TASK 72-50-25-300-015 LPT Outer Diffuser Segment - Replace The Pin, Repair-015 (VRS4152)

DMC:V2500-A0-72-50-2501-01A-920A-C|Issue No:003.00|Issue Date:2020-02-01

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 72-50-25-300-015 LPT Outer Diffuser Segment - Replace The Pin, Repair-015 (VRS4152)

Effectivity

FIG/ITEM

PART NO.

01-200

3A0090

01-200

3A0958

Material of component

DESCRIPTION

IAE SYMBOL

MATERIAL

Outer diffuser segment assembly

Inconel 713C

General

Price and availability - none

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

Make sure that the necessary cleaning and inspection procedures are done before this repair.

NOTE

For more equipment and materials necessary to do this repair, refer to the SPM TASK 70-11-03-300-503, SPM TASK 70-23-05-230-501, SPM TASK 70-31-06-310-501, SPM TASK 70-31-09-310-501, SPM TASK 70-35-23-320-501 and SPM TASK 70-33-06-300-503.
Equivalent equipment may be used.

NOTE

To identify the consumable materials refer to the PCI.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Electro discharge machineLOCALElectro discharge machine

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 03-148 BRAZING FILLER POWDERLOCALCoMat 03-148
CoMat 03-151 HIGH TEMP. BRAZING FILLERPOWDERLOCALCoMat 03-151
CoMat 03-227 WHITE STOP OFFD3309CoMat 03-227

Spares

NameManufacturerPart Number / IdentificationQuantityRemark
Pin3A00922

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-50-25-326-051 Remove the Worn Pin

    1. Refer to Figure.

      2. Machine off the worn 3A0092 .

      1. Electro discharge metal removal according to the SPM TASK 70-35-23-320-501 is permitted.

        Do not remove parent material.

        To get the hole dimensions traces of braze may stay.

    2. SUBTASK 72-50-25-110-060 Clean the Outer Diffuser Segment Assembly

      1. Aqueous cleaning

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

    3. SUBTASK 72-50-25-230-059 Examine the Outer Diffuser Segment Assembly for Cracks

      1. Do the test for cracks.

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

        Use medium sensitivity level.

        No cracks are permitted.

    4. SUBTASK 72-50-25-220-080 Examine the Outer Diffuser Segment Assembly

    1. Refer to Figure.

    2. Examine dimensionally.

    5. SUBTASK 72-50-25-330-053 Nickel Plate the Areas

      1. Nickel plate surfaces if necessary.

      1. Refer to the SPM TASK 70-33-06-300-503.

        Coating thickness to be between 0.0001 to 0.0003 in. (0.003 to 0.008 mm).

    6. SUBTASK 72-50-25-310-051 Braze in the New Pin

    1. Refer to Figure.

      2. Braze the 3A0092 in position.

      1. Refer to the SPM TASK 70-31-09-310-501 and SPM TASK 70-31-06-310-501 for braze cycle.

        When only one 3A0092 is brazed, other 3A0092 must be completely stopped off to prevent braze to flow out of joint.

    7. SUBTASK 72-50-25-110-061 Clean the Outer Diffuser Segment Assembly

      1. Aqueous cleaning

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

        Make sure that CoMat 03-227 WHITE STOP OFF is completely removed.

    8. SUBTASK 72-50-25-220-081 Do the Post Repair Inspection

    1. Refer to Figure.

      2. Examine the repaired areas visually.

      1. Refer to the SPM TASK 70-31-09-310-501.

    3. Examine dimensionally.

    9. Figure: Repair Details and Dimensions

    Repair Details and Dimensions

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised. (EC89VM506/B)

Link not Found
Manufacturer Code:D3309
Enterprise Name:MTU MOTOREN-UND-TURBINE UNION MUNCHEN GMBH
BU Name:MTU MOTOREN-UND-TURBINE UNION MUNCHEN GMBH
Street:DACHAUERSTRASSE 665
P.O. Box:80995
City:MUNCHEN 50
Country:GERMANY
Phone Number:49-89-14890
Fax Number:49-89-1502621
Internet:www.mtu.de
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Link not Found
Manufacturer Code:LOCAL
Supply Number:CoMat 03-148
Type:sp01
Supply Short Name:CoMat 03-148 BRAZING FILLER POWDER
Supply Name:CoMat 03-148 BRAZING FILLER POWDER
Specification Groups:
Doc NumberType
MSRR 9500/97NICROBRAZ LM NICROBRAZ LM (-150 MESH) AMS 4777 B.S.1845 HTN2
OMAT:3/181NICROBRAZ LM NICROBRAZ LM (-150 MESH) AMS 4777 B.S.1845 HTN2
JCR-214NICROBRAZ LM NICROBRAZ LM (-150 MESH) AMS 4777 B.S.1845 HTN2
Suppliers:
ManufacturerRemarks
LOCAL
63585
K6835
U0163
K5086
Manufacturer Code:LOCAL
Supply Number:CoMat 03-151
Type:sp01
Supply Short Name:CoMat 03-151 HIGH TEMP. BRAZING FILLER POWDER
Supply Name:CoMat 03-151 HIGH TEMP. BRAZING FILLERPOWDER
Specification Groups:
Doc NumberType
OMAT: 3/118NICROBRAZ 130 MSRR9500/114
Suppliers:
ManufacturerRemarks
LOCAL
K6835
63585
IE441
U0163
Manufacturer Code:D3309
Supply Number:CoMat 03-227
Type:sp01
Supply Short Name:CoMat 03-227 WHITE STOP OFF
Supply Name:CoMat 03-227 WHITE STOP OFF
Specification Groups:
Doc NumberType
MTH 316NICROBRAZE WHITE STOP OFF
Suppliers:
ManufacturerRemarks
D3309
Manufacturer Code:LOCAL
Tool Number:Electro discharge machine
Tool Name:Electro discharge machine