TASK 72-32-81-300-002 LPC Stage 1.5 - 2.5 Drum Disk - Blend Repair, Repair-002 (VRS1363)

DMC:V2500-A0-72-32-8100-01A-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 72-32-81-300-002 LPC Stage 1.5 - 2.5 Drum Disk - Blend Repair, Repair-002 (VRS1363)

Effectivity

FIG/ITEM

PART NO.

01-200

5R7021

General

This Repair scheme gives the procedure for blending disks.

Material of component

RR

DESCRIPTION

SYMBOL

MATERIAL

Disk

Titanium alloy

Price and availability

Refer to IAE for any of these items.

Tools

Repair parts

Repair of spares

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

NOTE

To identify the consumable materials refer to the PCI.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Portablegrinding equipmentLOCALPortable grinding equipment

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 05-020 WATERPROOF SILICON CARBIDELOCALCoMat 05-020
CoMat 05-021 WATERPROOF SILICON CARBIDE44197CoMat 05-021

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-32-81-350-053 Dress to Remove the Damage

      1. CAUTION

        SILICON CARBIDE TYPE WHEELS, STONES AND ABRASIVE PAPERS ARE TO BE USED FOR THIS REPAIR.
        ALUMINUM OXIDE TYPES MUST NOT BE USED.
        THE MATERIAL WILL OXIDIZE AND CRACK IF MECHANICAL CUTTERS ARE USED HEAVILY. THIS HAS OCCURRED IF THE COMPONENT SHOWS DARK STRAW TO BLUE DISCOLORATION. IF AT ANY TIME THIS COLORATION OCCURS THE COMPONENT MUST BE REJECTED.

        Dress to remove the damage in the disk surface and the spigot diameter except knife edge seals, dovetail slots, oil drain holes and bolt holes.

      1. Use portable grinding equipment.

      2. Dress until all the damage is removed.

      3. Refer to Figure.

      2. Blend dressed area and polish out scores.

        1. Maximum blend limit is 0.004 in. (0.10 mm) in depth.

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

    2. SUBTASK 72-32-81-220-059 Examine the Disk

      1. Do a visual inspection.

        1. Visually examine repaired area for nicks, scratches and/or damage.

        1. Use 10X magnifying glass.

        2. Refer to TASK 72-32-81-200-001.

    3. SUBTASK 72-32-81-230-053 Examine the Disk for Cracks

      1. Penetrant crack test for dressed area.

        1. Refer to the SPM TASK 70-23-04-230-501.

        1. Make sure there are no cracks in repaired area.

    4. SUBTASK 72-32-81-350-054 Make a Mark Repair Number

      1. Vibro-engrave VRS1363 on the top surface of the dovetail adjacent to the dovetail where manufacturing number and serial number are marked.

      1. Refer to Figure.

    5. Figure: Disk, A/O LPC

    Disk, A/O LPC

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Corrected the SPM Task number

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: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:LOCAL
Tool Number:Portable grinding equipment
Tool Name:Portablegrinding equipment