TASK 72-41-11-300-012 HPC Stage 3 - 8 Drum Disk - Blend Repair The Diaphragm Bores By Material Removal, Repair-012 (VRS6149)

DMC:V2500-A0-72-41-1101-05A-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 72-41-11-300-012 HPC Stage 3 - 8 Drum Disk - Blend Repair The Diaphragm Bores By Material Removal, Repair-012 (VRS6149)

Effectivity

FIG/ITEM

PART NO.

01-200

6A3508

01-200

6A3648

01-200

6A3934

01-200

6A3936

01-200

6A4189

01-200

6A4900

01-200

6A5467

01-200

6A5592

01-200

6A5594

01-200

6A5659

01-200

6A6473

01-200

6A7379

01-200

6A7380

01-200

6A7382

01-200

6A7383

01-200

6A7384

01-200

6A7385

01-200

6A7401

01-200

6A7705

01-200

6A8236

01-200

6A8316

01-200

6A8318

01-200

6A8350

01-200

6B1379

01-200

6B1380

01-200

6B1381

01-200

6B1382

01-200

6B1383

01-200

6B1384

01-200

6B1385

01-200

6B1386

01-200

6B1387

01-200

6B1391

01-200

6B1392

01-200

6B1393

01-200

6B1401

01-200

6B1402

01-200

6B1403

01-200

6B1404

01-200

6B1405

01-200

6B1406

Material of component

PART IDENT

MATERIAL

HP Compressor Stage 3 to 8 Disks Shaft Assembly

Titanium alloy

General

This Repair must only be done when the instruction to do so is given in the relevant inspection procedures (identified by the applicable part number) located in section 72-41-11.

The practices and processes referred to in the procedure by the TASK/SUBTASK numbers are in the Standard Practices and Manual (SPM).

If the damage are nicks, dents or scores the maximum depth of damage before material removal is 0.002 in. (0.051 mm) and you must remove damage to 2X depth to a maximum depth of 0.005 in. (0.127 mm)

If the damage is frettage the maximum depth of damage before material removal is 0.005 in. (0.127 mm) and you must remove damage to a maximum depth of 0.005 in. (0.127 mm).

Price and availability

Refer to International Aero Engines

Related repairs - None

NOTE

Equipment and materials necessary to do this Repair are in the SPM TASKS given below:
SPM TASK 70-09-00-400-501
SPM TASK 70-11-08-300-503
SPM TASK 70-11-26-300-503
SPM TASK 70-23-05-230-501
SPM TASK 70-35-03-300-501

NOTE

It is possible that some materials in the consumable materials chart cannot be used for some or all of the necessary applications. Before you use the materials, make sure the types, quantities and applications of the materials necessary are legally permitted in your location. All persons must obey all applicable federal, state, local and provincial laws and regulations when it is necessary to work with these materials.

NOTE

To identify the consumable materials, refer to the Overhaul Processes and Consumable Index Manual (CoMat).

NOTE

Other necessary consumable materials are referred to in the SPM TASKS.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Penetrant Crack Test EquipmentLOCALPenetrant crack test equipment
Standard workshop equipmentLOCALStandard workshop equipment
Chemical cleaning equipmentLOCALChemical cleaning equipment
BinocularsLOCALBinoculars

10x

Workshop inspection equipmentLOCALWorkshop inspection equipment
Vibrating marking pencilLOCALVibrating marking pencil

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 05-020 WATERPROOF SILICON CARBIDELOCALCoMat 05-020
CoMat 05-021 WATERPROOF SILICON CARBIDE44197CoMat 05-021
CoMat 06-022 FLUORESCENT PENETRANT (POST-EMULSIFIED ULTRA HIGH SENSITIVITY)LOCALCoMat 06-022
CoMat 05-078 WATERPROOF SILICON CARBIDELOCALCoMat 05-078
CoMat 05-106 ABRASIVE STONEK6835CoMat 05-106

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-41-11-230-064 Do a Crack Test

      1. Do a local penetrant crack test on the area to be repaired.

      2. Cracks are not permitted.

    2. SUBTASK 72-41-11-350-065 Remove the Damage

      CAUTION

      TITANIUM COMPONENT - YOU MUST USE SILICON CARBIDE TYPE ABRASIVE WHEELS, STONES AND PAPERS TO DRESS, BLEND AND POLISH THIS COMPONENT.

      CAUTION

      TITANIUM COMPONENT - DO NOT USE FORCE WITH MECHANICAL CUTTERS OR THE MATERIAL WILL BECOME TOO HOT.

      CAUTION

      TITANIUM COMPONENT - MAXIMUM SPEED FOR MECHANICAL TOOLS MUST NOT EXCEED 1000 REVOLUTIONS PER MINUTE.

      CAUTION

      TITANIUM COMPONENT - YOU MUST MAKE SURE THAT WHEN YOU REMOVE MATERIAL, BLEND AND POLISH, TO MAKE SMOOTH, THAT NO SPARKS ARE PRODUCED.

      CAUTION

      TITANIUM COMPONENT - IF THE MATERIAL SHOWS A CHANGE IN COLOR, TO A DARKER THAN A LIGHT STRAW COLOR, THE COMPONENT IS TO BE REJECTED.

    1. Refer to Figure and Figure.

      2. Remove small area(s) of damage as necessary.

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

      2. The maximum depth to remove the damage must not be more than 0.005 in (0.13 mm).

      3. The repaired area(s) diameter is to be 50 times the depth.

        1. If material damage is frettage you must dress to depth to a maximum depth of 0.005 in. (0.127 mm).

        2. If material damage is nicks, dents or scores you must dress to 2X depth to a maximum depth of 0.005 in. (0.127 mm).

      4. Polish the area of repair.

      2. Polish the repaired area in a circumferential direction to give a surface finish the same as the adjacent material.

    3. SUBTASK 72-41-11-110-096 Do a Swab Etch

      1. Chemically clean.

      1. Refer to SPM TASK 70-11-08-300-503, SUBTASK 70-11-08-300-001.

      2. Swab etch the repair area(s).

      1. Refer to SPM TASK 70-11-08-300-503, SUBTASK 70-11-08-300-002.

    4. SUBTASK 72-41-11-220-243 Binocular Examine

      1. Binocular examine the repaired area.

      1. Use X10 binoculars.

      2. Indications of surface defects are not permitted.

      3. Make sure that there is no raised metal remaining.

    5. SUBTASK 72-41-11-230-065 Do a Crack Test

      1. Do a local penetrant crack test of the repaired area.

      1. Refer to SPM TASK 70-23-05-230-501.

      3. Cracks are not permitted.

    6. SUBTASK 72-41-11-110-097 Chemically Clean

      1. Chemically clean the repaired area to remove fluorescent penetrant.

      1. Refer to SPM TASK 70-11-26-300-503.

    7. SUBTASK 72-41-11-220-244 Examine the Repair

    1. Refer to Figure.

      2. Do a 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) and the diameter of the repair must not be more than 0.250 in. (6.35 mm).

    8. SUBTASK 72-41-11-350-088 Identify the Repair

    1. Refer to Figure.

      2. Vibro-engrave VRS6149 adjacent to the part number.

      1. Refer to SPM TASK 70-09-00-400-501 SUBTASK 70-09-00-400-001.

      2. NOTE

        If the HP Compressor Stage 3 to 8 Disks Shaft Assembly is already identified with the repair scheme number "VRS6149" from a previous repair application, further identification is not necessary.

    9. Figure: Repair Details and Dimensions

    Repair Details and Dimensions

    Figure: Repair Details and Dimensions

    Repair Details and Dimensions

    Figure: Repair Details and Dimensions

    Repair Details and Dimensions

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised the effectivity table to add part numbers, SPM references in the procedure and added figure 3. (91VR763D)

Manufacturer Code:44197
Enterprise Name:SAINT-GOBAIN INDUSTRIAL CERAMICS INC.
BU Name:SAINT-GOBAIN ABRASIVES, INC
Street:ONE NEW BOND STREET
P.O. Box:PO BOX 15008
City:WORCESTER
State:MA
Zip Code:01615-0008
Country:USA
Phone Number:1-508-795-5000
Fax Number:1-508-795-2828
Internet:www.saint-gobain-northamerica.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:1E1X8
Supply Number:CoMat 05-020
Type:sp01
Supply Short Name:CoMat 05-020 WATERPROOF SILICON CARBIDE
Supply Name:CoMat 05-020 WATERPROOF SILICON CARBIDE
Specification Groups:
Doc NumberType
OMAT: 5/33 (RR REF)WATERPROOF SILICON CARBIDE ABRASIVE PAPER, CAMI GRIT DESIGNATION 320 (ANSI B74.18)
JCR-027 (JAEC REF)
JCR-186 (JAEC REF)
Suppliers:
ManufacturerRemarks
1E1X8
LOCAL
K6835
Manufacturer Code:1E1X8
Supply Number:CoMat 05-021
Type:sp01
Supply Short Name:CoMat 05-021 WATERPROOF SILICON CARBIDE
Supply Name:CoMat 05-021 WATERPROOF SILICON CARBIDE
Specification Groups:
Doc NumberType
OMAT: 5/35 (RR REF)WATERPROOF SILICON CARBIDE ABRASIVE PAPER, CAMI GRIT DESIGNATION 240 (ANSI B74.18 )
JCR-188 (JAEC REF)
Suppliers:
ManufacturerRemarks
1E1X8
K6835
LOCAL
Manufacturer Code:1E1X8
Supply Number:CoMat 05-078
Type:sp01
Supply Short Name:CoMat 05-078 WATERPROOF SILICON CARBIDE
Supply Name:CoMat 05-078 WATERPROOF SILICON CARBIDE
Specification Groups:
Doc NumberType
OMAT: 5/34 (RR REF)WATERPROOF SILICON CARBIDE ABRASIVE PAPER, CAMI GRIT DESIGNATION 280 (ANSI B74.18)
JCR-187 (JAEC REF)
Suppliers:
ManufacturerRemarks
1E1X8
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:X222X
Supply Number:CoMat 06-022
Type:sp01
Supply Short Name:CoMat 06-022 FLUORESCENT PENETRANT (POST-EMULSIFIED ULTRA HIGH SENSITIVITY)
Supply Name:CoMat 06-022 FLUORESCENT PENETRANT (POST-EMULSIFIED ULTRA HIGH SENSITIVITY)
Specification Groups:
Doc NumberType
ARDROX 985-P14 OMAT: 652 (CHEMETALL OAKITE 985-P14)It is not permitted to mix the selected CoMat 06‐022 letter suffix material with other CoMat 06‐022 letter suffix materials. Where CoMat 06‐022 is specified with no suffix, use one of the CoMat 06‐ 022 letter suffix materials.
Suppliers:
ManufacturerRemarks
X222X
Manufacturer Code:LOCAL
Tool Number:Binoculars
Tool Name:Binoculars
Manufacturer Code:LOCAL
Tool Number:Chemical cleaning equipment
Tool Name:Chemical cleaning equipment
Manufacturer Code:LOCAL
Tool Number:Penetrant crack test equipment
Tool Name:Penetrant Crack Test Equipment
Link not Found
Link not Found
Manufacturer Code:LOCAL
Tool Number:Workshop inspection equipment
Tool Name:Workshop inspection equipment