Installation of the Panel Rubber Seals [IAE]

TASK 72-32-87-400-010-B
Installation of the Panel Rubber Seals

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

FIN: 1000EM1 ** ON A/C NOT FOR ALL
FIN: 1000EM2 ** ON A/C NOT FOR ALL

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	ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE
No specific	AR	GUN - SEALANT
No specific	AR	SPATULA - NON METALLIC
No specific	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 85 and 75 lbf.in (0.96 and 0.85 m.daN )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.V01-031)	Acetone, Technical grade
(Material No.V01-124)	Isopropyl Alcohol, Technical grade
(Material No.V08-014)	primer
(Material No.V08-045)	silicone rubber compound
(Material No.V08-168)	silicone rubber compound

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
FOR [1000EM1] (ENGINE-1)
437AL, 438AR, 451AL, 452AR
FOR [1000EM2] (ENGINE-2)
447AL, 448AR, 461AL, 462AR

D. Referenced Information

REFERENCE	DESIGNATION
TASK 70-23-11-911-013-A	General Torque Tightening Techniques
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)
TASK 72-32-87-400-011-B	Installation of the Fan Case Liner Panels
TASK 78-30-00-040-012-A	Deactivation of the Thrust Reverser Hydraulic Control Unit (HCU) for Ground Maintenance
TASK 78-30-00-440-012-A	Re-activation of the Thrust Reverser Hydraulic Control Unit (HCU) after Ground Maintenance
TASK 78-32-00-010-010-A	Opening of the Thrust Reverser Halves
TASK 78-32-00-410-010-A	Closing of the Thrust Reverser Halves
Positions of the Screws to attach the Panel Rubber Seals
Fan Case Liner Panels
Panel Rubber Seals
Removal/Installation of Silicone Compound in Corner between No. 1 Panel Rubber Seal and No. 1 Strut
Application of Silicone Compound to Clearances between Panel Rubber Seals and Fan Case
Protection Cover

3. Job Set-up
Subtask 72-32-87-860-051-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).
(3) Make sure that the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE is in position.

Subtask 72-32-87-010-063-A ** ON A/C NOT FOR ALL

B. Get Access
(1) Make sure that the fan cowl doors are open: (Ref. AMM TASK 71-13-00-010-010)
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(2) Make sure that the thrust reverser doors are open: (Ref. AMM TASK 78-32-00-010-010)
(a) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(b) FOR [1000EM2] (ENGINE-2)
461AL 462AR

Subtask 72-32-87-040-052-A ** ON A/C NOT FOR ALL

C. Make sure that the thrust reverser Hydraulic Control Unit (HCU) is deactivated: (Ref. AMM TASK 78-30-00-040-012)

4. Procedure
Subtask 72-32-87-110-050-A ** ON A/C NOT FOR ALL

A. Make sure that all the mating faces of the panel rubber seals are clean.

Subtask 72-32-87-420-052-A ** ON A/C NOT FOR ALL

B. Install the replacement panel rubber seals.
(1) Attach the panel rubber seals to the fan case and safety them with the screws and the nuts. Tighten the screws lightly.

Positions of the Screws to attach the Panel Rubber Seals ** ON A/C NOT FOR ALL

(2) TORQUE the screws to between 85 and 75 lbf.in (0.96 and 0.85 m.daN )

(Ref. AMM TASK 70-23-11-911-013).

Subtask 72-32-87-420-066-A ** ON A/C NOT FOR ALL

C. Installation of the two front liner panels.

Pre SBE 72-0156
(1) Install the two front liner panels in the front of No. 1 strut, if they were removed.

Fan Case Liner Panels ** ON A/C NOT FOR ALL

and (Ref. AMM TASK 72-32-87-400-011)

Subtask 72-32-87-420-067-A ** ON A/C NOT FOR ALL

D. Application of the silicone rubber compound to the corner.

NOTE: This subtask is necessary only if you have sufficiant time for the cure of the silicone rubber compound. If you do not do this subtask, it can cause a small decrease in engine performance. Thus, you are recommended to do this subtask when you have sufficient time to let the silicone rubber compound cure.

SBE 72-0156
(1) Apply silicone rubber compound to the corner between the No.1 panel rubber seal and the No.1 fan frame strut.

Panel Rubber Seals ** ON A/C NOT FOR ALL

Removal/Installation of Silicone Compound in Corner between No. 1 Panel Rubber Seal and No. 1 Strut ** ON A/C NOT FOR ALL

(a) Clean the mating surfaces with V01-031Acetone, Technical grade or V01-124Isopropyl Alcohol, Technical grade.
(b) Apply a thin layer of primer (Material No.V08-014) to the surface in less than eight hours after the faces are cleaned. Air dry for 30 minutes minimum.
(c) Put silicone rubber compound (Material No.V08-045) or silicone rubber compound (Material No.V08-168) into the corner with the GUN - SEALANT.
(d) Press the silicone rubber compound with a SPATULA - NON METALLIC and make a smooth surface.
(e) Cure the silicone rubber compound. Do not push the silicone rubber compound during curing time.
(f) The curing times at room temperature are as follows:

V08-045: 48 hours
V08-168: three hours.

Subtask 72-32-87-420-068-A ** ON A/C NOT FOR ALL

E. Apply silicone rubber compound to the clearances between the panel rubber seals and the fan case.

Panel Rubber Seals ** ON A/C NOT FOR ALL

Application of Silicone Compound to Clearances between Panel Rubber Seals and Fan Case ** ON A/C NOT FOR ALL

NOTE: This subtask is only necessary if you have sufficient time for the cure of the sealant. If you do not do this subtask it can cause a small decrease in engine performance. Thus, you are recommended to do this subtask when you next have sufficient time to let the silicone rubber compound cure.

(1) Find the clearances to be filled with silicone rubber compound.
(a) Measure the dimensions HA, HB, HC and HD of the clearances.
(b) You must apply silicone rubber compound in to the clearances of which dimension HA, HB, HC or HD is more than 0.079 in. (2.01 mm).
(2) Clean the mating surfaces with V01-031Acetone, Technical grade or V01-124Isopropyl Alcohol, Technical grade.
(3) Apply a thin layer of primer (Material No.V08-014) to the surfaces in less than eight hours after the faces are cleaned. Air dry for 30 minutes minimum.
(4) Put silicone rubber compound (Material No.V08-045) or silicone rubber compound (Material No.V08-168) into the clearances with the sealant dispenser.
(5) Press the silicone rubber compound with a spatula and move the spatula along the fan case rear end.
(6) Cure the silicone rubber compound. Do not push the silicone rubber compound during curing time.
(7) The curing times at room temperature are as follows:

V08-045: 48 hours
V08-168: three hours.

Subtask 72-32-87-630-052-A ** ON A/C NOT FOR ALL

F. Remove the protection cover from the bleed duct.

Protection Cover ** ON A/C NOT FOR ALL

5. Close-up
Subtask 72-32-87-410-055-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 thrust reverser halves (Ref. AMM TASK 78-32-00-410-010):
(a) FOR [1000EM1] (ENGINE-1)
451AL 452AR.
(b) FOR [1000EM2] (ENGINE-2)
461AL 462AR.

Subtask 72-32-87-440-051-A ** ON A/C NOT FOR ALL

B. Activate the thrust reverser HCU (Ref. AMM TASK 78-30-00-440-012).

Subtask 72-32-87-410-063-A ** ON A/C NOT FOR ALL

C. Close Access
(1) 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.
(2) Remove the WARNING NOTICE(S).
(3) Remove the access platform(s).

[Rev.10 from 2021] 2026.04.01 02:45:48 UTC