TASK 72-31-12-300-001 LPC Fan Disk - Repair The Surface Damage, Repair-001 (VRS1152)

DMC:V2500-A0-72-31-1201-00A-649A-C|Issue No:002.00|Issue Date:2015-08-01

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 72-31-12-300-001 LPC Fan Disk - Repair The Surface Damage, Repair-001 (VRS1152)

Effectivity

FIG/ITEM

PART NO.

01-200

5A0269

01-200

5A0337

01-200

5A1757

01-200

5A1948

Material of component

DESCRIPTION

SYMBOL

MATERIAL

Stage 1 Fan Disk

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
Fluorescent Penetrant Inspection EquipmentLOCALFluorescent penetrant inspection equipment
BinocularsLOCALBinoculars

20X

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
CoMat 06-022 FLUORESCENT PENETRANT (POST-EMULSIFIED ULTRA HIGH SENSITIVITY)LOCALCoMat 06-022

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-31-12-350-051 Remove the Damage from the Stage 1 Fan Disk Assembly

    1. CAUTION

      TITANIUM COMPONENT - YOU MUST USE SILICON CARBIDE TYPE ABRASIVE WHEELS, STONES AND PAPERS TO DRESS, BLEND AND POLISH THIS COMPONENT. ALUMINIMUM 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.

      NOTE

      This repair must only be carried out by operators that are trained and qualified with regards to the operation, operation constraints and conditions (e.g. malfunctioning tools) of hand held power tools and must also be able to recognize changes in surface texture and color of the component/repaired area.

      Refer to Figure.

      2. Remove the damage at location 1 to 9.

        1. Scallop, make smooth and/or hand polish to remove nicks, scores, burrs and/or galls.

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

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

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

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

      3. Remove the damage at location 10.

        1. Remove shank nut which is put on the damaged flange, if required.

        1. Refer to TASK 72-31-12-300-007.

        2. Scallop, make smooth and/or hand polish to remove nicks, scores, burrs and/or galls.

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

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

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

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

      4. Remove the damage at location 11.

        1. Remove the jacking pad pins.

        1. Refer to TASK 72-31-12-300-010.

        2. Blend to remove the damages.

          1. Use portable grinding equipment, abrasive stones or paper and/or fine file. Use light pressure to prevent any risk of overheating material.

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

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

    2. SUBTASK 72-31-12-110-062 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 72-31-12-220-051 Examine the Stage 1 Fan Disk Assembly

      1. Visually examine repaired area.

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

      2. Refer to TASK 72-31-12-200-000.

      2. Binocular examine the repaired area.

        1. Binocular examine the repaired area for crack indications, spatter or any other defects.

        1. Indications or surface defects are not permitted.

    4. SUBTASK 72-31-12-230-051 Examine the Stage 1 Fan Disk Assembly for Cracks

      1. Fluorescent penetrant examine repaired area.

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

      3. Make sure there are no cracks in repaired area.

    5. SUBTASK 72-31-12-350-006 Install the Shank Nut

      1. Install the new shank nut if it was removed in step 4. C. (1).

      1. Refer to TASK 72-31-12-300-007.

    6. SUBTASK 72-31-12-350-007 Install the Jacking Pad Pins

      1. Install the new jacking pad pins if it was removed step 4. D. (1).

      1. Refer to TASK 72-31-12-300-010.

    7. SUBTASK 72-31-12-350-010 Identify the Repair

      1. Mark VRS1152 adjacent to the part number.

      1. Refer to the SPM TASK 70-09-00-400-501. Use vibro-engraving equipment.

    8. Figure: Repair Details and Dimensions

    Sheet 1

    Legend
    Repair Details and Dimensions

    Sheet 1

    Close

    Figure: Repair Details and Dimensions

    Sheet 2

    Legend
    Repair Details and Dimensions

    Sheet 2

    Close

    Figure: Repair Details and Dimensions

    Sheet 3

    Legend
    Repair Details and Dimensions

    Sheet 3

    Close

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Added new part number. (87VJ845I)

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: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:Binoculars
Tool Name:Binoculars
Manufacturer Code:LOCAL
Tool Number:Fluorescent penetrant inspection equipment
Tool Name:Fluorescent Penetrant Inspection Equipment