TASK 72-32-83-300-037 LPC Front Case - Repair Surface Damage By Blending And Surface Protection, Repair-037 (VRS1759)

DMC:V2500-A0-72-32-8330-01A-649A-C|Issue No:003.00|Issue Date:2016-02-01

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 72-32-83-300-037 LPC Front Case - Repair Surface Damage By Blending And Surface Protection, Repair-037 (VRS1759)

Effectivity

FIG/ITEM

PART NO.

02-350

5A0458

02-350

5A1864

Material of component

PART IDENT

SYMBOL

MATERIAL

LPC front case

Aluminum alloy

General

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

Price and availability - none

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
Magnifying glass, 10xLOCALMagnifying glass, 10x

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 01-275 CHROMATE CONVERSION COATING FOR ALUMINIUMLOCALCoMat 01-275
CoMat 05-020 WATERPROOF SILICON CARBIDELOCALCoMat 05-020
CoMat 05-021 WATERPROOF SILICON CARBIDE44197CoMat 05-021
CoMat 06-064 FLUORESCENT PENETRANT (WATER WASHABLE MEDIUM SENSITIVITY)LOCALCoMat 06-064

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-32-83-350-067 Remove the Damage from the LPC Front Case Assembly, Except at Location 3, 4 and 8

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

      2. Make smooth and/or hand polish to remove corrosion, galls, nicks, pits, scratches and burrs.

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

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

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

    2. SUBTASK 72-32-83-350-100 Remove the Damage from Bolt Holes at Location 3 and 4

    1. Refer to Figure, Figure, and Figure.

      2. Make smooth and/or hand polish to remove corrosion, galls, nicks, pits, scratches and burrs.

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

      3. The surface finish of this repair must be the same as the adjacent area.

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

    3. SUBTASK 72-32-83-350-096 Remove the Damage from Front Inner Surface at Location 8

    1. Refer to Figure, Figure and Figure.

      2. Make smooth and/or polish to remove corrosion, galls, nicks, pits, scratches and burrs.

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

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

      4. The width of the repaired area is to be 8 times the depth.

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

      6. If abradable seal is removed with parent material for smooth blending, blend the abradable seal in accordance with Figure.

    4. SUBTASK 72-32-83-220-155 Examine the LPC Front Case Assembly

      1. Visually examine the repaired area.

      1. Visually examine the repaired area for corrosion, galls, nicks, pits, scratches and burrs.

      2. Use a 10X magnifying glass.

      3. Refer to TASK 72-32-83-200-000 (INSPECTION-000).

    5. SUBTASK 72-32-83-230-069 Examine the LPC Front Case Assembly for Cracks

      1. Fluorescent penetrant examine the repaired area.

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

      2. Make sure that there are no cracks in the repaired area.

    6. SUBTASK 72-32-83-110-062 Remove the Grease from the LPC Front Case Assembly

    1. Remove the grease with cold liquid.

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

    7. SUBTASK 72-32-83-380-057 Apply Surface Protection to the LPC Front Case Assembly

      1. Apply the chromate conversion coating for aluminum with a brush to the repaired area.

      1. Refer to the SPM TASK 70-38-02-300-503.

    2. Use clean cold water and then dry air blast to dry the repaired area.

    8. SUBTASK 72-32-83-380-075 Apply the Heat Resisting E.S. Coating to the Repaired Area

    1. Refer to Figure.

      2. Apply the primer to the repaired area.

      1. Refer to the SPM TASK 70-38-20-380-501, SUBTASK 70-38-20-380-002.

      3. Apply the heat resisting E.S. coating to the repaired area.

        1. Refer to the SPM TASK 70-38-20-380-501, SUBTASK 70-38-20-380-002.

        1. Use coating of white.

    9. Figure: Repair Details and Dimensions

    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

    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 Figure 1 (Sheet 1) to add item numbers 2A and 12 missed during incorporation of 93VJ816L.

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:00BB6
Supply Number:CoMat 01-275
Type:sp01
Supply Short Name:CoMat 01-275 CHROMATE CONVERSION COATING FOR ALUMINIUM
Supply Name:CoMat 01-275 CHROMATE CONVERSION COATING FOR ALUMINIUM
Specification Groups:
Doc NumberType
BONDERITE M-CR-1200S AEROJCR-047 (JAEC REF)
JCR-048 (JAEC REF)SPMC 206 (PW REF)
Suppliers:
ManufacturerRemarks
00BB6
71410
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 06-064
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
Manufacturer Code:LOCAL
Tool Number:Fluorescent penetrant inspection equipment
Tool Name:Fluorescent Penetrant Inspection Equipment
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