TASK 72-31-11-300-031 LPC Fan Blade - Repair The Dovetail, Repair-031 (VRS1066)

DMC:V2500-A0-72-31-1101-04A-649A-C|Issue No:002.00|Issue Date:2017-11-01

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 72-31-11-300-031 LPC Fan Blade - Repair The Dovetail, Repair-031 (VRS1066)

Effectivity

FIG/ITEM

PART NO.

01-300

6A3494

Assembly A

01-300

6A3971

Assembly A

01-300

6A5485

Assembly A

01-300

6A4700

Assembly A

01-300

6A6519

Assembly A

01-300

6A6521

Assembly A

01-300

6A7403

Assembly A

01-300

6A7613

Assembly B

01-300

6A7614

Assembly B

01-300

6A7649

Assembly B

01-300

6A7650

Assembly B

01-300

6A7651

Assembly B

01-300

6A7652

Assembly B

01-300

6A7653

Assembly B

01-300

6A7654

Assembly B

01-300

6A7655

Assembly B

01-300

6A7656

Assembly A

01-300

6A7658

Assembly B

Material of component

PART IDENT

SYMBOL

MATERIAL

LP Compressor rotor blades

TFH

Titanium

6 percent Aluminum

4 percent Vanadium alloy

General

Price and availability - Refer to IAE.

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

Related repairs:

LP Compressor Blades and Fillers - Shotpeen root of blade to restore fatigue strength, refer to TASK 72-31-11-300-024 (VRS1723).

LP Compressor Blades and Fillers - Replace the Metco 58NS coating on the dovetail root flanks, refer to TASK 72-31-11-300-032 (VRS1067).

LP Compressor Blades and Fillers - Repair the Airfoil Surface Finish by Glass/Ceramic Bead Peening, refer to TASK 72-31-11-300-024 (VRS1724).

NOTE

To identify the consumable materials, refer to the PCI.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Portablegrinding equipmentLOCALPortable grinding equipment
Vibrating marking pencilLOCALVibrating marking pencil

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 05-075 WATERPROOF SILICON CARBIDEIE241CoMat 05-075
CoMat 05-076 WATERPROOF SILICON CARBIDEK3895CoMat 05-076
CoMat 05-077 WATERPROOF SILICON CARBIDEK6835CoMat 05-077
CoMat 06-018 FLUORESCENT PENETRANT (POST-EMULSIFIED HIGH SENSITIVITY)37676CoMat 06-018

Spares

NONE

Safety Requirements

CAUTION

TITANIUM COMPONENTS, SILICON CARBIDE TYPE WHEELS, STONES AND ABRASIVE PAPERS ARE TO BE USED FOR THIS REPAIR

CAUTION

ALUMINUM OXIDE MUST NOT BE USED

CAUTION

THE MATERIAL WILL OXIDIZE AND CRACK IF MECHANICAL CUTTERS ARE USED HEAVILY. THIS WILL HAVE DISCOLORATION. IF DISCOLORATION OCCURS, THE BLADE MUST BE REJECTED.

Procedure

    1. SUBTASK 72-31-11-350-113 Remove the Metco 58 Coating from the LPC Rotor Blade Assembly, Assembly B

      1. NOTE

        This Step is required if damages at location 2 and/or 3 need to be repaired.

        Remove the coating from the blade dovetail root flanks.

      1. Refer to VRS1067 TASK 72-31-11-300-032 (REPAIR-032).

    2. SUBTASK 72-31-11-350-096 Remove the Damage from the LPC Rotor Blade Assembly Dovetail End Faces at Location 1, Assembly A and Assembly B

    1. CAUTION

      TITANIUM COMPONENTS, SILICON CARBIDE TYPE WHEELS, STONES AND ABRASIVE PAPERS ARE TO BE USED FOR THIS REPAIR.

      CAUTION

      ALUMINUM OXIDE MUST NOT BE USED.

      CAUTION

      THE MATERIAL WILL OXIDIZE AND CRACK IF MECHANICAL CUTTERS ARE USED HEAVILY. THIS WILL HAVE OCCURRED WHEN THE COMPONENT SHOWS DARK STRAW TO BLUE DISCOLORATION. IF THIS DISCOLORATION OCCURS THE BLADE MUST BE REJECTED.

      Refer to Figure.

      2. Remove the nicks, scores, scratches, dents or galling.

      1. Use portable grinding equipment. Use light pressure to prevent any risk of over heating the material.

      2. The width of the repaired area is to be 20 times the depth.

      3. Remove the minimum amount of material to smooth out the defect.

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

      3. Make smooth and/or hand polish the repaired area.

      2. Remove the minimum amount of material to smooth the surface.

      3. Surface finish of the repair must be the same as the adjacent area.

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

    3. SUBTASK 72-31-11-350-098 Remove the Damage from the LPC rotor Blade Assembly Lower Corner at Location 2, Assembly A and Assembly B

    1. CAUTION

      TITANIUM COMPONENTS. SILICON CARBIDE TYPE WHEELS, STONES AND ABRASIVE PAPERS ARE TO BE USED FOR THIS REPAIR.

      CAUTION

      ALUMINUM OXIDE MUST NOT BE USED.

      CAUTION

      THE MATERIAL WILL OXIDIZE AND CRACK IF MECHANICAL CUTTERS ARE USED HEAVILY. THIS WILL HAVE OCCURRED WHEN THE COMPONENT SHOWS DARK STRAW TO BLUE DISCOLORATION. IF THIS DISCOLORATION OCCURS THE BLADE MUST BE REJECTED.

      Refer to Figure.

      2. Remove the nicks, scores, scratches, dents or galling.

      1. Use portable grinding equipment.

      2. Use light pressure to prevent any risk of over heating the material.

      3. The width of the repaired area is to be 10 times the depth.

      4. Remove the minimum amount of material to smooth out the defect.

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

      3. Make smooth and/or hand polish the repaired area.

      2. Remove the minimum amount of material to smooth the surface.

      3. Surface finish of the repair must be the same as the adjacent area.

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

    4. SUBTASK 72-31-11-350-121 Remove the Damage from the LPC Rotor Blade Assembly Lower Corner at Location 3, Assembly A and Assembly B

    1. CAUTION

      TITANIUM COMPONENTS. SILICON CARBIDE TYPE WHEELS, STONES AND ABRASIVE PAPERS ARE TO BE USED FOR THIS REPAIR.

      CAUTION

      ALUMINUM OXIDE MUST NOT BE USED.

      CAUTION

      THE MATERIAL WILL OXIDIZE AND CRACK IF MECHANICAL CUTTERS ARE USED HEAVILY. THIS WILL HAVE OCCURRED WHEN THE COMPONENT SHOWS DARK STRAW TO BLUE DISCOLORATION. IF THIS DISCOLORATION OCCURS THE BLADE MUST BE REJECTED.

      Refer to Figure.

      2. Remove the nicks, scores, scratches, dents or galling.

      1. Use portable grinding equipment.

      3. Use light pressure to prevent any risk of over heating the material.

      4. The width of the repaired area is to be 10 times the depth.

      5. Remove the minimum amount of material to smooth out the defect.

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

      3. Make smooth and/or hand polish the repaired area.

      2. Remove the minimum amount of material to smooth the surface.

      3. Surface finish of the repair must be the same as the adjacent area.

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

    5. SUBTASK 72-31-11-350-122 Remove the Damage from the LPC Rotor Blade Assembly Dovetail Bottom Face at Location 4, Assembly A and Assembly B

    1. CAUTION

      TITANIUM COMPONENTS. SILICON CARBIDE TYPE WHEELS, STONES AND ABRASIVE PAPERS ARE TO BE USED FOR THIS REPAIR.

      CAUTION

      ALUMINUM OXIDE MUST NOT BE USED.

      CAUTION

      THE MATERIAL WILL OXIDIZE AND CRACK IF MECHANICAL CUTTERS ARE USED HEAVILY. THIS WILL HAVE OCCURRED WHEN THE COMPONENT SHOWS DARK STRAW TO BLUE DISCOLORATION. IF THIS DISCOLORATION OCCURS THE BLADE MUST BE REJECTED.

      Refer to Figure.

      2. Remove the nicks, scores, scratched or dents.

      1. Use portable grinding equipment.

      3. Use light pressure to prevent any risk of over heating the material.

      4. The width of the repaired area is to be 20 times the depth.

      5. Remove the minimum amount of material to smooth out the defect.

      6. Refer to SPM TASK 70-35-03-300-501.

      3. Make smooth and/or hand polish the repaired area.

      2. Remove the minimum amount of material to smooth the surface.

      3. Surface finish of the repair must be the same as the adjacent area.

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

    6. SUBTASK 72-31-11-350-115 Remove the Damage from the LPC Rotor Blade Assembly Dovetail Side Face at Location 5, Assembly A and Assembly B

    1. CAUTION

      TITANIUM COMPONENTS. SILICON CARBIDE TYPE WHEELS, STONES AND ABRASIVE PAPERS ARE TO BE USED FOR THIS REPAIR.

      CAUTION

      ALUMINUM OXIDE MUST NOT BE USED.

      CAUTION

      THE MATERIAL WILL OXIDIZE AND CRACK IF MECHANICAL CUTTERS ARE USED HEAVILY. THIS WILL HAVE OCCURRED WHEN THE COMPONENT SHOWS DARK STRAW TO BLUE DISCOLORATION. IF THIS DISCOLORATION OCCURS THE BLADE MUST BE REJECTED.

      Refer to Figure.

      2. Remove the nicks, scores, scratches, dents or galling.

      3. Use light pressure to prevent any risk of overheating the material.

      4. The width of the repaired area is to be 20 times the depth.

      5. Remove the minimum amount of material to smooth out the defect.

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

      3. Make smooth and/or hand polish the repaired area.

      2. Remove the minimum amount of material to smooth the surface.

      3. Surface finish of the repair must be the same as the adjacent area.

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

    7. SUBTASK 72-31-11-220-136 Examine the LPC Rotor Blade Assembly, Assembly A and Assembly B

      1. Do a visual examination of the repaired area.

      1. Visually examine the repaired area using 10x magnifying glass.

      2. Refer to TASK 72-31-11-200-000 (INSPECTION-000).

    8. SUBTASK 72-31-11-230-073 Examine the LPC rotor Blade Assembly for Cracks, Assembly A and Assembly B

      1. Do a local fluorescent penetrant crack test of the repaired area.

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

      2. Use CoMat 06-018 FLUORESCENT PENETRANT (POST-EMULSIFIED HIGH SENSITIVITY) and fluorescent penetrant inspection equipment.

      3. Cracks are not permitted.

    9. SUBTASK 72-31-11-380-058 Shotpeen the LPC Rotor Blade Assembly at Location 2 and Location 5, Assembly A and Assembly B

      1. NOTE

        Shotpeen is required if damages at Location 2 and Location 5 have been repaired.

        Shotpeen the repaired area.

      1. Refer to VRS1723 TASK 72-31-11-300-024 (REPAIR-024).

    10. SUBTASK 72-31-11-350-123 Glass/Ceramic Bead Peen the Damage at Location 3 from the LPC Rotor Blade Assembly, Assembly A and Assembly B

      1. NOTE

        Glass/ceramic bead peen is required if damages at location 3 have been repaired.

        Glass/ceramic bead peen the repaired area.

      1. Refer to VRS1724 TASK 72-31-11-300-026 (REPAIR-026).

    11. SUBTASK 72-31-11-380-061 Re-apply the Metco 58 Coating to the LPC Rotor Blade Assembly, Assembly B

      1. NOTE

        This SUBTASK is necessary if the Metco 58 coating has been removes in accordance with Para. 4. Step.

        Re-apply the Metco 58 coating to the dovetail root flanks.

      1. Refer to VRS1067 TASK 72-31-11-300-032 (REPAIR-032).

    12. SUBTASK 72-31-11-350-097 Identify the Repair

      1. Make a mark VRS1066, adjacent to the part number.

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

    13. Figure: Repair Details and Dimensions

    Repair Details and Dimensions

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised the procedure to add step 6. (99VJ712C)

Manufacturer Code:37676
Enterprise Name:ITW MAGNAFLUX
BU Name:MAGNAFLUX CORPORATION
Street:155 HARLEM AVE
City:GLENVIEW
State:IL
Zip Code:60025
Country:USA
Phone Number:1-847-657-5300
Fax Number:1-847-867-5388
Internet:www.magnaflux.com
Manufacturer Code:IE241
Enterprise Name:DELETED. Was ANGLO ABRASIVES.
Manufacturer Code:K3895
Enterprise Name:DELETED. REFER TO VENDOR CODE KC1D9.
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:1E1X8
Supply Number:CoMat 05-075
Type:sp01
Supply Short Name:CoMat 05-075 WATERPROOF SILICON CARBIDE
Supply Name:CoMat 05-075 WATERPROOF SILICON CARBIDE
Specification Groups:
Doc NumberType
OMAT: 5/28 (RR REF)WATERPROOF SILICON CARBIDE ABRASIVE PAPER, CAMI GRIT DESIGNATION 800
JCR-181 (JAEC REF)
Suppliers:
ManufacturerRemarks
1E1X8
K1905
K6835
LOCAL
Manufacturer Code:1E1X8
Supply Number:CoMat 05-076
Type:sp01
Supply Short Name:CoMat 05-076 WATERPROOF SILICON CARBIDE
Supply Name:CoMat 05-076 WATERPROOF SILICON CARBIDE
Specification Groups:
Doc NumberType
OMAT: 5/30 (RR REF)WATERPROOF SILICON CARBIDE ABRASIVE PAPER, CAMI GRIT DESIGNATION 500
JCR-183 (JAEC REF)
Suppliers:
ManufacturerRemarks
1E1X8
K6835
LOCAL
Manufacturer Code:1E1X8
Supply Number:CoMat 05-077
Type:sp01
Supply Short Name:CoMat 05-077 WATERPROOF SILICON CARBIDE
Supply Name:CoMat 05-077 WATERPROOF SILICON CARBIDE
Specification Groups:
Doc NumberType
OMAT: 5/32 (RR REF)WATERPROOF SILICON CARBIDE ABRASIVE PAPER, CAMI GRIT DESIGNATION 360
JCR-185 (JAEC REF)
Suppliers:
ManufacturerRemarks
1E1X8
K6835
LOCAL
Manufacturer Code:X222X
Supply Number:CoMat 06-018
Type:sp01
Supply Short Name:CoMat 06-018FLUORESCENT PENETRANT (POST-EMULSIFIED HIGH SENSITIVITY)
Supply Name:CoMat 06-018 FLUORESCENT PENETRANT (POST-EMULSIFIED HIGH SENSITIVITY)
Specification Groups:
Doc NumberType
It is not permitted to mix the selected CoMat 06‐018 letter suffix material with other CoMat 06‐018 letter suffix materials. Where CoMat 06‐018 is specified with no suffix, use one of the CoMat 06‐018 letter suffix materials.
Suppliers:
ManufacturerRemarks
X222X
Manufacturer Code:LOCAL
Tool Number:Portable grinding equipment
Tool Name:Portablegrinding equipment
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