DOC AIRBUS | AMM A320FInstallation of the Reservoir to Manifold Pressurized Air Drain Tube [CFMB]
TASK 71-73-49-400-002-B
Installation of the Reservoir to Manifold Pressurized Air Drain Tube
1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Work Zones and Access Panels
C. Referenced Information
3. Job Set-up
Subtask 71-73-49-860-061-A ** ON A/C NOT FOR ALL
Subtask 71-73-49-420-063-A ** ON A/C NOT FOR ALL
Subtask 71-73-49-410-064-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 02:27:37 UTC
Installation of the Reservoir to Manifold Pressurized Air Drain Tube
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 | WARNING NOTICE(S) |
| No specific | Torque wrench: range to between 250 and 200 lbf.in (2.83 and 2.26 m.daN )  |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| FOR [1000EM1] (ENGINE-1) | |
| 437AL, 438AR | |
| FOR [1000EM2] (ENGINE-2) | |
| 447AL, 448AR | |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 71-13-00-010-040-B | Opening of the Fan Cowl Doors |
| TASK 71-13-00-410-040-B | Closing of the Fan Cowl Doors |
Reservoir to Manifold Pressurized Air Drain TubeSubtask 71-73-49-860-061-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
(1) On the center pedestal, on the ENG panel 115VU, make sure that a WARNING NOTICE(S) is in position to tell persons not to start the engine.
(2) On the overhead maintenance panel 50VU, make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off. Make sure that a WARNING NOTICE(S) is in position to tell persons not to energize the FADEC 1(2).
Subtask 71-73-49-010-079-A ** ON A/C NOT FOR ALL (1) On the center pedestal, on the ENG panel 115VU, make sure that a WARNING NOTICE(S) is in position to tell persons not to start the engine.
(2) On the overhead maintenance panel 50VU, make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off. Make sure that a WARNING NOTICE(S) is in position to tell persons not to energize the FADEC 1(2).
B. Make sure that the fan cowl doors are open: (Ref. AMM TASK 71-13-00-010-040)
(1) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(2) FOR [1000EM2] (ENGINE-2)
447AL 448AR
4. Procedure(1) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(2) FOR [1000EM2] (ENGINE-2)
447AL 448AR
Subtask 71-73-49-420-063-A ** ON A/C NOT FOR ALL
A. Installation of the Reservoir to Manifold Pressurized Air Drain Tube
(1) Remove the protective covers from the manifold module, the drain reservoir, and the drain tube (5).
(2) Connect the drain tube (5) to the drain reservoir. Do not torque the coupling nut at this time.
(3) Connect the drain tube (5) to the manifold module. Do not torque the coupling nut at this time.
(4) Make sure that the drain tube (5) is aligned correctly on the engine.
(5) Torque the drain tube coupling nut.
.
5. Close-up(1) Remove the protective covers from the manifold module, the drain reservoir, and the drain tube (5).
(2) Connect the drain tube (5) to the drain reservoir. Do not torque the coupling nut at this time.
(3) Connect the drain tube (5) to the manifold module. Do not torque the coupling nut at this time.
(4) Make sure that the drain tube (5) is aligned correctly on the engine.
(5) Torque the drain tube coupling nut.
CAUTION:
USE A SECOND WRENCH TO HOLD THE FITTINGS WHEN YOU LOOSEN/TIGHTEN THE TUBE COUPLING NUTS. THIS PREVENTS DAMAGE TO THE TUBES.
(a) TORQUE the drain tube (5) coupling nuts to between 250 and 200 lbf.in (2.83 and 2.26 m.daN ) . Subtask 71-73-49-410-064-A ** ON A/C NOT FOR ALL