TASK 72-31-12-300-002 Fan Blade Rear Retaining Ring - Repair The Surface Damage, Repair 002(VRS1150)

DMC:V2500-A0-72-31-1202-00A-649A-C|Issue No:001.00|Issue Date:2014-05-01

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 72-31-12-300-002 Fan Blade Rear Retaining Ring - Repair The Surface Damage, Repair 002(VRS1150)

Effectivity

FIG/ITEM

PART NO.

01-100

5A0211

Assembly A

01-100

5A0897

Assembly B

Material of component

PART IDENT

SYMBOL

MATERIAL

Rear blade retaining ring

Titanium alloy

General

Price and availability - none

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

NOTE

To identify the consumable materials refer to the PCI.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Portablegrinding equipmentLOCALPortable grinding equipment
Fluorescent Penetrant Inspection EquipmentLOCALFluorescent penetrant inspection equipment
Chemical cleaning equipmentLOCALChemical cleaning equipment

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 05-020 WATERPROOF SILICON CARBIDELOCALCoMat 05-020
CoMat 05-021 WATERPROOF SILICON CARBIDE44197CoMat 05-021
CoMat 06-022 FLUORESCENT PENETRANT (POST-EMULSIFIED ULTRA HIGH SENSITIVITY)LOCALCoMat 06-022

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-31-12-350-052 Remove the Damage from the Rear Blade Retaining Ring

    1. CAUTION

      TITANIUM COMPONENT - YOU MUST USE SILICON CARBIDE TYPE ABRASIVE WHEELS, STONES AND PAPERS TO DRESS, BLEND AND POLISH THIS COMPONENT. ALUMINIUM OXIDE TYPE MUST NOT BE USED. IF MECHANICAL CUTTERS ARE USED, ONLY LIGHT CUTS MUST BE MADE TO AVOID OVERHEATING THE MATERIAL.
      TITANIUM COMPNENT - AVOID BUILD UP OF HEAT BY APPLYING ONLY GENTLE PRESSURE AND KEEPING THE TOOL SPEED AS LOW AS POSSIBLE. USE TECHNIQUES WHICH ALLOW FOR PROGRESSIVE WEAR OF THE DRESSING MEDIA TO PRESENT A CONTINUALLY FRESH CUTTING SURFACE TO THE WORK PIECE.
      DO NOT DWELL ON ONE AREA OF THE COMPONENT.
      DRESS, WHERE POSSIBLE, IN A CIRCULAR MOTION; TAKING LIGHT CUTS TO AVOID OVERHEATING.
      TITANIUM COMPONENT - YOU MUST MAKE SURE THAT WHEN YOU REMOVE MATERIAL, BLEND AND POLISH, TO MAKE SMOOTH, THAT NO SPARKS ARE PRODUCED AND THE ADJACENT AREA IS MASKED OFF.
      TITANIUM COMPONENT - IF THE MATERIAL SHOWS A CHANGE IN COLOR DURING DRESSING, TO DARKER THAN A LIGHT STRAW COLOR, THE COMPONENT IS TO BE REJECTED.

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

      2. Dress/make smooth and/or hand polish to remove nicks, dents, scratches burrs and/or galls.

        1. Use portable grinding equipment, abrasive stones or papers and/or fine file.

        1. Use light pressure to prevent any risk of overheating material.

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

        3. Remove the minimum quantity of material necessary to remove the damage.

        4. Raised material and sharp edges must be removed from repaired area.

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

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

    2. SUBTASK 72-31-12-110-064 Do a Swab Etch

      1. Chemically clean.

      1. Refer to the SPM TASK 70-11-08-300-503, SUBTASK 70-11-08-300-001.

      2. Use chemical cleaning equipment.

      2. Swab etch the repair area(s).

      1. Refer to the SPM TASK 70-11-08-300-503, SUBTASK 70-11-08-300-002.

      2. Use chemical cleaning equipment.

    3. SUBTASK 72-31-12-220-052 Examine the Rear Blade Retaining Ring

      1. Visually examine the repaired area.

      1. Visually examine the repaired area for burrs and/or galls using 10X magnifying glass.

      2. Refer to TASK 72-31-12-200-000 (INSPECTION/CHECK-000).

    4. SUBTASK 72-31-12-230-052 Examine the Rear Blade Retaining Ring for Cracks

      1. Fluorescent penetrant examine the repaired area.

      1. Make sure there are no cracks in the repaired area.

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

    5. SUBTASK 72-31-12-350-012 Identify the Repair

      1. Mark VRS1150 adjacent to the part number.

      1. Refer to the SPM TASK 70-09-00-400-501.

      2. Use vibro-engraving equipment.

    6. Figure: Repair Details and Dimensions for Assembly A

    Sheet 1

    Legend
    Repair Details and Dimensions for Assembly A

    Sheet 1

    Close

    Figure: Repair Details and Dimensions for Assembly A

    Sheet 2

    Legend
    Repair Details and Dimensions for Assembly A

    Sheet 2

    Close

    Figure: Repair Details and Dimensions for Assembly B

    Sheet 1

    Legend
    Repair Details and Dimensions for Assembly B

    Sheet 1

    Close

    Figure: Repair Details and Dimensions for Assembly B

    Sheet 2

    Legend
    Repair Details and Dimensions for Assembly B

    Sheet 2

    Close

    Figure: Repair Details and Dimensions

    Repair Details and Dimensions

Requirements After Job Completion

Follow-On Conditions

NONE
Manufacturer Code:44197
Enterprise Name:SAINT-GOBAIN INDUSTRIAL CERAMICS INC.
BU Name:SAINT-GOBAIN ABRASIVES, INC
Street:ONE NEW BOND STREET
P.O. Box:PO BOX 15008
City:WORCESTER
State:MA
Zip Code:01615-0008
Country:USA
Phone Number:1-508-795-5000
Fax Number:1-508-795-2828
Internet:www.saint-gobain-northamerica.com
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
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:X222X
Supply Number:CoMat 06-022
Type:sp01
Supply Short Name:CoMat 06-022 FLUORESCENT PENETRANT (POST-EMULSIFIED ULTRA HIGH SENSITIVITY)
Supply Name:CoMat 06-022 FLUORESCENT PENETRANT (POST-EMULSIFIED ULTRA HIGH SENSITIVITY)
Specification Groups:
Doc NumberType
ARDROX 985-P14 OMAT: 652 (CHEMETALL OAKITE 985-P14)It is not permitted to mix the selected CoMat 06‐022 letter suffix material with other CoMat 06‐022 letter suffix materials. Where CoMat 06‐022 is specified with no suffix, use one of the CoMat 06‐ 022 letter suffix materials.
Suppliers:
ManufacturerRemarks
X222X
Manufacturer Code:LOCAL
Tool Number:Chemical cleaning equipment
Tool Name:Chemical cleaning equipment
Manufacturer Code:LOCAL
Tool Number:Fluorescent penetrant inspection equipment
Tool Name:Fluorescent Penetrant Inspection Equipment
Manufacturer Code:LOCAL
Tool Number:Portable grinding equipment
Tool Name:Portablegrinding equipment