TASK 72-50-24-300-034 LPT Inner Diffuser Duct Support - Weld The Duct Stop, Repair-034 (VRS4320)

DMC:V2500-A0-72-50-2402-03A-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 72-50-24-300-034 LPT Inner Diffuser Duct Support - Weld The Duct Stop, Repair-034 (VRS4320)

Effectivity

FIG/ITEM

PART NO.

01-100

3A2201

01-100

3A2202

01-100

3A2525

01-100

3A2529

Material of component

PART IDENT

SYMBOL

MATERIAL

Inner diffuser support

WL2.4650.7 or MTS1155B (C263)

General

Price and availability - none

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

Remove the clinch nuts before repair and reinstall after repair as per Repair VRS4318, TASK 72-50-24-300-037 (REPAIR-037).

Remove locating pin before repair and reinstall after repair as per Repair VRS4319, TASK 72-50-24-300-036 (REPAIR-036).

NOTE

For more equipment and materials necessary to do this repair, refer to the SPM TASK 70-23-05-230-501 and SPM TASK 70-31-13-310-501.

NOTE

To identify the consumable materials, refer to the PCI.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Milling machineLOCALMilling machine
Turning latheLOCALTurning lathe

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 03-184 WELDING FILLER WIRE, NICKELLOCALCoMat 03-184

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-50-24-140-052 Clean the Inner Diffuser Support

      1. Clean the areas to be welded.

      1. Use silicon carbide rag or similar material.

    2. SUBTASK 72-50-24-310-061 Weld Repair the Inner Diffusor Support

      1. Gas tungsten arc weld the inner duct stop.

      1. Refer to the SPM TASK 70-31-13-310-501.

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

        Refer to Figure and Figure.

        Decrease the temperature of the inner diffusor support to reduce the heat affected zone to a minimum.

    3. SUBTASK 72-50-24-370-057 Heat Treat after Weld Repair

      1. Heat treat the inner diffusor support.

      1. Put the inner diffuser support into a furnace at 1450 to 1500 deg F (788 to 816 deg C) for eight hours. Heating rate is not important.

        Cool in still or agitated air or inert gas.

    4. SUBTASK 72-50-24-230-085 Examine the Welded Areas 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.

    5. SUBTASK 72-50-24-325-073 Machine the Duct Stop of the Inner Diffuser Support

      1. Machine the inner duct stop.

      1. Refer to Figure and Figure.

        Use a milling machine and a turning lathe.

    6. SUBTASK 72-50-24-220-138 Do the Post Repair Inspection

      1. Examine dimensionally the machined areas.

      1. Refer to Figure and Figure.

    7. Figure: Weld inner duct stop at the inner diffusor support

    Sheet 1

    Legend
    Weld inner duct stop at the inner diffusor support

    Sheet 1

    Close

    Figure: Weld inner duct stop at the inner diffuser support

    Sheet 2

    Legend
    Weld inner duct stop at the inner diffuser support

    Sheet 2

    Close

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Editorial correction due to conversion

Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:0XPV7
Supply Number:CoMat 03-184
Type:sp01
Supply Short Name:CoMat 03-184 WELDING FILLER WIRE, NICKEL
Supply Name:CoMat 03-184 WELDING FILLER WIRE, NICKEL
Specification Groups:
Doc NumberType
MSRR9500/16C-263
OMAT:3/62C-263
Suppliers:
ManufacturerRemarks
0XPV7
28553
2R602
80357
IE306
K6970
Manufacturer Code:LOCAL
Tool Number:Milling machine
Tool Name:Milling machine
Manufacturer Code:LOCAL
Tool Number:Turning lathe
Tool Name:Turning lathe