Removal of the Artificial Feel Unlocking Solenoid
TASK 27-23-17-000-001-A
Removal of the Artificial Feel Unlocking Solenoid
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 27-23-17-861-050-A Subtask 27-23-17-865-053-A
Subtask 27-23-17-020-050-A
[Rev.10 from 2021]
2026.03.31 23:49:07 UTC
Removal of the Artificial Feel Unlocking Solenoid
WARNING:
PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU START A TASK ON OR NEAR:
1. Reason for the Job- THE FLIGHT CONTROLS
- THE FLIGHT CONTROL SURFACES
- THE LANDING GEAR AND THE RELATED DOORS
- COMPONENTS THAT MOVE.
Self 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 | CAP - BLANKING |
| No specific | AR | SAFETY CLIP - CIRCUIT BREAKER |
| No specific | AR | WARNING NOTICE(S) |
| 98D27207547000 | 1 | PIN-RIGGING |
| 98D27207548000 | 1 | PIN-RIGGING |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 325 | VERTICAL STABILIZER TRAILING EDGE |
| 312AR, 325AL, 325BL |
| 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 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 29-10-00-864-003-A | Depressurize the Blue Hydraulic System |
| 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 |
Subtask 27-23-17-861-050-A Subtask 27-23-17-865-053-A
B. Make sure that this(these) circuit breaker(s) is(are) closed:
Subtask 27-23-17-860-051-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 |
C. Aircraft Maintenance Configuration
(2) Put the rudder pedals in the neutral position.
(3) On the center pedestal, on the panel 110VU, make sure that the RUD TRIM indicator shows 0.
(4) On the overhead panel 23VU, release the FLT CTL/FAC 1 pushbutton switch. The OFF legend comes on.
(5) On the overhead panel 24VU, release the FLT CTL/FAC 2 pushbutton switch. The OFF legend comes on.
(6) Put WARNING NOTICE(S) in the flight compartment to tell persons not to operate the flight controls.
(7) Depressurize the Blue hydraulic system (Ref. AMM TASK 29-10-00-864-003) .
Subtask 27-23-17-865-050-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) Pressurize the Blue hydraulic system with the electric pump. (Ref. AMM TASK 29-10-00-863-003)(2) Put the rudder pedals in the neutral position.
(3) On the center pedestal, on the panel 110VU, make sure that the RUD TRIM indicator shows 0.
(4) On the overhead panel 23VU, release the FLT CTL/FAC 1 pushbutton switch. The OFF legend comes on.
(5) On the overhead panel 24VU, release the FLT CTL/FAC 2 pushbutton switch. The OFF legend comes on.
(6) Put WARNING NOTICE(S) in the flight compartment to tell persons not to operate the flight controls.
(7) Depressurize the Blue hydraulic system (Ref. AMM TASK 29-10-00-864-003) .
D. Open, safety and tag this(these) circuit breaker(s):
Subtask 27-23-17-860-050-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 |
E. Aircraft Maintenance Configuration
(1) Make sure that the hydraulic systems are depressurized and put them in the maintenance configuration
(Ref. AMM TASK 29-00-00-864-001)
(2) De-energize the aircraft electrical circuits. (Ref. AMM TASK 24-41-00-862-002)
(3) Put WARNING NOTICE(S) in position to tell persons not to operate the Green, the Yellow and the Blue hydraulic systems.
Subtask 27-23-17-010-050-B (1) Make sure that the hydraulic systems are depressurized and put them in the maintenance configuration
(Ref. AMM TASK 29-00-00-864-001)
(2) De-energize the aircraft electrical circuits. (Ref. AMM TASK 24-41-00-862-002)
(3) Put WARNING NOTICE(S) in position to tell persons not to operate the Green, the Yellow and the Blue hydraulic systems.
F. 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 panel 325BL at the trailing edge of the vertical stabilizer (1) (Ref. AMM TASK 55-33-13-010-002).
(5) Remove the rudder fairing 325AL (Ref. AMM TASK 53-55-12-000-001).
Subtask 27-23-17-480-050-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 panel 325BL at the trailing edge of the vertical stabilizer (1) (Ref. AMM TASK 55-33-13-010-002).
(5) Remove the rudder fairing 325AL (Ref. AMM TASK 53-55-12-000-001).
G. Installation of the Rigging Pins
(1) Put the 98D27207547000 PIN-RIGGING (51) in the rudder cable quadrant.
(2) Put the 98D27207548000 PIN-RIGGING (50) in the mixer of the artifical feel unit.
4. Procedure(1) Put the 98D27207547000 PIN-RIGGING (51) in the rudder cable quadrant.
(2) Put the 98D27207548000 PIN-RIGGING (50) in the mixer of the artifical feel unit.
Subtask 27-23-17-020-050-A
A. Removal of the Artificial-Feel Unlocking-Solenoid 16CA
(1) Disconnect the electrical connector (26) from the receptacle (25) of the solenoid 16CA (3).
(3) Disconnect the lever arm (11) from the artificial feel unit (4).
(a) Remove and discard the cotter pin (14).
(b) Remove the nut (13), the washers (12), (33), the bush (32) and the bolt (9).
(c) Move the shaft (31) of the artificial feel unit (4) away from the lever arm (11).
(e) Remove the bush (10) from the lever arm (11).
(4) Disconnect the forked lever (17) of the artificial feel unit (4) from the solenoid 16CA (3).
(a) Remove the screws (7) and the washers (8) from the cover (6).
(b) Remove the cover (6) from the artificial feel unit (4).
(c) Remove and discard the cotter pin (30).
(d) Remove the nut (29), the washer (28) and the bolt (15).
(5) Remove the solenoid 16CA (3) from the artificial feel unit (4).
(a) Support the solenoid (3).
(b) Remove the screws (22) and the washers (23).
(c) Move the eye-end (18) of the solenoid (3) away from the forked lever (17) of the artificial feel unit (4).
(d) Remove the bush (16) from the forked lever (17).
(e) Remove the solenoid (3).
(6) Remove the eye-end (18) of the solenoid (3) from the screw spindle (21).
(b) Hold the screw spindle (21) and turn the eye-end (18) in the counter-clockwise direction to release it.
(c) Remove and retain the eye-end (18).
(d) Remove and discard the shim washer (19) and the securing plate (20).
(1) Disconnect the electrical connector (26) from the receptacle (25) of the solenoid 16CA (3).
NOTE: Do not disconnect the bonding strap (27) from the electrical connector (26) unless a repair or a new installation is necessary.
(2) Put the CAP - BLANKING on the electrical connector (26) and the receptacle (25). (3) Disconnect the lever arm (11) from the artificial feel unit (4).
(a) Remove and discard the cotter pin (14).
(b) Remove the nut (13), the washers (12), (33), the bush (32) and the bolt (9).
(c) Move the shaft (31) of the artificial feel unit (4) away from the lever arm (11).
NOTE: Let the artificial feel unit (4) move at the universal joint (5) until:
(d) Support the artificial feel unit (4). - The cover (6) is away from the lever arm (11).
(e) Remove the bush (10) from the lever arm (11).
(4) Disconnect the forked lever (17) of the artificial feel unit (4) from the solenoid 16CA (3).
(a) Remove the screws (7) and the washers (8) from the cover (6).
(b) Remove the cover (6) from the artificial feel unit (4).
(c) Remove and discard the cotter pin (30).
(d) Remove the nut (29), the washer (28) and the bolt (15).
(5) Remove the solenoid 16CA (3) from the artificial feel unit (4).
(a) Support the solenoid (3).
(b) Remove the screws (22) and the washers (23).
(c) Move the eye-end (18) of the solenoid (3) away from the forked lever (17) of the artificial feel unit (4).
(d) Remove the bush (16) from the forked lever (17).
(e) Remove the solenoid (3).
(6) Remove the eye-end (18) of the solenoid (3) from the screw spindle (21).
CAUTION:
BE CAREFUL WHEN YOU REMOVE THE PARTS THAT FOLLOW:
(a) Straighten the tab of the securing plate (20) to release the eye-end (18). - THE EYE END
- THE SHIM WASHER
- THE SECURING PLATE
- THE SCREW SPINDLE.
(b) Hold the screw spindle (21) and turn the eye-end (18) in the counter-clockwise direction to release it.
(c) Remove and retain the eye-end (18).
(d) Remove and discard the shim washer (19) and the securing plate (20).
Location of Rigging Pins