TASK 72-41-33-300-002 HPC Stage 3 Variable Stator Vane Shroud Half Seal - Replace The Lining On The Seal Or Shroud, Repair-002 (VRS6038)

DMC:V2500-A0-72-41-3323-00A-920A-C|Issue No:003.00|Issue Date:2019-05-01

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 72-41-33-300-002 HPC Stage 3 Variable Stator Vane Shroud Half Seal - Replace The Lining On The Seal Or Shroud, Repair-002 (VRS6038)

Effectivity

FIG/ITEM

PART NO.

ASSEMBLY

02-150

6A1093

A

02-200

6A7719

B

02-200

6B1156

C

Material of component

PART IDENT

MATERIAL

HP compressor stage 3 half ring seal or half shroud assembly

Aluminium alloy

General

This repair must only be done when the instruction to do so is given in 72-41-33 Inspection/Check.

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 03-036 METAL SPRAYING WIRE, Ni,AlLOCALCoMat 03-036
CoMat 03-057 ALUMINIUM ALLOY/POLYESTERCOMPOSITELOCALCoMat 03-057
CoMat 03-089 METAL SPRAYING POWDER Ni/Al (95/5)33870CoMat 03-089
DELETEDLOCALDELETED

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-41-33-325-053 Remove the Lining

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

      2. Machine to remove the abradable lining.

      1. Use dry single-point machining.

      2. Do not remove metal from the half ring seal/half shroud assembly.

    2. SUBTASK 72-41-33-350-080 Remove the Bond Coat

      CAUTION

      THE CHEMICAL STRIP PROCESS CAN CAUSE DAMAGE TO THE PART.

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

      2. Remove the remaining bond coat by one of the methods that follow.

      1. Remove the bond coat by a chemical strip process. Refer to SPM TASK 70-33-59-300-503, SUBTASK 70-33-59-300-002 and SUBTASK 70-33-59-300-008 or SPM TASK 70-33-59-300-503, SUBTASK 70-33-59-300-005.

      2. Remove the bond coat by dry single-point machining.

    3. SUBTASK 72-41-33-110-066 Chemically Clean the Part

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

    4. SUBTASK 72-41-33-220-119 Examine the Part

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

      2. Visually/dimensionally examine the part.

      1. Make sure that the lining and bond coat has been completely removed.

      2. Make sure there is no damage to the parent material.

      3. Make sure all the dimensions are within limits shown.

    5. SUBTASK 72-41-33-230-067 Do a Crack Test

      1. Do a fluorescent penetrant inspection of the repair area by the applicable part number task in TASK 72-41-33-200-000 (INSPECTION-000).

      1. Cracks are not permitted.

    6. SUBTASK 72-41-33-120-053 Prepare the Part for Plasma Coat

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

      2. Grit blast the areas to be sprayed.

        1. Refer to SPM TASK 70-34-18-380-501.

        1. Grit blast outside of the repair area is not permitted.

        2. Use masks or maskants.

    7. SUBTASK 72-41-33-340-053-A00 Apply the Lining, Assembly A and Assembly B

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

      2. Apply the bond coat.

        1. Refer to SPM TASK 70-34-01-340-501, SUBTASK 70-34-01-340-025 or SPM TASK 70-34-01-340-501, SUBTASK 70-34-01-340-010.

        1. For the powder feed plasma spray gun use CoMat 03-089 METAL SPRAYING POWDER Ni/Al (95/5).

        2. For the wire feed combustion spray gun use CoMat 03-036 METAL SPRAYING WIRE, Ni,Al.

        3. Apply a thickness of 0.0030 in. to 0.0050 in. (0.076 mm to 0.127 mm).

      3. Apply the abradable lining.

        1. Refer to SPM TASK 70-34-01-340-501, SUBTASK 70-34-01-340-020.

        2. Apply a sufficient thickness to allow for machining.

        3. Also spray a test piece to examine for hardness.

      4. After the coat is applied and the part is cooled, remove the mask.

      1. Refer to SPM TASK 70-11-26-300-503.

    8. SUBTASK 72-41-33-340-053-B00 Apply the Lining, Assembly C

    1. Refer to Figure and Figure.

      2. Apply the bond coat.

        1. Refer to SPM TASK 70-34-01-340-501, SUBTASK 70-34-01-340-025 or SPM TASK 70-34-01-340-501, SUBTASK 70-34-01-340-010.

        1. For the powder feed plasma spray gun use CoMat 03-089 METAL SPRAYING POWDER Ni/Al (95/5).

        2. For the wire feed combustion spray gun use CoMat 03-036 METAL SPRAYING WIRE, Ni,Al.

        3. Apply a thickness of 0.0030 in. to 0.0050 in. (0.076 mm to 0.127 mm).

      3. Apply the abradable lining.

        1. Refer to SPM TASK 70-34-01-340-501, SUBTASK 70-34-01-340-020.

        2. Apply a sufficient thickness to allow for machining.

        3. The thickness of the abradable lining must not be more than a maximum of 0.126 in. (3.20 mm).

        4. Also spray a test piece to examine the spray hardness.

      4. After the coat is applied and the part is cooled, remove the mask.

      1. Refer to SPM TASK 70-11-26-300-503.

    9. SUBTASK 72-41-33-220-120 Examine the Part

      1. Visually examine the part.

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

      2. Do a hardness test on the test spray sample.

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

        1. The average hardness must be 55 to 85 R15Y, with the outer limits of 50 R15Y minimum and 90 R15Y maximum.

    10. SUBTASK 72-41-33-325-055 Machine the Lining

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

      2. Machine the lining.

      1. Use dry single-point machining.

      2. Do not remove metal from the half ring seal/half shroud assembly.

    11. SUBTASK 72-41-33-220-121 Examine the Part

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

      2. Visually/dimensionally examine the lining.

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

    12. SUBTASK 72-41-33-350-069 Identify the Repair

      1. Vibration peen VRS6038 adjacent to the part number.

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

    13. SUBTASK 72-41-33-380-055 Apply the Surface Protection

    1. Refer to Figure and Figure.

      2. Apply the surface protection as necessary.

      1. Refer to the SPM TASK 70-38-02-300-503.

    14. Figure: Repair Dimensions for Assembly A

    Repair Dimensions for Assembly A

    Figure: Repair Dimensions for Assembly A

    Repair Dimensions for Assembly A

    Figure: Repair Dimensions for Assembly A

    Repair Dimensions for Assembly A

    Figure: Repair Details and Dimensions - Assembly B

    Repair Details and Dimensions - Assembly B

    Figure: Repair Dimensions for Assembly B and C

    ANGULAR DIMENSIONS IN DEGREES AND DECIMAL PARTS OF A DEGREE

    Legend

    ANGULAR DIMENSIONS IN DEGREES AND DECIMAL PARTS OF A DEGREE

    Close

    Figure: Repair Dimensions for Assembly B

    Repair Dimensions for Assembly B

    Figure: Repair Dimensions for Assembly C

    Repair Dimensions for Assembly C

    Figure: Repair Dimensions for Assembly B and C

    Repair Dimensions for Assembly B and C

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised figures 1, 2, 3, 5, 6, 7, and 8. (18VG289)

Manufacturer Code:33870
Enterprise Name:PRAXAIR SURFACE TECHNOLOGIES INC.
BU Name:PRAXAIR SURFACE TECHNOLOGIES INC.
Street:1500 POLCO STREET
City:INDIANAPOLIS
State:IN
Zip Code:46222
Country:USA
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
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:LOCAL
Supply Number:CoMat 03-057
Type:sp01
Supply Short Name:CoMat 03-057 ALUMINIUM ALLOY/POLYESTERCOMPOSITE
Supply Name:CoMat 03-057 ALUMINIUM ALLOY/POLYESTERCOMPOSITE
Specification Groups:
Doc NumberType
MSRR9507/15METCO 601NS
OMAT:3/143MIL-P-85856/22
JCR-022MIL-P-85856/22
Suppliers:
ManufacturerRemarks
LOCAL
39918
IE103
IE195
IE200
K1030
K6835
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:LOCAL
Supply Number:DELETED
Type:sp01
Supply Short Name:DELETED
Supply Name:DELETED
Specification Groups:
Doc NumberType
DELETED
Suppliers:
ManufacturerRemarks
LOCAL