(a) Install the nut (23).
(b) TORQUE the nut (23) to between 1.53 and 1.36 m.daN (135 and 120 lbf.in )
.
(c) Install the locking cup (24) and safety it with the new AIPC 27-34-07-26-030 COTTER PIN (18).
(6) Install the new AIPC 27-34-07-26-010 COTTER PIN (12).
Subtask 55-16-48-420-053-A ** ON A/C NOT FOR ALL (1) Apply Mineral Oil base Grease-General Purpose Medium Temp. - (Material No.03FBB1) on all the connection components.
(2) Install the elevator support-strut end (1) on the elevator.
(3) Install the bush (15) in the elevator support-strut end (1) and the washer (19).
(4) If the hinge bolt (14) is safetied with the STA-LOK nut:
(a) Install the nut (16) with the SL90-315-3750 WRENCH - NOTCHED, TIGHTENING OF NUTS NSA5454.
(b) TORQUE the nut (16) to between 0.55 and 0.45 m.daN (48.67 and 39.82 lbf.in )
. (c) Install the locking ring (17) with the SL90-313-3750 TOOL - INSTALLATION, TAB WASHERS STA-LOK NSA5454 (Ref. AMM TASK 20-22-00-400-001).
(5) If the hinge bolt (14) is safetied with the Autobrake System (ABS):
(a) Install the nut (23).
(b) TORQUE the nut (23) to between 1.53 and 1.36 m.daN (135 and 120 lbf.in )
.(c) Install the locking cup (24) and safety it with the new AIPC 27-34-07-26-030 COTTER PIN (18).
(6) Install the new AIPC 27-34-07-26-010 COTTER PIN (12).
D. Installation of the Elevator Support Struts on the THS
(1) Apply Synthetic Oil base Grease-General Purpose Lithium Thickened Low Temp. - (Material No.03GBC1) or Mineral Oil base Grease-General Purpose Medium Temp. - (Material No.03FBB1) on all the connection components.
(2) Install the elevator support strut (2) on the THS.
(3) Install the bushes (9) and the bolt (8).
(4) Install the nut (10) but do not tighten it at this time.
(5) TORQUE the nuts (3) and (25) to between 4.07 and 3.39 m.daN (30.01 and 25.00 lbf.ft )
.
(7) TORQUE the nut (10) to between 1.80 and 0.96 m.daN (159.29 and 84.96 lbf.in )
.
(8) Install the new AIPC 55-16-48-01-074 COTTER PIN (11).
(9) Install the new AIPC 55-16-48-01-073 COTTER PIN (7).
Subtask 55-16-48-420-053-B ** ON A/C NOT FOR ALL (1) Apply Synthetic Oil base Grease-General Purpose Lithium Thickened Low Temp. - (Material No.03GBC1) or Mineral Oil base Grease-General Purpose Medium Temp. - (Material No.03FBB1) on all the connection components.
(2) Install the elevator support strut (2) on the THS.
(3) Install the bushes (9) and the bolt (8).
(4) Install the nut (10) but do not tighten it at this time.
(5) TORQUE the nuts (3) and (25) to between 4.07 and 3.39 m.daN (30.01 and 25.00 lbf.ft )
. CAUTION:
WHEN YOU BEND THE TAB WASHER, BE CAREFUL NOT TO CAUSE DAMAGE TO THE SUPPORT STRUT.
(6) Safety the nuts (3) and (25) with the tab washers (4). (7) TORQUE the nut (10) to between 1.80 and 0.96 m.daN (159.29 and 84.96 lbf.in )
. (8) Install the new AIPC 55-16-48-01-074 COTTER PIN (11).
(9) Install the new AIPC 55-16-48-01-073 COTTER PIN (7).
D. Installation of the Elevator Support Struts on the THS
(1) Apply Synthetic Oil base Grease-General Purpose Lithium Thickened Low Temp. - (Material No.03GBC1) or Mineral Oil base Grease-General Purpose Medium Temp. - (Material No.03FBB1) on all the connection components.
(2) Install the elevator support strut (2) on the THS.
(3) Install the bushes (9) and the bolt (8).
(4) If the bolt (8) is safetied with the STA-LOK nut:
(a) Install the nut (10) but do not tighten it at this time.
(5) If the bolt (8) is safetied with the castellated nut:
(a) Install the nut (13) but do not tighten it at this time.
(6) TORQUE the nuts (3) and (25) to between 4.07 and 3.39 m.daN (30.01 and 25.00 lbf.ft )
.
(8) If the bolt (8) is safetied with the STA-LOK nut:
(a) TORQUE the nut (10) to between 1.80 and 0.96 m.daN (159.29 and 84.96 lbf.in )
.
(b) Install the internal locking ring (11) with the SL90-626-3125 TOOL - INSTALLATION, WASHERS SL40871 (Ref. AMM TASK 20-22-00-400-001).
(9) If the bolt (8) is safetied with the castellated nut:
(a) TORQUE the nut (13) to between 1.80 and 0.96 m.daN (159.29 and 84.96 lbf.in )
.
(10) Install the new AIPC 55-16-48-01-073 COTTER PIN (7).
5. Close-up(1) Apply Synthetic Oil base Grease-General Purpose Lithium Thickened Low Temp. - (Material No.03GBC1) or Mineral Oil base Grease-General Purpose Medium Temp. - (Material No.03FBB1) on all the connection components.
(2) Install the elevator support strut (2) on the THS.
(3) Install the bushes (9) and the bolt (8).
(4) If the bolt (8) is safetied with the STA-LOK nut:
(a) Install the nut (10) but do not tighten it at this time.
(5) If the bolt (8) is safetied with the castellated nut:
(a) Install the nut (13) but do not tighten it at this time.
(6) TORQUE the nuts (3) and (25) to between 4.07 and 3.39 m.daN (30.01 and 25.00 lbf.ft )
. CAUTION:
WHEN YOU BEND THE TAB WASHER, BE CAREFUL NOT TO CAUSE DAMAGE TO THE SUPPORT STRUT.
(7) Safety the nuts (3) and (25) with the tab washers (4). (8) If the bolt (8) is safetied with the STA-LOK nut:
(a) TORQUE the nut (10) to between 1.80 and 0.96 m.daN (159.29 and 84.96 lbf.in )
. (b) Install the internal locking ring (11) with the SL90-626-3125 TOOL - INSTALLATION, WASHERS SL40871 (Ref. AMM TASK 20-22-00-400-001).
(9) If the bolt (8) is safetied with the castellated nut:
(a) TORQUE the nut (13) to between 1.80 and 0.96 m.daN (159.29 and 84.96 lbf.in )
. (10) Install the new AIPC 55-16-48-01-073 COTTER PIN (7).
Subtask 55-16-48-410-051-A
A. Visual Inspection
(1) Make sure that the work area is clean and clear of tools and other items.
Subtask 55-16-48-410-050-A (1) Make sure that the work area is clean and clear of tools and other items.
B. Close Access
(1) Install/close the trailing edge panels 334FB, 334EB left-hand and/or 344FB, 344EB right-hand (Ref. AMM TASK 55-13-11-400-001).
Subtask 55-16-48-081-050-A (1) Install/close the trailing edge panels 334FB, 334EB left-hand and/or 344FB, 344EB right-hand (Ref. AMM TASK 55-13-11-400-001).
C. Remove Locking Devices
(1) Remove the 98D27903500000 PIN-SIDE STICK LOCKING from the CAPT and F/O side stick controllers.
Subtask 55-16-48-942-051-A (1) Remove the 98D27903500000 PIN-SIDE STICK LOCKING from the CAPT and F/O side stick controllers.
CAUTION:
MAKE SURE THAT YOU REMOVE THE "COLLAR-ELEVATOR SERVO CONTROL SAFETY" BEFORE YOU PRESSURIZE THE ELEVATOR SERVO CONTROL. IF YOU DO NOT REMOVE THE COLLAR, YOU CAN CAUSE DAMAGE TO THE ELEVATOR SERVO CONTROL.
(2) Remove the 98D27309009003 COLLAR-DEPTH ACTUATOR or 98D27309009004 COLLAR-DEPTH ACTUATOR from the servocontrol elevator. D. Remove Ground Equipment
(1) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
(2) Remove the WARNING NOTICE(S).
(3) Remove the access platform(s).
Subtask 55-16-48-865-051-A (1) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
(2) Remove the WARNING NOTICE(S).
(3) Remove the access platform(s).
E. 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/ELAC1/NORM/SPLY | 15CE1 | B11 |
| 49VU | FLIGHT CONTROLS/THS/ACTR/MOT2 | 19CE2 | B09 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/ELAC1/NORM/SPLY | 15CE1 | B06 |
| 49VU | FLIGHT CONTROLS/THS/ACTR/MOT2 | 19CE2 | B04 |
| ** ON A/C ALL | |||
| 105VU | FLIGHT CONTROLS/ELAC2/STBY SPLY | 16CE2 | A02 |
| 105VU | FLT CTL/ELAC1/STBY SPLY | 16CE1 | A01 |
| 121VU | FLIGHT CONTROLS/THS ACTR/MOT3 | 19CE3 | Q17 |
| 121VU | FLIGHT CONTROLS/THS ACTR/MOT1 | 19CE1 | Q16 |
| 121VU | FLIGHT CONTROLS/ELAC2/NORM/SPLY | 15CE2 | R20 |
| 122VU | LIGHTING/LOGO/L | 2LY | V03 |
| 122VU | LIGHTING/LOGO/R | 1LY | V02 |
Elevator Support Strut