Removal of the LP Fuel Valve Actuator
TASK 28-24-51-000-001-A
Removal of the LP Fuel Valve Actuator
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 28-24-51-941-052-A
Subtask 28-24-51-020-050-A
[Rev.10 from 2021]
2026.04.02 07:02:37 UTC
Removal of the LP Fuel Valve Actuator
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 | AR | ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE |
| No specific | AR | CAP - BLANKING |
| No specific | AR | SAFETY BARRIER(S) |
| No specific | AR | SAFETY CLIP - CIRCUIT BREAKER |
| No specific | AR | WARNING NOTICE(S) |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| FOR [10QG] (ACTUATOR-LP FUEL VALVE, ENG 2) | |
| 622AT | |
| FOR [9QG] (ACTUATOR-LP FUEL VALVE, ENG 1) | |
| 522AT | |
| 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 27-80-00-866-004-A | Extending the Slats on the Ground |
| TASK 28-00-00-910-001-A | Fuel Safety Procedures |
| TASK 57-41-37-000-003-A | Removal of the Access Panel |
Subtask 28-24-51-941-052-A
A. Safety Precautions
(2) As necessary, use the applicable SAFETY BARRIERS, specified by the operator's instructions and your local regulations.
(3) Put a WARNING NOTICE(S) in position to tell persons not to operate the slats.
Subtask 28-24-51-860-051-A WARNING:
OBEY THE FUEL SAFETY PROCEDURES.
(1) You must obey the fuel safety procedures when you do work on the fuel system (Ref. AMM TASK 28-00-00-910-001). (2) As necessary, use the applicable SAFETY BARRIERS, specified by the operator's instructions and your local regulations.
(3) Put a WARNING NOTICE(S) in position to tell persons not to operate the slats.
B. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).
(2) Fully extend the slats (Ref. AMM TASK 27-80-00-866-004).
(3) Make sure that the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION is on the slat/flap control lever.
(4) The LP fuel valve can be OPEN or CLOSED.
(5) De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).
Subtask 28-24-51-865-050-A (1) Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).
(2) Fully extend the slats (Ref. AMM TASK 27-80-00-866-004).
(3) Make sure that the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION is on the slat/flap control lever.
(4) The LP fuel valve can be OPEN or CLOSED.
(5) De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).
C. Open, safety and tag this(these) circuit breaker(s):
Subtask 28-24-51-010-050-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| FOR FIN: 9QG (ACTUATORLP FUEL VALVE, ENG 1) | |||
| 49VU | FLIGHT CONTROLS/SLT/CTL AND MONG/SYS1 | 5CV | B06 |
| ** ON A/C ALL | |||
| 49VU | FUEL/LP VALVE/MOT1/ENG1 | 1QG | A08 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/SLT/CTL AND MONG/SYS1 | 5CV | B01 |
| ** ON A/C ALL | |||
| 121VU | FUEL/LP VALVE/MOT2/ENG1 | 3QG | M25 |
| 121VU | FLIGHT CONTROLS/SLT/CTL/SYS2 | 7CV | R21 |
| ** ON A/C NOT FOR ALL | |||
| FOR FIN: 10QG (ACTUATORLP FUEL VALVE, ENG 2) | |||
| 49VU | FLIGHT CONTROLS/SLT/CTL AND MONG/SYS1 | 5CV | B06 |
| ** ON A/C ALL | |||
| 49VU | FUEL/LP VALVE/MOT1/ENG2 | 2QG | A09 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/SLT/CTL AND MONG/SYS1 | 5CV | B01 |
| ** ON A/C ALL | |||
| 121VU | FUEL/LP VALVE/MOT2/ENG2 | 4QG | M26 |
| 121VU | FLIGHT CONTROLS/SLT/CTL/SYS2 | 7CV | R21 |
D. Get Access
(1) Put the ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE in position below the applicable zone 522(622).
(2) Remove the applicable access panel 522AT(622AT) (Ref. AMM TASK 57-41-37-000-003):
(a) FOR [9QG] (ACTUATOR-LP FUEL VALVE, ENG 1)
remove 522AT
(b) FOR [10QG] (ACTUATOR-LP FUEL VALVE, ENG 2)
remove 622AT.
4. Procedure(1) Put the ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE in position below the applicable zone 522(622).
(2) Remove the applicable access panel 522AT(622AT) (Ref. AMM TASK 57-41-37-000-003):
(a) FOR [9QG] (ACTUATOR-LP FUEL VALVE, ENG 1)
remove 522AT
(b) FOR [10QG] (ACTUATOR-LP FUEL VALVE, ENG 2)
remove 622AT.
Subtask 28-24-51-020-050-A
A. Removal of the LP Fuel Valve Actuator
(1) Disconnect the electrical connectors (1).
(2) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(3) Fully loosen the screw (7) and remove the V-clamp (3).
(4) Remove the actuator (2) from the LP fuel valve (5) and discard the O-ring (4).
(1) Disconnect the electrical connectors (1).
(2) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(3) Fully loosen the screw (7) and remove the V-clamp (3).
(4) Remove the actuator (2) from the LP fuel valve (5) and discard the O-ring (4).
LP Fuel Valve Actuator - LH Wing