TASK 72-41-12-300-004 HPC Stage 9 - 12 Drum Disk - Blend Repair, Repair-004 (VRS3436)

DMC:V2500-A0-72-41-1201-00A-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 72-41-12-300-004 HPC Stage 9 - 12 Drum Disk - Blend Repair, Repair-004 (VRS3436)

Effectivity

FIG/ITEM

PART NO.

01-600

2A2100-01

01-600

2A2200-01

01-600

2A2600-01

01-600

2A3200-01

01-600

2A3300-01

01-600

2A3400-01

01-600

2A3500-01

Material of component

RR

DESCRIPTION

SYMBOL

MATERIAL

Rear HPC Drum Disk

-

Nickel alloy

General

This blend repair uses the rotary or manual type of consumable materials. Use only the consumable materials specific for each type of repair.

The maximum rotary equipment speed is 18,000 rpm.

Use the rotary consumable material only in the sequence given below or damage to the part will result. It is not necessary to use all of the rotary equipment for each repair. When you start with a rotary consumable material you must use all the subsequent materials through (4). For example, if you use the material in (2) you must also use all the materials in (3) and (4):

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

Price and availability - refer to IAE

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Rotary equipmentLOCALRotary equipment
Workshop inspection equipmentLOCALWorkshop inspection equipment

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 05-143 STONE, BROWN INDIA (MEDIUM)9K848CoMat 05-143
CoMat 05-144 WHEEL, BEAR-TEX UNIFIED DEBURRING9K848CoMat 05-144
CoMat 05-145 WHEEL, CLOTH BUFFIAE65CoMat 05-145
CoMat 05-146 WHEEL, SILICON CARBIDE ABRASIVE COAT DELETED0AM53CoMat 05-146
CoMat 05-147 WHEEL, RUBBER BONDED GRINDINGLOCALCoMat 05-147
CoMat 05-148 STONE, WHITE ARKANSAS (HARD)06565CoMat 05-148
CoMat 05-149 COMPOUND, BUFFING AND POLISHINGIAE65CoMat 05-149
CoMat 05-146 WHEEL, SILICON CARBIDE ABRASIVE COAT DELETED0AM53CoMat 05-146

Spares

NONE

Safety Requirements

CAUTION

USE THIS REPAIR FOR THE DAMAGED PARTS WHICH HAVE LESS THAN THEIR LIFE CYCLE LIMIT. THIS REPAIR WILL NOT EXTEND THE LIFE CYCLE. DO NOT REPAIR ANY DISK THAT HAS A CRACK OR AN INDICATION THAT IS NOT CLEARLY THE RESULT OF LOCAL DAMAGE SUCH AS DENTS, NICKS, SCRATCHES AND CORROSION PITS. IF CRACKS OR OTHER UNUSUAL CONDITIONS ARE FOUND BY THE PENETRANT TEST OR VISUAL INSPECTION, REJECT THE PART.

Procedure

    1. SUBTASK 72-41-12-350-053-001 Blend the Disk (Rotary Method)

    1. WARNING

      WEAR EYE PROTECTION WHEN YOU OPERATE THE ROTARY EQUIPMENT. DISCHARGE AIR WILL BLOW LOOSE GRIT AND MATERIALS WHICH CAN CAUSE INJURY TO A PERSON.

      Refer to Figure.

    2. Blend the surface damage such as dents, nicks, scratches and corrosion pits.

    3. Blend repair at location 1 is not permitted.

      4. Blend repair scattered surface damage at location 2 to a maximum depth of 0.005in. (0.127 mm). Do not blend both sides of the disk surfaces at the same location. Additional blend repair limits are given at specific locations on the figure.

      1. Use the rotary consumable materials by the procedures given in the general section.

      2. Make the abrasive coat become soft on the CoMat 05-146 WHEEL, SILICON CARBIDE ABRASIVE COAT DELETED and remove the rough or unwanted grit until the wheel surface is smooth before you do the blend repair.

      3. All blended areas must be smooth and continuous.

      4. The surface finish must be 63AA or smoother.

      5. The minimum blend area to depth ratio is 100 to 1.

      6. Remove all the lifted material.

      7. Remove only the minimum quantity of material that is necessary to do the repair.

      8. If it is necessary to blend the inside of the drum and web area, a flexible borescope with a video monitoring system will make it easier.

    2. SUBTASK 72-41-12-350-053-002 Blend the Disk (Manual Method)

    1. Refer to Figure.

    2. Blend the surface damage such as dents, nicks, scratches and corrosion pits.

    3. Blend repair at location 1 is not permitted.

      4. Blend repair scattered surface damage at location 2 to a maximum depth of 0.005in. (0.127 mm). Do not blend both sides of the disk surfaces at the same location. Additional blend repair limits are given at specific locations on the figure.

      2. All blended areas must be smooth and continuous.

      3. The surface finish must be 63AA or smoother.

      4. The minimum blend area to depth ratio is 100 to 1.

      5. Remove all lifted material.

      6. Remove only the minimum quantity of material that is necessary to do the repair.

      7. If it is necessary to blend the inside of the drum and web area, a flexible borescope with a video monitoring system will make it easier.

    3. SUBTASK 72-41-12-230-056 Examine the Blend Areas

      1. Fluorescent penetrant inspect the blend areas.

    4. SUBTASK 72-41-12-350-054 Identify the Repair

    1. Refer to Figure.

      2. Mark VRS3436 adjacent to the part number.

        1. Make a permanent mark by the procedure given in the SPM TASK 70-09-00-400-501.

        1. Use the deep electrolytic etch method.

        2. See the figure for the electrical contact area.

        3. No burning, pitting or selective attack from the electrical contact is permitted.

    5. Figure: Rear HPC drum disk blend repair

    Rear HPC drum disk blend repair

    Figure: Rear HPC drum disk blend repair

    Rear HPC drum disk blend repair

    Figure: Rear HPC drum disk blend repair

    Rear HPC drum disk blend repair

    Figure: Rear HPC drum disk blend repair

    Rear HPC drum disk blend repair

    Figure: Rear HPC drum disk identify the repair

    Rear HPC drum disk identify the repair

Requirements After Job Completion

Follow-On Conditions

NONE
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:9K848
Enterprise Name:DELETED, SEE CAGE CODE 06565
Manufacturer Code:IAE65
Enterprise Name:DELETED, SEE VENDOR CODE V065V
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:9K848
Supply Number:CoMat 05-143
Type:sp01
Supply Short Name:CoMat 05-143 STONE, BROWN INDIA (MEDIUM)
Supply Name:CoMat 05-143 STONE, BROWN INDIA (MEDIUM)
Specification Groups:
Doc NumberType
MB24 4"x1"x1/2"
Suppliers:
ManufacturerRemarks
9K848
Manufacturer Code:9K848
Supply Number:CoMat 05-144
Type:sp01
Supply Short Name:CoMat 05-144 WHEEL, BEAR-TEX UNIFIED DEBURRING
Supply Name:CoMat 05-144 WHEEL, BEAR-TEX UNIFIED DEBURRING
Specification Groups:
Doc NumberType
58782
Suppliers:
ManufacturerRemarks
9K848
Manufacturer Code:IAE65
Supply Number:CoMat 05-145
Type:sp01
Supply Short Name:CoMat 05-145 WHEEL, CLOTH BUFF
Supply Name:CoMat 05-145 WHEEL, CLOTH BUFF
Specification Groups:
Doc NumberType
86/82 GRAY
Suppliers:
ManufacturerRemarks
IAE65
Manufacturer Code:0AM53
Supply Number:CoMat 05-146
Type:sp01
Supply Short Name:CoMat 05-146 WHEEL, SILICON CARBIDE ABRASIVE COAT DELETED
Supply Name:CoMat 05-146 WHEEL, SILICON CARBIDE ABRASIVE COAT DELETED
Specification Groups:
Doc NumberType
DELETED
Suppliers:
ManufacturerRemarks
0AM53
Manufacturer Code:LOCAL
Supply Number:CoMat 05-147
Type:sp01
Supply Short Name:CoMat 05-147 WHEEL, RUBBER BONDED GRINDING
Supply Name:CoMat 05-147 WHEEL, RUBBER BONDED GRINDING
Specification Groups:
Doc NumberType
C100-102-CHSC
Suppliers:
ManufacturerRemarks
LOCAL
54916
IE224
Manufacturer Code:06565
Supply Number:CoMat 05-148
Type:sp01
Supply Short Name:CoMat 05-148 STONE, WHITE ARKANSAS (HARD)
Supply Name:CoMat 05-148 STONE, WHITE ARKANSAS (HARD)
Specification Groups:
Doc NumberType
HB 4 - 4"x 2"x 3/4"
Suppliers:
ManufacturerRemarks
06565
Manufacturer Code:V065V
Supply Number:CoMat 05-149
Type:sp01
Supply Short Name:CoMat 05-149 COMPOUND, BUFFING AND POLISHING
Supply Name:CoMat 05-149 COMPOUND, BUFFING AND POLISHING
Specification Groups:
Doc NumberType
No. 1062 WHITE POLISHING COMPOUNDMOCO
Suppliers:
ManufacturerRemarks
V065V
56KR1
Manufacturer Code:LOCAL
Tool Number:Rotary equipment
Tool Name:Rotary equipment
Manufacturer Code:LOCAL
Tool Number:Workshop inspection equipment
Tool Name:Workshop inspection equipment