DOC AIRBUS | AMM A320FInstallation of the Ring Half Flowpath Fairing [CFML]
TASK 72-21-03-400-801-A
Installation of the Ring Half Flowpath Fairing
This task gives the procedure for the installation of the two sectors of the ring half flowpath fairing.
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 72-21-03-941-052-A
Subtask 72-21-03-420-050-A
Subtask 72-21-03-410-050-A
[Rev.10 from 2021]
2026.04.01 02:51:32 UTC
Installation of the Ring Half Flowpath Fairing
WARNING:
BE CAREFUL WHEN YOU DO WORK ON THE ENGINE PARTS AFTER THE ENGINE SHUTDOWN. USE APPLICABLE THERMAL GLOVES. THE ENGINE PARTS CAN STAY HOT FOR ONE HOUR AFTER SHUTDOWN AND CAN BURN YOU.
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
1. Reason for the JobThis task gives the procedure for the installation of the two sectors of the ring half flowpath fairing.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | ACCESS PLATFORM 1M(3 FT) |
| No specific | AR | WARNING NOTICE(S) |
| No specific | Torque wrench: range to between 65.1 and 58.9 lbf.in (0.74 and 0.67 m.daN )  |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.CP2101) | graphite grease |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1) | |
| 437AL, 438AR | |
| FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2) | |
| 447AL, 448AR | |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 71-13-00-010-803-A | Opening of the Fan Cowl Doors |
| TASK 71-13-00-410-803-A | Closing of the Fan Cowl Doors |
| TASK 72-21-20-400-801-A | Installation of the Fan Blades |
| TASK 72-21-40-400-801-A | Installation of the Front Spinner |
Ring Half Flow Path FairingSubtask 72-21-03-941-052-A
A. Safety Precautions
(1) On the center pedestal, on ENG panel 115VU:
(a) Make sure that the ENG/MODE selector switch is in the NORM position.
(b) Make sure that the ENG/MASTER 1(2) control switch was in the OFF position not less than five minutes before you do this procedure.
(c) Make sure that the WARNING NOTICE(S) are in position to tell persons not to operate:
(a) Make sure that the ON legend of the FADEC GND PWR/1(2) pushbutton switch is off.
(b) Make sure that the WARNING NOTICE(S) is in position to tell persons not to energize FADEC 1(2).
Subtask 72-21-03-010-051-A (1) On the center pedestal, on ENG panel 115VU:
(a) Make sure that the ENG/MODE selector switch is in the NORM position.
(b) Make sure that the ENG/MASTER 1(2) control switch was in the OFF position not less than five minutes before you do this procedure.
(c) Make sure that the WARNING NOTICE(S) are in position to tell persons not to operate:
- The ENG/MODE selector switch, and
- The ENG/MASTER 1(2) control switch.
(a) Make sure that the ON legend of the FADEC GND PWR/1(2) pushbutton switch is off.
(b) Make sure that the WARNING NOTICE(S) is in position to tell persons not to energize FADEC 1(2).
B. Get Access
(1) Make sure that the fan cowl doors are open (Ref. AMM TASK 71-13-00-010-803):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, 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 71-13-00-010-803):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL 448AR
(2) Make sure that the ACCESS PLATFORM 1M(3 FT) is in position.
Subtask 72-21-03-420-050-A
A. Installation of the two Sectors of the Ring Half Flowpath Fairings
(1) Make sure that the mating surfaces are clean and clear of unwanted materials.
(2) Installation of the ring half flowpath fairing (2):
(a) Lubricate the threads of the five screws (5) with the graphite grease (Material No.CP2101) .
(b) Install the ring half flowpath fairing (2) in the correct position.
(c) Install the five screws (5) to attach the ring half flowpath fairing (2) on the flow splitter (4) and tighten them with your hand.
(d) TORQUE the five screws (5) to between 65.1 and 58.9 lbf.in (0.74 and 0.67 m.daN ).
(3) Installation of the ring half flowpath fairing (1):
(a) Lubricate the threads of the five screws (3) with the graphite grease (Material No.CP2101) .
(b) Install the ring half flowpath fairing (1) in the correct position.
(c) Install the five screws (3) to attach the ring half flowpath fairing (1) on the flow splitter (4) and tighten them with your hand.
(d) TORQUE the five screws (3) to between 65.1 and 58.9 lbf.in (0.74 and 0.67 m.daN ).
(4) Install the fan blade (Ref. AMM TASK 72-21-20-400-801).
(5) Install the front spinner (Ref. AMM TASK 72-21-40-400-801).
5. Close-up(1) Make sure that the mating surfaces are clean and clear of unwanted materials.
(2) Installation of the ring half flowpath fairing (2):
(a) Lubricate the threads of the five screws (5) with the graphite grease (Material No.CP2101) .
(b) Install the ring half flowpath fairing (2) in the correct position.
(c) Install the five screws (5) to attach the ring half flowpath fairing (2) on the flow splitter (4) and tighten them with your hand.
(d) TORQUE the five screws (5) to between 65.1 and 58.9 lbf.in (0.74 and 0.67 m.daN )
. (3) Installation of the ring half flowpath fairing (1):
(a) Lubricate the threads of the five screws (3) with the graphite grease (Material No.CP2101) .
(b) Install the ring half flowpath fairing (1) in the correct position.
(c) Install the five screws (3) to attach the ring half flowpath fairing (1) on the flow splitter (4) and tighten them with your hand.
(d) TORQUE the five screws (3) to between 65.1 and 58.9 lbf.in (0.74 and 0.67 m.daN )
. (4) Install the fan blade (Ref. AMM TASK 72-21-20-400-801).
(5) Install the front spinner (Ref. AMM TASK 72-21-40-400-801).
Subtask 72-21-03-410-050-A
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 71-13-00-410-803):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, 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 71-13-00-410-803):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL 448AR
(3) Remove the access platform(s).
(4) Remove the WARNING NOTICE(S).