TASK 72-43-30-300-010 No. 4 Bearing Rear Cooling Duct - Replace Studs, Repair-010 (VRS3561)

DMC:V2500-A0-72-43-3001-00A-920A-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 72-43-30-300-010 No. 4 Bearing Rear Cooling Duct - Replace Studs, Repair-010 (VRS3561)

Effectivity

FIG/ITEM

PART NO.

01-010

2A0891-01

01-010

2A0891-001

01-010

2A1205-01

01-010

2A1205-001

01-010

2A3078-01

01-010

2A3808-01

Material of component

PART IDENT

SYMBOL

MATERIAL

No. 4 Bearing Rear Cooling Duct

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
Silicon carbide wheelLOCALSilicon carbide wheel
Stress-relief equipmentLOCALStress-relief equipment
Welding equipmentLOCALWelding equipment
Fluorescent Penetrant Inspection EquipmentLOCALFluorescent Penetrant Inspection Equipment

Consumables, Materials and Expendables

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

Spares

NameManufacturerPart Number / IdentificationQuantityRemark
SPACER - NO. 4 BEARING COOLING DUCT0AM532A3383AR

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-43-30-350-061 Remove the Damaged No. 4 Bearing Cooling Duct Studs

    1. Remove the damaged studs.

    2. SUBTASK 72-43-30-120-052 Clean the Repair Area of the No. 4 Bearing Cooling Duct

      1. Clean the area to be welded.

      1. Use silicon-carbide wheel or equivalent.

    3. SUBTASK 72-43-30-350-062 Locate the New Stud in Position

      1. Locate the new stud in position using suitable fixture.

      1. Refer to Figure, Figure and Figure.

    4. SUBTASK 72-43-30-310-054 Weld the New Studs

      1. Weld the new studs into position.

      1. Use Comat 03-284 welding wire. Refer to the SPM TASK 70-31-13-310-501.

      2. Shim the housing as required to minimize the mismatch between stud and housing.

      1. Maximum allowable mismatch is 50% of thickness of thinnest piece (housing or stud).

    5. SUBTASK 72-43-30-350-063 Blend the No. 4 Bearing Cooling Duct after Weld Repair

      1. Blend the weld repaired area to the contour of the adjacent areas.

      1. Refer to the SPM TASK 70-35-21-350-501.

    6. SUBTASK 72-43-30-230-059 Examine the No. 4 Bearing Cooling duct

      1. Fluorescent penetrant inspect the cooling duct.

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

    7. SUBTASK 72-43-30-350-064 Stress-Relieve the No. 4 Bearing Cooling Duct

      1. Stress-relieve the cooling duct.

      1. Refer to the SPM TASK 70-37-01-370-501.

    8. SUBTASK 72-43-30-230-060 Examine the No. 4 Bearing Cooling Duct for Cracks

      1. Fluorescent penetrant inspect the cooling duct for cracks.

    9. SUBTASK 72-43-30-220-065 Examine the No. 4 Bearing Cooling Duct After Repair

      1. Examine the cooling duct after repair.

      1. Refer to TASK 72-43-30-200-001 (INSPECTION-000).

        .

        Refer to Figure, Figure and Figure.

    10. SUBTASK 72-43-30-380-052 Mark the Repair

      1. Mark VRS3561 next to part number using vibropeen method.

      1. Refer to the SPM TASK 70-09-00-400-501.

    11. Figure: Repair Details and Dimensions

    Repair Details and Dimensions

    Figure: Repair Details and Dimensions

    Repair Details and Dimensions

    Figure: Repair Details and Dimensions

    Repair Details and Dimensions

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised format. (editorial change)

Manufacturer Code:0AM53
Enterprise Name:IAE INTERNATIONAL AERO ENGINES AG
BU Name:NULL
Building:SUITE 400
Street:628 HEBRON AVENUE
City:GLASTONBURY
State:CT
Zip Code:06033
Country:USA
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Part Number:2A3383
Part Name:SPACER - NO. 4 BEARING COOLING DUCT
Manufacturer Code:0AM53
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
Link not Found
Manufacturer Code:LOCAL
Tool Number:Silicon carbide wheel
Tool Name:Silicon carbide wheel
Manufacturer Code:LOCAL
Tool Number:Stress-relief equipment
Tool Name:Stress-relief equipment
Manufacturer Code:LOCAL
Tool Number:Welding equipment
Tool Name:Welding equipment