W DOC AIRBUS | AMM A320F

Installation of the Fan Cowl Strake [CFML]

TASK 71-13-15-400-802-A
Installation of the Fan Cowl Strake

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.
CAUTION: DO NOT EXTEND THE SLATS WHEN THE FAN COWLS AND THE THRUST REVERSER COWLS ARE OPEN. IF YOU DO THIS, DAMAGE TO THE AIRCRAFT CAN OCCUR.
ZONE: 400
FIN: 1460KM2
FIN: 1461KM2
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 2M (6 FT) - ADJUSTABLE
No specific
AR
WARNING NOTICE(S)
No specific
Torque wrench: range to between 1.06 and 0.82 m.daN (93.81 and 72.57 lbf.in ) T
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.CPNCL00245)
RELEASE AGENT QZ 5111
(Material No.CPNCL00338)
MASTINOX D40
(Material No.CPNCL00700)
ELECTRICAL BONDING COATING (BLUE COLOR)
(Material No.CPNCL01237)
Polysulfide Sealant - General Purpose Interfay
(Material No.CPNCL02069)
LINT-FREE COTTON CLOTH
(Material No.CPNCL02589)
GENERAL CLEANING AGENT - MULTI PURPOSE
 C. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
400
POWER PLANT, NACELLES AND PYLONS
FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL, 438AR
FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL, 448AR
 D. Expendable Parts
FIG.ITEM
DESIGNATION
IPC-CSN
5
BOLTS
AIPC 71-13-10-10-760
8
BOLTS
AIPC 71-13-11-10-170
2
BOLTS
AIPC 71-13-80-02-030
 E. Referenced Information
REFERENCE
DESIGNATION
TASK 20-28-00-912-802-A
Electrical Bonding - General Maintenance Procedure
TASK 71-13-00-010-803-A
Opening of the Fan Cowl Doors
TASK 71-13-00-040-810-A
Filling of the Fan Cowl Door Strake Fastener Holes
TASK 71-13-00-410-803-A
Closing of the Fan Cowl Doors
SRM 514200
F Fan Cowl Strakes PRE SPOL BD-FC-17001 and PRE SPOL BD-FC-17002
F Fan Cowl Strakes POST SPOL BD-FC-17001 and POST SPOL BD-FC-17002
3. Job Set-up
Subtask 71-13-15-941-055-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:
  • The ENG/MODE selector switch
  • The ENG/MASTER 1(2) control switch.
   (2) On the ENG section of maintenance panel 50VU:
     (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 71-13-15-010-058-A
B. Get Access
   (1) Get access to the fan cowl door.
   (2) Make sure that the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE is in position.
4. Procedure
Subtask 71-13-15-420-052-A
A. Installation of the Fan Cowl Strake

PRE SPOL BD-FC-17001


PRE SPOL BD-FC-17002

F Fan Cowl Strakes PRE SPOL BD-FC-17001 and PRE SPOL BD-FC-17002
   (1) If necessary, remove the sealant from the fan cowl door strake fastener holes (Ref. AMM TASK 71-13-00-040-810).
   (2) Clean the fan cowl strake (1) and mating surfaces of the fan cowl strake (1). Use GENERAL CLEANING AGENT - MULTI PURPOSE (Material No.CPNCL02589) and LINT-FREE COTTON CLOTH (Material No.CPNCL02069) .
   (3) Apply a thin layer of Polysulfide Sealant - General Purpose Interfay (Material No.CPNCL01237) on the strake base.
   (4) Put the fan cowl strake (1) in position on the fan cowl door.
   (5) Remove the unwanted sealant.
   (6) Let the sealant cure. Refer to the manufacturer's instructions for the cure time.
   (7) Remove the fan cowl strake (1).
   (8) If damaged, replace the RELEASE AGENT QZ 5111 (Material No.CPNCL00245) .
     (a) Apply the RELEASE AGENT QZ 5111 (Material No.CPNCL00245) on the fan cowl skin.
   (9) Put the fan cowl strake (1) in position on the fan cowl door.
   (10) Install the fan cowl strake (1) with the new AIPC 71-13-80-02-030 BOLTS (2).
NOTE: Use the correct bolt length in order to obey the fastener installation rules described in SRM 514200.
   (11) TORQUE the bolts (2) to between 1.06 and 0.82 m.daN (93.81 and 72.57 lbf.in ) T.
NOTE: Brush-seal the fasteners with MASTINOX D40 (Material No.CPNCL00338) .
   (12) Remove the access platform(s).

END OF PRE SPOL BD-FC-17001

END OF PRE SPOL BD-FC-17002

Subtask 71-13-15-420-054-A
B. Installation of the Fan Cowl Strake

POST SPOL BD-FC-17001

POST SPOL BD-FC-17002

F Fan Cowl Strakes POST SPOL BD-FC-17001 and POST SPOL BD-FC-17002
   (1) If necessary, remove the sealant from the fan cowl door strake fastener holes (Ref. AMM TASK 71-13-00-040-810).
   (2) Clean the fan cowl strake (4) and/or (7) and mating surfaces of the fan cowl strake (4) and/or (7). Use GENERAL CLEANING AGENT - MULTI PURPOSE (Material No.CPNCL02589) and LINT-FREE COTTON CLOTH (Material No.CPNCL02069) .
   (3) Apply a thin layer of CPNCL01237Polysulfide Sealant - General Purpose Interfay) on the strake base.
   (4) Put the fan cowl strake (4) and/or (7) in position on the fan cowl door.
   (5) Remove the unwanted sealant.
   (6) Let the sealant cure. Refer to the manufacturer's instructions for the cure time.
   (7) Remove the fan cowl strake (4) and/or (7).
   (8) If damaged, replace the RELEASE AGENT QZ 5111 (Material No.CPNCL00245) .
     (a) Apply the RELEASE AGENT QZ 5111 (Material No.CPNCL00245) on the fan cowl skin.
   (9) Put the fan cowl strake (4) and/or (7) in position on the fan cowl door.
   (10) Do the installation of the fan cowl strake:
     (a) For the Left Hand (LH) fan cowl door, install the fan cowl strake (4) with the new AIPC 71-13-10-10-760 BOLTS (5) and the washers (6).
       1 Use the correct bolt length in order to obey the fastener installation rules described in SRM 514200.
     (b) For the Right Hand (RH) fan cowl door, install the fan cowl strake (7) with the new AIPC 71-13-11-10-170 BOLTS (8) and the washers (9).
       1 Use the correct bolt length in order to obey the fastener installation rules described in SRM 514200.
   (11) TORQUE the bolts (5) and/or (8) to between 1.06 and 0.82 m.daN (93.81 and 72.57 lbf.in ) T.
   (12) Brush-seal the fasteners with MASTINOX D40 (Material No.CPNCL00338) .
   (13) Remove the access platform(s).

END OF POST SPOL BD-FC-17001

END OF POST SPOL BD-FC-17002
Subtask 71-13-15-010-056-A
C. Get Access
   (1) Open the fan cowl doors (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) Put an ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position.
Subtask 71-13-15-912-050-A
D. Do the Electrical Bonding
   (1) Apply Polysulfide Sealant - General Purpose Interfay (Material No.CPNCL01237) and CPNCL00700ELECTRICAL BONDING COATING (BLUE COLOR) to the two bonding points. Make sure that the screw heads are fully covered. (Ref. AMM TASK 20-28-00-912-802).
5. Close-up
Subtask 71-13-15-410-054-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).
[Rev.10 from 2021] 2026.04.01 12:58:05 UTC
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