DOC AIRBUS | AMM A320FSealing of the Fan Cowl Strake Fastener Holes [IAE]
TASK 71-13-19-040-801-A
Sealing of the Fan Cowl Strake Fastener Holes
CDL 54-01
Nacelle Strake
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 71-13-19-869-053-A ** ON A/C NOT FOR ALL
Subtask 71-13-19-110-053-A ** ON A/C NOT FOR ALL
Subtask 71-13-19-410-053-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 02:30:04 UTC
Sealing of the Fan Cowl Strake Fastener Holes
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 JobCDL 54-01
Nacelle Strake
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) |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.V01-076) | Methyl Ethyl Ketone, Technical grade |
| (Material No.V02-099) | lint free cloth |
| (Material No.V02-162) | syringe |
| (Material No.V02-178) | masking tape |
| (Material No.V05-021) | Waterproof silicon carbide abrasive paper |
| (Material No.V08-141) | sealant |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| FOR [1000EM1] (ENGINE-1) | |
| 437AL, 438AR | |
| FOR [1000EM2] (ENGINE-2) | |
| 447AL, 448AR | |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 71-13-00-010-010-A | Opening of the Fan Cowls 437AL(447AL),438AR(448AR) |
| TASK 71-13-00-410-010-A | Closing of the Fan Cowls 437AL(447AL),438AR(448AR) |
Sealing of the Fan Cowl Strake Fastener HolesSubtask 71-13-19-869-053-A ** ON A/C NOT FOR ALL
A. General
(1) This task gives the procedure to seal the right fan cowl strake fastener holes, 438AR on engine 1.
Subtask 71-13-19-941-053-A ** ON A/C NOT FOR ALL (1) This task gives the procedure to seal the right fan cowl strake fastener holes, 438AR on engine 1.
NOTE: The procedure to seal the left fan cowl strake fastener holes, 447AL on the engine 2 is the same as for engine 1. Only one procedure is given.
NOTE: If a fan cowl strake configuration to be installed is different from the configuration removed, refer to Service Bulletin (SB) V2500-NAC-71-0258.
B. Safety Precautions
(1) On the center pedestal, on ENG panel 115VU:
(a) Put a WARNING NOTICE(S) in position to tell persons not to start engine 1(2).
(2) Make sure that the engine 1(2) shutdown occurred not less than five minutes before you do this procedure.
(3) On the overhead maintenance panel 50VU:
(a) Make sure that the ON legend of ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a WARNING NOTICE(S) in position to tell persons not to energize FADEC 1(2).
Subtask 71-13-19-010-055-A ** ON A/C NOT FOR ALL (1) On the center pedestal, on ENG panel 115VU:
(a) Put a WARNING NOTICE(S) in position to tell persons not to start engine 1(2).
(2) Make sure that the engine 1(2) shutdown occurred not less than five minutes before you do this procedure.
(3) On the overhead maintenance panel 50VU:
(a) Make sure that the ON legend of ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a WARNING NOTICE(S) in position to tell persons not to energize FADEC 1(2).
C. Get Access
(1) Open the fan cowls (Ref. AMM TASK 71-13-00-010-010):
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(2) Put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position.
4. Procedure(1) Open the fan cowls (Ref. AMM TASK 71-13-00-010-010):
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(2) Put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position.
Subtask 71-13-19-110-053-A ** ON A/C NOT FOR ALL
A. Remove any used sealant from the fan cowl strake fastener holes:
(1) Remove used sealant from the strake holes on the fan cowl door.
(2) Use a clean lint free cloth (Material No.V02-099) made moist withV01-076 Methyl Ethyl Ketone, Technical grade
Subtask 71-13-19-914-053-A ** ON A/C NOT FOR ALL (1) Remove used sealant from the strake holes on the fan cowl door.
(2) Use a clean lint free cloth (Material No.V02-099) made moist with
B. Seal the strake fastener holes as follows:
PRE SBN70-0975
(2) Cleaning of the inside surface of the fan cowl door
V01-076 Methyl Ethyl Ketone, Technical grade
(3) Filling of the strake fastener holes
(b) Fill a syringe (Material No.V02-162) with the mixed sealant (Material No.V08-141) .
(c) Use the syringe (Material No.V02-162) and fill the strake fastener holes with the mixed sealing compound. Make sure that the level of the sealant (Material No.V08-141) is 0.5 in. (12.7 mm) below the inside surface of the fan cowl door.
(d) Cure the sealant (Material No.V08-141) in accordance with the manufacturer's instructions.
(4) Remove the masking tape (Material No.V02-178) from the outside surface of the fan cowl door.
END OF PRE SBN70-0975
SBN70-0975
V01-076 Methyl Ethyl Ketone, Technical grade
(6) Filling of the strake fastener holes
(b) Fill a syringe (Material No.V02-162) with the mixed sealant (Material No.V08-141) .
(c) Apply a sufficient quantity of the mixed sealant around the filler plug (1). Install each filler plug (1) from the outside surface. Make sure that the plugs are flush with the outside surface of the fan cowl door.
(d) Cure the sealant (Material No.V08-141) in accordance with the manufacturer's instructions.
END OF SBN70-0975
(7) Make the rework area on the outside of the fan cowl door smooth.
(8) Repair the surface protective layer. Refer to the Standard Practices/Processes Manual (SPP-V2500-1IA), Chapter 70-38-07.
Subtask 71-13-19-850-050-A ** ON A/C NOT FOR ALL PRE SBN70-0975
NOTE: If the fan cowl strake configuration to be installed is different from the configuration removed, use SB V2500-NAC-71-0258 to install the strakes in the new configuration.
(1) Install masking tape (Material No.V02-178) on the strake fastener holes on the outside of the fan cowl door. (2) Cleaning of the inside surface of the fan cowl door
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
(a) Use a clean lint free cloth (Material No.V02-099) made moist with (3) Filling of the strake fastener holes
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
(a) Mix the sealant (Material No.V08-141) in accordance with the manufacturer's instructions. (b) Fill a syringe (Material No.V02-162) with the mixed sealant (Material No.V08-141) .
(c) Use the syringe (Material No.V02-162) and fill the strake fastener holes with the mixed sealing compound. Make sure that the level of the sealant (Material No.V08-141) is 0.5 in. (12.7 mm) below the inside surface of the fan cowl door.
(d) Cure the sealant (Material No.V08-141) in accordance with the manufacturer's instructions.
(4) Remove the masking tape (Material No.V02-178) from the outside surface of the fan cowl door.
END OF PRE SBN70-0975
SBN70-0975
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
(5) Cleaning of the outside surface of the fan cowl door NOTE: If the fan cowl strake configuration to be installed is different from the configuration removed, use SB V2500-NAC-71-0258 to install the strakes in the new configuration.
(a) Use a clean lint free cloth (Material No.V02-099) made moist with (6) Filling of the strake fastener holes
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
(a) Mix the sealant (Material No.V08-141) in accordance with the manufacturer's instructions. (b) Fill a syringe (Material No.V02-162) with the mixed sealant (Material No.V08-141) .
(c) Apply a sufficient quantity of the mixed sealant around the filler plug (1). Install each filler plug (1) from the outside surface. Make sure that the plugs are flush with the outside surface of the fan cowl door.
(d) Cure the sealant (Material No.V08-141) in accordance with the manufacturer's instructions.
END OF SBN70-0975
(7) Make the rework area on the outside of the fan cowl door smooth.
WARNING:
DO NOT BREATHE THE DUST OR GET IT ON YOUR SKIN. PUT ON PROTECTIVE CLOTHING, GOGGLES AND A FACE MASK.
CAUTION:
DO NOT CAUSE DAMAGE TO THE OUTSIDE SURFACE OF THE FAN COWL DOOR. CAREFULLY REMOVE THE SEALING COMPOUND FROM THE REPAIR AREA. DO NOT USE A LIQUID WITH THE ABRASIVE PAPER.
(a) Use Waterproof silicon carbide abrasive paper (Material No.V05-021) to make the rework area on the outside of the fan cowl door smooth. (8) Repair the surface protective layer. Refer to the Standard Practices/Processes Manual (SPP-V2500-1IA), Chapter 70-38-07.
C. Fan Cowl Door Part Number Change
5. Close-upNOTE: If the fan cowl strake configuration installed is different from the configuration removed, the fan cowl door part number must be changed. Refer to SB V2500-NAC-71-0258.
(1) If necessary, amend the part number on the fan cowl door, refer to SB V2500-NAC-71-0258. Subtask 71-13-19-410-053-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 cowls (Ref. AMM TASK 71-13-00-410-010):
(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 cowls (Ref. AMM TASK 71-13-00-410-010):
(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).