TASK 72-42-40-300-002 HPC Exit Guide Vane Stator - Repair Damage By Material Removal, Repair- 002 (VRS6041)

DMC:V2500-A0-72-42-4000-01A-649A-C|Issue No:001.00|Issue Date:2013-11-01

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 72-42-40-300-002 HPC Exit Guide Vane Stator - Repair Damage By Material Removal, Repair- 002 (VRS6041)

Effectivity

FIG/ITEM

PART NO.

01-200

6A3332

Assembly A

01-200

6A4509

Assembly B

Material of component

PART IDENT

SYMBOL

MATERIAL

HP Compressor outlet guide vane assembly

QTB

Nickel base alloy

General

This Repair must only be done when the instruction to do so is given in 72-42-40 Inspection/Check.

This Repair gives the instruction to remove damaged material from leading and trailing edges and airfoil surfaces.

Assembly A - A maximum number of 7 vanes AB and 7 vanes AC can have material removed to the maximum limit, refer to Figure.

Assembly B - A maximum number of 70 vanes can have material removed to the maximum limit, refer to Figure and Figure

HP Compressor outlet guide vane assemblies, must be repaired as soon as damage or wear is monitored, to get back engine efficiency and extend the outlet guide vane life.

The practices and processes referred to in the procedure by the TASK/SUBTASK numbers are in the SPM.

Price and availability

Refer to International Aero Engines

Related repairs

HP Compressor OGV Assembly - Stage 12 - Repair Damaged Vane(s) by Replacement (A5/D5 only) - Refer to TASK 72-42-40-300-006 (VRS6640)

NOTE

More equipment and materials necessary to do this Repair are in the SPM TASKS given below:
SPM TASK 70-09-00-400-501
SPM TASK 70-11-39-300-503
SPM TASK 70-23-01-230-501

NOTE

To identify the consumable materials, refer to the PCI.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Chemical cleaning equipmentLOCALChemical cleaning equipment
Penetrant Crack Test EquipmentLOCALPenetrant crack test equipment
Portablegrinding equipmentLOCALPortable grinding equipment
Dimensional inspection equipmentLOCALDimensional inspection equipment
Vibro-engraving equipmentLOCALVibro-engraving equipment

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 05-106 ABRASIVE STONEK6835CoMat 05-106
CoMat 05-109 SILICON CARBIDE ABRASIVETAPE44197CoMat 05-109
CoMat 05-110 EMERY POLISHING PAPER0AM53CoMat 05-110
CoMat 05-111 EMERY POLISHING PAPER06565CoMat 05-111

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-42-40-110-059 Chemically Clean

      1. Chemically clean the HP Compressor outlet guide vane assembly.

      1. Refer to TASK 72-42-40-100-000 (CLEANING-000).

        Use chemical cleaning equipment.

    2. SUBTASK 72-42-40-230-053 Do a Crack Test

      1. Do a penetrant crack test.

      1. Refer to TASK 72-42-40-200-000 (INSPECTION-000).

        Use penetrant crack test equipment.

    3. SUBTASK 72-42-40-220-061 Examine the HP Compressor Outlet Guide Vane Assembly

    1. Refer to: Figure, Figure and Figure

      2. Measure the dimensions of the vane chordal width.

      1. Use dimensional inspection equipment.

      3. If the amount of material removed, to repair damage, is more than the limits specified.

      1. Reject.

        Refer to Manager Repair Services at International Aero Engines.

    4. SUBTASK 72-42-40-350-052-A00 Remove Damage from the HP Compressor Outlet Guide Vane Assembly, Assembly A

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

      2. Remove damage on the leading and/or trailing edge(s) by material removal, over the full edge.

      1. Refer to Figure.

        Use CoMat 05-106 ABRASIVE STONE, with portable grinding equipment.

        Continue to remove material until all the damage is removed.

      3. Remove damage on the airfoil surfaces by material removal.

      1. Refer to Figure.

        Use CoMat 05-106 ABRASIVE STONE and/or CoMat 05-111 EMERY POLISHING PAPER, with portable grinding equipment.

        Continue to remove material until all the damage is removed.

        The maximum depth to remove the damage must not be more than 0.005in. (0.13 mm).

        The diameter of the repaired area(s) is to be 50 times the depth, when completed.

      4. Make smooth the repaired area(s) on all sides.

      1. Make sure all the damage marks are completely removed and the area(s) is/are made smooth into the adjacent material.

      5. Polish the repaired area(s).

      1. Polish the repaired area(s), to remove scratches and to give a surface finish the same as the adjacent material.

        NOTE

        The last polish is to be in a radial direction.

    5. SUBTASK 72-42-40-350-052-B00 Remove Damage from the HP Compressor Outlet Guide Vane Assembly, Assembly B

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

      2. Remove damage on the leading and/or trailing edge(s) by material removal, over the full edge.

      1. Refer to Figure and Figure.

        Use CoMat 05-106 ABRASIVE STONE with portable grinding equipment.

        Continue to remove material until all the damage is removed.

      3. Remove damage on the airfoil surface by material removal.

      1. Refer to Figure.

        Use CoMat 05-106 ABRASIVE STONE and/or CoMat 05-111 EMERY POLISHING PAPER, with portable grinding equipment.

        Continue to remove material until all the damage is removed.

        The maximum depth to remove the damage must not be more thjan 0.005in (0.13mm).

        The diameter of the repaired area(s) is to be 50 times the depth when completed.

      4. Make smooth the repaired area(s) on all sides.

      1. Make sure all the damage marks are completely removed and the area(s) is/are made smooth into the adjacent material.

      5. Polish the repaired area(s).

      1. Polish the repaired area(s), to remove scratches and to give a surface finish the same as the adjacent material.

        NOTE

        The last polish is to be in a radial direction.

    6. SUBTASK 72-42-40-220-058-A00 Examine the Repaired HP Compressor Outlet Guide Vane Assembly, Assembly A

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

      2. Visually examine and measure the dimensions of the leading, trailing edge(s) and airfoil surfaces.

      1. Discard the outlet guide vane assembly, if more than the limits specified.

        Use dimensional inspection equipment.

    7. SUBTASK 72-42-40-220-058-B00 Examine the Repaired HP Compressor Outlet Guide Vane Assembly, Assembly B

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

      2. Visually examine and measure the dimensions of the leading, trailing edge (s) and airfoil surfaces.

      1. Discard the outlet guide vane assembly, if more than the limits specified.

        Use dimensional inspection equipment.

    8. SUBTASK 72-42-40-110-060 Cold Ferric Chloride Etch

      1. Swab etch the repaired area(s).

      1. Refer to the SPM TASK 70-11-39-300-503, SUBTASK 70-11-39-300-001.

        Use chemical cleaning equipment.

    9. SUBTASK 72-42-40-230-054 Do a Crack Test

      1. Do a penetrant crack test on the repaired area(s).

      1. Refer to the SPM TASK 70-23-01-230-501.

        Use penetrant crack test equipment.

        No cracks are permitted.

    10. SUBTASK 72-42-40-350-057 Identify the Repair

      1. Make a mark VRS6041 adjacent to the assembly number.

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

        Use vibro-engraving equipment.

    11. Figure: Repair details and dimensions - Assembly A

    Repair details and dimensions - Assembly A

    Figure: Repair details and dimensions - Assembly A

    Repair details and dimensions - Assembly A

    Figure: Repair details and dimensions - Assembly B

    Repair details and dimensions - Assembly B

    Figure: Repair details and dimensions - Assembly B

    Repair details and dimensions - Assembly B

    Figure: Repair details and dimensions - Assemblies A and B

    Repair details and dimensions - Assemblies A and B

    Figure: Repair details and dimensions - Assemblies A and B

    Repair details and dimensions - Assemblies A and B

Requirements After Job Completion

Follow-On Conditions

NONE
Manufacturer Code:06565
Enterprise Name:SAINT-GOBAIN ABRASIVES
BU Name:SAINT-GOBAIN ABRASIVES
P.O. Box:808
City:TROY
State:NY
Zip Code:12181
Country:USA
Phone Number:1-518-266-2200
Fax Number:1-518-266-2342
Internet:www.saintgobain.com
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:44197
Enterprise Name:SAINT-GOBAIN INDUSTRIAL CERAMICS INC.
BU Name:SAINT-GOBAIN ABRASIVES, INC
Street:ONE NEW BOND STREET
P.O. Box:PO BOX 15008
City:WORCESTER
State:MA
Zip Code:01615-0008
Country:USA
Phone Number:1-508-795-5000
Fax Number:1-508-795-2828
Internet:www.saint-gobain-northamerica.com
Manufacturer Code:K6835
Enterprise Name:MED-LAB LTD
BU Name:MED-LAB LTD
Street:COPELAND ST
City:DERBY
Zip Code:DE1 2PU
Country:GREAT BRITAIN
Phone Number:44-1332-349094
Fax Number:44-1332-371237
Email:sales@med-lab.co.uk
Internet:www.med-lab.co.uk
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:K6835
Supply Number:CoMat 05-106
Type:sp01
Supply Short Name:CoMat 05-106 ABRASIVE STONE
Supply Name:CoMat 05-106 ABRASIVE STONE
Specification Groups:
Doc NumberType
(SS-S-736/2/26) (A-A-3068/2-26)SQUARE FINE SS-S-736 TYPE II CLASS A1
Suppliers:
ManufacturerRemarks
K6835
KC1D9
Manufacturer Code:44197
Supply Number:CoMat 05-109
Type:sp01
Supply Short Name:CoMat 05-109 SILICON CARBIDE ABRASIVE TAPE
Supply Name:CoMat 05-109 SILICON CARBIDE ABRASIVETAPE
Specification Groups:
Doc NumberType
GRIT SIZE 150
Suppliers:
ManufacturerRemarks
44197
IE441
K3895
K6835
LOCAL
Manufacturer Code:X111X
Supply Number:CoMat 05-110
Type:sp01
Supply Short Name:CoMat 05-110 EMERY POLISHING PAPER
Supply Name:CoMat 05-110 EMERY POLISHING PAPER
Specification Groups:
Doc NumberType
DISCONTINUED
Suppliers:
ManufacturerRemarks
X111X
Manufacturer Code:44197
Supply Number:CoMat 05-111
Type:sp01
Supply Short Name:CoMat 05-111 EMERY POLISHING PAPER
Supply Name:CoMat 05-111 EMERY POLISHING PAPER
Specification Groups:
Doc NumberType
FEPA GRIT SIZE P280 OR P240 EMERY POLISHING PAPER OR ALUMINUM OXIDE ABRASIVE PAPER
Suppliers:
ManufacturerRemarks
44197
K6835
KC1D9
LOCAL
Manufacturer Code:LOCAL
Tool Number:Chemical cleaning equipment
Tool Name:Chemical cleaning equipment
Manufacturer Code:LOCAL
Tool Number:Dimensional inspection equipment
Tool Name:Dimensional inspection equipment
Manufacturer Code:LOCAL
Tool Number:Penetrant crack test equipment
Tool Name:Penetrant Crack Test Equipment
Manufacturer Code:LOCAL
Tool Number:Portable grinding equipment
Tool Name:Portablegrinding equipment
Manufacturer Code:LOCAL
Tool Number:Vibro-engraving equipment
Tool Name:Vibro-engraving equipment