TASK 72-50-24-300-035 LPT Inner Diffuser Duct Support - Plasma Spray The Inner Duct Locating Diameter, Repair-035 (VRS4321)

DMC:V2500-A0-72-50-2402-04A-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 72-50-24-300-035 LPT Inner Diffuser Duct Support - Plasma Spray The Inner Duct Locating Diameter, Repair-035 (VRS4321)

Effectivity

FIG/ITEM

PART NO.

01-100

3A2201

01-100

3A2202

01-100

3A2525

01-100

3A2529

Material of component

PART IDENT

SYMBOL

MATERIAL

Support Diffuser, Inner

WL2.4650.7 or

MTS1155B (C236)

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 70-11-34-300-503, 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
Milling machineLOCALMilling machine

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 72-50-24-325-074 Machine the Inner Duct Locating Diameter

      NOTE

      Remove the old coating fully, if the inner duct locating diameter was plasma sprayed before.

      1. Machine the inner duct locating diameter.

      1. Refer to Figure.

        Remove the old coating and damage fully.

        Keep material removal to a minimum.

        Use milling machine.

    2. SUBTASK 72-50-24-220-139 Examine the Machined Surface

      1. Examine dimensionally.

      1. Refer to Figure for dimensions.

    3. SUBTASK 72-50-24-230-086 Examine the Machined Surface for Cracks

      1. Do the test for cracks.

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

        Use medium sensitivity level.

        No cracks are permitted.

    4. SUBTASK 72-50-24-110-103 Clean the Support Diffuser, Inner

      1. Aqueous degrease.

      1. Refer to the SPM TASK 70-11-34-300-503.

    5. SUBTASK 72-50-24-340-075 Prepare the Surfaces for the Plasma Spray Procedure

      1. Mask the areas A3.

      1. Make sure that the surfaces have full protection.

        Refer to Figure.

      2. Grit blast the areas A1.

      1. 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 on the blasted area.

    6. SUBTASK 72-50-24-340-076 Plasma Spray the Prepared Surfaces

      1. Plasma spray the area A1.

      1. Coating in area A2 is permitted.

        Refer to Figure.

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

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

      2. Examine the coating.

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

    7. SUBTASK 72-50-24-340-077 Remove the Protection from the Masked Areas

      1. Remove the masking.

      1. Remove all the tape.

    8. SUBTASK 72-50-24-325-075 Machine the Coated Areas

      1. Machine the coated areas.

      1. Uniform runout of coating is permitted in area A2.

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

        Use milling machine.

    9. SUBTASK 72-50-24-110-105 Clean the Support Diffuser, Inner

      1. Aqueous degrease.

      1. Refer to the SPM TASK 70-11-34-300-503.

    10. SUBTASK 72-50-24-220-140 Do the Post Repair Inspection

      1. Examine the machined areas dimensionally.

      1. Refer to Figure.

      2. Examine the coating visually.

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

    11. SUBTASK 72-50-24-350-072 Make a Mark to Identify the Repair

      1. Vibropeen VRS4321 and applicable beehive symbol adjacent to the part number.

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

    12. Figure: Plasma spray the inner duct locating diameter

    Plasma spray the inner duct locating diameter

    Figure: Plasma spray the inner duct locating diameter

    Sheet 1

    Legend
    Plasma spray the inner duct locating diameter

    Sheet 1

    Close

    Figure: Plasma spray the inner duct locating diameter

    Sheet 2

    Legend
    Plasma spray the inner duct locating diameter

    Sheet 2

    Close

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
Manufacturer Code:LOCAL
Tool Number:Milling machine
Tool Name:Milling machine