TASK 72-45-32-300-002 HPT Stage 2 Blade - Touch-Up The Coating, Repair-002 (VRS3242)

DMC:V2500-A0-72-45-3201-00A-609A-C|Issue No:002.00|Issue Date:2018-05-01

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 72-45-32-300-002 HPT Stage 2 Blade - Touch-Up The Coating, Repair-002 (VRS3242)

Effectivity

FIG/ITEM

PART NO.

01-010

2A1102-002

01-010

2A2202

01-010

2A2202-001

01-010

2A2202-002

01-010

2A2202-003

01-010

2A2702

01-010

2A2702-001

01-010

2A4422

01-010

2A4722

01-010

2A4822

01-010

2A8702

01-010

2A8902

01-010

2A9002

Material of component

PART IDENT

SYMBOL

MATERIAL

Stage 2 HPT blade assembly

Cast nickel base alloy

General

The blade assembly blend limits are looked at by the serviceable structure of the blade. If you have many repaired blades in the same turbine assembly at or near the maximum repair limits or that have repair areas, they can affect the turbine efficiency and engine performance.

CoMat 07-057 SLURRY, ALUMINIUM-SILICON or CoMat 02-183 ALUMINIDE COATING - LOCALIZED APPLICATION, LOW ACTIVITY can be used to repair the stage 2 HPT blade assembly to touch-up coating.

This repair must only be done when there is no oxidation or corrosion shown on the base material.

The total maximum blade area to be touch-up coated on the airfoil concave and convex sides is 0.500 sqin. (3.23 sqcm). You can touch-up coat the platform areas as necessary. Refer to Figure or Figure.

Do not use CoMat 07-057 SLURRY, ALUMINIUM-SILICON and CoMat 02-183 ALUMINIDE COATING - LOCALIZED APPLICATION, LOW ACTIVITY or this repair when you replace all the primary coating on the blade.

The practices and processes referred to in the procedure by TASK number are in the SPM.

Price and availability - none

NOTE

Equivalent materials or equipment can be used.
More equipment and materials necessary to do this Repair are given in the SPM TASK 70-09-00-400-501, SPM TASK 70-38-13-380-501 and SPM TASK 70-38-26-380-501.

NOTE

To identify the consumable materials refer to the PCI.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Workshop inspection equipmentLOCALWorkshop inspection equipment

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 02-183 ALUMINIDE COATING - LOCALIZED APPLICATION, LOW ACTIVITYIAE86CoMat 02-183
CoMat 05-029 CAST STEEL SHOT, S110LOCALCoMat 05-029
CoMat 05-032 CAST STEEL SHOT, S17042736CoMat 05-032
CoMat 05-138 SHOT, CAST STEEL, S11081349CoMat 05-138
CoMat 05-176 CAST STEEL SHOT, S17042736CoMat 05-176
CoMat 05-177 CUT WIRE SHOT,CW-14LOCALCoMat 05-177
CoMat 05-178 CUT WIRE SHOT, CW-20LOCALCoMat 05-178
CoMat 05-234 CAST STEEL SHOT, HIGH HARDNESS, S110LOCALCoMat 05-234
CoMat 07-057 SLURRY, ALUMINIUM-SILICON0FGH2CoMat 07-057
DELETEDLOCALDELETED

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-45-32-350-059 Remove the Stage 2 HPT Blade Assembly Root Cover

      1. Remove the blade root cover.

      1. Refer to VRS3361, TASK 72-45-32-300-008 (REPAIR-008).

    2. SUBTASK 72-45-32-350-053-001 Touch-Up the Stage 2 HPT Blade Assembly Coating with CoMat 07-057 Aluminum-Silicon Slurry

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

      2. Do a heat tint inspection on the blade assembly.

      1. Refer to the Heat Tint Inspection in TASK 72-45-32-200-001-A00 (INSPECTION-001, CONFIG-001) or TASK 72-45-32-200-001-B00 (72-45-32-200-001-B00 (INSPECTION-001, CONFIG-002).

      3. Prepare and touch-up the blade assembly coating.

        1. Do the procedure given in the SPM TASK 70-38-14-380-501.

        1. The total maximum blade area to be touch-up coated on the airfoil concave and convex sides is 0.500 sq in. (3.23 sqcm).

        2. You can touch-up coat the platform areas given in the figure.

      5. Do a heat tint inspection on the repaired blade assembly.

        1. Refer to the Heat Tint Inspection in TASK 72-45-32-200-001-A00 (INSPECTION-001, CONFIG-001) or TASK 72-45-32-200-001-B00 (INSPECTION-001, CONFIG-002).

        1. If the heat tint inspection is unsatisfactory, do the touch-up coating repair again.

      6. Do a precipitation heat treat on the repaired blade.

      1. For PN 2A2202, 2A2202-001, 2A2202-002, 2A2202-003, Precipitation Heat Treat at 1600 deg F (871.1 deg C) for 32 hours. Refer to the SPM TASK 70-37-27-370-501.

      2. For PN 2A1102-002, 2A2702, 2A2702-001, 2A4422, 2A4722, 2A4822, 2A8702, 2A8902, 2A9002, Precipitation Heat Treat at 1600 deg F (871.1 deg C) for eight or 12 hours. Refer to the SPM TASK 70-37-27-370-501.

      7. Clean the internal cavity of the blade assembly.

        1. Power flush the vane cavity with water.

        1. Then rinse with hot water and blow dry with compressed air.

      8. Replace the blade root cover.

      1. Replace the blade root cover. Refer to VRS3361, TASK 72-45-32-300-008 (REPAIR-008).

      9. Do an airflow check on the blade assembly.

      1. Refer to TASK 72-45-32-200-001-A00 (INSPECTION-001, CONFIG-001) or TASK 72-45-32-200-001-B00 (INSPECTION-001, CONFIG-002).

    10. Examine the repaired blade assembly.

      11. Identify the repair. Make a mark VRS3242 adjacent to the part number, if necessary.

      1. Make a permanent mark, Refer to the SPM TASK 70-09-00-400-501.

    3. SUBTASK 72-45-32-350-054-002 Touch-Up the Stage 2 HPT Blade Assembly Coating with CoMat 02-183 Cobalt-Aluminum Slurry

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

      2. Do a heat tint inspection on the blade assembly.

      1. Refer to the Heat Tint Inspection in TASK 72-45-32-200-001-A00 (INSPECTION-001, CONFIG-001) or TASK 72-45-32-200-001-B00 (INSPECTION-001, CONFIG-002).

      3. Prepare and touch-up the blade assembly coating.

        1. Do the procedure given in the SPM TASK 70-38-26-380-501.

        1. The total maximum blade area to be touch-up coated on the airfoil concave and convex sides is 0.500 sqin. (3.23 sqcm).

        2. You can touch-up coat the platform areas given in the figure.

      5. Do a heat tint inspection on the repaired blade assembly.

      1. Refer to the Heat Tint Inspection in TASK 72-45-32-200-001-A00 (INSPECTION-001, CONFIG-001) or TASK 72-45-32-200-001-B00 (INSPECTION-001, CONFIG-002).

        If heat tint inspection is unsatisfactory, do the touch-up coating repair again.

      6. Do a precipitation heat treat on the repaired blade.

      1. For PN 2A2202, 2A2202-001, 2A2202-002, 2A2202-003, Precipitation Heat Treat at 1600 deg F (871.1 deg C) for 32 hours. Refer to the SPM TASK 70-37-27-370-501.

      2. For PN 2A1102-002, 2A2702, 2A2702-001, 2A4422, 2A4722, 2A4822, 2A8702, 2A8902, 2A9002, Precipitation Heat Treat at 1600 deg F (871.1 deg C) for eight or 12 hours. Refer to the SPM TASK 70-37-27-370-501.

      7. Clean the internal cavity of the blade assembly.

      1. Power flush the vane cavity with water. Then rinse with hot water and blow dry with compressed air.

      8. Replace the blade root cover.

      1. Replace the blade root cover. Refer to VRS3361, TASK 72-45-32-300-008 (REPAIR-008).

      9. Do an airflow check on the blade assembly.

      1. Refer to TASK 72-45-32-200-001-A00 (INSPECTION-001, CONFIG-001) or TASK 72-45-32-200-001-B00 (INSPECTION-001, CONFIG-002).

    10. Examine the repaired blade assembly.

      11. Identify the repair. Make a mark VRS3242 adjacent to the part number, if necessary.

      1. Make a permanent mark, Refer to the SPM TASK 70-09-00-400-501.

    4. Figure: V2500-A1: Repair Details and Dimensions

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    V2500-A1: Repair Details and Dimensions

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    Figure: V2500-A1: Repair Details and Dimensions

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    V2500-A1: Repair Details and Dimensions

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    Figure: V2500-A1: Repair Details and Dimensions

    Sheet 3

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    V2500-A1: Repair Details and Dimensions

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    Figure: V2500-A5: Repair Details and Dimensions

    Sheet 1

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    V2500-A5: Repair Details and Dimensions

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    Figure: V2500-A5: Repair Details and Dimensions

    Sheet 2

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    V2500-A5: Repair Details and Dimensions

    Sheet 2

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Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Added PN 2A4722, 2A4822 and 2A8702. (17VC501)

Change Type:

Editorial - Remove Deleted CoMat 05-030, CoMat 05-031, CoMat 05-033 and CoMat 05-034 per previous revisions

Manufacturer Code:0FGH2
Enterprise Name:DELETED, DELETED SEE CAGE CODE 33870
Manufacturer Code:42736
Enterprise Name:NATIONAL METAL ABRASIVE INC.
BU Name:NATIONAL METAL ABRASIVE INC.
Street:142 Auble Street
P.O. Box:150
City:Wadsworth
State:Ohio
Zip Code:44281
Country:USA
Phone Number:+1-330-334-1566
Fax Number:+1-330-334-1456
Manufacturer Code:81349
Enterprise Name:DELETED, SEE CAGE CODE 81348
Manufacturer Code:IAE86
Enterprise Name:AQUALON CO
BU Name:AQUALON CO,SEE CAGE CODE 0JXL5
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:LOCAL
Supply Number:CoMat 02-183
Type:sp01
Supply Short Name:CoMat 02-183 ALUMINIDE COATING - LOCALIZED APPLICATION, LOW ACTIVITY
Supply Name:CoMat 02-183 ALUMINIDE COATING - LOCALIZED APPLICATION, LOW ACTIVITY
Suppliers:
ManufacturerRemarks
LOCAL
Manufacturer Code:55807
Supply Number:CoMat 05-029
Type:sp01
Supply Short Name:CoMat 05-029 CAST STEEL SHOT, S110
Supply Name:CoMat 05-029 CAST STEEL SHOT, S110
Specification Groups:
Doc NumberType
AMS 2431/1 ASR 110
Suppliers:
ManufacturerRemarks
55807
Manufacturer Code:55807
Supply Number:CoMat 05-032
Type:sp01
Supply Short Name:CoMat 05-032 CAST STEEL SHOT, S170
Supply Name:CoMat 05-032 CAST STEEL SHOT, S170
Specification Groups:
Doc NumberType
AMS 2431/1 ASR 170
Suppliers:
ManufacturerRemarks
55807
Manufacturer Code:55807
Supply Number:CoMat 05-138
Type:sp01
Supply Short Name:CoMat 05-138 SHOT, CAST STEEL, S110
Supply Name:CoMat 05-138 SHOT, CAST STEEL, S110
Specification Groups:
Doc NumberType
AMS 2431/1 ASR 110, HARDNESS 45-55 HRC
Suppliers:
ManufacturerRemarks
55807
Manufacturer Code:55807
Supply Number:CoMat 05-176
Type:sp01
Supply Short Name:CoMat 05-176 CAST STEEL SHOT, S170
Supply Name:CoMat 05-176 CAST STEEL SHOT, S170
Specification Groups:
Doc NumberType
AMS 2431/1 ASR 170, HARDNESS 45-55 HRC
Suppliers:
ManufacturerRemarks
55807
Manufacturer Code:0FUN2
Supply Number:CoMat 05-177
Type:sp01
Supply Short Name:CoMat 05-177 CUT WIRE SHOT,CW-14
Supply Name:CoMat 05-177 CUT WIRE SHOT,CW-14
Specification Groups:
Doc NumberType
AMS 2431/3 AWCR 14 HARDNESS 45-55 HRC
Suppliers:
ManufacturerRemarks
0FUN2
29978
S5114
Manufacturer Code:0FUN2
Supply Number:CoMat 05-178
Type:sp01
Supply Short Name:CoMat 05-178 CUT WIRE SHOT, CW-20
Supply Name:CoMat 05-178 CUT WIRE SHOT, CW-20
Specification Groups:
Doc NumberType
AMS 2431/3 AWCR 20 HARDNESS 45-55 HRC
Suppliers:
ManufacturerRemarks
0FUN2
29978
S5114
Manufacturer Code:55807
Supply Number:CoMat 05-234
Type:sp01
Supply Short Name:CoMat 05-234 CAST STEEL SHOT, HIGH HARDNESS, S110
Supply Name:CoMat 05-234 CAST STEEL SHOT, HIGH HARDNESS, S110
Specification Groups:
Doc NumberType
AMS 2431/2 ASH 110, HARDNESS 55-65 HRC
Suppliers:
ManufacturerRemarks
55807
Manufacturer Code:0FGH2
Supply Number:CoMat 07-057
Type:sp01
Supply Short Name:CoMat 07-057 SLURRY, ALUMINIUM-SILICON
Supply Name:CoMat 07-057 SLURRY, ALUMINIUM-SILICON
Specification Groups:
Doc NumberType
OMAT:7/129(RR REF) PWA 596-1SERMALOY J
Suppliers:
ManufacturerRemarks
0FGH2
Manufacturer Code:LOCAL
Supply Number:DELETED
Type:sp01
Supply Short Name:DELETED
Supply Name:DELETED
Specification Groups:
Doc NumberType
DELETED
Suppliers:
ManufacturerRemarks
LOCAL
Manufacturer Code:LOCAL
Tool Number:Workshop inspection equipment
Tool Name:Workshop inspection equipment