TASK 72-32-85-300-058Fan Case - Repair The Damaged Bolt Hole At Flange FE By Bushing, Repair-058 (VRS1992)

DMC:V2500-A5-72-32-8501-14A-649A-C|Issue No:001.00|Issue Date:2018-11-01

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 72-32-85-300-058Fan Case - Repair The Damaged Bolt Hole At Flange FE By Bushing, Repair-058 (VRS1992)

Effectivity

FIG/ITEM

PART NO.

01-100

5W0149

01-100

5W0169

01-100

5W0172

01-100

5W0195

01-100

5W0197

01-100

5W0198

01-100

5W0218

01-100

5W0220

01-100

5W0221

01-100

5W0223

01-100

5W0225

01-100

5W0226

01-100

5W0307

01-100

5W0313

General

This Repair scheme gives the procedure for blending the Fan Case.

This repair is applicable to all of the bolt holes except four holes of 16 millimeters in diameter at 3 o'clock and 9 o'clock positions and the bushing hole at top position.

Material of Components.

PART IDENT

SYMBOL

MATERIAL

Casing

Titanium alloy

Price and Availability - none

The practices and processes referred to in the procedure by the TASK number 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
Vibro-engraving equipmentLOCAL
Machining equipmentLOCAL
Standard workshop equipmentLOCAL
Heat Protective GlovesLOCALProtective Gloves, Heat

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 03-026 LIQUID NITROGENLOCALCoMat 03-026
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 06-063 FLUORESCENT PENETRANT (POST-EMULSIFIED MEDIUM SENSITIVITY)LOCALCoMat 06-063
CoMat 06-064 FLUORESCENT PENETRANT (WATER WASHABLE MEDIUM SENSITIVITY)LOCALCoMat 06-064

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-32-85-320-057 Machine the Damaged Hole and Flange Surface

    1. Refer to Figure and Figure.

      2. Drill the damaged holes.

      1. Establish the center of the hole by using undamaged surface of the hole. Nominal diameter of the hole is 0.283 in. (7.20 mm).

      2. Drill the hole with diameter of 0.39 in. (10 mm) or 0.47 in. (12 mm) whichever is the minimum necessary to remove the damage.

      3. Machine the flange surface.

      1. Machine the flange surface with either the round shape or the square shape. The machined surface must be to be an opposite side of surface which attaches the bracket. If the repaired area is the area that the bracket is attached to both sides of the flange, it does not matter which side you machine.

        NOTE

        You can select the round shape or square shape in consideration of the accessibility of machining equipment.

      2. Measure the flange thickness T1 at machined area and the flange thickness T at non-damaged area.

    4. Make chamfer on the machined holes.

      5. Remove the sharp edges and the raised materials from the repaired area.

    2. SUBTASK 72-32-85-220-201 Examine the Repaired Area

    1. Refer to Figure and Figure.

      2. Visually examine the repaired area.

      1. Nicks, dents, scratches, galls, burrs, crack indications, spatter or a change in color to a darker than light straw color are not permitted.

      3. Dimensionally examine the repaired area.

      1. Make sure that the all dimensions are within the limits given in Figure and Figure.

    3. SUBTASK 72-32-85-110-094 Do a Swab Etch to the Repaired Area

      1. Clean the repaired area.

      1. Use chemical cleaning equipment.

      2. Refer to the SPM TASK 70-11-26-300-503.

      2. Swab etch the repaired area.

      1. Use chemical etching equipment.

      2. Refer to the SPM TASK 70-11-08-300-503.

    4. SUBTASK 72-32-85-230-072 Examine the Repaired Area for Cracks

    5. SUBTASK 72-32-85-350-164 Manufacture the Bush

    1. Refer to Figure.

      2. Manufacture the bushes locally.

      1. Use AMS 4928.

      2. Determine the bush diameter from 0.39 in. (10 mm) or 0.47 in. (12 mm) so that it matches the machined hole diameter in Step.

      3. Determine the bush flange thickness T2 from T and T1 measured in Step.

    6. SUBTASK 72-32-85-220-202 Examine the Manufactured Bush

    1. Refer to Figure.

      2. Visually examine the manufactured bushes.

      1. Nicks, dents, scratches, and burrs are not permitted.

      3. Dimensionally examine the manufactured bushes.

      1. Make sure that the all dimensions are within the limits given in Figure.

    7. SUBTASK 72-32-85-230-073 Examine the Manufactured Bush for Cracks

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

    3. No cracks are permitted.

    8. SUBTASK 72-32-85-350-165 Install the Bush

      1. Freeze and install the bushes.

      3. The bushes must be installed to the same side as machined surface.

    9. SUBTASK 72-32-85-220-202 Examine the Installed Bush

    1. Refer to Figure.

      2. Visually examine the bushes.

      1. Make sure that the bush surface is to be flush with the surrounding flange surface.

    10. SUBTASK 72-32-85-350-166 Identify the Repair

      1. Make a mark VRS1992 adjacent to the part number.

      1. Use vibro-engraving equipment.

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

    11. Figure: Repair Details and Dimensions for Square Machining

    Repair Details and Dimensions for Square Machining

    Figure: Repair Details and Dimensions for Round Machining

    Repair Details and Dimensions for Round Machining

    Figure: Details of the Manufactured Bush

    Details of the Manufactured Bush

    Figure: After the Repair

    After the Repair

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Added new repair VRS1992. (16VJ801, 16VJ801A and 16VJ801B)

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:LOCAL
Supply Number:CoMat 03-026
Type:sp01
Supply Short Name:CoMat 03-026 LIQUID NITROGEN
Supply Name:CoMat 03-026 LIQUID NITROGEN
Specification Groups:
Doc NumberType
OMAT:220BB-N-411 T2GBC1
JCR-135BB-N-411 T2GBC1
Suppliers:
ManufacturerRemarks
LOCAL
U2046
U2096
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 06-063
Type:sp01
Supply Short Name:CoMat 06-063 FLUORESCENT PENETRANT (POST-EMULSIFIED MEDIUM SENSITIVITY)
Supply Name:CoMat 06-063 FLUORESCENT PENETRANT (POST-EMULSIFIED MEDIUM SENSITIVITY)
Specification Groups:
Doc NumberType
It is not permitted to mix the selected CoMat 06‐063 letter suffix material with other CoMat 06‐063 letter suffix materials. Where CoMat 06‐063 is specified with no suffix, use one of the CoMat 06‐063 letter suffix materials.
Suppliers:
ManufacturerRemarks
X222X
Manufacturer Code:X222X
Supply Number:CoMat 06-064
Type:sp01
Supply Short Name:CoMat 06-064FLUORESCENT PENETRANT (WATER WASHABLE MEDIUM SENSITIVITY)
Supply Name:CoMat 06-064 FLUORESCENT PENETRANT (WATER WASHABLE MEDIUM SENSITIVITY)
Specification Groups:
Doc NumberType
It is not permitted to mix the selected CoMat 06‐064 letter suffix material with other CoMat 06‐064 letter suffix materials.Where CoMat 06‐064 is specified with no suffix, use one of the CoMat 06‐064 letter suffix materials.
Suppliers:
ManufacturerRemarks
X222X
Link not Found
Manufacturer Code:LOCAL
Tool Number:Protective Gloves, Heat
Tool Name:Heat Protective Gloves
Link not Found