TASK 72-50-21-300-007 LPT Case - Plasma Spray The Front Flange Snap Diameter, Repair-007 (VRS4010)

DMC:V2500-A0-72-50-2101-01A-609A-C|Issue No:003.00|Issue Date:2017-02-01

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 72-50-21-300-007 LPT Case - Plasma Spray The Front Flange Snap Diameter, Repair-007 (VRS4010)

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

DESCRIPTION

SYMBOL

MATERIAL

LP turbine case

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 equipment and materials necessary to do this repair refer to the SPM TASKS given below:
TASK 70-34-03-340-501
TASK 70-11-03-300-503
TASK 70-09-00-400-501
TASK 70-23-05-230-501
Equivalent equipment may be used.

NOTE

To identify the consumable materials refer to the PCI.

NOTE

Special tools are identified in the procedure by the tool primary number.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Dial caliperLOCALDial caliper
Dry blast cabinetLOCALDry blast cabinet
Micrometer0AM53Micrometer
Illuminated magnifier (portable)LOCALIlluminated magnifier (portable)
Radius gage setLOCALRadius gage set
Roughness microtesterLOCALRoughness microtester
Vertical turning latheLOCALVertical turning lathe
IAE 3M14315 Turning fixture0AM53IAE 3M143151
IAE 3M14316 Masking fixture0AM53IAE 3M143161
Base plate0AM53IAE 3M143801
Masking fixture0AM53IAE 3M143811

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 03-089 METAL SPRAYING POWDER Ni/Al (95/5)00741CoMat 03-089
CoMat 03-090 METAL SPRAYING POWDER Ni/Al (95/5)0AM53CoMat 03-090
CoMat 05-046 ALUMINUM OXIDE GRIT62596CoMat 05-046

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-50-23-325-051 Machine the Diameter D1 of the LP Turbine Case Front Flange

      NOTE

      If the snap diameter of the LP turbine case front flange snap diameter was plasma spray repaired before, remove the old coating fully.

      1. Machine the diameter D1.

      1. Use the IAE 3M14315 Turning fixture 1 off, the Base plate 1 off and vertical turning lathe.

      2. Refer to Figure.

      3. Keep material removal at diameter D1 to the minimum to allow subsequent repairs.

      4. Remove the old coating and damage fully.

    2. SUBTASK 72-50-21-220-079 Examine the Machined Surfaces

      1. Examine the machined surfaces dimensionally.

      1. For dimensions refer to Figure.

      2. Use micrometer, radius gage set and dial caliper.

    3. SUBTASK 72-50-21-230-062 Examine the Machined Surfaces for Cracks

      1. Do the test for cracks.

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

      2. Use medium sensitivity level.

      3. No cracks are permitted.

    4. SUBTASK 72-50-21-110-061 Clean the LP Turbine Case (01-010)

      1. Aqueous degrease.

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

    5. SUBTASK 72-50-21-340-051 Prepare the Surfaces for the Plasma Spray Procedure

      1. Mask the areas A3.

      1. Use the IAE 3M14316 Masking fixture 1 off and the Masking fixture 1 off.

      2. Make sure that all adjacent surfaces are fully protected.

      4. Refer to Figure.

      2. Grit blast the area A1.

      1. Use dry blast cabinet, CoMat 05-046 ALUMINUM OXIDE GRIT.

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

      3. Blasting in area A2 is permitted, refer to Figure.

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

      3. Replace the masking if necessary.

      1. Replace the damaged masking.

      2. Do not touch or bring unwanted material on to the blasted areas.

    6. SUBTASK 72-50-21-340-052 Plasma Spray the Prepared Surfaces

      1. Plasma spray the area A1.

      1. Overspray in area A2 is permitted, if it was blasted before, refer to Figure.

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

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

    7. SUBTASK 72-50-21-340-053 Remove the Protection from the Masked Areas

      1. Remove the masking.

      1. Remove the IAE 3M14316 Masking fixture 1 off, the Masking fixture 1 off and all the tape.

    8. SUBTASK 72-50-21-325-052 Machine the Coated Areas

      1. Machine the coated areas and the chamfer.

      1. Use the IAE 3M14315 Turning fixture 1 off and vertical turning lathe.

      2. For dimensions refer to Figure.

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

    9. SUBTASK 72-50-21-110-063 Clean the LP Turbine Case (01-010)

      1. Aqueous degrease.

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

    10. SUBTASK 72-50-21-220-080 Do the Post Repair Inspection

      1. Examine the repaired areas dimensionally.

      1. For actual dimensions refer to Figure.

      2. Use dial caliper, micrometer, roughness microtester and radius gage set.

      2. Examine the coating.

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

      2. Use illuminated magnifier.

    11. SUBTASK 72-50-21-380-051 Make a Mark to Identify the Repair

      1. Vibropeen VRS4010 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 for LP turbine case front flange snap diameter repair (before repair)

    Dimensions and areas for LP turbine case front flange snap diameter repair (before repair)

    Figure: Dimensions and areas for LP turbine front flange snap diameter repair (after repair)

    Dimensions and areas for LP turbine front flange snap diameter repair (after repair)

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Incorporated tooling. (editorial)

Change Type:

Incorporated link. (editorial)

Manufacturer Code:00741
Enterprise Name:Was BOC GASES
BU Name:DELETED, REFER TO SUPPLIER CODE 46AN7
Manufacturer Code:0AM53
Enterprise Name:IAE INTERNATIONAL AERO ENGINES AG
BU Name:NULL
Building:SUITE 400
Street:628 HEBRON AVENUE
City:GLASTONBURY
State:CT
Zip Code:06033
Country:USA
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:33870
Supply Number:CoMat 03-089
Type:sp01
Supply Short Name:CoMat 03-089 METAL SPRAYING POWDER Ni/Al (95/5)
Supply Name:CoMat 03-089 METAL SPRAYING POWDER Ni/Al (95/5)
Specification Groups:
Doc NumberType
PWA 1337 (PW REF)NI-109 or NI-970 or AI 1037
Suppliers:
ManufacturerRemarks
33870
Manufacturer Code:X111X
Supply Number:CoMat 03-090
Type:sp01
Supply Short Name:CoMat 03-090 METAL SPRAYING POWDER Ni/Al(95/5)
Supply Name:CoMat 03-090 METAL SPRAYING POWDER Ni/Al (95/5)
Specification Groups:
Doc NumberType
DELETED Use CoMat 03-089
Suppliers:
ManufacturerRemarks
X111X
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
Manufacturer Code:LOCAL
Tool Number:Dial caliper
Tool Name:Dial caliper
Manufacturer Code:LOCAL
Tool Number:Dry blast cabinet
Tool Name:Dry blast cabinet
Manufacturer Code:0AM53
Tool Number:IAE 3M14315
Tool Name:IAE 3M14315 Turning fixture
Manufacturer Code:0AM53
Tool Number:IAE 3M14316
Tool Name:IAE 3M14316 Masking fixture
Link not Found
Link not Found
Manufacturer Code:LOCAL
Tool Number:Illuminated magnifier (portable)
Tool Name:Illuminated magnifier (portable)
Link not Found
Manufacturer Code:LOCAL
Tool Number:Radius gage set
Tool Name:Radius gage set
Manufacturer Code:LOCAL
Tool Number:Roughness microtester
Tool Name:Roughness microtester
Manufacturer Code:LOCAL
Tool Number:Vertical turning lathe
Tool Name:Vertical turning lathe