TASK 72-44-30-300-021 Rear Flange-to-Vane Platform Seal Face - Weld Repair, Repair-021 (VRS3813)

DMC:V2500-A0-72-44-3001-03A-627A-C|Issue No:003.00|Issue Date:2019-11-01

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 72-44-30-300-021 Rear Flange-to-Vane Platform Seal Face - Weld Repair, Repair-021 (VRS3813)

Effectivity

FIG/ITEM

PART NO.

01-401

2A0549-01

01-401

2A1374

01-401

2A1398

01-401

2A1617

01-401

2A2034

01-401

2A2034-001

01-401

2A2722-01

01-401

2A2838-01

01-401

2A3344-01

01-401

2A3344-001

01-401

2A3344-002

01-401

2A3351-01

01-401

2A3351-003

01-401

2A3351-004

01-420

2A2718-01

Material of component

DESCRIPTION

MATERIAL

Combustion chamber inner liner

Wrought non-hardenable nickel base alloy

General

Price and availability - refer to IAE.

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

To identify the consumable materials refer to the PCI.

Prerequisites

Make sure that the cleaning and inspection procedures are done before this repair. Refer to TASK 72-44-30-100-001 (CLEANING-001) and TASK 72-44-30-200-001-A00 or TASK 72-44-30-200-001-B00 (INSPECTION-001).

Make sure the liner segments are removed and remove the gangnut channels. Refer to TASK 72-44-30-040-001 (ASSEMBLY-001) and Repair, VRS 3264 TASK 72-44-30-300-003 (REPAIR-003).

Remove existing coating on the rear mounting flange. Refer to Repair, VRS3170 TASK 72-44-30-300-004 (REPAIR-004).

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Rotary austenitic stainless steel brushLOCAL
Silicon carbide wheelLOCAL
Welding equipmentLOCAL

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 03-287 WELDING FILLER WIRELOCALCoMat 03-287

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-44-30-350-106 Remove Wear and/or Existing Coating from the Rear Flange-to-Vane Platform Seal Face

    1. Refer to Figure.

      2. Remove all wear and/or existing coating from the rear flange-to-vane platform seal face to the limits by one or more of the methods that follow:

        1. Remove plasma coat by stripping.

        1. Refer to the SPM TASK 70-33-79-300-503.

        2. Remove plasma coat by high pressure water blast stripping.

        1. Refer to the SPM TASK 70-15-01-160-501.

        3. Machine to remove wear and coat.

        1. Remove minimum amount of material necessary to do the repair.

    2. SUBTASK 72-44-30-110-068 Clean the Combustion Chamber Inner Liner Assembly

      1. Clean the part by aqueous degrease.

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

    3. SUBTASK 72-44-30-220-102 Do a Dimensional Inspection of the Combustion Chamber Inner Liner Assembly

    1. Refer to Figure.

      2. Do a dimensional inspection of the combustion chamber inner liner assembly.

      1. Refer to Figure.

    4. SUBTASK 72-44-30-370-063 Do a Solution Heat Treatment of the Combustion Chamber Inner Liner Assembly (For PN 2A1374, 2A1398, 2A1617, 2A2034, 2A2034-001 and 2A3351-004 only)

      1. Do a solution heat treament of the part.

      1. Refer to SPM TASK 70-37-24-370-501.

        Use argon or vacuum.

        Air cool or faster.

        NOTE

        Use appropriate heat fixture.

    5. SUBTASK 72-44-30-230-066 Fluorescent Penentrant Examine the Combustion Chamber Inner Liner Assembly (For PN 2A1374, 2A1398, 2A1617, 2A2034, 2A2034-001 and 2A3351-004 only)

      1. Do a fluorescent penetrant inspection of the part.

    6. SUBTASK 72-44-30-120-001 Prepare the Repair Area for Weld

    1. Refer to Figure.

    2. Use rotary austenitic stainless steel wire brush or silicon carbide abrasive wheels to remove oxides and prepare the repair area for weld.

      3. Wipe the repair area with isopropyl alcohol.

      1. Refer to the SPM TASK 70-11-26-300-503.

    7. SUBTASK 72-44-30-310-057 Weld Build-up the Repair Area

      CAUTION

      WELDING AT THIS REPAIR AREA CAN DISTORT THE PART. IT IS RECOMMENDED TO USE APPROPRIATE WELD FIXTURES TO MINIMIZE PART DISTORTION.

    1. Refer to Figure.

      2. Weld build-up the repair area by IAE 16-33. Use manual gas tungsten arc weld (GTAW-MA) method. Use CoMat 03-287 WELDING FILLER WIRE.

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

    8. SUBTASK 72-44-30-370-064 Heat Treat the Combustion Chamber Inner Liner Assembly

      1. Do a heat treatment of the part.

        1. Refer to one of the TASKs that follow.

          NOTE

          Use appropriate heat fixture.

        1. Refer to the SPM TASK 70-37-24-370-501. Use argon or vacuum.

        2. Refer to the SPM TASK 70-37-16-370-501. Use argon or vacuum.

    9. SUBTASK 72-44-30-320-007 Finish Machine the Combustion Chamber Inner Liner Assembly

    1. Finish machine the part. Refer to Figure and Figure.

    10. SUBTASK 72-44-30-110-069 Clean the Combustion Chamber Inner Liner Assembly

      1. Clean the part by aqueous degrease.

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

    11. SUBTASK 72-44-30-230-067 Fluorescent Penetrant Examine the Combustion Chamber Inner Liner Assembly

      1. Do a fluorescent penetrant inspection of the part.

    12. SUBTASK 72-44-30-340-058 Postrequisites

      1. Apply plasma coating on the rear mounting flange.

      1. Refer to Repair, VRS3170 TASK 72-44-30-300-004 (REPAIR-004).

      2. Do an inspection of the combustion chamber inner liner assembly.

      1. Refer to TASK 72-44-30-200-001-A00 (INSPECTION/CHECK-001) or TASK 72-44-30-200-001-B00 (INSPECTION/CHECK-001).

      3. Install the liner segments and the gangnut channels.

      1. Refer to TASK 72-44-30-440-001 (ASSEMBLY-001) and Repair, VRS3264 TASK 72-44-30-300-003 (REPAIR-003).

    13. Figure: Repair details and dimensions

    Repair details and dimensions

    Figure: Repair Details and Dimensions (For PNs 2A1374, 2A1398, 2A1617, 2A2034, 2A2034-001 and 2A3351-004 only)

    Repair Details and Dimensions (For PNs 2A1374, 2A1398, 2A1617, 2A2034, 2A2034-001 and 2A3351-004 only)

    Figure: Repair Details and Dimensions (For all PNs except 2A1374, 2A1398, 2A1617, 2A2034, 2A2034-001 and 2A3351-004)

    Repair Details and Dimensions (For all PNs except 2A1374, 2A1398, 2A1617, 2A2034, 2A2034-001 and 2A3351-004)

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised effectivity table to add PN 2A2718-01. (19VC111)

Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:LOCAL
Supply Number:CoMat 03-287
Type:sp01
Supply Short Name:CoMat 03-287 WELDING FILLER WIRE
Supply Name:CoMat 03-287 WELDING FILLER WIRE
Specification Groups:
Doc NumberType
INCONEL 625 AMS 5837 AMS 5837
Suppliers:
ManufacturerRemarks
LOCAL
2R602
55596
58401
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