Reactivation of the APU LP Valve Indication

TASK 28-40-00-440-001-A
Reactivation of the APU LP Valve Indication

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.

MOVEMENT OF COMPONENTS CAN KILL OR CAUSE INJURY TO PERSONS AND/OR CAN CAUSE DAMAGE TO THE EQUIPMENT.

1. Reason for the Job
MMEL 28-07-04-02A
APU LP FUEL VALVE INDICATION ON THE FUEL SD PAGE
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	SAFETY BARRIER(S)

B. Referenced Information

REFERENCE	DESIGNATION
TASK 28-00-00-910-001-A	Fuel Safety Procedures
TASK 28-29-00-440-002-A	APU LP VALVE - Reactivation
TASK 32-12-00-010-001-A	Open the Main Gear Doors for Access
TASK 32-12-00-410-001-A	Close the Main Gear Doors after Access

3. Job Set-up
Subtask 28-40-00-941-057-A

A. Safety Precautions

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) Put the SAFETY BARRIER(S) in position.

Subtask 28-40-00-860-050-A

B. Aircraft Maintenance Configuration
(1) Open the MLG doors (Ref. AMM TASK 32-12-00-010-001).
(2) Make sure that the 460005835 SLEEVE - GROUND LOCK is installed on the applicable MLG door actuating-cylinder.

4. Procedure
Subtask 28-40-00-440-050-A

A. Reactivation of the APU LP Valve
(1) Do the reactivation procedure of the APU LP valve (Ref. AMM TASK 28-29-00-440-002).

5. Close-up
Subtask 28-40-00-410-053-A

A. Close Access
(1) Close the MLG doors (Ref. AMM TASK 32-12-00-410-001).

Subtask 28-40-00-942-057-A

B. Removal of Equipment
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the SAFETY BARRIERS.
(3) Remove the access platform(s).
(4) Remove the WARNING NOTICE(S).
(5) Remove the ground support and maintenance equipment, the special and standard tools and all other items.

[Rev.10 from 2021] 2026.04.02 06:18:03 UTC