Operational Check of Leak Monitor for Evidence of Fuel Leakage and Correct Closure of the Valve

TASK 28-11-00-200-002-A
Operational Check of Leak Monitor for Evidence of Fuel Leakage and Correct Closure of the Valve

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.

ZONE: 190

1. Reason for the Job
Refer to the MPD TASK: 281100-02
OPERATIONAL CHECK OF LEAK MONITOR FOR EVIDENCE OF FUEL LEAKAGE AND CORRECT CLOSURE OF THE VALVE
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	SAFETY BARRIER(S)
No specific	AR	WARNING NOTICE(S)
98A28104000000	1	PURGER - WATER DRAIN

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
190	BELLY FAIR, AIR CONDITIONING & HYD COMPT

C. Referenced Information

REFERENCE	DESIGNATION
TASK 12-32-28-281-001-A	Drain Water Content
TASK 28-00-00-910-001-A	Fuel Safety Procedures
Tank Leak Monitor - Draining

3. Job Set-up
Subtask 28-11-00-941-077-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 a WARNING NOTICE(S) on the slat/flap control lever to tell persons not to operate the flight controls.
(3) Put the SAFETY BARRIER(S) in position.

4. Procedure
Subtask 28-11-00-220-050-A

A. Operational Check of Leak Monitor for Evidence of Fuel Leakage and Correct Closure of the Valve
(1) Put the 98A28104000000 PURGER - WATER DRAIN in position below the tank leak monitor.
(2) Push the probe of the 98A28104000000 PURGER - WATER DRAIN into the tank leak monitor and drain the tank leak monitor contents.
(3) Remove the 98A28104000000 PURGER - WATER DRAIN from the tank leak monitor.
(4) Do a visual check to make sure that the tank leak-monitor valve is in the closed position.
(5) Examine the contents of the bottle for signs of fuel and/or water (Ref. AMM TASK 12-32-28-281-001). No fuel tank leakage is permitted.

NOTE: Signs of fuel show that there is a fuel tank leak.

5. Close-up
Subtask 28-11-00-942-052-A

A. 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 WARNING NOTICE(S).
(4) Remove the ground support and maintenance equipment, the special and standard tools and all other items.

[Rev.10 from 2021] 2026.04.02 06:17:02 UTC