TASK 72-50-24-300-044 LPT Inner Diffuser Duct Segment - Weld Repair The Location Slot, Repair-044 (VRS4410)

DMC:V2500-A0-72-50-2401-01A-627A-C|Issue No:002.00|Issue Date:2015-08-01

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 72-50-24-300-044 LPT Inner Diffuser Duct Segment - Weld Repair The Location Slot, Repair-044 (VRS4410)

Effectivity

FIG/ITEM

PART NO.

01-010

3A0108

01-010

3A2493

Material of component

PART IDENT

SYMBOL

MATERIAL

Inner duct segment A/O

MTS1189A

General

Price and availability - none

The practices and processes referred to in this 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 70-11-34-300-503, SPM TASK 70-23-05-230-501, SPM TASK 70-31-13-310-501 and SPM TASK 70-37-00-370-501.
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 primary tool number.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NONE

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 03-283 COATING ALLOY0CZB2CoMat 03-283

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-50-24-110-147 Prepare the Surfaces before Weld Repair

      1. Clean the surfaces to be welded.

      1. Use silicon rag or equivalent.

    2. SUBTASK 72-50-24-230-102 Examine Surfaces to be Welded

      1. Do the test for cracks.

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

        No cracks permitted.

    3. SUBTASK 72-50-24-110-148 Clean the Support Ring Assembly

      1. Aqueous degrease.

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

    4. SUBTASK 72-50-24-310-065 Weld Repair the Worn Surfaces

      1. Build up surfaces. Use manual tungsten inert gas weld technique.

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

        Deposit enough material to permit final machining.

    5. SUBTASK 72-50-24-370-059 Heat Treat after Weld repair

      1. Heat treat the component.

      1. Refer to the SPM TASK 70-37-00-370-501.

        Put in an oven for two hours at 1575 to 1625 deg. F (857 to 885 deg. C).

        Use argon or vacuum.

        Cooloing rate equivalent to air cooling.

    6. SUBTASK 72-50-24-230-103 Examine the Welded Areas for Cracks

      1. Do the test for cracks.

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

        Fine surface cracks are permitted as follows:

        An unlimited number of linear/non-linear discontinuities are permitted in the weld material and heat affected zones as long as they do not extend to an edge.

        Maximum length of linear discontinuities is 0.050in. (1.27 mm).

        The maximum length if non-linear discontinuities is 0.020in. (0.50 mm).

      2. Clean the component.

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

    7. SUBTASK 72-50-24-320-062 Machine the Welded Areas

      1. Machine the welded area.

      1. Refer to Figure.

      2. Dress all surplus weld to original contours.

      1. Welded areas must be blended in to the adjacent surfaces.

        Surface finish must be the same as adjacent surface.

    8. SUBTASK 72-50-24-220-184 Examine Machined Area

      1. Dimensionally examine the component.

      1. Refer to Figure.

    9. SUBTASK 72-50-24-230-104 Examine the Machined Area for Cracks

      1. Do the test for cracks.

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

        Only cracks refered to in Step are permitted.

    10. SUBTASK 72-50-24-110-149 Clean the Component

      1. Clean the duct segment.

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

    11. Figure: Dimensions for weld repair of the inner duct segment

    Sheet 1

    Legend
    Dimensions for weld repair of the inner duct segment

    Sheet 1

    Close

    Figure: Dimensions for weld repair of the inner duct segment

    Sheet 2

    Legend
    Dimensions for weld repair of the inner duct segment

    Sheet 2

    Close

    Figure: Dimensions for weld repair of the inner duct segment

    Sheet 3

    Legend
    Dimensions for weld repair of the inner duct segment

    Sheet 3

    Close

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised note to remove "materials or". (PSAF 15VC314)

Manufacturer Code:0CZB2
Enterprise Name:DELETED. REFER TO VENDOR CODE 1YSY4.
Manufacturer Code:0CZB2
Supply Number:CoMat 03-283
Type:sp01
Supply Short Name:CoMat 03-283 COATING ALLOY
Supply Name:CoMat 03-283 COATING ALLOY
Specification Groups:
Doc NumberType
POWDER PWA 694
Suppliers:
ManufacturerRemarks
0CZB2