TASK 72-41-21-300-063 HPC Inner To Outer Case Sealing Ring - Blend Repair, Repair-063 (VRS6255)

DMC:V2500-A0-72-41-2105-00A-649A-C|Issue No:002.00|Issue Date:2016-08-01

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 72-41-21-300-063 HPC Inner To Outer Case Sealing Ring - Blend Repair, Repair-063 (VRS6255)

Effectivity

FIG/ITEM PART NO.

04-745

6A2506

04-745

6A5757

Material of component

PART IDENT

SYMBOL

MATERIAL

H P compressor inner to outer case sealing ring

ENH or EES

Corrosion resistant steel

General

This Repair must only be done when the instruction to do so is given in 72-41-21 Inspection/Check.

This Repair has been raised to repair the surface damage on the HP compressor inner to outer case sealing ring.

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

NOTE

Equivalent materials or equipment can be used.
More equipment and materials necessary to do this repair are given in the SPM TASK 70-23-01-230-501, SPM TASK 70-23-03-230-501 and TASK 70-35-03-300-501.
To identify the consumable materials refer to the PCI.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Workshop inspection equipmentLOCALWorkshop inspection equipment
Penetrant Crack Test EquipmentLOCALPenetrant crack test equipment

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 05-106 ABRASIVE STONEK6835CoMat 05-106
CoMat 05-110 EMERY POLISHING PAPER0AM53CoMat 05-110
CoMat 05-111 EMERY POLISHING PAPER06565CoMat 05-111

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-41-21-350-106 Remove the Damaged Areas

    1. Refer to Figure.

      2. Remove small areas of damage as necessary.

      1. The diameter of the repaired area is to be 50 times the depth of damage.

        The maximum depth of the repaired areas is to be 0.005 in. (0.13 mm).

        Refer to TASK 70-35-03-300-501.

      3. Make the damaged areas smooth.

      4. Polish the area.

      1. Polish the repaired area and the area made smooth. Make sure all the scratches are removed and the surface finish is the same as the adjacent material.

        Refer to TASK 70-35-03-300-501.

    2. SUBTASK 72-41-21-220-265 Examine the Repair

    1. Refer to Figure.

      2. Do a visual and dimensional inspection of the repaired area.

      1. Use workshop inspection equipment.

        Make sure the maximum depth of the repaired area is not more than 0.005 in. (0.13 mm).

    3. SUBTASK 72-41-22-230-113-001 Examine the Sealing Ring for Crack

      1. Do the penetrant crack test.

      1. Cracks are not permitted.

        Refer to the SPM TASK 70-23-01-230-501.

    4. SUBTASK 72-41-22-230-113-002 Examine the Sealing Ring for Cracks

      1. Do the penetrant crack test.

      1. Cracks are not permitted.

        Refer to the SPM TASK 70-23-03-230-501.

    5. Figure: An example of an area to be repaired

    An example of an area to be repaired

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Corrected the SPM Task number

Manufacturer Code:06565
Enterprise Name:SAINT-GOBAIN ABRASIVES
BU Name:SAINT-GOBAIN ABRASIVES
P.O. Box:808
City:TROY
State:NY
Zip Code:12181
Country:USA
Phone Number:1-518-266-2200
Fax Number:1-518-266-2342
Internet:www.saintgobain.com
Manufacturer Code:0AM53
Enterprise Name:IAE INTERNATIONAL AERO ENGINES AG
BU Name:NULL
Building:SUITE 400
Street:628 HEBRON AVENUE
City:GLASTONBURY
State:CT
Zip Code:06033
Country:USA
Manufacturer Code:K6835
Enterprise Name:MED-LAB LTD
BU Name:MED-LAB LTD
Street:COPELAND ST
City:DERBY
Zip Code:DE1 2PU
Country:GREAT BRITAIN
Phone Number:44-1332-349094
Fax Number:44-1332-371237
Email:sales@med-lab.co.uk
Internet:www.med-lab.co.uk
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:K6835
Supply Number:CoMat 05-106
Type:sp01
Supply Short Name:CoMat 05-106 ABRASIVE STONE
Supply Name:CoMat 05-106 ABRASIVE STONE
Specification Groups:
Doc NumberType
(SS-S-736/2/26) (A-A-3068/2-26)SQUARE FINE SS-S-736 TYPE II CLASS A1
Suppliers:
ManufacturerRemarks
K6835
KC1D9
Manufacturer Code:X111X
Supply Number:CoMat 05-110
Type:sp01
Supply Short Name:CoMat 05-110 EMERY POLISHING PAPER
Supply Name:CoMat 05-110 EMERY POLISHING PAPER
Specification Groups:
Doc NumberType
DISCONTINUED
Suppliers:
ManufacturerRemarks
X111X
Manufacturer Code:44197
Supply Number:CoMat 05-111
Type:sp01
Supply Short Name:CoMat 05-111 EMERY POLISHING PAPER
Supply Name:CoMat 05-111 EMERY POLISHING PAPER
Specification Groups:
Doc NumberType
FEPA GRIT SIZE P280 OR P240 EMERY POLISHING PAPER OR ALUMINUM OXIDE ABRASIVE PAPER
Suppliers:
ManufacturerRemarks
44197
K6835
KC1D9
LOCAL
Manufacturer Code:LOCAL
Tool Number:Penetrant crack test equipment
Tool Name:Penetrant Crack Test Equipment
Manufacturer Code:LOCAL
Tool Number:Workshop inspection equipment
Tool Name:Workshop inspection equipment