TASK 72-50-24-300-013 LPT Inner Diffuser Duct Support - Blend Repair, Repair-013 (VRS4119)

DMC:V2500-A0-72-50-2402-00A-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 72-50-24-300-013 LPT Inner Diffuser Duct Support - Blend Repair, Repair-013 (VRS4119)

Effectivity

FIG/ITEM

PART NO.

01-100

3A0104

Material of component

RR

DESCRIPTION

SYMBOL

MATERIAL

Inner diffuser support

C 263

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
External dial caliperLOCALExternal dial caliper

0 - 0.789 in. (0 - 20.0 mm)

Radius gaugeLOCALRadius gauge

0.040 in. (1.0 mm)

Illuminated comparator magnifierLOCALIlluminated comparator magnifier

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-50-24-350-053 General Instructions for the Blend Repair of the Inner Diffuser Support (01-100)

      1. Blend the nicks, dents and pits of the inner diffuser 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 72-50-24-350-054 Blend Repair the Inner Diffuser Support (01-100)

      NOTE

      1. Refer to SUBTASK 72-50-24-350-053 before you do the blend repairs.

      2. Keep material removal to the minimum to remove damage.

      3. For local blending the length to depth ratio must be a minimum of 5:1, refer to Figure.

      4. Unless stated differently, the number of blends is not limited, if there is a number of damage marks close together, blend the whole area to the specified depth. Minimum distance between blends is 0.500in. (12.7 mm).

      1. Blend repair in area 1.

      1. Maximum permitted depth of blend repair is 0.010in. (0.25 mm).

      2. Blend repair in area 2.

      1. Dress to remove the raised material only.

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

      1. Dress to remove the raised material only.

    3. SUBTASK 72-50-24-110-057 Clean the Inner Diffuser Support (01-100)

      1. Vapor degrease the inner diffuser support.

    4. SUBTASK 72-50-24-230-057 Examine the Blend Repaired Areas for Cracks

      1. Do the test for cracks.

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

    5. SUBTASK 72-50-24-110-058 Clean the Inner Diffuser Support (01-100)

      1. Vapor degrease the inner diffuser support.

    6. SUBTASK 72-50-24-220-086 Examine the Blend Repaired Area Visually and Dimensionally

      1. Examine the surface of the blended areas visually.

      1. The blended surface must be as good as the surrounding areas.

        Edges and corners are not permitted.

        Use illuminated comparator magnifier.

      2. Examine the blend repaired areas dimensionally.

      1. Refer to Figure.

        Measure the dimensions of the blended areas.

        The blend ratio must be in the limits given in Step.

        Use radius gage, dial caliper and.

        external dial caliper.

    7. Figure: Blend repair the inner diffuser support (01-100)

    Blend repair the inner diffuser support (01-100)

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 gauge
Tool Name:Radius gauge