TASK 72-50-21-300-028 LPT Heat Shields - Blend Repair, Repair-028 (VRS4096)

DMC:V2500-A0-72-50-2180-01A-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 72-50-21-300-028 LPT Heat Shields - Blend Repair, Repair-028 (VRS4096)

Effectivity

FIG/ITEM

PART NO.

02-310

3A1975

02-330

3A1981

02-390

3A1964

02-410

3A1968

02-430

3A1956

02-450

3A1962

02-510

3A1945

02-530

3A1949

02-550

3A1937

02-570

3A1943

02-630

3A1922

02-650

3A1926

02-670

3A1928

02-690

3A1930

Material of component

PART IDENT

SYMBOL

MATERIAL

Heatshield, stage 5, rear

INCO 625

Heatshield, stage 5, front

INCO 625

Heatshield, stage 4, rear

INCO 625

Heatshield, stage 4, front

INCO 625

Heatshield, stage 3, rear

INCO 625

Heatshield, stage 3, front

INCO 625

General

Price and availability - none

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

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NONE

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-50-21-350-001 General Instructions for the Blend Repair of the Heatshields

      1. Blend the nicks, dents and burrs.

      1. Use files, needle files and stones to blend the nicks, dents and burrs of the heatshields.

      2. Polish the blended areas.

      1. Use fine stones to polish the blend repaired areas.

        After the blend repair the surface must be as smooth as the initial surface.

        Edges and corners are not permitted.

    3. NOTE

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

    2. SUBTASK 72-50-21-350-002 Blend Repair the Heatshields

      1. Blend the heatshields.

      1. Remove only material which has been raised above the original surface by nicks and burrs.

        Do not reduce the original thickness of the part by the blend repair.

    3. SUBTASK 72-50-21-220-001 Do the Post Repair Inspection of the Heatshields

      1. Visually examine the blend repaired areas.

      1. Refer to the SPM TASK 70-21-01-220-501.

Requirements After Job Completion

Follow-On Conditions

NONE