Removal of the Fuel Drain Line

TASK 28-20-00-000-801-A
Removal of the Fuel Drain Line

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.

WARNING: BE CAREFUL NOT TO GET AIRCRAFT FUEL IN YOUR MOUTH OR IN YOUR EYES. IF YOU GET FUEL ON YOUR SKIN OR ON YOUR CLOTHES, FLUSH IT IMMEDIATELY WITH WATER. IF NECESSARY, GET MEDICAL HELP. AIRCRAFT FUEL IS POISONOUS.

WARNING: YOU MUST USE THE NECESSARY PRECAUTIONS TO PREVENT INJURY FROM HEAT. THE LOCATION FOR THIS TASK CAN BE VERY HOT.

ZONE: 410
ZONE: 420
ZONE: 470
ZONE: 480

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE
No specific	AR	PLUG - BLANKING
No specific	AR	SAFETY BARRIER(S)
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER
No specific	AR	WARNING NOTICE(S)

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
410	ENG 1 PYLON BOX AND FORWARD FAIRING
420	ENG 2 PYLON BOX AND FORWARD FAIRING
470	ENGINE 1 AFT PYLON
480	ENGINE 2 AFT PYLON
413DL, 413ET, 415AL, 415AR, 423ET, 425AL, 425AR, 451AL, 451DL, 451EL, 461AL, 461DL, 461EL, 471AL, 481AL

C. Referenced Information

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 28-00-00-910-001-A	Fuel Safety Procedures
TASK 31-60-00-860-001-A	EIS Start Procedure
TASK 54-51-21-000-802-A	Removal of the Pylon Lateral Access-Doors
TASK 54-53-11-000-804-A	Removal of the Pylon-to-Wing Access Panels and Doors
TASK 78-30-00-040-805-A	Deactivation of the Thrust Reverser System for Ground Maintenance
TASK 78-36-00-010-802-A	Opening of the Thrust Reverser Cowl-Doors
Fuel Drain Line - Location and Detail

3. Job Set-up
Subtask 28-20-00-941-053-A ** ON A/C NOT FOR ALL

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) As necessary, use the applicable SAFETY BARRIERS, specified by the operator's instructions and your local regulations.

Subtask 28-20-00-860-053-B ** ON A/C NOT FOR ALL

B. Aircraft Maintenance Configuration
(1) Deactivate the thrust reverser system (Ref. AMM TASK 78-30-00-040-805).
(2) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) P/BSW is off.
(3) Put a WARNING NOTICE(S) in position to tell persons not to energize the FADEC 1(2).
(4) Use external power to energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).
(5) Do the EIS start procedure (ECAM only) (Ref. AMM TASK 31-60-00-860-001), then:

On the ECAM control panel (CP), push in the FUEL P/BSW
Make sure that the engine LP valves are shown closed (amber cross-line) on the ECAM lower display unit (DU).

Subtask 28-20-00-865-052-A ** ON A/C NOT FOR ALL

C. Open, safety and tag this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	FUEL/LP VALVE/MOT1/ENG2	2QG	A09
49VU	FUEL/LP VALVE/MOT1/ENG1	1QG	A08
121VU	FUEL/LP VALVE/MOT2/ENG2	4QG	M26
121VU	FUEL/LP VALVE/MOT2/ENG1	3QG	M25

Subtask 28-20-00-010-051-B ** ON A/C NOT FOR ALL

D. Get Access
(1) Put an ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position:
(a) For the left pylon at the zone 410 and 470.
(b) For the right pylon at the zone 420 and 480.
(2) Remove the applicable access panels:
(a) For the left pylon:

413DL, 413ET and 471AL (Ref. AMM TASK 54-53-11-000-804).
415AL and 415AR (Ref. AMM TASK 54-51-21-000-802).

(b) For the right pylon:

423ET and 481AL (Ref. AMM TASK 54-53-11-000-804).
425AL and 425AR (Ref. AMM TASK 54-51-21-000-802).

(3) Open the thrust reverser cowl-doors:
(a) For the left nacelle:

451AL, 451DL and 451EL (Ref. AMM TASK 78-36-00-010-802).

(b) For the right nacelle:

461AL, 461DL and 461EL (Ref. AMM TASK 78-36-00-010-802).

4. Procedure
Subtask 28-20-00-020-051-B ** ON A/C NOT FOR ALL

A. Removal of the Fuel Drain Line
(1) To remove the flexible hose assembly (1):
(a) Disconnect the flexible hose assembly (1) from the main fuel-feed line.
(b) Hold and carefully disconnect the flexible hose assembly (1) from the pipe assembly (2).
(c) Carefully remove the flexible hose assembly (1).
(2) To remove the pipe assembly (2):
(a) Remove the bolts (3) and the washers (4) from the pipe assembly (2).
(b) Disconnect the pipe assembly (2) from the union (5).
(c) Carefully remove the pipe assembly (2).
(3) Do the steps that follow to remove the flexible hose assembly (7):
(a) Disconnect the flexible hose assembly (7) from the main fuel-feed line.
(b) Hold and carefully disconnect the flexible hose assembly (7) from the union (6).
(c) Carefully remove the flexible hose assembly (7).
(4) Put the PLUG-BLANKING in each disconnected line end.

[Rev.10 from 2021] 2026.04.02 06:58:03 UTC