TASK 72-41-21-300-086 HPC Stage 12 Rotor Path Ring - Replace The Retainer Hard Coating, Repair-086 (VRS6172)

DMC:V2500-A0-72-41-2130-01A-609A-C|Issue No:004.00|Issue Date:2020-02-01

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 72-41-21-300-086 HPC Stage 12 Rotor Path Ring - Replace The Retainer Hard Coating, Repair-086 (VRS6172)

Effectivity

FIG/ITEM

PART NO.

ASSEMBLY

04-600

6A6552

C

04-600

6B1436

D

04-700

6A3656

A

04-700

6A4166

B

Material of component

PART IDENT

MATERIAL

HP compressor stage 12 rotor path ring

Heat resistant alloy

General

This Repair must only be done when the instruction to do so is given in 72-41-21 Inspection.

This TASK gives the procedure to replace the retainer hard coating on the HP compressor stage 12 rotor path ring, when the coating is worn or damaged.

TASKS identified by SPM TASK are in the Standard Practices and Processes Manual (SPM).

Price and Availability

Refer to International Aero Engines.

Related repairs

HP Compressor Stage 12 Rotor Path Ring - Replace the Rotor Path Lining, refer to Repair VRS6024, TASK 72-41-21-300-022 (REPAIR-022).

NOTE

Equipment and materials necessary to do this repair are in the SPM TASKS given below:
SPM TASK 70-09-00-400-501
SPM TASK 70-11-01-300-503
SPM TASK 70-11-35-110-501
SPM TASK 70-12-02-120-501
SPM TASK 70-23-01-230-501
SPM TASK 70-23-05-230-501
SPM TASK 70-33-59-300-503
SPM TASK 70-34-01-340-501

NOTE

  1. 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.

  2. To identify the consumable materials, refer to the overhaul Processes and Consumables Index (PCI).

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

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Abrasive Blast EquipmentLOCALAbrasive Blast Equipment
Chemical cleaning equipmentLOCALChemical Cleaning Equipment
GlovesLOCALGloves

Cotton or polythene

Dial indicatorLOCALDial indicator
Grinding MachineLOCALGrinding Machine
LatheLOCALLathe
Metal spray equipmentLOCALMetal spray equipment
Penetrant Crack Test EquipmentLOCALPenetrant Crack Test Equipment
Standard workshop equipmentLOCALStandard workshop equipment
BrushLOCALBrush

Vacuum assisted

Vibrating Marking PencilLOCALVibrating Marking Pencil
Workshop inspection equipmentLOCALWorkshop inspection equipment
IAE 3R18232 Lifting beam0AM53IAE 3R18232
IAE 3R18724 Turn/Grind Fixture0AM53IAE 3R18724
IAE 3R19120 Turn/Grind Fixture0AM53IAE 3R19120

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 01-067 ALKALINE PERMANGANATE COMPOUND - DELETED0AM53CoMat 01-067
CoMat 02-001 ADHESIVE TAPE (MASKING)LOCALCoMat 02-001
CoMat 02-006 ADHESIVE TAPE ALUMINIUM FOIL76381CoMat 02-006
CoMat 02-145 STOPPING-OFF COMPOUND1N6B3CoMat 02-145
CoMat 03-239 METAL SPRAYING POWDER, CHROMIUM CARBIDE/NICHROME 75/25, FINE00BB6CoMat 03-239
CoMat 03-240 METAL SPRAYING POWDER, CHROMIUM CARBIDE/NICHROME 75/25, FINEX111XCoMat 03-240
CoMat 05-001 ABRASIVE MEDIUM, ALUMINIUM OXIDE, 20/30 GRADELOCALCoMat 05-001
CoMat 05-046 ALUMINUM OXIDE GRIT62596CoMat 05-046
CoMat 06-063 FLUORESCENT PENETRANT (POST-EMULSIFIED MEDIUM SENSITIVITY)X222XCoMat 06-063

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-41-21-350-126 Seal the Lining

    1. Refer to Figure.

      2. Seal the lined surface AF.

    2. SUBTASK 72-41-21-110-115 Remove the Surface Protection (as necessary)

      1. Remove the surface protection, as necessary.

      2. Use chemical cleaning equipment.

    2. NOTE

      It is not necessary to apply the surface protection again after you do this repair.

    3. SUBTASK 72-41-21-110-116 Remove the Hard Coat

      NOTE

      This SUBTASK is an alternative procedure to Step or Step or Step.

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

      2. Chemically remove the hard coat AE from surface AD.

      1. Refer to SPM TASK 70-33-59-300-503, SUBTASK 70-33-59-300-007.

      2. Use chemical cleaning equipment.

      3. Abrasive blast to remove the hard coat.

      1. Refer to the SPM TASK 70-33-59-300-503, SUBTASK 70-33-59-300-008.

      3. Use abrasive blast equipment.

    4. SUBTASK 72-41-21-325-066-A00 Remove the Hard Coat, Assembly A

      NOTE

      This SUBTASK is an alternative procedure to Step.

    1. Refer to Figure and Figure.

      2. Install the turn/grind fixture on to the machine and set to run true.

      1. Use IAE 3R18232 Lifting beam 1 off, to install IAE 3R18724 Turn/Grind Fixture 1 off in the lathe.

      2. Use a dial test indicator.

      3. Install the HP compressor rotor path ring on the fixture.

      1. Make sure the ring runs true.

      4. Turn to remove the hard coat AE from surface AD.

      1. You must not remove metal from the rotor path ring.

      2. Use a lathe with standard workshop tools.

      5. Remove burrs.

      1. Use standard workshop equipment.

    5. SUBTASK 72-41-21-325-066-B00 Remove the Hard Coat, Assembly B

      NOTE

      This SUBTASK is an alternative procedure to Step.

    1. Refer to Figure and Figure.

      2. Install the turn/grind fixture on to the machine and set to run true.

      1. Use IAE 3R18232 Lifting beam 1 off, to install IAE 3R19120 Turn/Grind Fixture 1 off in the lathe.

      2. Use a dial test indicator.

      3. Install the HP compressor rotor path ring on the fixture.

      1. Make sure the ring runs true.

      4. Turn to remove the hard coat AE from surface AD.

      1. You must not remove metal from the rotor path ring.

      2. Use a lathe with standard workshop equipment.

      5. Remove burrs.

      1. Use standard workshop equipment.

    6. SUBTASK 72-41-21-325-066-C00 Remove the Hard Coat, Assembly C and Assembly D

      NOTE

      This SUBTASK is an alternative procedure to Step.

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

      2. Install the turn/grind fixture on to the machine and set to run true.

      1. Use locally made tool.

      2. Use a dial test indicator.

      3. Install the HP compressor rotor path ring on the fixture.

      1. Make sure the ring runs true.

      4. Turn to remove the hard coat AE from surface AD.

      1. You must not remove metal from the rotor path ring.

      2. Use a lathe with standard workshop equipment.

      5. Remove burrs.

      1. Use standard workshop equipment.

    7. SUBTASK 72-41-21-220-286 Examine the Rotor Path Ring

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

      2. Visually examine surface AD.

      1. Make sure all the hard coat material is removed.

      3. Measure the dimensions of surface AD.

      1. Make sure that the base material of the rotor path ring is not less than the limits given.

    8. SUBTASK 72-41-21-230-129 Do a Crack Test

      1. Do a penetrant crack test on the machined area.

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

      3. Use penetrant crack test equipment.

      4. Cracks are not permitted.

    9. SUBTASK 72-41-21-110-117 Chemically Clean

      1. Chemically clean the rotor path ring.

      1. Refer to the SPM TASK 70-11-01-300-503.

      2. Use chemical cleaning equipment.

    10. SUBTASK 72-41-21-120-061 Abrasive Blast

      CAUTION

      DO NOT TOUCH THE AREAS TO BE REPAIRED AFTER THEY ARE FULLY CLEANED.

      CAUTION

      CLEAN COTTON OR POLYTHENE GLOVES MUST BE WORN.

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

      2. Mask the areas not to be sprayed.

      3. Abrasive blast the rotor path ring of surface AD.

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

      3. Use abrasive blast equipment.

    4. Remove masking tape.

      5. Clean the rotor path ring.

      1. Make sure that all the abrasive grit is removed.

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

    11. SUBTASK 72-41-21-340-060 Apply the Hard Coat

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

      2. Mask the areas not to be sprayed.

      3. Apply the hard coat to surface AD.

      1. Refer to the SPM TASK 70-34-01-340-501, SUBTASK 70-34-01-340-026.

      3. Use metal spray equipment.

      4. Apply a layer of sufficient thickness to get the correct dimensions after the assembly is machined.

    4. Remove the masking tape.

    12. SUBTASK 72-41-21-220-287 Examine the Hard Coat

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

      2. Visually examine and measure the dimensions of the new coat.

      1. Refer to the SPM TASK 70-34-01-340-501.

    13. SUBTASK 72-41-21-324-053-A00 Machine the Hard Coat, Assembly A

    1. Refer to Figure and Figure.

      2. Install the turn/grind fixture to the machine and set to run true.

      1. Use IAE 3R18232 Lifting beam 1 off, to install IAE 3R18724 Turn/Grind Fixture 1 off, in a grinding machine.

      2. Use a dial test indicator.

      3. Install the HP Compressor rotor path ring on the fixture.

      1. Make sure the ring runs true.

    4. Fully grind the hard coat at AE to the dimensions shown.

      5. Remove burrs.

      1. Use standard workshop equipment.

    14. SUBTASK 72-41-21-324-053-B00 Machine the Hard Coat, Assembly B

    1. Refer to Figure and Figure.

      2. Install the turn/grind fixture on to the machine and set to run true.

      1. Use IAE 3R18232 Lifting beam 1 off, to install IAE 3R19120 Turn/Grind Fixture 1 off, in a grinding machine.

      2. Use a dial test indicator.

      3. Install the HP compressor rotor path ring on the fixture.

      1. Make sure the ring runs true.

    4. Fully grind the hard coat at AE to the dimensions shown.

      5. Remove burrs.

      1. Use standard workshop equipment.

    15. SUBTASK 72-41-21-324-053-C00 Machine the Hard Coat, Assembly C and Assembly D

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

      2. Install the turn/grind fixture on to the machine and set to run true.

      1. Use locally made tool.

      2. Use a dial test indicator.

      3. Install the HP compressor rotor path ring on the fixture.

      1. Make sure the ring runs true.

    4. Fully grind the hard coat at AE to the dimensions shown.

      5. Remove burrs.

      1. Use standard workshop equipment.

    16. SUBTASK 72-41-21-220-288 Examine the Repair Area

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

      2. Visually examine and measure the dimensions at AE.

      1. Use workshop inspection equipment.

    17. SUBTASK 72-41-21-230-130 Do a Crack Test

      1. Do a penetrant crack test on the areas around the repaired area.

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

      2. Make sure the coating is sufficiently masked before you apply the solution.

      4. Use penetrant crack test equipment.

      5. Cracks are not permitted.

    18. SUBTASK 72-41-21-110-118 Chemically Clean

      1. Chemically clean the rotor path ring.

      1. Refer to the SPM TASK 70-11-01-300-503.

      2. Use chemical cleaning equipment.

    19. SUBTASK 72-41-21-350-127 Remove the Seal

    1. Refer to Figure, Figure and Figure.

      2. Remove the seal from the lined surface AF.

      1. Refer to the SPM TASK 70-11-35-110-501.

      2. Use standard workshop equipment.

    20. SUBTASK 72-41-21-220-289 Examine the Lining

    1. Refer to Figure, Figure and Figure.

      2. Visually examine the lining at AF.

      1. If damaged, refer to Repair VRS6024, TASK 72-41-21-300-022 (REPAIR-022).

    21. SUBTASK 72-41-21-350-128 Identify the Repair, Assembly A, Assembly B, Assembly C and Assembly D

    1. Refer to Figure, Figure and Figure.

      2. Make a mark VRS6172 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.

    22. Figure: Repair Details and Dimensions - Assembly A and Assembly B

    Repair Details and Dimensions - Assembly A and Assembly B

    Figure: Repair Details and Dimensions - Assembly A, Assembly B and Assembly C

    Repair Details and Dimensions - Assembly A, Assembly B and Assembly C

    Figure: Repair Details and Dimensions - Assembly A and Assembly B

    Repair Details and Dimensions - Assembly A and Assembly B

    Figure: Repair Details and Dimensions - Assembly C

    Repair Details and Dimensions - Assembly C

    Figure: Repair Details and Dimensions - Assembly C

    Repair Details and Dimensions - Assembly C

    Figure: Repair Details and Dimensions - Assembly D

    Repair Details and Dimensions - Assembly D

    Figure: Repair Details and Dimensions - Assembly D

    Repair Details and Dimensions - Assembly D

    Figure: Repair Details and Dimensions - Assembly D

    Repair Details and Dimensions - Assembly D

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised figures. (19VG230)

Manufacturer Code:00BB6
Enterprise Name:INDESTRUCTIBLE PAINT INC
BU Name:INDESTRUCTIBLE PAINT INC
Street:1 INDEPENDENCE DRIVE
City:MONROE
State:CT
Zip Code:06468
Country:USA
Phone Number:1-203-880-9130
Fax Number:1-203-880-9133
Email:dave@indestructiblepaint.com
Internet:www.indestructiblepaint.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:1N6B3
Enterprise Name:HENKEL CORPORATION, MADISON HEIGHTS
BU Name:HENKEL CORPORATION, MADISON HEIGHTS
Street:32100 STEPHENSON HIGHWAY
City:MADISON HEIGHTS
State:MI
Zip Code:48071
Country:USA
Manufacturer Code:62596
Enterprise Name:MICRO ABRASIVES CORPORATION
BU Name:MICRO ABRASIVES CORPORATION
Street:720 SOUTHAMPTON RD
P.O. Box:669
City:WESTFIELD
State:MA
Zip Code:01085-0669
Country:USA
Phone Number:1-413-562-3641
Fax Number:1-413-562-7409
Internet:www.microgrit.com
Manufacturer Code:76381
Enterprise Name:3M COMPANY
BU Name:3M COMPANY
Department:3M CENTER
City:ST PAUL
State:MN
Zip Code:55144-1000
Country:USA
Phone Number:1-651-733-1110
Fax Number:1-651-733-9973
Internet:www.mmm.com
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:X111X
Enterprise Name:N/A – DELETED CONSUMABLE MATERIAL
Manufacturer Code:X222X
Enterprise Name:N/A – REFER TO APPLICABLE COMAT SUFFIX
Manufacturer Code:0AM53
Supply Number:CoMat 01-067
Type:sp01
Supply Short Name:CoMat 01-067 ALKALINE PERMANGANATE COMPOUND - DELETED
Supply Name:CoMat 01-067 ALKALINE PERMANGANATE COMPOUND - DELETED
Specification Groups:
Doc NumberType
DELETED
Suppliers:
ManufacturerRemarks
0AM53
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:K6835
Supply Number:CoMat 02-006
Type:sp01
Supply Short Name:CoMat 02-006 ADHESIVE TAPE ALUMINIUM FOIL
Supply Name:CoMat 02-006 ADHESIVE TAPE ALUMINIUM FOIL
Specification Groups:
Doc NumberType
OMAT: 298 (RR REF)SCOTCH 425
Suppliers:
ManufacturerRemarks
K6835
52152
76381
LOCAL
Manufacturer Code:1N6B3
Supply Number:CoMat 02-145
Type:sp01
Supply Short Name:CoMat 02-145 STOPPING-OFF COMPOUND
Supply Name:CoMat 02-145 STOPPING-OFF COMPOUND
Specification Groups:
Doc NumberType
BONDERITE S-MA 551LA-2 AERO orBONDERITE S-MA 5145 (UK) or
BONDERITE S-MA 522 DIPPINGOMAT: 281 (RR REF)
JCR-051 (JAEC REF)
Suppliers:
ManufacturerRemarks
1N6B3
D8908
F7121
H3221
K6835
Q0706
Manufacturer Code:00BB6
Supply Number:CoMat 03-239
Type:sp01
Supply Short Name:CoMat 03-239 METAL SPRAYING POWDER, CHROMIUM CARBIDE/NICHROME 75/25, FINE
Supply Name:CoMat 03-239 METAL SPRAYING POWDER, CHROMIUM CARBIDE/NICHROME 75/25, FINE
Specification Groups:
Doc NumberType
MSRR 9507/17 (RR REF)METCO 81VF-NS
OMAT:3/190 (RR REF)
Suppliers:
ManufacturerRemarks
00BB6
01FK3
C1840
IE103
K0455
K6835
Manufacturer Code:X111X
Supply Number:CoMat 03-240
Type:sp01
Supply Short Name:CoMat 03-240 METAL SPRAYING POWDER, CHROMIUM CARBIDE/NICHROME 75/25, FINE
Supply Name:CoMat 03-240 METAL SPRAYING POWDER, CHROMIUM CARBIDE/NICHROME 75/25, FINE
Specification Groups:
Doc NumberType
DELETED. USE COMAT 03-239
Suppliers:
ManufacturerRemarks
X111X
Manufacturer Code:LOCAL
Supply Number:CoMat 05-001
Type:sp01
Supply Short Name:CoMat 05-001 ABRASIVE MEDIUM, ALUMINIUM OXIDE, 20/30 GRADE
Supply Name:CoMat 05-001 ABRASIVE MEDIUM, ALUMINIUM OXIDE, 20/30 GRADE
Specification Groups:
Doc NumberType
Use one of the CoMat 05-001 letter suffix alternatives.
Suppliers:
ManufacturerRemarks
LOCAL
Manufacturer Code:62596
Supply Number:CoMat 05-046
Type:sp01
Supply Short Name:CoMat 05-046 ALUMINUM OXIDE GRIT
Supply Name:CoMat 05-046 ALUMINUM OXIDE GRIT
Specification Groups:
Doc NumberType
ALUMINUM OXIDE NO. 60
Suppliers:
ManufacturerRemarks
62596
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:LOCAL
Tool Number:Abrasive Blast Equipment
Tool Name:Abrasive Blast Equipment
Manufacturer Code:LOCAL
Tool Number:Brush
Tool Name:Brush
Link not Found
Manufacturer Code:LOCAL
Tool Number:Dial indicator
Tool Name:Dial indicator
Manufacturer Code:LOCAL
Tool Number:Gloves
Tool Name:Gloves
Manufacturer Code:LOCAL
Tool Number:Grinding Machine
Tool Name:Grinding Machine
Manufacturer Code:0AM53
Tool Number:IAE 3R18232
Tool Name:IAE 3R18232 Lifting beam
Manufacturer Code:0AM53
Tool Number:IAE 3R18724
Tool Name:IAE 3R18724 Turn/Grind Fixture
Manufacturer Code:0AM53
Tool Number:IAE 3R19120
Tool Name:IAE 3R19120 Turn/Grind Fixture
Manufacturer Code:LOCAL
Tool Number:Lathe
Tool Name:Lathe
Manufacturer Code:LOCAL
Tool Number:Metal spray equipment
Tool Name:Metal spray equipment
Link not Found
Link not Found
Manufacturer Code:LOCAL
Tool Number:Vibrating Marking Pencil
Tool Name:Vibrating Marking Pencil
Manufacturer Code:LOCAL
Tool Number:Workshop inspection equipment
Tool Name:Workshop inspection equipment