TASK 72-41-21-300-090 HPC Heatshield Retainers - Weld Repair The HPC Stage 7 Rear Heatshield Retainer Damaged/Worn Location Hole(s), Repair-090 (VRS6633)

DMC:V2500-A0-72-41-2141-00A-627A-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 72-41-21-300-090 HPC Heatshield Retainers - Weld Repair The HPC Stage 7 Rear Heatshield Retainer Damaged/Worn Location Hole(s), Repair-090 (VRS6633)

Effectivity

FIG/ITEM

PART NO.

03-880

6A3993

Assembly A

03-880

6A4259

Assembly B

03-880

6A6506

Assembly C

Material of component

PART IDENT

SYMBOL

MATERIAL

HP Compressor Rear Heatshield Retainer, Stage 7

EAK or EBL

EAE

Modified 12 percent Chromium steel

11.5 percent Chromium, 3 percent Nickel, 1.75 percent Molybdenum and 1.5 percent Cobalt

General

This Repair must only be done when the instruction to do so is given in TASK TASK 72-41-21-200-000 (INSPECTION-000).

This Repair allows worn/damaged location hole(s) in the HP Compressor Rear Heatshield Retainer, Stage 7, to be repaired by weld.

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 Rear Heatshield Retainer, Stage 7 - Replace the surface protection, refer to TASK 72-41-21-300-073 (VRS6309).

HP Compressor Rear Heatshield Retainer, Stage 7 - Replace loose or damaged rivets and/or a damaged plate, refer to TASK 72-41-21-300-069 (VRS6308).

NOTE

  1. Equivalent materials or equipment can be used.

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
Standard workshop equipmentLOCALStandard workshop equipment
Abrasive blast equipmentLOCALAbrasive blast equipment
Dry blast equipmentLOCALDry blast equipment
BrushLOCALBrush

Vacuum assisted

Welding equipmentLOCALWelding equipment

Argonarc

Heat treatment equipmentLOCALHeat treatment equipment
Portablegrinding equipmentLOCALPortable grinding equipment
Drilling machineLOCALDrilling machine
Boring machineLOCALBoring machine
Workshop inspection equipmentLOCALWorkshop inspection equipment
Vibrating marking pencilLOCALVibrating marking pencil

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 03-181 WELDING WIRE 12% Cr. STEELLOCALCoMat 03-181
CoMat 05-003 ABRASIVE MEDIUM ALUMINUM OXIDE, 120/220 GRADELOCALCoMat 05-003
CoMat 05-106 ABRASIVE STONEK6835CoMat 05-106
CoMat 05-110 EMERY POLISHING PAPER0AM53CoMat 05-110
CoMat 05-111 EMERY POLISHING PAPER06565CoMat 05-111
CoMat 06-022 FLUORESCENT PENETRANT (POST-EMULSIFIED ULTRA HIGH SENSITIVITY)LOCALCoMat 06-022

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-41-21-350-184 Remove Heatshield End Plate

      1. Remove the heatshield end plate, as necessary.

      1. Refer to Repair, VRS6308 TASK 72-41-21-300-069 (REPAIR-069).

    2. SUBTASK 72-41-21-350-185-A00 Remove Damage from the HP Compressor Rear Heatshield Retainer, Stage 7, Assembly A

    1. Refer to Figure, Figure and Figure.

      2. Remove the damage from the location hole(s), as necessary.

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

      3. Remove no more material than is necessary.

      4. Remove damage to depth.

      5. Use standard workshop equipment.

    3. SUBTASK 72-41-21-350-185-B00 Remove Damage from the HP Compressor Rear Heatshield Retainer Stage 7, Assembly B

    1. Refer to Figure and Figure.

      2. Remove the damage from the location hole(s), as necessary.

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

      3. Remove no more material than is necessary.

      4. Remove damage to depth.

      5. Use standard workshop equipment.

    4. SUBTASK 72-41-21-350-185-C00 Remove Damage from the HP Compressor Rear Heatshield Retainer Stage 7, Assembly C

    1. Refer to Figure and Figure.

      2. Remove the damage from the location hole(s), as necessary.

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

      3. Remove no more material than is necessary.

      4. Remove damage to depth.

      5. Use standard workshop equipment.

    5. SUBTASK 72-41-21-110-184 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 and SUBTASK 70-11-39-300-002.

      2. Use chemical cleaning equipment.

    6. SUBTASK 72-41-21-230-206 Do a Crack Test

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

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

      3. Cracks are not permitted.

    7. SUBTASK 72-41-21-110-185 Chemically Clean

      1. Chemically clean the HP Compressor Rear Heatshield Retainer, Stage 7.

      2. Use chemical cleaning equipment.

    8. SUBTASK 72-41-21-120-082 Prepare the Part for Repair

      CAUTION

      SURFACES FOR REPAIR MUST BE FULLY CLEANED AND NOT TOUCHED BY HAND.

      CAUTION

      CLEAN COTTON OR POLYTHENE GLOVES MUST BE WORN.

      2. Abrasive blast the areas to be repaired.

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

    3. Remove the adhesive tape (masking).

      4. Clean the heatshield retainer.

      1. Make sure that all the adhesive grit has been removed.

      2. Use a dry air blast or a vacuum assisted brush.

    9. SUBTASK 72-41-21-310-051-A00 Weld Build-Up Worn/Damaged Location Hole(s) in the HP Compressor Rear Heatshield Retainer, Stage 7, Assembly A

      CAUTION

      DO NOT ALLOW TOO MUCH HEAT TO BE APPLIED DURING THE WELD OPERATION.

    1. Refer to Figure, Figure and Figure.

      2. Weld build-up the weld/damage location hole(s).

      2. Use CoMat 03-181 WELDING WIRE 12% Cr. STEEL, with argonarc welding equipment.

      3. Apply sufficient weld, to allow the location hole(s) to be be machined to the diamensions given.

    10. SUBTASK 72-41-21-310-051-B00 Weld Build-Up Worn/Damaged Location Hole(s) in the HP Compressor Rear Heatshield Retainer, Stage 7, Assembly B

      CAUTION

      DO NOT ALLOW TOO MUCH HEAT TO BE APPLIED DURING THE WELD OPERATION.

    1. Refer to Figure and Figure.

      2. Weld build-up the weld/damage location hole(s).

      2. Use CoMat 03-181 WELDING WIRE 12% Cr. STEEL, with argonarc welding equipment.

      3. Apply sufficient weld, to allow the location hole(s) to be be machined to the diamensions given.

    11. SUBTASK 72-41-21-310-051-C00 Weld Build-Up Worn/Damaged Location Hole(s) in the HP Compressor Rear Heatshield Retainer, Stage 7, Assembly C

      CAUTION

      DO NOT ALLOW TOO MUCH HEAT TO BE APPLIED DURING THE WELD OPERATION.

    1. Refer to Figure and Figure.

      2. Weld build-up the weld/damage location hole(s).

      2. Use CoMat 03-181 WELDING WIRE 12% Cr. STEEL, with argonarc welding equipment.

      3. Apply sufficient weld, to allow the location hole(s) to be be machined to the diamensions given.

    12. SUBTASK 72-41-21-370-051 Heat-Treat the HP Compressor Rear Heatshield Retainer, Stage 7

      1. Heat-treat the heatshield retainer, in a vacuum or controlled atmosphere.

      1. Refer to the SPM TASK 70-31-02-310-501-001.

      2. Use heat treatment equipment.

      3. Heat-Treat data

      4. Heat to a temperature of 1202 deg F (650 deg C) for 30 minutes.

      5. Cool down to room temperature in air or argon.

    13. SUBTASK 72-41-21-350-186 Prepare the Welded Area for Machining

      CAUTION

      DO NOT APPLY TOO MUCH PRESSURE DURING POLISH OPERATION, IN ORDER TO PREVENT A BAD EFFECT ON THE PROPERTY OF THE MATERIAL.

      1. Dress the weld area around the location hole(s).

      1. Make sure the weld area makes a continuous surface with the adjacent material.

      2. Use a portable grinding machine, with standard workshop equipment.

      2. Polish the repaired area.

      1. Polish to remove any scratches and give a surface finish the same as the adjacent material.

    14. SUBTASK 72-41-21-323-073 Machine the HP Compressor Rear Heatshield Retainer Stage 7, Assembly A

    1. Refer to Figure, Figure and Figure.

      2. Set up the HP Compressor Rear Heatshield Retainer Stage 7.

      1. Use a suitable boring machine or drilling machine, with a locally made fixture.

      3. Machine the location hole(s).

      1. Machine the location hole(s) to the dimensions given.

      2. Use standard workshop equipment.

      4. Remove sharp edges from the location hole(s).

      1. Use standard workshop equipment.

    15. SUBTASK 72-41-21-323-073-B00 Machine the HP Compressor Rear Heatshield Retainer Stage 7, Assembly B

    1. Refer to Figure and Figure.

      2. Set up the HP Compressor Rear Heatshield Retainer Stage 7.

      1. Use a suitable boring machine or drilling machine, with a locally made fixture.

      3. Machine the location hole(s).

      1. Machine the location Hole(s) to the dimensions given.

      2. Use standard workshop equipment.

      4. Remove sharp edges from the location hole(s).

      1. Use standard workshop equipment.

    16. SUBTASK 72-41-21-323-073-C00 Machine the HP Compressor Rear Heatshield Retainer Stage 7, Assembly C

    1. Refer to Figure and Figure.

      2. Set up the HP Compressor Rear Heatshield Retainer Stage 7.

      1. Use a suitable boring machine or drilling machine, with a locally made fixture.

      3. Machine the location hole(s).

      1. Machine the location Hole(s) to the dimensions given.

      2. Use standard workshop equipment.

      4. Remove sharp edges from the location hole(s).

      1. Use standard workshop equipment.

    17. SUBTASK 72-41-21-110-186 Chemically Clean

      1. Chemically clean the HP Compresor Rear Heatshield Retainer, Stage 7.

      2. Use chemical cleaning equipment.

    18. SUBTASK 72-41-21-110-187 Cold Ferric Chloride Etch

      1. Swab etch the repaired area(s).

      1. Refer to TASK 70-11-39-300-503,SUBTASK 70-11-39-300-001 and SUBTASK 70-11-39-300-002.

      2. Use chemical cleaning equipment.

    19. SUBTASK 72-41-21-230-207 Do a Crack Test

      1. Do a local penetrant crack test of the repaired location hole(s).

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

      3. Cracks are not permitted.

    20. SUBTASK 72-41-21-220-505-A00 Examine the Location Hole(s), Assembly A

    1. Refer to Figure, Figure and Figure.

      2. Visually examine and measure the dimension of the location hole(s) in the HP Compressor Rear Heatshield Retainer , Stage 7.

      1. Make sure the location hole(s) are to the dimensions given.

      2. Make sure there is no distortion of the heatsheild.

      3. Use workshop inspection equipment.

      3. If the location hole(s) are more than the given limits.

      1. Reject.

      2. Do Step again.

      4. If the heatshield is distorted.

      1. Discard.

    21. SUBTASK 72-41-21-220-505-B00 Examine the Location Hole(s), Assembly B

    1. Refer to Figure and Figure.

      2. Visually examine and measure the dimension of the location hole(s) in the HP Compressor Rear Heatshield Retainer , Stage 7.

      1. Make sure the location hole(s) are to the dimensions given.

      2. Make sure there is no distortion of the heatsheild.

      3. Use workshop inspection equipment.

      3. If the location hole(s) are more than the given limits.

      1. Reject.

      2. Do Step again.

      4. If the heatshield is distorted.

      1. Discard.

    22. SUBTASK 72-41-21-220-505-C00 Examine the Location Hole(s), Assembly C

    1. Refer to Figure and Figure.

      2. Visually examine and measure the dimension of the location hole(s) in the HP Compressor Rear Heatshield Retainer , Stage 7.

      1. Make sure the location hole(s) are to the dimensions given.

      2. Make sure there is no distortion of the heatsheild.

      3. Use workshop inspection equipment.

      3. If the location hole(s) are more than the given limits.

      1. Reject.

      2. Do Step again.

      4. If the heatshield is distorted.

      1. Discard.

    23. SUBTASK 72-41-21-350-187 Identify the Repair

      1. Make a mark VRS6633 adjacent to the part number.

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

      2. Use vibro-engraving equipment.

    24. SUBTASK 72-41-21-350-188 Replace the Heatshield End Plate

      1. Replace the heatshield end plate, as necessary.

      1. Refer to VRS6308, TASK 72-41-21-300-069 (REPAIR-069).

    25. SUBTASK 72-41-21-380- Replace the Surface Protection

      1. Replace the surface protection.

      1. Refer to VRS6309,TASK 72-41-21-300-073 (REPAIR-073).

    26. Figure: Repair details and diamensions, Assembly A

    Repair details and diamensions, Assembly A

    Figure: Repair details and diamensions, Assembly A

    Repair details and diamensions, Assembly A

    Figure: Repair details and diamensions, Assembly A

    Repair details and diamensions, Assembly A

    Figure: Repair details and diamensions, Assembly B

    Repair details and diamensions, Assembly B

    Figure: Repair details and diamensions, Assembly B

    Repair details and diamensions, Assembly B

    Figure: Repair details and diamensions, Assembly C

    Repair details and diamensions, Assembly C

    Figure: Repair details and diamensions, Assembly C

    Repair details and diamensions, Assembly C

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: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: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:LOCAL
Supply Number:CoMat 03-181
Type:sp01
Supply Short Name:CoMat 03-181 WELDING WIRE 12% Cr. STEEL
Supply Name:CoMat 03-181 WELDING WIRE 12% Cr. STEEL
Specification Groups:
Doc NumberType
MSRR9500/10JETHETE M190 AMS 5823 AMS 5822
OMAT:3/54JETHETE M190 AMS 5823 AMS 5822
Suppliers:
ManufacturerRemarks
LOCAL
IE306
2R602
IE441
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: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: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:X222X
Supply Number:CoMat 06-022
Type:sp01
Supply Short Name:CoMat 06-022 FLUORESCENT PENETRANT (POST-EMULSIFIED ULTRA HIGH SENSITIVITY)
Supply Name:CoMat 06-022 FLUORESCENT PENETRANT (POST-EMULSIFIED ULTRA HIGH SENSITIVITY)
Specification Groups:
Doc NumberType
ARDROX 985-P14 OMAT: 652 (CHEMETALL OAKITE 985-P14)It is not permitted to mix the selected CoMat 06‐022 letter suffix material with other CoMat 06‐022 letter suffix materials. Where CoMat 06‐022 is specified with no suffix, use one of the CoMat 06‐ 022 letter suffix materials.
Suppliers:
ManufacturerRemarks
X222X
Link not Found
Manufacturer Code:LOCAL
Tool Number:Boring machine
Tool Name:Boring machine
Manufacturer Code:LOCAL
Tool Number:Brush
Tool Name:Brush
Manufacturer Code:LOCAL
Tool Number:Chemical cleaning equipment
Tool Name:Chemical cleaning equipment
Manufacturer Code:LOCAL
Tool Number:Drilling machine
Tool Name:Drilling machine
Link not Found
Link not Found
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
Link not Found
Link not Found
Manufacturer Code:LOCAL
Tool Number:Welding equipment
Tool Name:Welding equipment
Manufacturer Code:LOCAL
Tool Number:Workshop inspection equipment
Tool Name:Workshop inspection equipment