TASK 72-32-83-300-026 LPC Rear Case - Repair The Front Outside Diameter By Plasma Spray, Repair-026 (VRS1591)

DMC:V2500-A0-72-32-8340-03A-609A-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 72-32-83-300-026 LPC Rear Case - Repair The Front Outside Diameter By Plasma Spray, Repair-026 (VRS1591)

Effectivity

FIG/ITEM

PART NO.

02-900

5W2196

Material of component

PART IDENT

SYMBOL

MATERIAL

LPC rear case assembly

Aluminum 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
Vertical latheLOCALVertical lathe
Dry blast cabinetLOCALDry blast cabinet
Plasma spray facilityLOCALPlasma spray facility
Fluorescent Penetrant Inspection EquipmentLOCALFluorescent penetrant inspection equipment
Magnifying glass, 7xLOCALMagnifying glass, 7x
Vibrating marking pencilLOCALVibrating marking pencil
External micrometerLOCALExternal micrometer

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 02-001 ADHESIVE TAPE (MASKING)LOCALCoMat 02-001
CoMat 03-038 METAL SPRAYING POWDER NICKEL ALUMINIUM (95/5)IE200CoMat 03-038
CoMat 05-015 ABRASIVE MEDIUM, ALUMINUM OXIDELOCALCoMat 05-015
CoMat 06-063 FLUORESCENT PENETRANT (POST-EMULSIFIED MEDIUM SENSITIVITY)LOCALCoMat 06-063

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-32-83-325-059 Machine the Front Outside Diameter of the LPC Rear Case Assembly

    1. Refer to Figure.

      2. Machine the front outside diameter.

      1. Use vertical lathe.

    2. SUBTASK 72-32-83-220-206 Examine the Front Outside Diameter

    1. Refer to Figure.

      2. Measure and record the front outside diameter.

      1. Use external micrometer.

    3. SUBTASK 72-32-83-230-091 Examine the LPC Rear Case Assembly for Cracks

      1. Do a fluorescent penetrant inspection on the front outside diameter.

      1. No cracks are permitted.

      3. Use FPI equipment.

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

    4. SUBTASK 72-32-83-120-068 Abrasive Blast the Front Outside Diameter of the LPC Rear Case Assembly

    1. Refer to Figure.

      2. Apply masking tape to the areas which are not to be given plasma spray.

      3. Abrasive blast the front outside diameter.

      2. Use dry blast cabinet.

      3. Refer to the SPM TASK 70-34-01-340-501.

    5. SUBTASK 72-32-83-340-057 Plasma Spray the Front Outside Diameter of the LPC Rear Case Assembly

    1. Refer to Figure.

      2. Apply new masking tape if necessary.

      3. Apply plasma spray to the front outside diameter.

      1. Refer to the SPM TASK 70-34-01-340-501.

      3. Use plasma spray facility.

      4. Apply sufficient plasma spray to get the necessary thickness.

      5. Maximum thickness of the plasma spray must be 0.012 in. (0.304 mm).

    4. Remove the masking tape.

    6. SUBTASK 72-32-83-350-107 Remove the Overspray

    1. Refer to Figure.

      2. Remove the overspray.

      1. Use non-metallic hand scraper.

    7. SUBTASK 72-32-83-325-060 Finish Machine the Front Outside Diameter of the LPC Rear Case Assembly

    1. Refer to Figure.

      2. Set up the LPC rear case assembly on machine.

      1. Use vertical lathe.

      3. Finish machine the front outside diameter.

        1. The minimum plasma spray coating thickness is 0.003 in. (0.08 mm).

        1. Refer to the SPM TASK 70-34-01-340-501.

    8. SUBTASK 72-32-83-220-207 Examine the Front Outside Diameter of the LPC Rear Case Assembly

    1. Refer to Figure.

      2. Visually examine the coated area for chips, cracks, lifted material and coating that is not attached to the base metal.

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

      3. Dimensionally examine the front outside diameter.

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

    9. SUBTASK 72-32-83-350-108 Identify the Repair

      1. Write VRS1591 adjacent to the part number.

      1. Mark a permanent mark.

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

      2. Apply the chromate conversion coating to the marking.

      1. Refer to the SPM TASK 70-38-02-300-503 (SUBTASK 72-38-02-300-002).

    10. Figure: Repair details and machining dimensions before plasma spray

    Repair details and machining dimensions before plasma spray

    Figure: Repair details and finish machining dimensions after plasma spray

    Repair details and finish machining dimensions after plasma spray

Requirements After Job Completion

Follow-On Conditions

NONE
Manufacturer Code:IE200
Enterprise Name:DELETED, REFER TO CAGE CODE 00BB6
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:LOCAL
Supply Number:CoMat 02-001
Type:sp01
Supply Short Name:CoMat 02-001 ADHESIVE TAPE (MASKING)
Supply Name:CoMat 02-001 ADHESIVE TAPE (MASKING)
Specification Groups:
Doc NumberType
OMAT: 230 (RR REF)ZINC OXIDE AT142
JCR-197 (JAEC REF)ZINC OXIDE AT142
Suppliers:
ManufacturerRemarks
LOCAL
K6835
U0415
Manufacturer Code:00BB6
Supply Number:CoMat 03-038
Type:sp01
Supply Short Name:CoMat 03-038 METAL SPRAYING POWDER NICKEL ALUMINIUM (95/5)
Supply Name:CoMat 03-038 METAL SPRAYING POWDER NICKEL ALUMINIUM (95/5)
Specification Groups:
Doc NumberType
OMAT: 3/188 (RR REF)METCO 450NS
JCR-020 (JAEC REF)
Suppliers:
ManufacturerRemarks
00BB6
01FK3
0Y7E4
C1840
IE103
K0455
K6835
Manufacturer Code:X222X
Supply Number:CoMat 05-015
Type:sp01
Supply Short Name:CoMat 05-015 ABRASIVE MEDIUM, ALUMINUM OXIDE
Supply Name:CoMat 05-015 ABRASIVE MEDIUM, ALUMINUM OXIDE
Specification Groups:
Doc NumberType
Where CoMat 05-015 is specified with no letter suffix, use one of the CoMat 05-015 letter suffix alternatives.
Suppliers:
ManufacturerRemarks
X222X
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:LOCAL
Tool Number:Dry blast cabinet
Tool Name:Dry blast cabinet
Link not Found
Manufacturer Code:LOCAL
Tool Number:Fluorescent penetrant inspection equipment
Tool Name:Fluorescent Penetrant Inspection Equipment
Link not Found
Manufacturer Code:LOCAL
Tool Number:Plasma spray facility
Tool Name:Plasma spray facility
Manufacturer Code:LOCAL
Tool Number:Vertical lathe
Tool Name:Vertical lathe
Link not Found