TASK 72-44-10-300-020 HPT Stage 1 Support Assembly - Weld Repair, Repair-020 (VRS3637)

DMC:V2500-A0-72-44-1001-01A-627A-C|Issue No:003.00|Issue Date:2015-05-01

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 72-44-10-300-020 HPT Stage 1 Support Assembly - Weld Repair, Repair-020 (VRS3637)

Effectivity

FIG/ITEM

PART NO.

01-010

2A2703

01-010

2A3360

01-010

2A4027

01-010

2A3367

01-010

2A3896

01-010

2A4085

General

Material of component.

PART IDENT

SYMBOL

MATERIAL

Stage 1 HPT support assembly

-

Nickel alloy

Price and availability - refer to IAE.

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

NOTE

To identify the consumable materials, refer to the PCI.

NOTE

  1. You must remove the stage 1 HPT seal from the stage 1 HPT support assembly to do this repair. Refer to TASK 72-44-10-040-001 (DISASSEMBLY).

  2. Additionally, for PN 2A4085, remove the brush seal. Refer to Repair, VRS3771 TASK 72-44-10-300-027 (REPAIR-027).

  3. Remove support flange nuts. Refer to Repair, VRS3272 TASK 72-44-10-300-002 (REPAIR-002).

  4. If present, remove plasma coat from the outside diameter bolt flange rear snap diameter. Refer to Repair, VRS3129, TASK 72-44-10-300-007 (REPAIR-007).

  5. If present, remove plasma coat from the outside diameter bolt flange front snap diameter. Refer to Repair, VRS3270, TASK 72-44-10-300-008 (REPAIR-008).

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Fusion welding equipmentLOCALFusion welding equipment
Machining equipmentLOCALMachining equipment

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 03-284 WELDING FILLER WIRE, NiBASELOCALCoMat 03-284

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-44-10-110-058 Clean the Stage 1 HPT Support

      1. Clean the support.

        1. Do the procedure to degrease parts by aqueous cleaning.

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

    2. SUBTASK 72-44-10-120-060 Remove Plasma Coating from the Rear of the Flange

      1. For PN 2A4085, remove plasma coat from the rear flange inner face.

      1. Repair, VRS3766 TASK 72-44-10-300-025 (REPAIR-025).

      2. For all other part numbers, remove plasma coat from the rear flange inner face.

      1. Repair, VRS3446 TASK 72-44-10-300-018 (REPAIR-018).

    3. SUBTASK 72-44-10-310-005 Weld Repair the Stage 1 HPT Support Assembly

      1. Manually gas tungsten arc weld the area to be repaired.

        1. Do the procedure given in the SPM TASK 70-31-13-310-501.

        2. Apply sufficient weld material to get the correct finish dimension.

    4. SUBTASK 72-44-10-370-004 Stress-Relieve the Stage 1 HPT Support

      1. Stress-relieve the support.

      1. Refer to the SPM TASK 70-37-01-370-501, Cycle 12A.

    5. SUBTASK 72-44-10-320-063 Machine the Stage 1 HPT Support after Weld Repair

    1. Refer to Figure, Figure, Figure and Figure.

    2. Machine the support after weld repair.

    6. SUBTASK 72-44-10-110-059 Clean the Stage 1 HPT Support

      1. Clean the support after repair.

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

    7. SUBTASK 72-44-10-230-069 Fluorescent Penetrant Inspect the Stage 1 HPT Support

      1. Fluorescent penetrant inspect the repaired area.

        1. Use medium sensitivity.

        2. No cracks are permitted.

    8. SUBTASK 72-44-10-300-002 Apply Plasma Coat to the Rear Flange

      1. For PN 2A4085, apply plasma coat on the rear flange inner face.

      1. Repair, VRS3766, TASK 72-44-10-300-042 (REPAIR-042).

      2. For all other part numbers, apply plasma coat to the rear flange.

      1. Do the procedure in Repair 018, VRS3446 TASK 72-44-10-300-018 (REPAIR-018).

    9. SUBTASK 72-44-10-350-069 Postrequisites

      1. Assemble the Stage 1 seal onto the Stage 1 HPT support.

      1. Refer to TASK 72-44-10-440-001 (ASSEMBLY).

      2. Install or replace the Stage 1 HPT support flange nuts.

      1. Repair, VRS3272 TASK 72-44-10-300-002 (REPAIR-002).

      3. If removed, apply plasma coat on the outside diameter bolt flange rear snap diameter.

      1. Repair, VRS3129 TASK 72-44-10-300-007 (REPAIR-007).

      4. If removed, apply plasma coat on the outside diameter bolt flange front snap diameter.

      1. Repair, VRS3270 TASK 72-44-10-300-008 (REPAIR-008).

      5. Additionally, for PN 2A4085, install the brush seal.

      1. Repair, VRS3771 TASK 72-44-10-300-027 (REPAIR-027).

    10. Figure: Repair Details and Dimensions (PN2A2703, 2A3367 and 2A3896)

    Repair Details and Dimensions (PN2A2703, 2A3367 and 2A3896)

    Figure: Repair Details and Dimensions (PN2A3360 and PN2A4027)

    Repair Details and Dimensions (PN2A3360 and PN2A4027)

    Figure: Repair Details and Dimensions (PN 2A4085)

    Sheet 1

    Legend
    Repair Details and Dimensions (PN 2A4085)

    Sheet 1

    Close

    Figure: Repair Details and Dimensions (PN 2A4085)

    Sheet 2

    Legend
    Repair Details and Dimensions (PN 2A4085)

    Sheet 2

    Close

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised format. (editorial change)

Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:LOCAL
Supply Number:CoMat 03-284
Type:sp01
Supply Short Name:CoMat 03-284 WELDING FILLER WIRE, Ni BASE
Supply Name:CoMat 03-284 WELDING FILLER WIRE, NiBASE
Specification Groups:
Doc NumberType
INCONEL 718 AMS 5832 AWS 5.14 MSRR9500/220
INCONEL 718 AMS 5832 AWS 5.14CLASS ER NI FE Cr-2 OMAT:3/206
INCONEL 718 AMS 5832 AWS 5.14CLASS ER NI FE Cr-2
Suppliers:
ManufacturerRemarks
LOCAL
28553
IE137
08489
IE508
0ZDB5
2R602
55596
58401
80357
K6835
Manufacturer Code:LOCAL
Tool Number:Fusion welding equipment
Tool Name:Fusion welding equipment
Manufacturer Code:LOCAL
Tool Number:Machining equipment
Tool Name:Machining equipment