TASK 72-41-34-300-065 HP Compressor VIGV, Stage 3, 4 and 5 Vane Centralising Pads and Housing - Replace Damaged Pad, Repair-065 (VRS9539)

DMC:V2500-A5-72-41-3440-00A-920A-C|Issue No:002.00|Issue Date:2021-02-01

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 72-41-34-300-065 HP Compressor VIGV, Stage 3, 4 and 5 Vane Centralising Pads and Housing - Replace Damaged Pad, Repair-065 (VRS9539)

Effectivity

FIG/ITEM

PART NO.

ASSEMBLY

02-680

6B1066

B

03-680

6B1066

B

02-730

6B1067

A

03-730

6B1067

A

04-680

6B1080

A

05-680

6B1080

A

Material of component

PART IDENTIFICATION

RR SYMBOL

MATERIAL

HP Compressor VIGV, Stage 3, 4 and 5 Vane Centralising Housing

LAH

Aluminium Alloy Bar

HP Compressor VIGV, Stage 3, 4 and 5 Vane Centralising Pads

VYP

Graphite Filled Polyamide Moulding

General

This TASK gives the procedure to repair the HP Compressor VIGV, Stage 3, 4 and 5 Vane Centralising Pads and Housing by replacing the damaged pad.

This repair must only be done when the instruction to do so is given in the relevant inspection procedures (identified by the applicable part number) located in Section 72-41-34.

Where reference is made to a SUBTASK within a TASK in the form"TASK, SUBTASK'' the operator must read and apply the complete TASK. The SUBTASK is listed only when the TASK gives options for the processing of the component. The specified SUBTASK instructs what option must be used during application of the TASK for the successful completion of the repair scheme VRS9539.

TASKs identified by SPM TASK are in the Standard Practices Manual (SPM).

NOTE

It is possible that some materials in the Consumable Materials chart cannot be used for some or all of the necessary applications. Before you use the materials, make sure the types, quantities and applications of the materials necessary are legally permitted in your location. All persons must obey all applicable federal, state, local and provincial laws and regulations when it is necessary to work with these materials.

NOTE

To identify the consumable materials refer to the Consumable Materials Index (PCI).

NOTE

Other necessary consumable materials are referred to in the SPM TASKs in this TASK.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Abrasive blasting equipmentLOCALAbrasive blasting equipment
Chemical cleaning equipmentLOCALChemical cleaning equipment
Dimensional inspection equipmentLOCALDimensional inspection equipment
Fluorescent Penetrant Inspection EquipmentLOCALFluorescent penetrant inspection equipment
Milling machineLOCALMilling machine
Standard Workshop EquipmentLOCALStandard Workshop Equipment
Dial test indicatorLOCALDial test indicator

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 05-003 ABRASIVE MEDIUM ALUMINUM OXIDE, 120/220 GRADEX222XCoMat 05-003
CoMat 05-127 ABRASIVE PADLOCALCoMat 05-127
CoMat 06-063 FLUORESCENT PENETRANT (POST-EMULSIFIED MEDIUM SENSITIVITY)X222XCoMat 06-063
CoMat 08-013 COLD CURING SILICONE COMPOUNDX222XCoMat 08-013

Spares

NameManufacturerPart Number / IdentificationQuantityRemark
Bearing padLOCAL6B16201

Assembly B

Bearing padLOCAL6B16201

Assembly B

Bearing padLOCAL6B16211

Assembly A

Bearing padLOCAL6B16211

Assembly A

Bearing padLOCAL6B16211

Assembly A

Bearing padLOCAL6B16211

Assembly A

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-41-34-320-001 Machine to Remove the Bearing Pad Material from the Centralising Housing

    1. Refer to Figure and Figure.

      2. Assemble the fixture onto the machine.

      1. Use the locally manufactured tools with a Milling machine and a Dial test indicator.

      3. Assemble the HP Compressor VIGV, Stage 3, 4 and 5 Vane Centralising Pads and Housing onto the Milling machine to remove the bearing pad material.

      1. Mill to remove the bearing pad material.

      2. You must not remove material from the Centraliser Housing.

      3. Disassemble the bolt(s) and put aside from re-assembly.

    2. SUBTASK 72-41-34-120-001 Remove the Residual Sealant from the Centralising Housing

      1. Degrease the Centraliser Housing.

      2. Mask the surfaces of the Centralising Housing that are not to be abrasive blasted.

      1. Use adhesive masking tape or a suitable mechanical mask.

      3. Abrasive blast the Centralising Housing to remove the remaining sealant.

      1. Refer to SPM TASK 70-12-02-120-501.

      2. Dry abrasive blast the repair area.

      4. Degrease the Centralising Housing.

    3. SUBTASK 72-41-34-220-451 Dimensionally Inspect

    1. Refer to Figure and Figure.

      2. Dimensionally inspect the abrasive blasted Centralising Housing.

          1. If the repaired Centralising Housing is not within the given dimensions.

          1. Reject.

          2. If the repaired Centralising Housing is within the given dimensions.

          1. Continue with the repair.

    4. SUBTASK 72-41-34-230-132 Fluorescent Penetrant Inspect

      1. Inspect for cracking at the repair area on the Centralising Housing using fluorescent penetrant inspection.

      1. Refer to SPM TASK 70-23-05-230-501.

          1. If cracking is detected.

          1. Reject.

          2. If no cracking is detected.

          1. Continue with the repair.

    5. SUBTASK 72-41-34-350-141 Touch-up the Coating on the Housing

    1. Refer to Figure and Figure.

      2. Apply the surface protection.

      1. Refer to SPM TASK 70-38-02-300-503, SUBTASK 70-38-02-300-002.

    6. SUBTASK 72-41-34-350-142 Assemble the Centralising Housing Bolt and Pad

    1. Refer to Figure, Figure, Figure and Figure.

      2. Install the Bearing Pad into the Centralising Housing.

      1. Use CoMat 05-127 ABRASIVE PAD to abrade the Bearing Pad surfaces that are to be bonded.

      2. Install the bolt(s) into the Centralising Housing.

      3. Refer to SPM TASK 70-36-02-360-501, SUBTASK 70-36-02-360-020.

      4. Apply CoMat 08-013 COLD CURING SILICONE COMPOUND sealant to the surface of the bearing pad and Centralising Housing that are to be bonded.

      5. Install the bearing pad into the Centralising Housing.

      3. Apply sealant to the Centralising Housing.

      1. Refer to SPM TASK 70-36-02-360-501, SUBTASK 70-36-02-360-020.

      2. Apply CoMat 08-013 COLD CURING SILICONE COMPOUND sealant to the Centralising Housing as required.

      3. Remove excess sealant as required.

      4. Inspect the bonded joint.

        1. Visually inspect for complete bonding and no sealant on the radius of surface of the bearing pad.

          1. If there is evidence of disbond or if there is sealant on the radius surface of the bearing pad.

          1. Repeat the repair from Step.

          2. If there is no evidence of disbond or sealant on the radius surface of the bearing pad.

          1. Continue with the repair.

    7. SUBTASK 72-41-34-350-143 Identify the Repair

    1. Refer to Figure and Figure.

      NOTE

      If the HP Compressor VIGV, Stage 3, 4 and 5 Vane Centralising Pads and Housing is already identified with the repair scheme number VRS9539 from a previous repair application, further identification is not necessary.

      2. Vibro-peen VRS9539 at the indicated location(s) on the HP Compressor VIGV, Stage 3, 4 and 5 Vane Centralising Pads and Housing.

      1. Refer to SPM TASK 70-09-00-400-501, SUBTASK 70-09-00-400-001.

      2. Use dot peen equipment.

      3. Remove raised material, burrs and/or sharp edges at the vibro-peen marking area.

      1. Refer to SPM TASK 70-35-03-300-501.

    8. SUBTASK 72-41-34-350-144 Touch-up the Coating on the Housing

    1. Refer to Figure and Figure.

      2. Apply the surface protection.

      1. Refer to SPM TASK 70-38-02-300-503, SUBTASK 70-38-02-300-002.

    9. Figure: HP Compressor VIGV, Stage 3, 4 and 5 Vane Centralising Pads and Housing - Repair Details and Dimensions - Assembly A

    HP Compressor VIGV, Stage 3, 4 and 5 Vane Centralising Pads and Housing - Repair Details and Dimensions - Assembly A

    Figure: HP Compressor VIGV and Stage 3 Vane Centralising Pads and Housing - Repair Details and Dimensions - Assembly B

    HP Compressor VIGV and Stage 3 Vane Centralising Pads and Housing - Repair Details and Dimensions - Assembly B

    Figure: HP Compressor VIGV, Stage 3, 4 and 5 Vane Centralising Pads and Housing - Replacement Bearing Pad Details - Assembly A

    HP Compressor VIGV, Stage 3, 4 and 5 Vane Centralising Pads and Housing - Replacement Bearing Pad Details - Assembly A

    Figure: HP Compressor VIGV and Stage 3 Vane Centralising Pads and Housing - Replacement Bearing Pad Details - Assembly B

    HP Compressor VIGV and Stage 3 Vane Centralising Pads and Housing - Replacement Bearing Pad Details - Assembly B

    Figure: HP Compressor VIGV, Stage 3, 4 and 5 Vane Centralising Pads and Housing - Repair Details - Assembly A

    HP Compressor VIGV, Stage 3, 4 and 5 Vane Centralising Pads and Housing - Repair Details - Assembly A

    Figure: HP Compressor VIGV and Stage 3 Vane Centralising Pads and Housing - Repair Details - Assembly B

    HP Compressor VIGV and Stage 3 Vane Centralising Pads and Housing - Repair Details - Assembly B

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Deleted consumable CoMat 05-140 and revised the procedural step. (20VG123)

Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:X222X
Enterprise Name:N/A – REFER TO APPLICABLE COMAT SUFFIX
Link not Found
Link not Found
Manufacturer Code:X222X
Supply Number:CoMat 05-003
Type:sp01
Supply Short Name:CoMat 05-003 ABRASIVE MEDIUM ALUMINUM OXIDE, 120/220 GRADE
Supply Name:CoMat 05-003 ABRASIVE MEDIUM ALUMINUM OXIDE, 120/220 GRADE
Specification Groups:
Doc NumberType
Use one of the CoMat 05-003 letter suffix alternatives.
Suppliers:
ManufacturerRemarks
X222X
Manufacturer Code:LOCAL
Supply Number:CoMat 05-127
Type:sp01
Supply Short Name:CoMat 05-127 ABRASIVE PAD
Supply Name:CoMat 05-127 ABRASIVE PAD
Specification Groups:
Doc NumberType
OMAT: 584SCOTCH BRITE TYPE NO.7496 MIL-A-9962A TYPE II GRADE B OR C
JCR-257SCOTCH BRITE TYPE NO.7496 MIL-A-9962A TYPE II GRADE B OR C
Suppliers:
ManufacturerRemarks
LOCAL
K0993
K6835
Manufacturer Code:X222X
Supply Number:CoMat 06-063
Type:sp01
Supply Short Name:CoMat 06-063 FLUORESCENT PENETRANT (POST-EMULSIFIED MEDIUM SENSITIVITY)
Supply Name:CoMat 06-063 FLUORESCENT PENETRANT (POST-EMULSIFIED MEDIUM SENSITIVITY)
Specification Groups:
Doc NumberType
It is not permitted to mix the selected CoMat 06‐063 letter suffix material with other CoMat 06‐063 letter suffix materials. Where CoMat 06‐063 is specified with no suffix, use one of the CoMat 06‐063 letter suffix materials.
Suppliers:
ManufacturerRemarks
X222X
Manufacturer Code:X222X
Supply Number:CoMat 08-013
Type:sp01
Supply Short Name:CoMat 08-013 COLD CURING SILICONE COMPOUND
Supply Name:CoMat 08-013 COLD CURING SILICONE COMPOUND
Specification Groups:
Doc NumberType
If CoMat 08-013 is specified without an asterisk or a letter suffix, use one of the letter suffix alternative materials.
Suppliers:
ManufacturerRemarks
X222X
Link not Found
Manufacturer Code:LOCAL
Tool Number:Chemical cleaning equipment
Tool Name:Chemical cleaning equipment
Manufacturer Code:LOCAL
Tool Number:Dial test indicator
Tool Name:Dial test indicator
Manufacturer Code:LOCAL
Tool Number:Dimensional inspection equipment
Tool Name:Dimensional inspection equipment
Manufacturer Code:LOCAL
Tool Number:Fluorescent penetrant inspection equipment
Tool Name:Fluorescent Penetrant Inspection Equipment
Manufacturer Code:LOCAL
Tool Number:Milling machine
Tool Name:Milling machine
Manufacturer Code:LOCAL
Tool Number:Standard Workshop Equipment
Tool Name:Standard Workshop Equipment