TASK 72-50-25-300-001 LPT Outer Diffuser Support - Blend Repair, Repair-001 (VRS4138)

DMC:V2500-A0-72-50-2502-00A-649A-C|Issue No:002.00|Issue Date:2013-11-01

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 72-50-25-300-001 LPT Outer Diffuser Support - Blend Repair, Repair-001 (VRS4138)

Effectivity

FIG/ITEM

PART NO.

01-010

3A0084

Material of component

RR

DESCRIPTION

SYMBOL

MATERIAL

Outer diffuser assembly support

C263

General

Price and availability - none

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

In this TASK it can be necessary to refer from one illustration to other illustrations. If this is necessary, the illustrations are identified by the 4th and 5th element numbers only - for example Fig 990-017.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Dial caliperLOCALDial caliper
Illuminated comparator magnifierLOCALIlluminated comparator magnifier
Radius gage setLOCALRadius gage set
External dial caliperLOCALExternal dial caliper

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-50-25-350-051 General Instructions for the Blend Repair of the Outer Diffuser Assembly Support (01-010)

      1. Blend the nicks, dents and pits of the outer diffuser assembly support.

      1. Use files and stones to remove the nicks, dents and pits.

      2. Polish the blended areas.

      1. Use fine stones to make the blended surface as smooth as the initial surface.

        Edges and corners are not permitted.

    2. SUBTASK 72-50-25-350-052 Blend Repair the Outer Diffuser Assembly Support (01-010)

      NOTE

      1. Keep the material removal to the minimum necessary to remove the damage.

      2. For local blending use a length to depth ratio of 5:1 minimum, refer to Figure.

      3. Unless stated differently, there is no limit for the number of blends. If there is a number of damage marks together, blend the whole area to the specified depth. The minimum distance between the blends is 0.500in. (12.7 mm).

      1. Blend repair in area A1.

      1. The maximum permitted depth of blend repair is 0.006in. (0.15 mm).

      2. Blend repair in area A2.

      1. Dress to remove raised material only.

      3. Blend repair the holes, the slots and the locating key.

      1. Dress to remove raised material only.

    3. SUBTASK 72-50-25-230-053 Examine the Outer Diffuser Assembly Support (01-010) for Cracks

      1. Do the test for cracks.

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

        No cracks are permitted.

    4. SUBTASK 72-50-25-220-068 Do the Post Repair Inspection of the Outer Diffuser Assembly Support (01-010)

      1. Examine the surface finish.

      1. Use illuminated comparator magnifier.

        The surface finish of all repairs must be as good as the adjacent areas.

      2. Examine the blend repaired areas dimensionally.

      1. Measure the dimension of the blended areas with dial caliper and external dial caliper.

        The limits are given in Step.

        Use radius gage set to examine the radius at each blend repaired area.

        Refer to Figure.

    5. Figure: Blend repair of the outer diffuser assembly support (01-010)

    Blend repair of the outer diffuser assembly support (01-010)

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Editorial correction due to conversion

Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:LOCAL
Tool Number:Dial caliper
Tool Name:Dial caliper
Manufacturer Code:LOCAL
Tool Number:External dial caliper
Tool Name:External dial caliper
Manufacturer Code:LOCAL
Tool Number:Illuminated comparator magnifier
Tool Name:Illuminated comparator magnifier
Manufacturer Code:LOCAL
Tool Number:Radius gage set
Tool Name:Radius gage set