TASK 75-24-49-300-011 LPT ACC Support Assemblies - Blend Repair Surface Damage, Repair-011 (VRS4255)

DMC:V2500-A0-75-24-4915-00A-649A-C|Issue No:001.00|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 75-24-49-300-011 LPT ACC Support Assemblies - Blend Repair Surface Damage, Repair-011 (VRS4255)

Effectivity

FIG/ITEM

PART NO.

02-490

3A0564

02-720

3A0580

03-490

3A0573

03-720

3A0677

04-010

3A0568

04-410

3A0577

Material of component

PART IDENT

SYMBOL

MATERIAL

Support assemblies

C 263

General

Price and availability

Refer to IAE for any of these items.

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

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Radius gage setLOCALRadius gage set
Dial CaliperLOCALDial Caliper
Illuminated comparator magnifierLOCALIlluminated comparator magnifier
Dial GageLOCALDial Gage

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 75-24-49-350-057 General Instructions for the Blend Repair of the Support Assemblies (02-490, 02-720, 03-490, 03-720, 04-010 and 04-410)

      1. Blend the nicks, dents or pits of the duct assemblies.

      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 75-24-49-350-058 Blend the Support Assemblies (02-490, 02-720, 03-490, 03-720, 04-010 and 04-410)

      NOTE

      Keep material removal to the minimum to remove damage.
      For local blend repair, use a length to depth ratio of 5:1 minimum (refer to Figure).
      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. Minimum distance between blends is 0.500 in. (12.7 mm).

      1. Blend repair in area A1.

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

      2. Blend repair in area A2.

      1. No blend repair necessary.

      2. Remove raised material only.

    3. SUBTASK 75-24-49-230-057 Examine the Support Assemblies (02-490, 02-720, 03-490, 03-720, 04-010 and 04-410) for Cracks

      1. Do the test for cracks.

      1. Examine all blended areas.

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

    4. SUBTASK 75-24-49-220-076 Do the Post Repair Inspection of the Support Assemblies (02-490, 02-720, 03-490, 03-720, 04-010 and 04-410)

      1. Examine the surface finish.

      2. The surface finish of all repairs must be as good as surrounding areas.

      2. Examine the blend repaired areas dimensionally.

      1. Refer to Figure.

      3. Measure the dimensions of the blended areas.

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

    5. Figure: Blend Repair of The Support Assembly

    Blend Repair of The Support Assembly

    Blend Repair of The Support Assembly

Requirements After Job Completion

Follow-On Conditions

NONE
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Link not Found
Manufacturer Code:LOCAL
Tool Number:Dial Gage
Tool Name:Dial Gage
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