DOC AIRBUS | AMM A320FInstallation of the Inner Line Heater
TASK 30-73-54-400-001-A
Installation of the Inner Line Heater
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Expendable Parts
E. Referenced Information
3. Job Set-up
Subtask 30-73-54-860-050-A ** ON A/C NOT FOR ALL
Subtask 30-73-54-420-050-A ** ON A/C NOT FOR ALL
Subtask 30-73-54-865-052-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 00:32:55 UTC
Installation of the Inner Line Heater
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
FIN: 25DW ** ON A/C NOT FOR ALL
1. Reason for the JobSelf explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | AR | ACCESS PLATFORM 2M (6 FT) |
| No specific | AR | ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE |
| No specific | AR | SPHERICAL MILL |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.06AAB1) | Polysulfide Sealant-General Purpose Fillet - |
| (Material No.06ABB1) | Polysulfide Sealant-Fuel Tank Fillet - |
| (Material No.14DBB1) | Release Agent-- Liquid Wax - |
| No specific | adhesive tape (4) |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 131GW, 812, 825 |
| FIG.ITEM | DESIGNATION | IPC-CSN |
|---|---|---|
| 12 | HALF BOX | AIPC 38-12-81-01-320 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 12-15-38-613-001-A | Fill the Potable Water Tank System (Aircraft Electrical Power Available) |
| TASK 12-15-38-613-002-A | Fill the Potable Water Tank System (Aircraft Electrical Power not Available) |
| TASK 12-24-38-680-001-A | Draining of the Potable Water System (with Electrical Power) |
| TASK 12-24-38-680-002-A | Draining of the Potable Water System (without Electrical Power) |
| TASK 24-42-00-861-001-A | Energize the Ground Service Network from the External Power |
| TASK 24-42-00-862-001-A | De-energize the Ground Service Network Supplied from the External Power |
| TASK 30-73-00-720-001-A | Functional Test of the Potable Water Ice-Protection |
| TASK 52-30-00-860-001-A | Open the FWD or Aft Cargo-Compartment Door with the Yellow Electric Pump |
| TASK 52-30-00-860-002-A | Close the FWD or Aft Cargo-Compartment Door with the Yellow Electric Pump |
Heater-Inner LineSubtask 30-73-54-860-050-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
(1) Make sure that the potable water system is drained (Ref. AMM TASK 12-24-38-680-001) or (Ref. AMM TASK 12-24-38-680-002).
(2) Make sure that the ground service network is energized (Ref. AMM TASK 24-42-00-861-001).
Subtask 30-73-54-010-052-A ** ON A/C NOT FOR ALL (1) Make sure that the potable water system is drained (Ref. AMM TASK 12-24-38-680-001) or (Ref. AMM TASK 12-24-38-680-002).
(2) Make sure that the ground service network is energized (Ref. AMM TASK 24-42-00-861-001).
B. Get Access
(1) Make sure that the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE is in position at the access door 812 of the avionics compartment.
(2) Make sure that the access door 812 is open.
(3) Make sure that the ACCESS PLATFORM 2M (6 FT) is in position at the FWD cargo-compartment door 825.
(4) Make sure that the FWD cargo-compartment door 825 is open (Ref. AMM TASK 52-30-00-860-001).
(5) Make sure that the CARGO COMPT LIGHT switch 6LU is set to ON position.
(6) In the forward cargo compartment, make sure that the sidewall panel 131GW is removed.
Subtask 30-73-54-865-051-A ** ON A/C NOT FOR ALL (1) Make sure that the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE is in position at the access door 812 of the avionics compartment.
(2) Make sure that the access door 812 is open.
(3) Make sure that the ACCESS PLATFORM 2M (6 FT) is in position at the FWD cargo-compartment door 825.
(4) Make sure that the FWD cargo-compartment door 825 is open (Ref. AMM TASK 52-30-00-860-001).
(5) Make sure that the CARGO COMPT LIGHT switch 6LU is set to ON position.
(6) In the forward cargo compartment, make sure that the sidewall panel 131GW is removed.
C. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
4. Procedure| PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 2000VU | POT/WASTE WIP-HEATER-LINE | 21DW | A03 |
| 2000VU | POT/WASTE WIP-HEATER-LINE | 1DW | A02 |
| 2000VU | POT/WASTE WIP-HEATER-CTL | 2DW | A01 |
| ** ON A/C NOT FOR ALL | |||
| 2000VU | POT WIP-HEATER-LINE | 21DW | A03 |
| 2000VU | POT WIP-HEATER-LINE | 1DW | A02 |
| 2000VU | POT WIP-HEATER-CTL | 2DW | A01 |
Subtask 30-73-54-420-050-A ** ON A/C NOT FOR ALL
A. Installation of the Inner Line Heater
(1) Install the inner line heater (2) in the pipe (6).
(2) Put the tee (10) in position.
(4) Install the inner line heater (2) in the pipe (11).
(5) Connect the tee (10) to the pipes (9), (11) and (12).
(6) Apply Release Agent-- Liquid Wax - (Material No.14DBB1) on the pipe end bushings (9), (11) and (12).
(7) Apply Polysulfide Sealant-Fuel Tank Fillet - (Material No.06ABB1) on the seal of the half box assembly (8)
(8) Install the box (8).
(9) Install the clamps (7).
(10) Tighten the nut (3).
(11) Install the sleeve (5) around the pipe (6).
(12) Hold the sleeve (5) on the pipe (6) with adhesive tape (4).
(13) Remove the blanking caps and connect the electrical connector (1) to the inner line heater (2).
Subtask 30-73-54-420-050-B ** ON A/C NOT FOR ALL (1) Install the inner line heater (2) in the pipe (6).
(2) Put the tee (10) in position.
NOTE: To prevent scratches of the inner line heater during installation, make sure that there is no sharp edges in the tee.
If necessary, chamfer the sharp edges of the tee with a SPHERICAL MILL.
Be careful not to cause damage to the conical intake of the tee.
(3) Install the inner line heater (2) in the tee (10). If necessary, chamfer the sharp edges of the tee with a SPHERICAL MILL.
Be careful not to cause damage to the conical intake of the tee.
(4) Install the inner line heater (2) in the pipe (11).
(5) Connect the tee (10) to the pipes (9), (11) and (12).
(6) Apply Release Agent-- Liquid Wax - (Material No.14DBB1) on the pipe end bushings (9), (11) and (12).
(7) Apply Polysulfide Sealant-Fuel Tank Fillet - (Material No.06ABB1) on the seal of the half box assembly (8)
(8) Install the box (8).
(9) Install the clamps (7).
(10) Tighten the nut (3).
(11) Install the sleeve (5) around the pipe (6).
(12) Hold the sleeve (5) on the pipe (6) with adhesive tape (4).
(13) Remove the blanking caps and connect the electrical connector (1) to the inner line heater (2).
A. Installation of the Inner Line Heater
(1) Install the inner line heater (2) in the pipe (6).
(2) To prevent scratches to the inner line heater during installation, make sure that there are no sharp edges in the tee.
(a) If necessary, chamfer the sharp edges of the tee with a SPHERICAL MILL. Make sure that you do not cause damage to the conical intake of the tee.
(3) Put the tee (8) in position.
(4) Install the inner line heater (2) in the tee (8).
(5) Install the inner line heater (2) in the pipe (9).
(6) Connect the tee (8) to the pipes (7), (9) and (10).
(7) Apply Release Agent-- Liquid Wax - (Material No.14DBB1) on the end bushings of the pipes (7), (9) and (10).
(8) Apply Polysulfide Sealant-General Purpose Fillet - (Material No.06AAB1) between the two half shelves of the new AIPC 38-12-81-01-320 HALF BOX (12).
(9) Install the half box (12).
(10) Let the Polysulfide Sealant-General Purpose Fillet - (Material No.06AAB1) cure for 12 hours.
(11) Install the clamps (11).
(12) Tighten the nut (3).
(13) Install the sleeve (5) around the pipe (6).
(14) Attach the sleeve (5) on the pipe (6) with adhesive tape (4).
(15) Remove the blanking caps and connect the electrical connector (1) to the inner line heater (2).
Subtask 30-73-54-613-050-A ** ON A/C NOT FOR ALL (1) Install the inner line heater (2) in the pipe (6).
(2) To prevent scratches to the inner line heater during installation, make sure that there are no sharp edges in the tee.
(a) If necessary, chamfer the sharp edges of the tee with a SPHERICAL MILL. Make sure that you do not cause damage to the conical intake of the tee.
(3) Put the tee (8) in position.
(4) Install the inner line heater (2) in the tee (8).
(5) Install the inner line heater (2) in the pipe (9).
(6) Connect the tee (8) to the pipes (7), (9) and (10).
(7) Apply Release Agent-- Liquid Wax - (Material No.14DBB1) on the end bushings of the pipes (7), (9) and (10).
(8) Apply Polysulfide Sealant-General Purpose Fillet - (Material No.06AAB1) between the two half shelves of the new AIPC 38-12-81-01-320 HALF BOX (12).
(9) Install the half box (12).
(10) Let the Polysulfide Sealant-General Purpose Fillet - (Material No.06AAB1) cure for 12 hours.
(11) Install the clamps (11).
(12) Tighten the nut (3).
(13) Install the sleeve (5) around the pipe (6).
(14) Attach the sleeve (5) on the pipe (6) with adhesive tape (4).
(15) Remove the blanking caps and connect the electrical connector (1) to the inner line heater (2).
B. Do a servicing of the potable water tank (Ref. AMM TASK 12-15-38-613-001) or (Ref. AMM TASK 12-15-38-613-002).
5. Close-upSubtask 30-73-54-865-052-A ** ON A/C NOT FOR ALL
A. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 30-73-54-720-050-A ** ON A/C NOT FOR ALL Subtask 30-73-54-410-050-A ** ON A/C NOT FOR ALL | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 2000VU | POT/WASTE WIP-HEATER-LINE | 21DW | A03 |
| 2000VU | POT/WASTE WIP-HEATER-LINE | 1DW | A02 |
| 2000VU | POT/WASTE WIP-HEATER-CTL | 2DW | A01 |
| ** ON A/C NOT FOR ALL | |||
| 2000VU | POT WIP-HEATER-LINE | 21DW | A03 |
| 2000VU | POT WIP-HEATER-LINE | 1DW | A02 |
| 2000VU | POT WIP-HEATER-CTL | 2DW | A01 |
C. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the sidewall panel 131GW.
(3) Close the FWD cargo-compartment door 825 (Ref. AMM TASK 52-30-00-860-002).
(4) Close the access door 812.
(5) Remove the access platform(s).
Subtask 30-73-54-862-051-A ** ON A/C NOT FOR ALL (1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the sidewall panel 131GW.
(3) Close the FWD cargo-compartment door 825 (Ref. AMM TASK 52-30-00-860-002).
(4) Close the access door 812.
(5) Remove the access platform(s).