TASK 72-31-13-300-001 LPC Fan Blade Front Retaining Ring - Repair The Surface Damage, Repair-001 (VRS1005)

DMC:V2500-A0-72-31-1300-00A-649A-C|Issue No:002.00|Issue Date:2014-11-01

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 72-31-13-300-001 LPC Fan Blade Front Retaining Ring - Repair The Surface Damage, Repair-001 (VRS1005)

Effectivity

FIG/ITEM

PART NO.

01-160

5A6079

01-160

5A0898

Material of component

PART IDENT

IAE

SYMBOL

MATERIAL

Front 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
Abrasive wheelLOCALAbrasive wheel
Magnifying glass, 10XLOCALMagnifying glass, 10X
Chemical cleaning equipmentLOCALChemical cleaning equipment

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 05-019 WATERPROOF SILICON CARBIDELOCALCoMat 05-019
CoMat 05-020 WATERPROOF SILICON CARBIDELOCALCoMat 05-020
CoMat 05-021 WATERPROOF SILICON CARBIDE44197CoMat 05-021

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-31-13-350-051 Repair the Damage of the Front 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 COMPONENT - 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 and Figure.

      2. Dress to remove nicks, scratches, dents, scores, gouges, worn, contact marks, burrs and/or galls at location 1, 2, 3 (2) thru 11 and 15 thru 18.

      1. Use portable grinding equipment and abrasive wheel.

      2. Dress until all damage is removed. The width of the repaired area except location 18 is to be 50X the depth.

      3. The width of the repaired area at location 18 is to be more than 20X the depth.

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

      3. Polish the damaged area to make smooth and remove raised material at location 3 (1).

      4. Polish to remove burrs and/or raised material at location 12 thru 14.

      5. Polish the repaired area.

      1. Surface finish must be the same as the adjacent area.

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

    2. SUBTASK 72-31-13-220-064 Examine the Front Blade Retaining Ring

    1. Refer to Figure and Figure.

      2. Visually and dimensionally examine the repaired area.

      1. Visually and dimensionally examine the repaired area for nicks, scratches, dents, scores and/or galls using 10X magnifying glass. Remaining damages after the removal of raised material at locating pin holes are permitted.

    3. SUBTASK 72-31-13-110-056 Do a Swab Etch

    1. Refer to Figure and Figure.

      2. Chemically clean.

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

        Use chemical cleaning equipment.

      3. Swab etch the repaired area.

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

      2. Use chemical cleaning equipment.

    4. SUBTASK 72-31-13-230-053 Examine the Front Blade Retaining Ring for Cracks

      1. Fluorescent penetrant examine the repaired area.

        1. Refer to the SPM TASK 70-23-03-230-501.

        1. No cracks are permitted.

    5. SUBTASK 72-31-13-350-004 Identify the Repair

      1. Mark VRS1005 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

    Repair Details and Dimensions

    Figure: Repair Details and Dimensions

    Repair Details and Dimensions

    Figure: Repair Details and Dimensions

    Repair Details and Dimensions

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised the procedure and Figure 1 thru Figure 3. (EA87VJ309H)

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 05-019
Type:sp01
Supply Short Name:CoMat 05-019 WATERPROOF SILICON CARBIDE
Supply Name:CoMat 05-019 WATERPROOF SILICON CARBIDE
Specification Groups:
Doc NumberType
OMAT: 5/31 (RR REF)WATERPROOF SILICON CARBIDE ABRASIVE PAPER, CAMI GRIT DESIGNATION 400 (ANSI B74.18)
JCR-184 (JAEC REF)
Suppliers:
ManufacturerRemarks
1E1X8
LOCAL
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
Tool Number:Abrasive wheel
Tool Name:Abrasive wheel
Manufacturer Code:LOCAL
Tool Number:Chemical cleaning equipment
Tool Name:Chemical cleaning equipment
Link not Found
Manufacturer Code:LOCAL
Tool Number:Portable grinding equipment
Tool Name:Portablegrinding equipment