TASK 72-41-21-300-093 HPC Stage 10 Case - Replace The Seal Retainer Coating On The Stage 10 Case And With The Stage 11 Rotor Path Liners, Repair-093 (VRS6533)

DMC:V2500-A0-72-41-2110-02A-920A-C|Issue No:006.00|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 72-41-21-300-093 HPC Stage 10 Case - Replace The Seal Retainer Coating On The Stage 10 Case And With The Stage 11 Rotor Path Liners, Repair-093 (VRS6533)

Effectivity

FIG/ITEM

PART NO

ASSEMBLY

04-350

6A3389

A

04-350

6A5436

B

04-350

6A5438

A

04-350

6A5624

C

04-350

6A5676

B

04-350

6A6512

C

04-350

6A6551

D

04-350

6A7531

D

04-350

6B1435

E

Material of components

PART IDENT

SYMBOL

MATERIAL

HP Compressor Stage 10 Case and Stage 10 Case with Stage 11 Rotor Path

N/A

Nickel Based Alloy

General Data

This repair must only be done when the instruction to do so is given in 72-41-21 Inspection or instructed by VRS6331 while performing the replacement of a worn seal ring.

Case and sealing ring retainer to be kept as a matched pair.

If the seal ring retainer is damaged then replace with new, refer to IPC reference HPC Ring Cases And Related Parts (72-41-21, 04-404) for applicable standard of replacement part.

Case and sealing ring retainer must be assembled again in accordance with VRS6331.

For Assembly D and E cases:

If the repair of Stage 11 Rotor Path liner is necessary, then VRS6023 must be done for the removal of the rotor path liner at the same time as this repair procedure, for convenience.

If the repair of Stage 11 Rotor Path liner is not necessary, then apply masking to the rotor path liner surface AF for coating protection against damage. Refer to SPM TASK 70-11-35-110-501.

Because of the chemical process for liner removal the part must be stripped of all attaching parts and surface protection removed, see below for related repairs.

Preliminary Requirements

Pre-Conditions

Action/ConditionData Module/Technical Publication
Make sure that all the cleaning and inspection procedures are done before this repair.

Support Equipment

NONE

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 01-025 NITRIC ACID HNO3, TECHNICAL GRADELOCALCoMat 01-025
CoMat 03-036 METAL SPRAYING WIRE, Ni,AlLOCALCoMat 03-036
CoMat 03-089 METAL SPRAYING POWDER Ni/Al (95/5)00741CoMat 03-089
CoMat 03-239 METAL SPRAYING POWDER, CHROMIUM CARBIDE/NICHROME 75/25, FINE00BB6CoMat 03-239
CoMat 05-020 WATERPROOF SILICON CARBIDE1E1X8CoMat 05-020
CoMat 05-021 WATERPROOF SILICON CARBIDE1E1X8CoMat 05-021
DELETEDLOCALDELETED

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-41-21-220-676 Find Current Location of the Seal Retainer Coating Surface AG

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

    2. Measure and record dimension X for subsequent final machining purposes.

    2. SUBTASK 72-41-21-110-254 Remove the Surface Protection from Case Faces at AG, Assembly A and B

    1. Refer to Figure.

      2. Remove the surface protection from face AG inner and outer casing faces, as necessary.

      2. Remove minimum base metal.

    3. NOTE

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

    3. SUBTASK 72-41-21-110-255 Seal the Lining at AF, Assembly D and E

    1. Refer to Figure or Figure.

      2. Seal the lined surface AF.

    4. SUBTASK 72-41-21-110-256 Machine to Remove the Seal Retainer Coating at AG

      2. Set-up the component to run true and square to the machine axis.

      1. Use a locally made jig to hold and support the component during machining.

      3. Remove the majority of seal retainer coating AG per TASK 70-32-07-100-501.

      1. Refer to Figure, Figure, Figure and Figure for machining details.

      2. Machine minimum material to remove coating.

        3. Machine retainer coating AG for Assemblies A, B, C and D.

        1. Machine 0.010 in. (0.25 mm) maximum in depth.

        4. Grind retainer coating AG for Assemblies E.

        1. Grind 0.010 in. (0.25 mm) maximum in depth.

      5. If all coating material is removed then continue with Step, SUBTASK 72-41-21-110-259.

      6. If all coating material is not removed, then continue with Step, SUBTASK 72-41-21-110-257.

    5. SUBTASK 72-41-21-110-257 Chemically Remove the Seal Retainer Coating at AG

      2. Chemically remove the seal retainer coating material.

      1. Refer to SPM TASK 70-33-59-300-503 with the following exception:

    6. SUBTASK 72-41-21-110-259 Blast to Remove Remaining Seal Retainer Coating at AG

      2. Abrasive blast to remove remaining coating material from base metal.

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

    7. SUBTASK 72-41-21-110-260 Clean the Part

      1. Aqueous degrease the part.

      1. Refer to SPM TASK 70-11-03-300-503.

    8. SUBTASK 72-41-21-220-677 Examine the Part

      2. Visually examine machined surface at AG.

      1. Make sure all the coating material is removed.

      3. Measure depth AH (for Assemblies A, B, C and D).

      1. If the depth is not more than 0.0157 in. (0.40 mm), accept.

      2. If the depth is more than 0.0157 in. (0.40 mm), reject.

      4. Measure depth AH (for Assembly E).

      1. If the depth is not more than 0.0181 in. (0.46 mm), accept.

      2. If the depth is more than 0.0181 in. (0.46 mm), reject.

    9. SUBTASK 72-41-21-110-261 Cold Ferric Chloride Etch

      2. Etch the repaired area (surface AG).

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

    10. SUBTASK 72-41-21-230-242 Do a Crack Test

      1. Do the penetrant crack test on the machined area at AG.

      1. Refer to TASK 72-41-21-200-000 and applicable part number.

      2. Cracks are not permitted.

    11. SUBTASK 72-41-21-110-262 Chemically Clean the Part

      1. Aqueous degrease the part.

      1. Refer to SPM TASK 70-11-03-300-503.

    12. SUBTASK 72-41-21-340-068 Apply the Coating

    2. Prepare the part for coating per SPM TASK 70-34-18-380-501.

      3. Apply coating to surface AG by one of the following options.

      1. Use CoMat 03-036 METAL SPRAYING WIRE, Ni,Al for Assembly A, B, C and D. Refer to TASK 70-34-01-340-501, SUBTASK 70-34-01-340-010.

      2. Use CoMat 03-089 METAL SPRAYING POWDER Ni/Al (95/5) for Assembly A, B, C and D. Refer to TASK 70-34-01-340-501, SUBTASK 70-34-01-340-025.

      4. Apply a layer of sufficient thickness to let the final machining of surface AG without voids or missing material.

      4. After the coat is applied and the part is cool, remove the mask or maskants.

      1. Remove the tape residue per SPM TASK 70-11-26-300-503.

    13. SUBTASK 72-41-21-220-678 Examine the Coating

      2. Examine the repaired area.

      1. Refer to SPM TASK 70-34-01-340-501, SUBTASK 70-34-01-340-002.

    14. SUBTASK 72-41-21-324-055 Final Machine Surface AG

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

      2. Set-up the component to run true and square to the machine axis.

      1. Use a lathe or grinding machine with dial test indicator for machine set-up for Assembly A, B, C and D.

      2. Use a grinding machine with dial test indicator for machine set-up for Assembly E.

      3. Use a locally made jig to hold and support the component during machining.

    3. Finish surface AG per SPM TASK 70-32-07-100-501.

    4. Remove burrs.

    15. SUBTASK 72-41-21-220-679 Examine the Repair Area

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

      2. Visually examine and measure the dimensions at AG.

      1. Make sure the part conforms to dimensions and requirements shown in applicable figure and dimension X from Step is repaired in the specified tolerance limits.

    16. SUBTASK 72-41-21-350-247-A00 Identify the Repair, Assembly A

    1. Refer to Figure.

      2. Vibration peen VRS6533 adjacent to the assembly number.

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

      3. Touch-up the surface protection at repair identification mark location.

      1. Refer to SPM TASK 70-38-21-380-501, SUBTASK 70-38-21-380-010.

    17. SUBTASK 72-41-21-350-247-B00 Identify the Repair, Assembly B, Assembly C, Assembly D and Assembly E

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

      2. Vibration peen VRS6533 adjacent to the assembly number.

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

    18. 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 D

    Repair Details and Dimensions - Assembly D

    Figure: Repair Details and Dimensions - Assembly E

    Repair Details and Dimensions - Assembly E

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

    Sheet 1

    Legend
    Repair Details and Dimensions - Assembly A and Assembly B

    Sheet 1

    Close

    Figure: Repair Details and Dimensions - Assembly C and Assembly D

    Sheet 2

    Legend
    Repair Details and Dimensions - Assembly C and Assembly D

    Sheet 2

    Close

    Figure: Repair Details and Dimensions - Assembly E

    Repair Details and Dimensions - Assembly E

    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 D

    Repair Details and Dimensions - Assembly D

    Figure: Repair Details and Dimensions - Assembly E

    Repair Details and Dimensions - Assembly E

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised effectivity table. (20VG153)

Manufacturer Code:00741
Enterprise Name:Was BOC GASES
BU Name:DELETED, REFER TO SUPPLIER CODE 46AN7
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: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:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:5FCA4
Supply Number:CoMat 01-025
Type:sp01
Supply Short Name:CoMat 01-025 NITRIC ACID HNO3, TECHNICAL GRADE
Supply Name:CoMat 01-025 NITRIC ACID HNO3, TECHNICAL GRADE
Specification Groups:
Doc NumberType
orTECHNICAL GRADE SP.GR. 1.42 NITRIC ACID
orTECHNICAL GRADE 42 BAUME NITRIC ACID
TECHNICAL GRADE 67.5 WT% NITRIC ACID
Suppliers:
ManufacturerRemarks
5FCA4
K6835
LOCAL
U0PR4
U0SV8
U6726
V272V
Manufacturer Code:LOCAL
Supply Number:CoMat 03-036
Type:sp01
Supply Short Name:CoMat 03-036 METAL SPRAYING WIRE, Ni, Al
Supply Name:CoMat 03-036 METAL SPRAYING WIRE, Ni,Al
Specification Groups:
Doc NumberType
MSRR 9507/101METCO 405 NS
OMAT:3/90MIL-W-6712 NI80
JCR-019
Suppliers:
ManufacturerRemarks
LOCAL
IE103
IE195
IE200
K1030
K6835
39918
Manufacturer Code:33870
Supply Number:CoMat 03-089
Type:sp01
Supply Short Name:CoMat 03-089 METAL SPRAYING POWDER Ni/Al (95/5)
Supply Name:CoMat 03-089 METAL SPRAYING POWDER Ni/Al (95/5)
Specification Groups:
Doc NumberType
PWA 1337 (PW REF)NI-109 or NI-970 or AI 1037
Suppliers:
ManufacturerRemarks
33870
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:1E1X8
Supply Number:CoMat 05-020
Type:sp01
Supply Short Name:CoMat 05-020 WATERPROOF SILICON CARBIDE
Supply Name:CoMat 05-020 WATERPROOF SILICON CARBIDE
Specification Groups:
Doc NumberType
OMAT: 5/33 (RR REF)WATERPROOF SILICON CARBIDE ABRASIVE PAPER, CAMI GRIT DESIGNATION 320 (ANSI B74.18)
JCR-027 (JAEC REF)
JCR-186 (JAEC REF)
Suppliers:
ManufacturerRemarks
1E1X8
LOCAL
K6835
Manufacturer Code:1E1X8
Supply Number:CoMat 05-021
Type:sp01
Supply Short Name:CoMat 05-021 WATERPROOF SILICON CARBIDE
Supply Name:CoMat 05-021 WATERPROOF SILICON CARBIDE
Specification Groups:
Doc NumberType
OMAT: 5/35 (RR REF)WATERPROOF SILICON CARBIDE ABRASIVE PAPER, CAMI GRIT DESIGNATION 240 (ANSI B74.18 )
JCR-188 (JAEC REF)
Suppliers:
ManufacturerRemarks
1E1X8
K6835
LOCAL
Manufacturer Code:LOCAL
Supply Number:DELETED
Type:sp01
Supply Short Name:DELETED
Supply Name:DELETED
Specification Groups:
Doc NumberType
DELETED
Suppliers:
ManufacturerRemarks
LOCAL