TASK 72-32-83-300-043 LPC Stage 2.3 Stator - Replace The Abradable Seal, Repair-043 (VRS1756)

DMC:V2500-A0-72-32-8323-01A-920A-C|Issue No:002.00|Issue Date:2018-11-01

Export Control

EAR Export Classification: Not subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3), except for the following Service Bulletins which are currently published as EAR Export Classification 9E991: SBE70-0992, SBE72-0483, SBE72-0580, SBE72-0588, SBE72-0640, SBE73-0209, SBE80-0024 and SBE80-0025.

Copyright

© IAE International Aero Engines AG (2001, 2014 - 2021) The information contained in this document is the property of © IAE International Aero Engines AG and may not be copied or used for any purpose other than that for which it is supplied without the express written authority of © IAE International Aero Engines AG. (This does not preclude use by engine and aircraft operators for normal instructional, maintenance or overhaul purposes.).

Applicability

All

Common Information

TASK 72-32-83-300-043 LPC Stage 2.3 Stator - Replace The Abradable Seal, Repair-043 (VRS1756)

Effectivity

FIG/ITEM

PART NO.

02-250

5A1412

Material of component

PART IDENT

SYMBOL

MATERIAL

LP compressor stage 2.3 vane assembly

Vane: Titanium alloy

Inner ring: Aluminum alloy

General

Price and availability - none

The area used for bonding must be segregated from normal workshop conditions, and must be kept clean. Refer to SPM TASK 70-36-07-360-501.

NOTE

To identify the consumable materials, refer to the PCI.

NOTE

Special tools are identified in the procedure by the tool primary number.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Dry blast cabinetLOCALDry blast cabinet
Hardness tester (durometer)LOCALHardness tester (durometer)
InjectorLOCALInjector

(air pressure type)

Plastic scraperLOCALPlastic scraper
Vacuum cleanerLOCALVacuum cleaner
IAE 3J12775 Bond test fixture0AM53IAE 3J12775
IAE 3J12785 Inspection stand0AM53IAE 3J12785
IAE 3J12792 Inspection stand0AM53IAE 3J12792
IAE 3J12806 Fixture, molding - stage 2.3 vane compound0AM53IAE 3J12806

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 02-001 ADHESIVE TAPE (MASKING)LOCALCoMat 02-001
CoMat 02-005 ADHESIVE TAPE (MASKING)LOCALCoMat 02-005
CoMat 02-099 LINT-FREE CLOTHLOCALCoMat 02-099
CoMat 05-050 SILICON CARBIDE GRIT1E1X8CoMat 05-050
CoMat 08-032 PRIMER71984CoMat 08-032
CoMat 08-037 DELETEDLOCALCoMat 08-037
CoMat 08-038 SILICONE RUBBER COMPOUND64101CoMat 08-038

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-32-83-360-093 Remove the Damaged Abradable Seal

    1. Refer to Figure.

      2. Remove the damaged abradable seal.

        NOTE

        Take care not to damage the LP compressor stage 2.3 vane.

      1. Use a scraper.

      3. Remove the remaining abradable seal, if it is not fully removed by Step.

        1. Apply adhesive tape for masking to the areas which do not require removing the remaining abradable seal.

        2. Use dry plastic blast to remove the remaining abradable seal.

        1. Refer to SPM TASK 70-12-07-120-501.

      3. Remove adhesive tape for masking.

    2. SUBTASK 72-32-83-120-058 Clean the Surfaces which are to be Applied with Silicon Rubber Compound

    1. Refer to Figure.

      2. Mask the areas which are not to be applied with silicone rubber compound.

      3. Dry abrasive blast the molding area.

      2. Use a dry blast system cabinet.

      3. Use an air pressure of 70 psig (483 kPa) at a minimum distance of 6 in. (152 mm) from the air nozzle to the component surface.

      4. Remove the abrasive grit that remains by vacuuming.

      1. Use a vacuum cleaner.

      5. Wipe the blasted surfaces.

      2. Refer to SPM TASK 70-36-06-360-501.

    6. NOTE

      After cleaning, the component must not be touched by hand and must be covered by craft paper, to prevent contamination.

      Air dry for 10 minutes minimum.

    3. SUBTASK 72-32-83-360-094 Apply Primer to the Surfaces after Cleaning

      1. NOTE

        The primed surface must have a faint pink color. If there is no color, the primer layer is not continuous. If the color is bright, streaky bright or chalky, the primer is too thick.
        Keep the primer in a small container for single use only. The primer that remains must not be used.

        Immediately after the air dry, apply a very thin layer (thickness 0.0001 in. (0.003 mm) of primer to the molding surface with the use of a piece of cheese cloth.

      2. Refer to SPM TASK 70-36-06-360-501.

      2. Cure the primed surface.

      1. Refer to SPM TASK 70-36-06-360-501, SUBTASK 70-36-06-360-001.

    4. SUBTASK 72-32-83-360-095 Mix the Silicone Rubber Compound

      1. NOTE

        The silicone rubber compound has a shelf life of six months from the date of shipment.
        The compound, as received, must be kept at a temperature not higher than 90 deg F (32 deg C).

        NOTE

        The resin and the catalyst in each kit are chemically matched. Do not mix with the components of other kits.

        Mix the silicone rubber compound with the use of a mixer with a drill press to between 70 deg F and 80 deg F (21 deg C and 27 deg C) for 20 minutes to 30 minutes.

    2. Remove the gases from the mixture with a vacuum of 25 mm Hg to 50 mm Hg for 30 minutes minimum.

    5. SUBTASK 72-32-83-360-096 Mold the Silicone Rubber Compound

      1. Clean the molding fixture.

    2. Attach the component to the molding fixture.

      3. Put the gas free silicone rubber compound into an injector.

      1. Use an injector, air pressure type.

      4. Inject the silicone rubber compound into the component (with the molding fixture attached) until the compound comes out of the vent port of the fixture.

      1. Injection pressure: 35 psig (241.5 kPa).

    6. SUBTASK 72-32-83-360-097 Cure the Silicone Rubber Compound

      1. Cure the compound.

      1. Refer to SPM TASK 70-36-06-360-501.

    2. Remove the component from the molding fixture.

      3. Cure the component.

      1. Refer to SPM TASK 70-36-06-360-501.

    7. SUBTASK 72-32-83-220-170 Examine the Repaired Area

    1. Refer to Figure and Figure.

      2. Visually examine the repaired area.

      1. Refer to TASK 72-32-83-200-000 (INSPECTION-000).

      2. Refer to SPM TASK 70-36-06-360-501.

    3. Dimensional check the diameter of the repaired area. If necessary, grind the diameter of the repaired area.

      4. Do a hardness check of the repaired area at four equal spaced positions on the circumference.

      1. Use a hardness tester (durometer).

      2. Hardness: ASTM D2240 (durometer 'A') 52 - 65.

    8. SUBTASK 72-32-83-220-171 Do a Bond Test to the Repaired Area

    1. Refer to Figure.

      2. NOTE

        The bond test must be done after curing of the rubber compound on the following conditions:
        Inspection gas: Air or nitrogen gas.
        Gas pressure: 200 psig (1380 kPa).
        Inspection position: Change the pattern as necessary to examine the not fully repaired area.
        Probe angle: Approximately 45 degrees.

        Do a bond test to the repaired area.

      2. No signs of bulging or air leakage are permitted.

    9. Figure: Repair Details and Dimensions

    Repair Details and Dimensions

    Figure: Repair Details and Dimensions

    Repair Details and Dimensions

    Figure: Repair Details and Dimensions

    Repair Details and Dimensions

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Added consumable and steps. (95VJ833C)

Manufacturer Code:0AM53
Enterprise Name:IAE INTERNATIONAL AERO ENGINES AG
BU Name:NULL
Building:SUITE 400
Street:628 HEBRON AVENUE
City:GLASTONBURY
State:CT
Zip Code:06033
Country:USA
Manufacturer Code:1E1X8
Enterprise Name:SAINT-GOBAIN CERAMICS AND PLASTICS, INC
BU Name:SAINT-GOBAIN CERAMICS AND PLASTICS, INC
Street:1 NEW BOND ST
City:WORCESTER
State:MA
Zip Code:01606
Country:UNITED STATES OF AMERICA
Phone Number:1-508-795-5000, 1-800-243-0028
Fax Number:1-508-795-2380
Internet:www.saint-gobain-northamerica.com
Manufacturer Code:64101
Enterprise Name:DELETED, SEE CAGE CODE 05972
Manufacturer Code:71984
Enterprise Name:DOW SILICONES CORP
BU Name:DOW SILICONES CORP
Street:2200 W SALZBURG RD
City:MIDLAND
State:MI
Zip Code:48611
Country:UNITED STATES OF AMERICA
Phone Number:1-800-248-2481, 1-989-496-7881, 1-989-496-6000
Fax Number:1-989-496-6731, 1-989-496-5956
Internet:www.dowcorning.com
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:LOCAL
Supply Number:CoMat 02-001
Type:sp01
Supply Short Name:CoMat 02-001 ADHESIVE TAPE (MASKING)
Supply Name:CoMat 02-001 ADHESIVE TAPE (MASKING)
Specification Groups:
Doc NumberType
OMAT: 230 (RR REF)ZINC OXIDE AT142
JCR-197 (JAEC REF)ZINC OXIDE AT142
Suppliers:
ManufacturerRemarks
LOCAL
K6835
U0415
Manufacturer Code:LOCAL
Supply Number:CoMat 02-005
Type:sp01
Supply Short Name:CoMat 02-005 ADHESIVE TAPE (MASKING)
Supply Name:CoMat 02-005 ADHESIVE TAPE (MASKING)
Specification Groups:
Doc NumberType
OMAT: 2/94 (RR REF)AT 7 BLACK, WATERPROOF
Suppliers:
ManufacturerRemarks
LOCAL
U0415
K6835
Manufacturer Code:X222X
Supply Number:CoMat 02-099
Type:sp01
Supply Short Name:CoMat 02-099 LINT-FREE CLOTH
Supply Name:CoMat 02-099 LINT-FREE CLOTH
Specification Groups:
Doc NumberType
WHERE COMAT 02-099 IS SPECIFIED WITH NO SUFFIX, USE COMAT 02-099A OR COMAT 02-099B.
Suppliers:
ManufacturerRemarks
X222X
Manufacturer Code:1E1X8
Supply Number:CoMat 05-050
Type:sp01
Supply Short Name:CoMat 05-050 SILICON CARBIDE GRIT
Supply Name:CoMat 05-050 SILICON CARBIDE GRIT
Specification Groups:
Doc NumberType
PMC 3053-31SILICON CARBIDE 5348 COATING No. 60 GRIT
Suppliers:
ManufacturerRemarks
1E1X8
Manufacturer Code:X222X
Supply Number:CoMat 08-032
Type:sp01
Supply Short Name:CoMat 08-032 PRIMER
Supply Name:CoMat 08-032 PRIMER
Specification Groups:
Doc NumberType
DELETED. USE ONE OF THE COMAT 08-032 LETTER SUFFIX ALTERNATIVE MATERIALS.
Suppliers:
ManufacturerRemarks
X222X
Manufacturer Code:X111X
Supply Number:CoMat 08-037
Type:sp01
Supply Short Name:CoMat 08-037 DELETED
Supply Name:CoMat 08-037 DELETED
Specification Groups:
Doc NumberType
DELETED
Suppliers:
ManufacturerRemarks
X111X
Manufacturer Code:FAK74
Supply Number:CoMat 08-038
Type:sp01
Supply Short Name:CoMat 08-038 SILICONE RUBBER COMPOUND
Supply Name:CoMat 08-038 SILICONE RUBBER COMPOUND
Specification Groups:
Doc NumberType
JCR-106 (JAEC REF)BLUESIL V-622
JS-3024 (JAEC REF)
Suppliers:
ManufacturerRemarks
FAK74
Manufacturer Code:LOCAL
Tool Number:Dry blast cabinet
Tool Name:Dry blast cabinet
Link not Found
Manufacturer Code:0AM53
Tool Number:IAE 3J12775
Tool Name:IAE 3J12775 Bond test fixture
Manufacturer Code:0AM53
Tool Number:IAE 3J12785
Tool Name:IAE 3J12785 Inspection stand
Manufacturer Code:0AM53
Tool Number:IAE 3J12792
Tool Name:IAE 3J12792 Inspection stand
Manufacturer Code:0AM53
Tool Number:IAE 3J12806
Tool Name:IAE 3J12806 Fixture, molding - stage 2.3 vane compound
Manufacturer Code:LOCAL
Tool Number:Injector
Tool Name:Injector
Link not Found
Manufacturer Code:LOCAL
Tool Number:Vacuum cleaner
Tool Name:Vacuum cleaner