TASK 72-41-31-300-032 HPC Blank - Blend Repair, Repair-032 (VRS3845)

DMC:V2500-A0-72-41-3120-01A-649A-C|Issue No:001.00|Issue Date:2018-08-01

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 72-41-31-300-032 HPC Blank - Blend Repair, Repair-032 (VRS3845)

Effectivity

FIG/ITEM

PART NO.

01-350

6A3457

Material of component

RR

PART IDENT

SYMBOL

MATERIAL

HP compressor blank

EAF

18/8 stainless steel

General

This repair must only be done when the instruction to do so is given in 72-41-31 Inspection/Check-012.

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

Price And Availability - None

NOTE

Equivalent materials or equipment can be used.

NOTE

More equipment and materials necessary to do this repair are given in the SPM TASKS given below:
SPM TASK 70-35-03-300-501
SPM TASK 70-23-01-230-501
SPMTASK 70-23-03-230-501

NOTE

To identify the consumable materials refer to the PCI.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

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

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 05-106 ABRASIVE STONEK6835CoMat 05-106
CoMat 05-074 ALUMINIUM OXIDE ABRASIVE PAPER06565CoMat 05-074
CoMat 05-111 EMERY POLISHING PAPER06565CoMat 05-111

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-41-31-230-069-003 Do a Crack Test

      1. Do a penetrant crack test.

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

      2. Cracks are not permitted.

    2. SUBTASK 72-41-31-230-069-004 Do a Crack Test

      1. Do a penetrant crack test.

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

      2. Cracks are not permitted.

    3. SUBTASK 72-41-31-350-125 Remove the Damage

    1. Refer to Figure.

      2. Remove the damage.

      2. Make sure the damage marks are completely removed and the area is made smooth in to the adjacent material.

      3. The maximum depth to remove the damage must not be more than 0.005 in. (0.13 mm). The diameter of the repaired area is to be 50 times the depth.

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

      3. Polish the area of repair.

      2. Polish the repaired area to remove the scratches and to give a surface finish the same as the adjacent material.

    4. SUBTASK 72-41-31-220-290 Examine the Repair

    1. Refer to Figure.

      2. Do a visual and dimensional inspection.

      1. Make sure the surface finish is the same as the adjacent material.

      2. The maximum depth of the repair must not be more than 0.005 in. (0.13 mm).

      3. The diameter of the repair must not be more than 0.250 in. (6.25 mm).

    5. SUBTASK 72-41-31-230-070-003 Do a Crack Test

      1. Do a penetrant crack test.

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

      2. Cracks are not permitted.

    6. SUBTASK 72-41-31-230-070-004 Do a Crack Test

      1. Do a penetrant crack test.

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

      2. Cracks are not permitted.

    7. 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:

Added new repair VRS3845. (17VG237)

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: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:44197
Supply Number:CoMat 05-074
Type:sp01
Supply Short Name:CoMat 05-074 ALUMINIUM OXIDE ABRASIVE PAPER
Supply Name:CoMat 05-074 ALUMINIUM OXIDE ABRASIVE PAPER
Specification Groups:
Doc NumberType
ANSI/CAMI GRIT SIZE 180 ALUMINIUM OXIDE ABRASIVE PAPER
Suppliers:
ManufacturerRemarks
44197
K6835
LOCAL
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: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
Link not Found
Manufacturer Code:LOCAL
Tool Number:Workshop inspection equipment
Tool Name:Workshop inspection equipment