Installation of the AFT Drain-Mast Pipe Heater-Elements

TASK 30-71-57-400-001-A
Installation of the AFT Drain-Mast Pipe Heater-Elements

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

FIN: 61DU ** ON A/C NOT FOR ALL
FIN: 62DU ** ON A/C NOT FOR ALL
FIN: 63DU ** ON A/C NOT FOR ALL
FIN: 64DU ** ON A/C NOT FOR ALL
FIN: 65DU ** ON A/C NOT FOR ALL

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

REFERENCE	QTY	DESIGNATION
No specific	1	ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE
No specific	1	ELEC CONTACTS INSERTION EXTRACTION TOOL M15570-20
No specific	AR	TIE WRAP(S)

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.05TAB1)	Adhesive Tape-- Glass Cloth -
(Material No.08BAA9)	Non Aqueous Cleaner-General - -
(Material No.14SBA1)	Textile-Lint free Cotton -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
162DW

D. 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 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 25-55-12-000-001-A	Removal of the Aft Cargo-Compartment Partition at FR65
TASK 25-55-12-400-001-A	Installation of the Aft Cargo-Compartment Partition at FR65
TASK 30-71-00-710-002-A	Operational Test of the Waste-Water Ice-Protection Heater-Elements
TASK 52-30-00-860-006-A	Open the Bulk Cargo-Compartment Door
Heater Elements

3. Job Set-up
Subtask 30-71-57-860-050-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) Make sure that the aircraft electrical circuits are energized (Ref. AMM TASK 24-41-00-861-002).
(2) Make sure that the bulk cargo-compartment door is open (Ref. AMM TASK 52-30-00-860-006).
(3) Make sure that the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE is in position below the bulk cargo-compartment door.
(4) Make sure that cargo-compartment light switch 18LU is set to ON.
(5) Make sure that rear-wall partition panel 162DW is removed (Ref. AMM TASK 25-55-12-000-001).

Subtask 30-71-57-865-054-A ** ON A/C NOT FOR ALL

B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
2001VU	POT/WASTE WIP-HEATER-CTL	32DW	D02
** ON A/C NOT FOR ALL
2001VU	WASTE WIP-HEATER-LINE	31DU	E04
** ON A/C NOT FOR ALL
2001VU	POT/WASTE WIP HEATER CTL	32DW	D02

Subtask 30-71-57-140-050-A ** ON A/C NOT FOR ALL

C. Preparation for Installation

WARNING: YOU MUST ALWAYS WEAR RUBBER GLOVES WHEN YOU DO THIS PROCEDURE.

(1) Clean the waste water line with Non Aqueous Cleaner-General - - (Material No.08BAA9) and a Textile-Lint free Cotton - (Material No.14SBA1) .
(2) Do an inspection of the component interfaces and the adjacent area.

4. Procedure
Subtask 30-71-57-420-050-A ** ON A/C NOT FOR ALL

A. Installation of a Heating Element (Example)
(1) Put the heater element (1) in position on the waste water tube (5).
(a) Do not bend the heater element in the Y-axis. The minimum bending radius in the X-axis is 25 mm (0.9843 in.).
(2) Install the Adhesive Tape-- Glass Cloth - (Material No.05TAB1) (4) in a ring-shape to attach the heater element (1) on the waste water tube (5).
(3) Make sure that the heater element (1) is correctly installed on the waste water tube (5).
(4) Safety both ends of the Adhesive Tape-- Glass Cloth - (Material No.05TAB1) with TIE WRAP(S) as an alternative to the shrinkable sleeve (2).
(5) Connect the electrical connections (3) with the ELEC CONTACTS INSERTION EXTRACTION TOOL M15570-20.
(6) Connect the electrical wires as identified during the removal procedure.
(7) If removed, install the related temperature sensor.
(8) Attach the identification and warning labels and the electrical wires of the heater element (1) with the cable ties.

Subtask 30-71-57-710-050-A ** ON A/C NOT FOR ALL

B. Do the operational test of the waste water ice-protection (Ref. AMM TASK 30-71-00-710-002).

5. Close-up
Subtask 30-71-57-410-050-A ** ON A/C NOT FOR ALL

A. Close Access
(1) Install rear-wall partition panel 162DW (Ref. AMM TASK 25-55-12-400-001).
(2) Set cargo-compartment light switch 18LU to OFF.
(3) Remove the access platform(s).
(4) Close the bulk cargo-compartment door (Ref. AMM TASK 52-30-00-860-006).

Subtask 30-71-57-862-050-A ** ON A/C NOT FOR ALL

B. De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).

[Rev.10 from 2021] 2026.04.01 00:32:12 UTC