TASK 72-50-21-300-040 LPT Case - Plasma Spray The Outer Duct Support Hook, Repair-040 (VRS4490)

DMC:V2500-A0-72-50-2101-05A-609A-C|Issue No:002.00|Issue Date:2013-11-01

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 72-50-21-300-040 LPT Case - Plasma Spray The Outer Duct Support Hook, Repair-040 (VRS4490)

Effectivity

FIG/ITEM

PART NO.

01-010

3A0807

01-010

3A0990

01-010

3A0991

01-010

3A1908

01-010

3A2183

01-010

3A2265

01-010

3A2447

01-010

3A2533

Material of component

PART IDENT

IAE

SYMBOL

MATERIAL

LP turbine case

MTS1101D/Inconel 718

General

Price and availability - none

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

NOTE

For more equipment and materials necessary to do this repair, refer to the SPM TASK 70-09-00-400-501, SPM TASK 70-11-03-300-503, SPM TASK 70-23-05-230-501 and SPM TASK 70-34-03-340-501.

NOTE

To identify the consumable materials, refer to the PCI.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Turning latheLOCALTurning lathe
Grinding machineLOCALGrinding machine
Hand held grinderLOCALHand held grinder

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 02-047 TAPE, HEAT REFLECTIVE52152CoMat 02-047
CoMat 02-050 HIGH TEMPERATURE GLASS CLOTH TAPE76381CoMat 02-050
CoMat 03-096 PLASMA SPRAY POWDERLOCALCoMat 03-096
CoMat 05-046 ALUMINUM OXIDE GRIT62596CoMat 05-046

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-50-21-320-070 Machine the Face

      1. NOTE

        If the outer duct support hook was plasma sprayed before, remove the old coating fully in area A1 and A2.

        Machine the hook front face.

      1. Refer to Figure.

        Remove the old coating and damage fully.

        Keep material removal to a minimum.

        Use turning lathe.

    2. SUBTASK 72-50-21-220-185 Examine the Machined Surface

      1. Examine the machined surface dimensionally.

      1. For dimensions refer to Figure.

    3. SUBTASK 72-50-21-230-114 Examine the Machined Surface for Cracks

      1. Do the test for cracks.

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

        Use medium sensitivity level.

        No cracks are permitted.

    4. SUBTASK 72-50-21-110-116 Clean the LP Turbine Case

      1. Aqueous degrease.

      1. Refer to the SPM TASK 70-11-03-300-503.

    5. SUBTASK 72-50-21-340-072 Prepare the Surfaces for the Plasma Spray Procedure

      1. Mask the areas A3 and holes.

      1. Make sure that the surfaces have full protection.

        Refer to Figure.

      2. Grit blast the area A1.

      1. The surface texture must be 120 to 200 microinch RMS (3.0 to 5.0 micrometer Ra).

        Blasting in area A2 is permitted.

        Refer to Figure and the SPM TASK 70-34-03-340-501.

      3. Change the masking, if necessary.

      1. Replace the damaged masking.

        Do not touch or bring unwanted material to the blasted area.

    6. SUBTASK 72-50-21-340-073 Plasma Spray the Prepared Surfaces

      1. Plasma spray the area A1.

      1. Coating in area A2 is permitted if it was blasted before and may be incomplete.

        Refer to Figure.

        Make sure that there is sufficient material to do last machining.

        Refer to the SPM TASK 70-34-03-340-501.

        In area A1 minimum coating thickness is 0.0039 in. (0.10 mm) after machining and maximum coating thickness is 0.0295 in. (0.75 mm) before machining.

      2. Examine the coating.

      1. Refer to the SPM TASK 70-34-03-340-501-002 for acceptance standards.

    7. SUBTASK 72-50-21-340-074 Remove the Protection from the Masked Areas

      1. Remove the masking.

      1. Remove all the tape.

    8. SUBTASK 72-50-21-320-071 Machine the Coated Areas

      1. Machine the coated areas.

      1. For dimensions refer to Figure.

        Refer to the SPM TASK 70-34-03-340-501.

        Use turning lathe or grinding machine.

      2. Remove the coating from holes.

      1. Machine to remove the coating.

        Refer to Figure.

        Too much coating must be finished smoothly.

        Use hand held grinder.

    9. SUBTASK 72-50-21-110-117 Clean the LP Turbine Case

      1. Aqueous degrease.

      1. Refer to the SPM TASK 70-11-03-300-503.

    10. SUBTASK 72-50-21-220-186 Do the Post Repair Inspection

      1. Examine the repaired areas dimensionally.

      1. For actual dimensions refer to Figure.

      2. Examine the coating visually.

      1. Refer to the SPM TASK 70-34-03-340-501.

    11. SUBTASK 72-50-21-380-058 Make a Mark to Identify the Repair

      1. Vibro-peen VRS4490 and applicable beehive symbol adjacent to the part number.

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

    12. Figure: Dimensions and areas before plasma spraying

    Dimensions and areas before plasma spraying

    Figure: Dimensions and areas after plasma spraying

    Dimensions and areas after plasma spraying

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Editorial correction due to conversion

Manufacturer Code:52152
Enterprise Name:3M COMPANY
BU Name:3M CENTER
Department:INDUSTRIAL TAPE AND SPECIALTIES DIV.
Street:BUILDING 220-7W-03
City:ST. PAUL
State:MN
Zip Code:55144-1000
Country:USA
Phone Number:1-651-733-1110, 1-800-362-3550, 1-800-223-7427
Fax Number:1-651-737-4380
Internet:www.mmm.com, www.3m.com
Manufacturer Code:62596
Enterprise Name:MICRO ABRASIVES CORPORATION
BU Name:MICRO ABRASIVES CORPORATION
Street:720 SOUTHAMPTON RD
P.O. Box:669
City:WESTFIELD
State:MA
Zip Code:01085-0669
Country:USA
Phone Number:1-413-562-3641
Fax Number:1-413-562-7409
Internet:www.microgrit.com
Manufacturer Code:76381
Enterprise Name:3M COMPANY
BU Name:3M COMPANY
Department:3M CENTER
City:ST PAUL
State:MN
Zip Code:55144-1000
Country:USA
Phone Number:1-651-733-1110
Fax Number:1-651-733-9973
Internet:www.mmm.com
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:X222X
Supply Number:CoMat 02-047
Type:sp01
Supply Short Name:CoMat 02-047 TAPE, HEAT REFLECTIVE
Supply Name:CoMat 02-047 TAPE, HEAT REFLECTIVE
Specification Groups:
Doc NumberType
If CoMat 02- 047 is specified with no suffix, use one of the CoMat 02-047 letter suffix alternative materials.
Suppliers:
ManufacturerRemarks
X222X
Manufacturer Code:X222X
Supply Number:CoMat 02-050
Type:sp01
Supply Short Name:CoMat 02-050 HIGH TEMPERATURE GLASS CLOTH TAPE
Supply Name:CoMat 02-050 HIGH TEMPERATURE GLASS CLOTH TAPE
Suppliers:
ManufacturerRemarks
X222X
Manufacturer Code:LOCAL
Supply Number:CoMat 03-096
Type:sp01
Supply Short Name:CoMat 03-096 PLASMA SPRAY POWDER
Supply Name:CoMat 03-096 PLASMA SPRAY POWDER
Specification Groups:
Doc NumberType
AMPERIT 298.442 OR AMPERIT 299.442
Suppliers:
ManufacturerRemarks
LOCAL
IAE15
IE252
Manufacturer Code:62596
Supply Number:CoMat 05-046
Type:sp01
Supply Short Name:CoMat 05-046 ALUMINUM OXIDE GRIT
Supply Name:CoMat 05-046 ALUMINUM OXIDE GRIT
Specification Groups:
Doc NumberType
ALUMINUM OXIDE NO. 60
Suppliers:
ManufacturerRemarks
62596
Link not Found
Manufacturer Code:LOCAL
Tool Number:Hand held grinder
Tool Name:Hand held grinder
Manufacturer Code:LOCAL
Tool Number:Turning lathe
Tool Name:Turning lathe