TASK 72-45-24-300-029 HPT Stage 2 Ring Segment And Vane Cluster - Weld Repair Feather Seal Slot Damage, Repair-029 (VRS3681)

DMC:V2500-A0-72-45-2401-06A-627A-C|Issue No:002.00|Issue Date:2018-08-01

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 72-45-24-300-029 HPT Stage 2 Ring Segment And Vane Cluster - Weld Repair Feather Seal Slot Damage, Repair-029 (VRS3681)

Effectivity

FIG/ITEM

PART NO.

02-050

2A4462

02-120

2A0088-01

02-120

2A1106-01

02-120

2A3431-01

02-260

2A4562

Material of component

PART IDENT

SYMBOL

MATERIAL

Stage 2 HPT air sealing ring segment

-

Nickel alloy

General

Price and availability - Refer to IAE.

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

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Fusion welding equipmentLOCALFusion welding equipment
Grinding equipmentLOCALGrinding equipment
Penetrant inspection equipmentLOCALPenetrant inspection equipment
Plasma spray equipmentLOCALPlasma spray equipment

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 03-197 WELDING FILLER WIRELOCALCoMat 03-197

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-45-24-350-101 Disassemble the Stage 2 HPT Segment and Vane Cluster

      1. Disassemble the segment and vane cluster.

      1. Refer to Repair, VRS3319 TASK 72-45-24-300-009 (REPAIR-009).

    2. SUBTASK 72-45-24-120-003 Grit Blast the Repair Area

      1. Grit blast worn flange area to be repaired.

    3. SUBTASK 72-45-24-350-102 Repair the Worn Surface Area on the Ring Segment Feather Seal Slot

    1. Refer to Figure.

      2. Weld repair the feather seal slot.

        1. Weld build up the area by the Manual Gas Tungsten Arc method. Use CoMat 03-197 WELDING FILLER WIRE. Use a cooled copper chill block during the welding process to minimize flange distortion during welding.

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

    3. Stress relieve the air sealing ring segment at 1800 deg F (982.2 deg C) plus or minus 25 deg F (14 deg C) for one hour in a protective atmosphere or vacuum.

      NOTE

      You can stress relieve the ring segment after you do the EDM procedure and blending, or the machining. The EDM procedure and the machining steps are interchangeable.

    4. SUBTASK 72-45-24-320-056 Machine the Air Sealing Ring Segment

    1. Refer to Figure.

      2. Form a feather seal slot.

      1. Use an electrical discharge machine (EDM) to make the feather seal slot to the dimensions shown.

    5. SUBTASK 72-45-24-320-057 Blend or Machine the Excess Weld from the Air Sealing Ring Segment

    1. Refer to Figure.

      2. Blend or machine the excess weld material flush with the adjacent parent material on surfaces C1 and C2.

      1. An excess build up of 0.010 in. (0.25 mm) is permitted on surface D1.

    6. SUBTASK 72-45-24-220-151 Inspect the Repaired Air Sealing Ring Segment

      1. Inspect the repaired air sealing ring segment.

      1. The maximum allowed distortion at corner B after repair is 0.010 in. (0.25 mm). Minimum thickness of the repaired area is 0.025 in. (0.64 mm) after final blending or machining.

    7. SUBTASK 72-45-24-230-068 Fluorescent Penetrant Inspect the Repaired Area

      1. Fluorescent penetrant inspect the repaired area.

      1. Refer to SPM TASK 70-23-05-230-501 or SPM TASK 70-23-08-230-501. No cracks are permitted.

    8. SUBTASK 72-45-24-350-103 Mark the Ring Segment with the Repair Symbol

    1. Refer to Figure.

    2. Mark the ring segment with the repair symbol.

    9. SUBTASK 72-45-24-350-104 Assemble the Stage 2 HPT Segment and Vane Cluster

      1. Assemble the segment and vane cluster.

      1. Refer to Repair, VRS3319 TASK 72-45-24-300-009 (REPAIR-009).

    10. Figure: Repair Details and Dimensions

    Repair Details and Dimensions

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised the effectivity table to add partnumbers. (18VC123)

Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:LOCAL
Supply Number:CoMat 03-197
Type:sp01
Supply Short Name:CoMat 03-197 WELDING FILLER WIRE
Supply Name:CoMat 03-197 WELDING FILLER WIRE
Specification Groups:
Doc NumberType
MSRR9500/215HASTELLOY X
OMAT:3/165AMS 5798
OMAT:3/165
Suppliers:
ManufacturerRemarks
LOCAL
07098
IE508
0B491
2R602
36346
55596
57965
58401
80357
IE306
K6835
1GD26
Manufacturer Code:LOCAL
Tool Number:Fusion welding equipment
Tool Name:Fusion welding equipment
Manufacturer Code:LOCAL
Tool Number:Grinding equipment
Tool Name:Grinding equipment
Manufacturer Code:LOCAL
Tool Number:Penetrant inspection equipment
Tool Name:Penetrant inspection equipment
Manufacturer Code:LOCAL
Tool Number:Plasma spray equipment
Tool Name:Plasma spray equipment