DOC AIRBUS | AMM A320FInstallation of the Upper Starter Duct [CFMB]
TASK 80-13-43-400-041-A
Installation of the Upper Starter Duct
1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Referenced Information
3. Job Set-up
Subtask 80-13-43-860-050-A ** ON A/C NOT FOR ALL
Subtask 80-13-43-420-050-A ** ON A/C NOT FOR ALL
Subtask 80-13-43-410-050-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 13:15:18 UTC
Installation of the Upper Starter Duct
1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.CP8001) | lockwire 0.032 in. (0.8 mm) dia. |
| 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 |
Upper Starter Duct.Subtask 80-13-43-860-050-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
(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).
(3) On the AIR COND panel 30VU:
Subtask 80-13-43-010-051-A ** ON A/C NOT FOR ALL WARNING:
IF IT IS NECESSARY TO ENERGIZE THE AIRCRAFT FOR A MAINTENANCE WORK WHILE YOU DO THIS MAINTENANCE PROCEDURE, MAKE SURE THAT ONLY EXTERNAL POWER IS USED. THE USE OF APU OR ENGINE POWER CAN CAUSE PRESSURIZED AIR LEAKAGE IN THE PNEUMATIC SYSTEM, AND INJURY CAN OCCUR.
(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).
(3) On the AIR COND panel 30VU:
- make sure that the APU BLEED pushbutton switch is released (ON legend is off),
- make sure that a WARNING NOTICE(S) is in position to tell persons not to operate the pneumatic system.
- make sure that a WARNING NOTICE(S) is in position to tell persons not to pressurize the pneumatic system.
B. Get Access
(1) Make sure that the fan cowl doors are open: (Ref. AMM TASK 71-13-00-010-040)
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(2) Make sure that the ACCESS PLATFORM 1M(3 FT) is in position.
4. Procedure(1) Make sure that the fan cowl doors are open: (Ref. AMM TASK 71-13-00-010-040)
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(2) Make sure that the ACCESS PLATFORM 1M(3 FT) is in position.
Subtask 80-13-43-420-050-A ** ON A/C NOT FOR ALL
A. Install the upper starter duct.
(2) Put the upper starter duct (25) in position between the starter valve and the pylon duct. Install the couplings. Tighten the couplings sufficiently to attach and hold the upper starter duct.
(3) Put the links (35) in position on the two sides of the upper starter duct. Install the bolts (10), the washers (15), and the nuts (20).
Make sure that the washers are installed with the countersink against the bolt heads.
(4) Adjust the links (35), as required to avoid a preload of the duct and the links.
(5) TORQUE the nuts (20) to between 70 and 50 lbf.in (0.79 and 0.57 m.daN )
.
(6) Lock the links withCP8001 lockwire 0.032 in. (0.8 mm) dia.
(7) TORQUE the nuts on the couplings (5) and (30) as follows:
(a) TORQUE the coupling nuts to between 80 and 70 lbf.in (0.90 and 0.79 m.daN ).
(b) Lightly hit the perimeter of the coupling with a HAMMER - FIBER then torque the coupling nut again.
(c) Do the torque procedure two times, then torque the coupling nut again.
5. Close-upCAUTION:
MAKE SURE THAT THE V-CLAMP ATTACHMENTS CAN NOT TOUCH ENGINE COMPONENTS OR STRUCTURE, TO PREVENT DAMAGE.
(1) Remove the blanking plugs from the pylon duct, the starter valve, and the two ends of the upper starter duct (25). (2) Put the upper starter duct (25) in position between the starter valve and the pylon duct. Install the couplings. Tighten the couplings sufficiently to attach and hold the upper starter duct.
(3) Put the links (35) in position on the two sides of the upper starter duct. Install the bolts (10), the washers (15), and the nuts (20).
Make sure that the washers are installed with the countersink against the bolt heads.
(4) Adjust the links (35), as required to avoid a preload of the duct and the links.
(5) TORQUE the nuts (20) to between 70 and 50 lbf.in (0.79 and 0.57 m.daN )
. (6) Lock the links with
(7) TORQUE the nuts on the couplings (5) and (30) as follows:
(a) TORQUE the coupling nuts to between 80 and 70 lbf.in (0.90 and 0.79 m.daN )
. (b) Lightly hit the perimeter of the coupling with a HAMMER - FIBER then torque the coupling nut again.
(c) Do the torque procedure two times, then torque the coupling nut again.
Subtask 80-13-43-410-050-A ** ON A/C NOT FOR ALL
A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the fan cowl doors: (Ref. AMM TASK 71-13-00-410-040)
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(3) Remove the access platform(s).
(4) Remove the WARNING NOTICE(S).
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the fan cowl doors: (Ref. AMM TASK 71-13-00-410-040)
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(3) Remove the access platform(s).
(4) Remove the WARNING NOTICE(S).